/* ====================================================================
- * Copyright (c) 2001 The OpenSSL Project. All rights reserved.
+ * Copyright (c) 2001-2014 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
*
*/
-#define OPENSSL_FIPSAPI
-
#include <openssl/opensslconf.h>
#ifndef OPENSSL_NO_AES
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include <string.h>
-#include <assert.h>
-#include <openssl/aes.h>
-#include <openssl/modes.h>
-#include "evp_locl.h"
+#include <openssl/crypto.h>
+# include <openssl/evp.h>
+# include <openssl/err.h>
+# include <string.h>
+# include <assert.h>
+# include <openssl/aes.h>
+# include "evp_locl.h"
+# include "modes_lcl.h"
+# include <openssl/rand.h>
-static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc);
-
-typedef struct
- {
- AES_KEY ks;
- } EVP_AES_KEY;
-
-#define data(ctx) EVP_C_DATA(EVP_AES_KEY,ctx)
-
-IMPLEMENT_BLOCK_CIPHER(aes_128, ks, AES, EVP_AES_KEY,
- NID_aes_128, 16, 16, 16, 128,
- EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
- aes_init_key, NULL, NULL, NULL, NULL)
-IMPLEMENT_BLOCK_CIPHER(aes_192, ks, AES, EVP_AES_KEY,
- NID_aes_192, 16, 24, 16, 128,
- EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
- aes_init_key, NULL, NULL, NULL, NULL)
-IMPLEMENT_BLOCK_CIPHER(aes_256, ks, AES, EVP_AES_KEY,
- NID_aes_256, 16, 32, 16, 128,
- EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
- aes_init_key, NULL, NULL, NULL, NULL)
-
-#define IMPLEMENT_AES_CFBR(ksize,cbits) IMPLEMENT_CFBR(aes,AES,EVP_AES_KEY,ks,ksize,cbits,16,EVP_CIPH_FLAG_FIPS)
-
-IMPLEMENT_AES_CFBR(128,1)
-IMPLEMENT_AES_CFBR(192,1)
-IMPLEMENT_AES_CFBR(256,1)
-
-IMPLEMENT_AES_CFBR(128,8)
-IMPLEMENT_AES_CFBR(192,8)
-IMPLEMENT_AES_CFBR(256,8)
-
-static int aes_counter (EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len)
-{
- unsigned int num;
- num = ctx->num;
-#ifdef AES_CTR_ASM
- void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
- size_t blocks, const AES_KEY *key,
- const unsigned char ivec[AES_BLOCK_SIZE]);
-
- CRYPTO_ctr128_encrypt_ctr32(in,out,len,
- &((EVP_AES_KEY *)ctx->cipher_data)->ks,
- ctx->iv,ctx->buf,&num,(ctr128_f)AES_ctr32_encrypt);
-#else
- CRYPTO_ctr128_encrypt(in,out,len,
- &((EVP_AES_KEY *)ctx->cipher_data)->ks,
- ctx->iv,ctx->buf,&num,(block128_f)AES_encrypt);
-#endif
- ctx->num = (size_t)num;
- return 1;
-}
-
-static const EVP_CIPHER aes_128_ctr_cipher=
- {
- NID_aes_128_ctr,1,16,16,
- EVP_CIPH_CTR_MODE,
- aes_init_key,
- aes_counter,
- NULL,
- sizeof(EVP_AES_KEY),
- NULL,
- NULL,
- NULL,
- NULL
- };
-
-const EVP_CIPHER *EVP_aes_128_ctr (void)
-{ return &aes_128_ctr_cipher; }
-
-static const EVP_CIPHER aes_192_ctr_cipher=
- {
- NID_aes_192_ctr,1,24,16,
- EVP_CIPH_CTR_MODE,
- aes_init_key,
- aes_counter,
- NULL,
- sizeof(EVP_AES_KEY),
- NULL,
- NULL,
- NULL,
- NULL
- };
-
-const EVP_CIPHER *EVP_aes_192_ctr (void)
-{ return &aes_192_ctr_cipher; }
-
-static const EVP_CIPHER aes_256_ctr_cipher=
- {
- NID_aes_256_ctr,1,32,16,
- EVP_CIPH_CTR_MODE,
- aes_init_key,
- aes_counter,
- NULL,
- sizeof(EVP_AES_KEY),
- NULL,
- NULL,
- NULL,
- NULL
- };
-
-const EVP_CIPHER *EVP_aes_256_ctr (void)
-{ return &aes_256_ctr_cipher; }
+typedef struct {
+ union {
+ double align;
+ AES_KEY ks;
+ } ks;
+ block128_f block;
+ union {
+ cbc128_f cbc;
+ ctr128_f ctr;
+ } stream;
+} EVP_AES_KEY;
+
+typedef struct {
+ union {
+ double align;
+ AES_KEY ks;
+ } ks; /* AES key schedule to use */
+ int key_set; /* Set if key initialised */
+ int iv_set; /* Set if an iv is set */
+ GCM128_CONTEXT gcm;
+ unsigned char *iv; /* Temporary IV store */
+ int ivlen; /* IV length */
+ int taglen;
+ int iv_gen; /* It is OK to generate IVs */
+ int tls_aad_len; /* TLS AAD length */
+ ctr128_f ctr;
+} EVP_AES_GCM_CTX;
+
+typedef struct {
+ union {
+ double align;
+ AES_KEY ks;
+ } ks1, ks2; /* AES key schedules to use */
+ XTS128_CONTEXT xts;
+ void (*stream) (const unsigned char *in,
+ unsigned char *out, size_t length,
+ const AES_KEY *key1, const AES_KEY *key2,
+ const unsigned char iv[16]);
+} EVP_AES_XTS_CTX;
+
+typedef struct {
+ union {
+ double align;
+ AES_KEY ks;
+ } ks; /* AES key schedule to use */
+ int key_set; /* Set if key initialised */
+ int iv_set; /* Set if an iv is set */
+ int tag_set; /* Set if tag is valid */
+ int len_set; /* Set if message length set */
+ int L, M; /* L and M parameters from RFC3610 */
+ int tls_aad_len; /* TLS AAD length */
+ CCM128_CONTEXT ccm;
+ ccm128_f str;
+} EVP_AES_CCM_CTX;
+
+# ifndef OPENSSL_NO_OCB
+typedef struct {
+ union {
+ double align;
+ AES_KEY ks;
+ } ksenc; /* AES key schedule to use for encryption */
+ union {
+ double align;
+ AES_KEY ks;
+ } ksdec; /* AES key schedule to use for decryption */
+ int key_set; /* Set if key initialised */
+ int iv_set; /* Set if an iv is set */
+ OCB128_CONTEXT ocb;
+ unsigned char *iv; /* Temporary IV store */
+ unsigned char tag[16];
+ unsigned char data_buf[16]; /* Store partial data blocks */
+ unsigned char aad_buf[16]; /* Store partial AAD blocks */
+ int data_buf_len;
+ int aad_buf_len;
+ int ivlen; /* IV length */
+ int taglen;
+} EVP_AES_OCB_CTX;
+# endif
+
+# define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
+
+# ifdef VPAES_ASM
+int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
+ AES_KEY *key);
+int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
+ AES_KEY *key);
+
+void vpaes_encrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+void vpaes_decrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+
+void vpaes_cbc_encrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t length,
+ const AES_KEY *key, unsigned char *ivec, int enc);
+# endif
+# ifdef BSAES_ASM
+void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ size_t length, const AES_KEY *key,
+ unsigned char ivec[16], int enc);
+void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ const unsigned char ivec[16]);
+void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
+ size_t len, const AES_KEY *key1,
+ const AES_KEY *key2, const unsigned char iv[16]);
+void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
+ size_t len, const AES_KEY *key1,
+ const AES_KEY *key2, const unsigned char iv[16]);
+# endif
+# ifdef AES_CTR_ASM
+void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key,
+ const unsigned char ivec[AES_BLOCK_SIZE]);
+# endif
+# ifdef AES_XTS_ASM
+void AES_xts_encrypt(const char *inp, char *out, size_t len,
+ const AES_KEY *key1, const AES_KEY *key2,
+ const unsigned char iv[16]);
+void AES_xts_decrypt(const char *inp, char *out, size_t len,
+ const AES_KEY *key1, const AES_KEY *key2,
+ const unsigned char iv[16]);
+# endif
+
+# if defined(OPENSSL_CPUID_OBJ) && (defined(__powerpc__) || defined(__ppc__) || defined(_ARCH_PPC))
+# include "ppc_arch.h"
+# ifdef VPAES_ASM
+# define VPAES_CAPABLE (OPENSSL_ppccap_P & PPC_ALTIVEC)
+# endif
+# define HWAES_CAPABLE (OPENSSL_ppccap_P & PPC_CRYPTO207)
+# define HWAES_set_encrypt_key aes_p8_set_encrypt_key
+# define HWAES_set_decrypt_key aes_p8_set_decrypt_key
+# define HWAES_encrypt aes_p8_encrypt
+# define HWAES_decrypt aes_p8_decrypt
+# define HWAES_cbc_encrypt aes_p8_cbc_encrypt
+# define HWAES_ctr32_encrypt_blocks aes_p8_ctr32_encrypt_blocks
+# endif
+
+# if defined(AES_ASM) && !defined(I386_ONLY) && ( \
+ ((defined(__i386) || defined(__i386__) || \
+ defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
+ defined(__x86_64) || defined(__x86_64__) || \
+ defined(_M_AMD64) || defined(_M_X64) || \
+ defined(__INTEL__) )
+
+extern unsigned int OPENSSL_ia32cap_P[];
+
+# ifdef VPAES_ASM
+# define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
+# endif
+# ifdef BSAES_ASM
+# define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
+# endif
+/*
+ * AES-NI section
+ */
+# define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
+
+int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
+ AES_KEY *key);
+int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
+ AES_KEY *key);
+
+void aesni_encrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+void aesni_decrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+
+void aesni_ecb_encrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t length, const AES_KEY *key, int enc);
+void aesni_cbc_encrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t length,
+ const AES_KEY *key, unsigned char *ivec, int enc);
+
+void aesni_ctr32_encrypt_blocks(const unsigned char *in,
+ unsigned char *out,
+ size_t blocks,
+ const void *key, const unsigned char *ivec);
+
+void aesni_xts_encrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t length,
+ const AES_KEY *key1, const AES_KEY *key2,
+ const unsigned char iv[16]);
+
+void aesni_xts_decrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t length,
+ const AES_KEY *key1, const AES_KEY *key2,
+ const unsigned char iv[16]);
+
+void aesni_ccm64_encrypt_blocks(const unsigned char *in,
+ unsigned char *out,
+ size_t blocks,
+ const void *key,
+ const unsigned char ivec[16],
+ unsigned char cmac[16]);
+
+void aesni_ccm64_decrypt_blocks(const unsigned char *in,
+ unsigned char *out,
+ size_t blocks,
+ const void *key,
+ const unsigned char ivec[16],
+ unsigned char cmac[16]);
+
+# if defined(__x86_64) || defined(__x86_64__) || defined(_M_AMD64) || defined(_M_X64)
+size_t aesni_gcm_encrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t len,
+ const void *key, unsigned char ivec[16], u64 *Xi);
+# define AES_gcm_encrypt aesni_gcm_encrypt
+size_t aesni_gcm_decrypt(const unsigned char *in,
+ unsigned char *out,
+ size_t len,
+ const void *key, unsigned char ivec[16], u64 *Xi);
+# define AES_gcm_decrypt aesni_gcm_decrypt
+void gcm_ghash_avx(u64 Xi[2], const u128 Htable[16], const u8 *in,
+ size_t len);
+# define AES_GCM_ASM(gctx) (gctx->ctr==aesni_ctr32_encrypt_blocks && \
+ gctx->gcm.ghash==gcm_ghash_avx)
+# define AES_GCM_ASM2(gctx) (gctx->gcm.block==(block128_f)aesni_encrypt && \
+ gctx->gcm.ghash==gcm_ghash_avx)
+# undef AES_GCM_ASM2 /* minor size optimization */
+# endif
+
+static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ int ret, mode;
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ mode = ctx->cipher->flags & EVP_CIPH_MODE;
+ if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
+ && !enc) {
+ ret = aesni_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
+ dat->block = (block128_f) aesni_decrypt;
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) aesni_cbc_encrypt : NULL;
+ } else {
+ ret = aesni_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
+ dat->block = (block128_f) aesni_encrypt;
+ if (mode == EVP_CIPH_CBC_MODE)
+ dat->stream.cbc = (cbc128_f) aesni_cbc_encrypt;
+ else if (mode == EVP_CIPH_CTR_MODE)
+ dat->stream.ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
+ else
+ dat->stream.cbc = NULL;
+ }
+
+ if (ret < 0) {
+ EVPerr(EVP_F_AESNI_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ aesni_cbc_encrypt(in, out, len, ctx->cipher_data, ctx->iv, ctx->encrypt);
+
+ return 1;
+}
+
+static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ size_t bl = ctx->cipher->block_size;
+
+ if (len < bl)
+ return 1;
+
+ aesni_ecb_encrypt(in, out, len, ctx->cipher_data, ctx->encrypt);
+
+ return 1;
+}
+
+# define aesni_ofb_cipher aes_ofb_cipher
+static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aesni_cfb_cipher aes_cfb_cipher
+static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aesni_cfb8_cipher aes_cfb8_cipher
+static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aesni_cfb1_cipher aes_cfb1_cipher
+static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aesni_ctr_cipher aes_ctr_cipher
+static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
+ CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f) aesni_encrypt);
+ gctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
+ /*
+ * If we have an iv can set it directly, otherwise use saved IV.
+ */
+ if (iv == NULL && gctx->iv_set)
+ iv = gctx->iv;
+ if (iv) {
+ CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ }
+ gctx->key_set = 1;
+ } else {
+ /* If key set use IV, otherwise copy */
+ if (gctx->key_set)
+ CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
+ else
+ memcpy(gctx->iv, iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ gctx->iv_gen = 0;
+ }
+ return 1;
+}
+
+# define aesni_gcm_cipher aes_gcm_cipher
+static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+
+ if (key) {
+ /* key_len is two AES keys */
+ if (enc) {
+ aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) aesni_encrypt;
+ xctx->stream = aesni_xts_encrypt;
+ } else {
+ aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) aesni_decrypt;
+ xctx->stream = aesni_xts_decrypt;
+ }
+
+ aesni_set_encrypt_key(key + ctx->key_len / 2,
+ ctx->key_len * 4, &xctx->ks2.ks);
+ xctx->xts.block2 = (block128_f) aesni_encrypt;
+
+ xctx->xts.key1 = &xctx->ks1;
+ }
+
+ if (iv) {
+ xctx->xts.key2 = &xctx->ks2;
+ memcpy(ctx->iv, iv, 16);
+ }
+
+ return 1;
+}
+
+# define aesni_xts_cipher aes_xts_cipher
+static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
+ CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
+ &cctx->ks, (block128_f) aesni_encrypt);
+ cctx->str = enc ? (ccm128_f) aesni_ccm64_encrypt_blocks :
+ (ccm128_f) aesni_ccm64_decrypt_blocks;
+ cctx->key_set = 1;
+ }
+ if (iv) {
+ memcpy(ctx->iv, iv, 15 - cctx->L);
+ cctx->iv_set = 1;
+ }
+ return 1;
+}
+
+# define aesni_ccm_cipher aes_ccm_cipher
+static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# ifndef OPENSSL_NO_OCB
+void aesni_ocb_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const void *key,
+ size_t start_block_num,
+ unsigned char offset_i[16],
+ const unsigned char L_[][16],
+ unsigned char checksum[16]);
+void aesni_ocb_decrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const void *key,
+ size_t start_block_num,
+ unsigned char offset_i[16],
+ const unsigned char L_[][16],
+ unsigned char checksum[16]);
+
+static int aesni_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_OCB_CTX *octx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ do {
+ /*
+ * We set both the encrypt and decrypt key here because decrypt
+ * needs both. We could possibly optimise to remove setting the
+ * decrypt for an encryption operation.
+ */
+ aesni_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
+ aesni_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
+ if (!CRYPTO_ocb128_init(&octx->ocb,
+ &octx->ksenc.ks, &octx->ksdec.ks,
+ (block128_f) aesni_encrypt,
+ (block128_f) aesni_decrypt,
+ enc ? aesni_ocb_encrypt
+ : aesni_ocb_decrypt))
+ return 0;
+ }
+ while (0);
+
+ /*
+ * If we have an iv we can set it directly, otherwise use saved IV.
+ */
+ if (iv == NULL && octx->iv_set)
+ iv = octx->iv;
+ if (iv) {
+ if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
+ != 1)
+ return 0;
+ octx->iv_set = 1;
+ }
+ octx->key_set = 1;
+ } else {
+ /* If key set use IV, otherwise copy */
+ if (octx->key_set)
+ CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
+ else
+ memcpy(octx->iv, iv, octx->ivlen);
+ octx->iv_set = 1;
+ }
+ return 1;
+}
+
+# define aesni_ocb_cipher aes_ocb_cipher
+static int aesni_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+# endif /* OPENSSL_NO_OCB */
+
+# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
+static const EVP_CIPHER aesni_##keylen##_##mode = { \
+ nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aesni_init_key, \
+ aesni_##mode##_cipher, \
+ NULL, \
+ sizeof(EVP_AES_KEY), \
+ NULL,NULL,NULL,NULL }; \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##nmode,blocksize, \
+ keylen/8,ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_init_key, \
+ aes_##mode##_cipher, \
+ NULL, \
+ sizeof(EVP_AES_KEY), \
+ NULL,NULL,NULL,NULL }; \
+const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
+{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
+
+# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
+static const EVP_CIPHER aesni_##keylen##_##mode = { \
+ nid##_##keylen##_##mode,blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aesni_##mode##_init_key, \
+ aesni_##mode##_cipher, \
+ aes_##mode##_cleanup, \
+ sizeof(EVP_AES_##MODE##_CTX), \
+ NULL,NULL,aes_##mode##_ctrl,NULL }; \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##mode,blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_##mode##_init_key, \
+ aes_##mode##_cipher, \
+ aes_##mode##_cleanup, \
+ sizeof(EVP_AES_##MODE##_CTX), \
+ NULL,NULL,aes_##mode##_ctrl,NULL }; \
+const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
+{ return AESNI_CAPABLE?&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
+
+# elif defined(AES_ASM) && (defined(__sparc) || defined(__sparc__))
+
+# include "sparc_arch.h"
+
+extern unsigned int OPENSSL_sparcv9cap_P[];
+
+# define SPARC_AES_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_AES)
+
+void aes_t4_set_encrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
+void aes_t4_set_decrypt_key(const unsigned char *key, int bits, AES_KEY *ks);
+void aes_t4_encrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+void aes_t4_decrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+/*
+ * Key-length specific subroutines were chosen for following reason.
+ * Each SPARC T4 core can execute up to 8 threads which share core's
+ * resources. Loading as much key material to registers allows to
+ * minimize references to shared memory interface, as well as amount
+ * of instructions in inner loops [much needed on T4]. But then having
+ * non-key-length specific routines would require conditional branches
+ * either in inner loops or on subroutines' entries. Former is hardly
+ * acceptable, while latter means code size increase to size occupied
+ * by multiple key-length specfic subroutines, so why fight?
+ */
+void aes128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ unsigned char *ivec);
+void aes128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ unsigned char *ivec);
+void aes192_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ unsigned char *ivec);
+void aes192_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ unsigned char *ivec);
+void aes256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ unsigned char *ivec);
+void aes256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ unsigned char *ivec);
+void aes128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key,
+ unsigned char *ivec);
+void aes192_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key,
+ unsigned char *ivec);
+void aes256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key,
+ unsigned char *ivec);
+void aes128_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key1,
+ const AES_KEY *key2, const unsigned char *ivec);
+void aes128_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key1,
+ const AES_KEY *key2, const unsigned char *ivec);
+void aes256_t4_xts_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key1,
+ const AES_KEY *key2, const unsigned char *ivec);
+void aes256_t4_xts_decrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const AES_KEY *key1,
+ const AES_KEY *key2, const unsigned char *ivec);
+
+static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ int ret, mode, bits;
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ mode = ctx->cipher->flags & EVP_CIPH_MODE;
+ bits = ctx->key_len * 8;
+ if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
+ && !enc) {
+ ret = 0;
+ aes_t4_set_decrypt_key(key, bits, ctx->cipher_data);
+ dat->block = (block128_f) aes_t4_decrypt;
+ switch (bits) {
+ case 128:
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) aes128_t4_cbc_decrypt : NULL;
+ break;
+ case 192:
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) aes192_t4_cbc_decrypt : NULL;
+ break;
+ case 256:
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) aes256_t4_cbc_decrypt : NULL;
+ break;
+ default:
+ ret = -1;
+ }
+ } else {
+ ret = 0;
+ aes_t4_set_encrypt_key(key, bits, ctx->cipher_data);
+ dat->block = (block128_f) aes_t4_encrypt;
+ switch (bits) {
+ case 128:
+ if (mode == EVP_CIPH_CBC_MODE)
+ dat->stream.cbc = (cbc128_f) aes128_t4_cbc_encrypt;
+ else if (mode == EVP_CIPH_CTR_MODE)
+ dat->stream.ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
+ else
+ dat->stream.cbc = NULL;
+ break;
+ case 192:
+ if (mode == EVP_CIPH_CBC_MODE)
+ dat->stream.cbc = (cbc128_f) aes192_t4_cbc_encrypt;
+ else if (mode == EVP_CIPH_CTR_MODE)
+ dat->stream.ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
+ else
+ dat->stream.cbc = NULL;
+ break;
+ case 256:
+ if (mode == EVP_CIPH_CBC_MODE)
+ dat->stream.cbc = (cbc128_f) aes256_t4_cbc_encrypt;
+ else if (mode == EVP_CIPH_CTR_MODE)
+ dat->stream.ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
+ else
+ dat->stream.cbc = NULL;
+ break;
+ default:
+ ret = -1;
+ }
+ }
+
+ if (ret < 0) {
+ EVPerr(EVP_F_AES_T4_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
+ return 0;
+ }
+
+ return 1;
+}
+
+# define aes_t4_cbc_cipher aes_cbc_cipher
+static int aes_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aes_t4_ecb_cipher aes_ecb_cipher
+static int aes_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aes_t4_ofb_cipher aes_ofb_cipher
+static int aes_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aes_t4_cfb_cipher aes_cfb_cipher
+static int aes_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aes_t4_cfb8_cipher aes_cfb8_cipher
+static int aes_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aes_t4_cfb1_cipher aes_cfb1_cipher
+static int aes_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# define aes_t4_ctr_cipher aes_ctr_cipher
+static int aes_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+static int aes_t4_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ int bits = ctx->key_len * 8;
+ aes_t4_set_encrypt_key(key, bits, &gctx->ks.ks);
+ CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
+ (block128_f) aes_t4_encrypt);
+ switch (bits) {
+ case 128:
+ gctx->ctr = (ctr128_f) aes128_t4_ctr32_encrypt;
+ break;
+ case 192:
+ gctx->ctr = (ctr128_f) aes192_t4_ctr32_encrypt;
+ break;
+ case 256:
+ gctx->ctr = (ctr128_f) aes256_t4_ctr32_encrypt;
+ break;
+ default:
+ return 0;
+ }
+ /*
+ * If we have an iv can set it directly, otherwise use saved IV.
+ */
+ if (iv == NULL && gctx->iv_set)
+ iv = gctx->iv;
+ if (iv) {
+ CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ }
+ gctx->key_set = 1;
+ } else {
+ /* If key set use IV, otherwise copy */
+ if (gctx->key_set)
+ CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
+ else
+ memcpy(gctx->iv, iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ gctx->iv_gen = 0;
+ }
+ return 1;
+}
+
+# define aes_t4_gcm_cipher aes_gcm_cipher
+static int aes_t4_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+static int aes_t4_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+
+ if (key) {
+ int bits = ctx->key_len * 4;
+ xctx->stream = NULL;
+ /* key_len is two AES keys */
+ if (enc) {
+ aes_t4_set_encrypt_key(key, bits, &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) aes_t4_encrypt;
+ switch (bits) {
+ case 128:
+ xctx->stream = aes128_t4_xts_encrypt;
+ break;
+ case 256:
+ xctx->stream = aes256_t4_xts_encrypt;
+ break;
+ default:
+ return 0;
+ }
+ } else {
+ aes_t4_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) aes_t4_decrypt;
+ switch (bits) {
+ case 128:
+ xctx->stream = aes128_t4_xts_decrypt;
+ break;
+ case 256:
+ xctx->stream = aes256_t4_xts_decrypt;
+ break;
+ default:
+ return 0;
+ }
+ }
+
+ aes_t4_set_encrypt_key(key + ctx->key_len / 2,
+ ctx->key_len * 4, &xctx->ks2.ks);
+ xctx->xts.block2 = (block128_f) aes_t4_encrypt;
+
+ xctx->xts.key1 = &xctx->ks1;
+ }
+
+ if (iv) {
+ xctx->xts.key2 = &xctx->ks2;
+ memcpy(ctx->iv, iv, 16);
+ }
+
+ return 1;
+}
+
+# define aes_t4_xts_cipher aes_xts_cipher
+static int aes_t4_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+static int aes_t4_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ int bits = ctx->key_len * 8;
+ aes_t4_set_encrypt_key(key, bits, &cctx->ks.ks);
+ CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
+ &cctx->ks, (block128_f) aes_t4_encrypt);
+ cctx->str = NULL;
+ cctx->key_set = 1;
+ }
+ if (iv) {
+ memcpy(ctx->iv, iv, 15 - cctx->L);
+ cctx->iv_set = 1;
+ }
+ return 1;
+}
+
+# define aes_t4_ccm_cipher aes_ccm_cipher
+static int aes_t4_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+
+# ifndef OPENSSL_NO_OCB
+static int aes_t4_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_OCB_CTX *octx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ do {
+ /*
+ * We set both the encrypt and decrypt key here because decrypt
+ * needs both. We could possibly optimise to remove setting the
+ * decrypt for an encryption operation.
+ */
+ aes_t4_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
+ aes_t4_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
+ if (!CRYPTO_ocb128_init(&octx->ocb,
+ &octx->ksenc.ks, &octx->ksdec.ks,
+ (block128_f) aes_t4_encrypt,
+ (block128_f) aes_t4_decrypt,
+ NULL))
+ return 0;
+ }
+ while (0);
+
+ /*
+ * If we have an iv we can set it directly, otherwise use saved IV.
+ */
+ if (iv == NULL && octx->iv_set)
+ iv = octx->iv;
+ if (iv) {
+ if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
+ != 1)
+ return 0;
+ octx->iv_set = 1;
+ }
+ octx->key_set = 1;
+ } else {
+ /* If key set use IV, otherwise copy */
+ if (octx->key_set)
+ CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
+ else
+ memcpy(octx->iv, iv, octx->ivlen);
+ octx->iv_set = 1;
+ }
+ return 1;
+}
+
+# define aes_t4_ocb_cipher aes_ocb_cipher
+static int aes_t4_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len);
+# endif /* OPENSSL_NO_OCB */
+
+# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
+static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
+ nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_t4_init_key, \
+ aes_t4_##mode##_cipher, \
+ NULL, \
+ sizeof(EVP_AES_KEY), \
+ NULL,NULL,NULL,NULL }; \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##nmode,blocksize, \
+ keylen/8,ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_init_key, \
+ aes_##mode##_cipher, \
+ NULL, \
+ sizeof(EVP_AES_KEY), \
+ NULL,NULL,NULL,NULL }; \
+const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
+{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
+
+# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
+static const EVP_CIPHER aes_t4_##keylen##_##mode = { \
+ nid##_##keylen##_##mode,blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_t4_##mode##_init_key, \
+ aes_t4_##mode##_cipher, \
+ aes_##mode##_cleanup, \
+ sizeof(EVP_AES_##MODE##_CTX), \
+ NULL,NULL,aes_##mode##_ctrl,NULL }; \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##mode,blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_##mode##_init_key, \
+ aes_##mode##_cipher, \
+ aes_##mode##_cleanup, \
+ sizeof(EVP_AES_##MODE##_CTX), \
+ NULL,NULL,aes_##mode##_ctrl,NULL }; \
+const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
+{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
+
+# else
+
+# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_init_key, \
+ aes_##mode##_cipher, \
+ NULL, \
+ sizeof(EVP_AES_KEY), \
+ NULL,NULL,NULL,NULL }; \
+const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
+{ return &aes_##keylen##_##mode; }
+
+# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##mode,blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
+ flags|EVP_CIPH_##MODE##_MODE, \
+ aes_##mode##_init_key, \
+ aes_##mode##_cipher, \
+ aes_##mode##_cleanup, \
+ sizeof(EVP_AES_##MODE##_CTX), \
+ NULL,NULL,aes_##mode##_ctrl,NULL }; \
+const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
+{ return &aes_##keylen##_##mode; }
+
+# endif
+
+# if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__))
+# include "arm_arch.h"
+# if __ARM_MAX_ARCH__>=7
+# if defined(BSAES_ASM)
+# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
+# endif
+# if defined(VPAES_ASM)
+# define VPAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON)
+# endif
+# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES)
+# define HWAES_set_encrypt_key aes_v8_set_encrypt_key
+# define HWAES_set_decrypt_key aes_v8_set_decrypt_key
+# define HWAES_encrypt aes_v8_encrypt
+# define HWAES_decrypt aes_v8_decrypt
+# define HWAES_cbc_encrypt aes_v8_cbc_encrypt
+# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks
+# endif
+# endif
+
+# if defined(HWAES_CAPABLE)
+int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
+ AES_KEY *key);
+int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
+ AES_KEY *key);
+void HWAES_encrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+void HWAES_decrypt(const unsigned char *in, unsigned char *out,
+ const AES_KEY *key);
+void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
+ size_t length, const AES_KEY *key,
+ unsigned char *ivec, const int enc);
+void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
+ size_t len, const AES_KEY *key,
+ const unsigned char ivec[16]);
+# endif
+
+# define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
+ BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
+ BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
+ BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
+ BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
+ BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
+ BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
+ BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc)
- {
- int ret;
-
- if (((ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_ECB_MODE
- || (ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_CBC_MODE)
- && !enc)
- ret=AES_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
- else
- ret=AES_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
-
- if(ret < 0)
- {
- EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
- return 0;
- }
-
- return 1;
- }
+ const unsigned char *iv, int enc)
+{
+ int ret, mode;
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ mode = ctx->cipher->flags & EVP_CIPH_MODE;
+ if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
+ && !enc)
+# ifdef HWAES_CAPABLE
+ if (HWAES_CAPABLE) {
+ ret = HWAES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) HWAES_decrypt;
+ dat->stream.cbc = NULL;
+# ifdef HWAES_cbc_encrypt
+ if (mode == EVP_CIPH_CBC_MODE)
+ dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
+# endif
+ } else
+# endif
+# ifdef BSAES_CAPABLE
+ if (BSAES_CAPABLE && mode == EVP_CIPH_CBC_MODE) {
+ ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) AES_decrypt;
+ dat->stream.cbc = (cbc128_f) bsaes_cbc_encrypt;
+ } else
+# endif
+# ifdef VPAES_CAPABLE
+ if (VPAES_CAPABLE) {
+ ret = vpaes_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) vpaes_decrypt;
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) vpaes_cbc_encrypt : NULL;
+ } else
+# endif
+ {
+ ret = AES_set_decrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) AES_decrypt;
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) AES_cbc_encrypt : NULL;
+ } else
+# ifdef HWAES_CAPABLE
+ if (HWAES_CAPABLE) {
+ ret = HWAES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) HWAES_encrypt;
+ dat->stream.cbc = NULL;
+# ifdef HWAES_cbc_encrypt
+ if (mode == EVP_CIPH_CBC_MODE)
+ dat->stream.cbc = (cbc128_f) HWAES_cbc_encrypt;
+ else
+# endif
+# ifdef HWAES_ctr32_encrypt_blocks
+ if (mode == EVP_CIPH_CTR_MODE)
+ dat->stream.ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
+ else
+# endif
+ (void)0; /* terminate potentially open 'else' */
+ } else
+# endif
+# ifdef BSAES_CAPABLE
+ if (BSAES_CAPABLE && mode == EVP_CIPH_CTR_MODE) {
+ ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) AES_encrypt;
+ dat->stream.ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
+ } else
+# endif
+# ifdef VPAES_CAPABLE
+ if (VPAES_CAPABLE) {
+ ret = vpaes_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) vpaes_encrypt;
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) vpaes_cbc_encrypt : NULL;
+ } else
+# endif
+ {
+ ret = AES_set_encrypt_key(key, ctx->key_len * 8, &dat->ks.ks);
+ dat->block = (block128_f) AES_encrypt;
+ dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ?
+ (cbc128_f) AES_cbc_encrypt : NULL;
+# ifdef AES_CTR_ASM
+ if (mode == EVP_CIPH_CTR_MODE)
+ dat->stream.ctr = (ctr128_f) AES_ctr32_encrypt;
+# endif
+ }
+
+ if (ret < 0) {
+ EVPerr(EVP_F_AES_INIT_KEY, EVP_R_AES_KEY_SETUP_FAILED);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ if (dat->stream.cbc)
+ (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, ctx->encrypt);
+ else if (ctx->encrypt)
+ CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
+ else
+ CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block);
+
+ return 1;
+}
+
+static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ size_t bl = ctx->cipher->block_size;
+ size_t i;
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ if (len < bl)
+ return 1;
+
+ for (i = 0, len -= bl; i <= len; i += bl)
+ (*dat->block) (in + i, out + i, &dat->ks);
+
+ return 1;
+}
+
+static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
+ ctx->iv, &ctx->num, dat->block);
+ return 1;
+}
+
+static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
+ ctx->iv, &ctx->num, ctx->encrypt, dat->block);
+ return 1;
+}
+
+static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
+ ctx->iv, &ctx->num, ctx->encrypt, dat->block);
+ return 1;
+}
+
+static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ if (ctx->flags & EVP_CIPH_FLAG_LENGTH_BITS) {
+ CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
+ ctx->iv, &ctx->num, ctx->encrypt, dat->block);
+ return 1;
+ }
+
+ while (len >= MAXBITCHUNK) {
+ CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
+ ctx->iv, &ctx->num, ctx->encrypt, dat->block);
+ len -= MAXBITCHUNK;
+ }
+ if (len)
+ CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
+ ctx->iv, &ctx->num, ctx->encrypt, dat->block);
+
+ return 1;
+}
+
+static int aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ unsigned int num = ctx->num;
+ EVP_AES_KEY *dat = (EVP_AES_KEY *) ctx->cipher_data;
+
+ if (dat->stream.ctr)
+ CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
+ ctx->iv, ctx->buf, &num, dat->stream.ctr);
+ else
+ CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
+ ctx->iv, ctx->buf, &num, dat->block);
+ ctx->num = (size_t)num;
+ return 1;
+}
+
+BLOCK_CIPHER_generic_pack(NID_aes, 128, 0)
+ BLOCK_CIPHER_generic_pack(NID_aes, 192, 0)
+ BLOCK_CIPHER_generic_pack(NID_aes, 256, 0)
+
+static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
+{
+ EVP_AES_GCM_CTX *gctx = c->cipher_data;
+ OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
+ if (gctx->iv != c->iv)
+ OPENSSL_free(gctx->iv);
+ return 1;
+}
+
+/* increment counter (64-bit int) by 1 */
+static void ctr64_inc(unsigned char *counter)
+{
+ int n = 8;
+ unsigned char c;
+
+ do {
+ --n;
+ c = counter[n];
+ ++c;
+ counter[n] = c;
+ if (c)
+ return;
+ } while (n);
+}
+
+static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+{
+ EVP_AES_GCM_CTX *gctx = c->cipher_data;
+ switch (type) {
+ case EVP_CTRL_INIT:
+ gctx->key_set = 0;
+ gctx->iv_set = 0;
+ gctx->ivlen = c->cipher->iv_len;
+ gctx->iv = c->iv;
+ gctx->taglen = -1;
+ gctx->iv_gen = 0;
+ gctx->tls_aad_len = -1;
+ return 1;
+
+ case EVP_CTRL_AEAD_SET_IVLEN:
+ if (arg <= 0)
+ return 0;
+ /* Allocate memory for IV if needed */
+ if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen)) {
+ if (gctx->iv != c->iv)
+ OPENSSL_free(gctx->iv);
+ gctx->iv = OPENSSL_malloc(arg);
+ if (gctx->iv == NULL)
+ return 0;
+ }
+ gctx->ivlen = arg;
+ return 1;
+
+ case EVP_CTRL_AEAD_SET_TAG:
+ if (arg <= 0 || arg > 16 || c->encrypt)
+ return 0;
+ memcpy(c->buf, ptr, arg);
+ gctx->taglen = arg;
+ return 1;
+
+ case EVP_CTRL_AEAD_GET_TAG:
+ if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
+ return 0;
+ memcpy(ptr, c->buf, arg);
+ return 1;
+
+ case EVP_CTRL_GCM_SET_IV_FIXED:
+ /* Special case: -1 length restores whole IV */
+ if (arg == -1) {
+ memcpy(gctx->iv, ptr, gctx->ivlen);
+ gctx->iv_gen = 1;
+ return 1;
+ }
+ /*
+ * Fixed field must be at least 4 bytes and invocation field at least
+ * 8.
+ */
+ if ((arg < 4) || (gctx->ivlen - arg) < 8)
+ return 0;
+ if (arg)
+ memcpy(gctx->iv, ptr, arg);
+ if (c->encrypt && RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
+ return 0;
+ gctx->iv_gen = 1;
+ return 1;
+
+ case EVP_CTRL_GCM_IV_GEN:
+ if (gctx->iv_gen == 0 || gctx->key_set == 0)
+ return 0;
+ CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
+ if (arg <= 0 || arg > gctx->ivlen)
+ arg = gctx->ivlen;
+ memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
+ /*
+ * Invocation field will be at least 8 bytes in size and so no need
+ * to check wrap around or increment more than last 8 bytes.
+ */
+ ctr64_inc(gctx->iv + gctx->ivlen - 8);
+ gctx->iv_set = 1;
+ return 1;
+
+ case EVP_CTRL_GCM_SET_IV_INV:
+ if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
+ return 0;
+ memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
+ CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ return 1;
+
+ case EVP_CTRL_AEAD_TLS1_AAD:
+ /* Save the AAD for later use */
+ if (arg != EVP_AEAD_TLS1_AAD_LEN)
+ return 0;
+ memcpy(c->buf, ptr, arg);
+ gctx->tls_aad_len = arg;
+ {
+ unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
+ /* Correct length for explicit IV */
+ len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ /* If decrypting correct for tag too */
+ if (!c->encrypt)
+ len -= EVP_GCM_TLS_TAG_LEN;
+ c->buf[arg - 2] = len >> 8;
+ c->buf[arg - 1] = len & 0xff;
+ }
+ /* Extra padding: tag appended to record */
+ return EVP_GCM_TLS_TAG_LEN;
+
+ case EVP_CTRL_COPY:
+ {
+ EVP_CIPHER_CTX *out = ptr;
+ EVP_AES_GCM_CTX *gctx_out = out->cipher_data;
+ if (gctx->gcm.key) {
+ if (gctx->gcm.key != &gctx->ks)
+ return 0;
+ gctx_out->gcm.key = &gctx_out->ks;
+ }
+ if (gctx->iv == c->iv)
+ gctx_out->iv = out->iv;
+ else {
+ gctx_out->iv = OPENSSL_malloc(gctx->ivlen);
+ if (gctx_out->iv == NULL)
+ return 0;
+ memcpy(gctx_out->iv, gctx->iv, gctx->ivlen);
+ }
+ return 1;
+ }
+
+ default:
+ return -1;
+
+ }
+}
+
+static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ do {
+# ifdef HWAES_CAPABLE
+ if (HWAES_CAPABLE) {
+ HWAES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
+ CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
+ (block128_f) HWAES_encrypt);
+# ifdef HWAES_ctr32_encrypt_blocks
+ gctx->ctr = (ctr128_f) HWAES_ctr32_encrypt_blocks;
+# else
+ gctx->ctr = NULL;
+# endif
+ break;
+ } else
+# endif
+# ifdef BSAES_CAPABLE
+ if (BSAES_CAPABLE) {
+ AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
+ CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
+ (block128_f) AES_encrypt);
+ gctx->ctr = (ctr128_f) bsaes_ctr32_encrypt_blocks;
+ break;
+ } else
+# endif
+# ifdef VPAES_CAPABLE
+ if (VPAES_CAPABLE) {
+ vpaes_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
+ CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
+ (block128_f) vpaes_encrypt);
+ gctx->ctr = NULL;
+ break;
+ } else
+# endif
+ (void)0; /* terminate potentially open 'else' */
+
+ AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
+ CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
+ (block128_f) AES_encrypt);
+# ifdef AES_CTR_ASM
+ gctx->ctr = (ctr128_f) AES_ctr32_encrypt;
+# else
+ gctx->ctr = NULL;
+# endif
+ } while (0);
+
+ /*
+ * If we have an iv can set it directly, otherwise use saved IV.
+ */
+ if (iv == NULL && gctx->iv_set)
+ iv = gctx->iv;
+ if (iv) {
+ CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ }
+ gctx->key_set = 1;
+ } else {
+ /* If key set use IV, otherwise copy */
+ if (gctx->key_set)
+ CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
+ else
+ memcpy(gctx->iv, iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ gctx->iv_gen = 0;
+ }
+ return 1;
+}
+
+/*
+ * Handle TLS GCM packet format. This consists of the last portion of the IV
+ * followed by the payload and finally the tag. On encrypt generate IV,
+ * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
+ * and verify tag.
+ */
+
+static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
+ int rv = -1;
+ /* Encrypt/decrypt must be performed in place */
+ if (out != in
+ || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
+ return -1;
+ /*
+ * Set IV from start of buffer or generate IV and write to start of
+ * buffer.
+ */
+ if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
+ EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
+ EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
+ goto err;
+ /* Use saved AAD */
+ if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
+ goto err;
+ /* Fix buffer and length to point to payload */
+ in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
+ len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
+ if (ctx->encrypt) {
+ /* Encrypt payload */
+ if (gctx->ctr) {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM)
+ if (len >= 32 && AES_GCM_ASM(gctx)) {
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
+ return -1;
+
+ bulk = AES_gcm_encrypt(in, out, len,
+ gctx->gcm.key,
+ gctx->gcm.Yi.c, gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ }
+# endif
+ if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
+ in + bulk,
+ out + bulk,
+ len - bulk, gctx->ctr))
+ goto err;
+ } else {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM2)
+ if (len >= 32 && AES_GCM_ASM2(gctx)) {
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm, NULL, NULL, 0))
+ return -1;
+
+ bulk = AES_gcm_encrypt(in, out, len,
+ gctx->gcm.key,
+ gctx->gcm.Yi.c, gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ }
+# endif
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm,
+ in + bulk, out + bulk, len - bulk))
+ goto err;
+ }
+ out += len;
+ /* Finally write tag */
+ CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
+ rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
+ } else {
+ /* Decrypt */
+ if (gctx->ctr) {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM)
+ if (len >= 16 && AES_GCM_ASM(gctx)) {
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
+ return -1;
+
+ bulk = AES_gcm_decrypt(in, out, len,
+ gctx->gcm.key,
+ gctx->gcm.Yi.c, gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ }
+# endif
+ if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
+ in + bulk,
+ out + bulk,
+ len - bulk, gctx->ctr))
+ goto err;
+ } else {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM2)
+ if (len >= 16 && AES_GCM_ASM2(gctx)) {
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm, NULL, NULL, 0))
+ return -1;
+
+ bulk = AES_gcm_decrypt(in, out, len,
+ gctx->gcm.key,
+ gctx->gcm.Yi.c, gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ }
+# endif
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm,
+ in + bulk, out + bulk, len - bulk))
+ goto err;
+ }
+ /* Retrieve tag */
+ CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, EVP_GCM_TLS_TAG_LEN);
+ /* If tag mismatch wipe buffer */
+ if (CRYPTO_memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN)) {
+ OPENSSL_cleanse(out, len);
+ goto err;
+ }
+ rv = len;
+ }
+
+ err:
+ gctx->iv_set = 0;
+ gctx->tls_aad_len = -1;
+ return rv;
+}
+
+static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
+ /* If not set up, return error */
+ if (!gctx->key_set)
+ return -1;
+
+ if (gctx->tls_aad_len >= 0)
+ return aes_gcm_tls_cipher(ctx, out, in, len);
+
+ if (!gctx->iv_set)
+ return -1;
+ if (in) {
+ if (out == NULL) {
+ if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
+ return -1;
+ } else if (ctx->encrypt) {
+ if (gctx->ctr) {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM)
+ if (len >= 32 && AES_GCM_ASM(gctx)) {
+ size_t res = (16 - gctx->gcm.mres) % 16;
+
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
+ return -1;
+
+ bulk = AES_gcm_encrypt(in + res,
+ out + res, len - res,
+ gctx->gcm.key, gctx->gcm.Yi.c,
+ gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ bulk += res;
+ }
+# endif
+ if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
+ in + bulk,
+ out + bulk,
+ len - bulk, gctx->ctr))
+ return -1;
+ } else {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM2)
+ if (len >= 32 && AES_GCM_ASM2(gctx)) {
+ size_t res = (16 - gctx->gcm.mres) % 16;
+
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, res))
+ return -1;
+
+ bulk = AES_gcm_encrypt(in + res,
+ out + res, len - res,
+ gctx->gcm.key, gctx->gcm.Yi.c,
+ gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ bulk += res;
+ }
+# endif
+ if (CRYPTO_gcm128_encrypt(&gctx->gcm,
+ in + bulk, out + bulk, len - bulk))
+ return -1;
+ }
+ } else {
+ if (gctx->ctr) {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM)
+ if (len >= 16 && AES_GCM_ASM(gctx)) {
+ size_t res = (16 - gctx->gcm.mres) % 16;
+
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
+ return -1;
+
+ bulk = AES_gcm_decrypt(in + res,
+ out + res, len - res,
+ gctx->gcm.key,
+ gctx->gcm.Yi.c, gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ bulk += res;
+ }
+# endif
+ if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
+ in + bulk,
+ out + bulk,
+ len - bulk, gctx->ctr))
+ return -1;
+ } else {
+ size_t bulk = 0;
+# if defined(AES_GCM_ASM2)
+ if (len >= 16 && AES_GCM_ASM2(gctx)) {
+ size_t res = (16 - gctx->gcm.mres) % 16;
+
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, res))
+ return -1;
+
+ bulk = AES_gcm_decrypt(in + res,
+ out + res, len - res,
+ gctx->gcm.key,
+ gctx->gcm.Yi.c, gctx->gcm.Xi.u);
+ gctx->gcm.len.u[1] += bulk;
+ bulk += res;
+ }
+# endif
+ if (CRYPTO_gcm128_decrypt(&gctx->gcm,
+ in + bulk, out + bulk, len - bulk))
+ return -1;
+ }
+ }
+ return len;
+ } else {
+ if (!ctx->encrypt) {
+ if (gctx->taglen < 0)
+ return -1;
+ if (CRYPTO_gcm128_finish(&gctx->gcm, ctx->buf, gctx->taglen) != 0)
+ return -1;
+ gctx->iv_set = 0;
+ return 0;
+ }
+ CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
+ gctx->taglen = 16;
+ /* Don't reuse the IV */
+ gctx->iv_set = 0;
+ return 0;
+ }
+
+}
+
+# define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
+ | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
+ | EVP_CIPH_CUSTOM_COPY)
+
+BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, gcm, GCM,
+ EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, gcm, GCM,
+ EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, gcm, GCM,
+ EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
+
+static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+{
+ EVP_AES_XTS_CTX *xctx = c->cipher_data;
+ if (type == EVP_CTRL_COPY) {
+ EVP_CIPHER_CTX *out = ptr;
+ EVP_AES_XTS_CTX *xctx_out = out->cipher_data;
+ if (xctx->xts.key1) {
+ if (xctx->xts.key1 != &xctx->ks1)
+ return 0;
+ xctx_out->xts.key1 = &xctx_out->ks1;
+ }
+ if (xctx->xts.key2) {
+ if (xctx->xts.key2 != &xctx->ks2)
+ return 0;
+ xctx_out->xts.key2 = &xctx_out->ks2;
+ }
+ return 1;
+ } else if (type != EVP_CTRL_INIT)
+ return -1;
+ /* key1 and key2 are used as an indicator both key and IV are set */
+ xctx->xts.key1 = NULL;
+ xctx->xts.key2 = NULL;
+ return 1;
+}
+
+static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+
+ if (key)
+ do {
+# ifdef AES_XTS_ASM
+ xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
+# else
+ xctx->stream = NULL;
+# endif
+ /* key_len is two AES keys */
+# ifdef HWAES_CAPABLE
+ if (HWAES_CAPABLE) {
+ if (enc) {
+ HWAES_set_encrypt_key(key, ctx->key_len * 4,
+ &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) HWAES_encrypt;
+ } else {
+ HWAES_set_decrypt_key(key, ctx->key_len * 4,
+ &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) HWAES_decrypt;
+ }
+
+ HWAES_set_encrypt_key(key + ctx->key_len / 2,
+ ctx->key_len * 4, &xctx->ks2.ks);
+ xctx->xts.block2 = (block128_f) HWAES_encrypt;
+
+ xctx->xts.key1 = &xctx->ks1;
+ break;
+ } else
+# endif
+# ifdef BSAES_CAPABLE
+ if (BSAES_CAPABLE)
+ xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
+ else
+# endif
+# ifdef VPAES_CAPABLE
+ if (VPAES_CAPABLE) {
+ if (enc) {
+ vpaes_set_encrypt_key(key, ctx->key_len * 4,
+ &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) vpaes_encrypt;
+ } else {
+ vpaes_set_decrypt_key(key, ctx->key_len * 4,
+ &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) vpaes_decrypt;
+ }
+
+ vpaes_set_encrypt_key(key + ctx->key_len / 2,
+ ctx->key_len * 4, &xctx->ks2.ks);
+ xctx->xts.block2 = (block128_f) vpaes_encrypt;
+
+ xctx->xts.key1 = &xctx->ks1;
+ break;
+ } else
+# endif
+ (void)0; /* terminate potentially open 'else' */
+
+ if (enc) {
+ AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) AES_encrypt;
+ } else {
+ AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
+ xctx->xts.block1 = (block128_f) AES_decrypt;
+ }
+
+ AES_set_encrypt_key(key + ctx->key_len / 2,
+ ctx->key_len * 4, &xctx->ks2.ks);
+ xctx->xts.block2 = (block128_f) AES_encrypt;
+
+ xctx->xts.key1 = &xctx->ks1;
+ } while (0);
+
+ if (iv) {
+ xctx->xts.key2 = &xctx->ks2;
+ memcpy(ctx->iv, iv, 16);
+ }
+
+ return 1;
+}
+
+static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
+ if (!xctx->xts.key1 || !xctx->xts.key2)
+ return 0;
+ if (!out || !in || len < AES_BLOCK_SIZE)
+ return 0;
+ if (xctx->stream)
+ (*xctx->stream) (in, out, len,
+ xctx->xts.key1, xctx->xts.key2, ctx->iv);
+ else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
+ ctx->encrypt))
+ return 0;
+ return 1;
+}
+
+# define aes_xts_cleanup NULL
+
+# define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT \
+ | EVP_CIPH_CUSTOM_COPY)
+
+BLOCK_CIPHER_custom(NID_aes, 128, 1, 16, xts, XTS, XTS_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 256, 1, 16, xts, XTS, XTS_FLAGS)
+
+static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+{
+ EVP_AES_CCM_CTX *cctx = c->cipher_data;
+ switch (type) {
+ case EVP_CTRL_INIT:
+ cctx->key_set = 0;
+ cctx->iv_set = 0;
+ cctx->L = 8;
+ cctx->M = 12;
+ cctx->tag_set = 0;
+ cctx->len_set = 0;
+ cctx->tls_aad_len = -1;
+ return 1;
+
+ case EVP_CTRL_AEAD_TLS1_AAD:
+ /* Save the AAD for later use */
+ if (arg != EVP_AEAD_TLS1_AAD_LEN)
+ return 0;
+ memcpy(c->buf, ptr, arg);
+ cctx->tls_aad_len = arg;
+ {
+ uint16_t len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
+ /* Correct length for explicit IV */
+ len -= EVP_CCM_TLS_EXPLICIT_IV_LEN;
+ /* If decrypting correct for tag too */
+ if (!c->encrypt)
+ len -= cctx->M;
+ c->buf[arg - 2] = len >> 8;
+ c->buf[arg - 1] = len & 0xff;
+ }
+ /* Extra padding: tag appended to record */
+ return cctx->M;
+
+ case EVP_CTRL_CCM_SET_IV_FIXED:
+ /* Sanity check length */
+ if (arg != EVP_CCM_TLS_FIXED_IV_LEN)
+ return 0;
+ /* Just copy to first part of IV */
+ memcpy(c->iv, ptr, arg);
+ return 1;
+
+ case EVP_CTRL_AEAD_SET_IVLEN:
+ arg = 15 - arg;
+ case EVP_CTRL_CCM_SET_L:
+ if (arg < 2 || arg > 8)
+ return 0;
+ cctx->L = arg;
+ return 1;
+
+ case EVP_CTRL_AEAD_SET_TAG:
+ if ((arg & 1) || arg < 4 || arg > 16)
+ return 0;
+ if (c->encrypt && ptr)
+ return 0;
+ if (ptr) {
+ cctx->tag_set = 1;
+ memcpy(c->buf, ptr, arg);
+ }
+ cctx->M = arg;
+ return 1;
+
+ case EVP_CTRL_AEAD_GET_TAG:
+ if (!c->encrypt || !cctx->tag_set)
+ return 0;
+ if (!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
+ return 0;
+ cctx->tag_set = 0;
+ cctx->iv_set = 0;
+ cctx->len_set = 0;
+ return 1;
+
+ case EVP_CTRL_COPY:
+ {
+ EVP_CIPHER_CTX *out = ptr;
+ EVP_AES_CCM_CTX *cctx_out = out->cipher_data;
+ if (cctx->ccm.key) {
+ if (cctx->ccm.key != &cctx->ks)
+ return 0;
+ cctx_out->ccm.key = &cctx_out->ks;
+ }
+ return 1;
+ }
+
+ default:
+ return -1;
+
+ }
+}
+
+static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key)
+ do {
+# ifdef HWAES_CAPABLE
+ if (HWAES_CAPABLE) {
+ HWAES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
+
+ CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
+ &cctx->ks, (block128_f) HWAES_encrypt);
+ cctx->str = NULL;
+ cctx->key_set = 1;
+ break;
+ } else
+# endif
+# ifdef VPAES_CAPABLE
+ if (VPAES_CAPABLE) {
+ vpaes_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
+ CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
+ &cctx->ks, (block128_f) vpaes_encrypt);
+ cctx->str = NULL;
+ cctx->key_set = 1;
+ break;
+ }
+# endif
+ AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks.ks);
+ CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
+ &cctx->ks, (block128_f) AES_encrypt);
+ cctx->str = NULL;
+ cctx->key_set = 1;
+ } while (0);
+ if (iv) {
+ memcpy(ctx->iv, iv, 15 - cctx->L);
+ cctx->iv_set = 1;
+ }
+ return 1;
+}
+
+static int aes_ccm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
+ CCM128_CONTEXT *ccm = &cctx->ccm;
+ /* Encrypt/decrypt must be performed in place */
+ if (out != in || len < (EVP_CCM_TLS_EXPLICIT_IV_LEN + (size_t)cctx->M))
+ return -1;
+ /* If encrypting set explicit IV from sequence number (start of AAD) */
+ if (ctx->encrypt)
+ memcpy(out, ctx->buf, EVP_CCM_TLS_EXPLICIT_IV_LEN);
+ /* Get rest of IV from explicit IV */
+ memcpy(ctx->iv + EVP_CCM_TLS_FIXED_IV_LEN, in, EVP_CCM_TLS_EXPLICIT_IV_LEN);
+ /* Correct length value */
+ len -= EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
+ if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
+ return -1;
+ /* Use saved AAD */
+ CRYPTO_ccm128_aad(ccm, ctx->buf, cctx->tls_aad_len);
+ /* Fix buffer to point to payload */
+ in += EVP_CCM_TLS_EXPLICIT_IV_LEN;
+ out += EVP_CCM_TLS_EXPLICIT_IV_LEN;
+ if (ctx->encrypt) {
+ if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
+ cctx->str) :
+ CRYPTO_ccm128_encrypt(ccm, in, out, len))
+ return -1;
+ if (!CRYPTO_ccm128_tag(ccm, out + len, cctx->M))
+ return -1;
+ return len + EVP_CCM_TLS_EXPLICIT_IV_LEN + cctx->M;
+ } else {
+ if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
+ cctx->str) :
+ !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
+ unsigned char tag[16];
+ if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
+ if (!CRYPTO_memcmp(tag, in + len, cctx->M))
+ return len;
+ }
+ }
+ OPENSSL_cleanse(out, len);
+ return -1;
+ }
+}
+
+static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
+ CCM128_CONTEXT *ccm = &cctx->ccm;
+ /* If not set up, return error */
+ if (!cctx->key_set)
+ return -1;
+
+ if (cctx->tls_aad_len >= 0)
+ return aes_ccm_tls_cipher(ctx, out, in, len);
+
+ if (!cctx->iv_set)
+ return -1;
+
+ if (!ctx->encrypt && !cctx->tag_set)
+ return -1;
+ if (!out) {
+ if (!in) {
+ if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
+ return -1;
+ cctx->len_set = 1;
+ return len;
+ }
+ /* If have AAD need message length */
+ if (!cctx->len_set && len)
+ return -1;
+ CRYPTO_ccm128_aad(ccm, in, len);
+ return len;
+ }
+ /* EVP_*Final() doesn't return any data */
+ if (!in)
+ return 0;
+ /* If not set length yet do it */
+ if (!cctx->len_set) {
+ if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
+ return -1;
+ cctx->len_set = 1;
+ }
+ if (ctx->encrypt) {
+ if (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
+ cctx->str) :
+ CRYPTO_ccm128_encrypt(ccm, in, out, len))
+ return -1;
+ cctx->tag_set = 1;
+ return len;
+ } else {
+ int rv = -1;
+ if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
+ cctx->str) :
+ !CRYPTO_ccm128_decrypt(ccm, in, out, len)) {
+ unsigned char tag[16];
+ if (CRYPTO_ccm128_tag(ccm, tag, cctx->M)) {
+ if (!CRYPTO_memcmp(tag, ctx->buf, cctx->M))
+ rv = len;
+ }
+ }
+ if (rv == -1)
+ OPENSSL_cleanse(out, len);
+ cctx->iv_set = 0;
+ cctx->tag_set = 0;
+ cctx->len_set = 0;
+ return rv;
+ }
+
+}
+
+# define aes_ccm_cleanup NULL
+
+BLOCK_CIPHER_custom(NID_aes, 128, 1, 12, ccm, CCM,
+ EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 192, 1, 12, ccm, CCM,
+ EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 256, 1, 12, ccm, CCM,
+ EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
+
+typedef struct {
+ union {
+ double align;
+ AES_KEY ks;
+ } ks;
+ /* Indicates if IV has been set */
+ unsigned char *iv;
+} EVP_AES_WRAP_CTX;
+
+static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ if (ctx->encrypt)
+ AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
+ else
+ AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
+ if (!iv)
+ wctx->iv = NULL;
+ }
+ if (iv) {
+ memcpy(ctx->iv, iv, EVP_CIPHER_CTX_iv_length(ctx));
+ wctx->iv = ctx->iv;
+ }
+ return 1;
+}
+
+static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t inlen)
+{
+ EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
+ size_t rv;
+ /* AES wrap with padding has IV length of 4, without padding 8 */
+ int pad = EVP_CIPHER_CTX_iv_length(ctx) == 4;
+ /* No final operation so always return zero length */
+ if (!in)
+ return 0;
+ /* Input length must always be non-zero */
+ if (!inlen)
+ return -1;
+ /* If decrypting need at least 16 bytes and multiple of 8 */
+ if (!ctx->encrypt && (inlen < 16 || inlen & 0x7))
+ return -1;
+ /* If not padding input must be multiple of 8 */
+ if (!pad && inlen & 0x7)
+ return -1;
+ if (!out) {
+ if (ctx->encrypt) {
+ /* If padding round up to multiple of 8 */
+ if (pad)
+ inlen = (inlen + 7) / 8 * 8;
+ /* 8 byte prefix */
+ return inlen + 8;
+ } else {
+ /*
+ * If not padding output will be exactly 8 bytes smaller than
+ * input. If padding it will be at least 8 bytes smaller but we
+ * don't know how much.
+ */
+ return inlen - 8;
+ }
+ }
+ if (pad) {
+ if (ctx->encrypt)
+ rv = CRYPTO_128_wrap_pad(&wctx->ks.ks, wctx->iv,
+ out, in, inlen,
+ (block128_f) AES_encrypt);
+ else
+ rv = CRYPTO_128_unwrap_pad(&wctx->ks.ks, wctx->iv,
+ out, in, inlen,
+ (block128_f) AES_decrypt);
+ } else {
+ if (ctx->encrypt)
+ rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv,
+ out, in, inlen, (block128_f) AES_encrypt);
+ else
+ rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv,
+ out, in, inlen, (block128_f) AES_decrypt);
+ }
+ return rv ? (int)rv : -1;
+}
+
+# define WRAP_FLAGS (EVP_CIPH_WRAP_MODE \
+ | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
+
+static const EVP_CIPHER aes_128_wrap = {
+ NID_id_aes128_wrap,
+ 8, 16, 8, WRAP_FLAGS,
+ aes_wrap_init_key, aes_wrap_cipher,
+ NULL,
+ sizeof(EVP_AES_WRAP_CTX),
+ NULL, NULL, NULL, NULL
+};
+
+const EVP_CIPHER *EVP_aes_128_wrap(void)
+{
+ return &aes_128_wrap;
+}
+
+static const EVP_CIPHER aes_192_wrap = {
+ NID_id_aes192_wrap,
+ 8, 24, 8, WRAP_FLAGS,
+ aes_wrap_init_key, aes_wrap_cipher,
+ NULL,
+ sizeof(EVP_AES_WRAP_CTX),
+ NULL, NULL, NULL, NULL
+};
+
+const EVP_CIPHER *EVP_aes_192_wrap(void)
+{
+ return &aes_192_wrap;
+}
+
+static const EVP_CIPHER aes_256_wrap = {
+ NID_id_aes256_wrap,
+ 8, 32, 8, WRAP_FLAGS,
+ aes_wrap_init_key, aes_wrap_cipher,
+ NULL,
+ sizeof(EVP_AES_WRAP_CTX),
+ NULL, NULL, NULL, NULL
+};
+
+const EVP_CIPHER *EVP_aes_256_wrap(void)
+{
+ return &aes_256_wrap;
+}
+
+static const EVP_CIPHER aes_128_wrap_pad = {
+ NID_id_aes128_wrap_pad,
+ 8, 16, 4, WRAP_FLAGS,
+ aes_wrap_init_key, aes_wrap_cipher,
+ NULL,
+ sizeof(EVP_AES_WRAP_CTX),
+ NULL, NULL, NULL, NULL
+};
+
+const EVP_CIPHER *EVP_aes_128_wrap_pad(void)
+{
+ return &aes_128_wrap_pad;
+}
+
+static const EVP_CIPHER aes_192_wrap_pad = {
+ NID_id_aes192_wrap_pad,
+ 8, 24, 4, WRAP_FLAGS,
+ aes_wrap_init_key, aes_wrap_cipher,
+ NULL,
+ sizeof(EVP_AES_WRAP_CTX),
+ NULL, NULL, NULL, NULL
+};
+
+const EVP_CIPHER *EVP_aes_192_wrap_pad(void)
+{
+ return &aes_192_wrap_pad;
+}
+
+static const EVP_CIPHER aes_256_wrap_pad = {
+ NID_id_aes256_wrap_pad,
+ 8, 32, 4, WRAP_FLAGS,
+ aes_wrap_init_key, aes_wrap_cipher,
+ NULL,
+ sizeof(EVP_AES_WRAP_CTX),
+ NULL, NULL, NULL, NULL
+};
+
+const EVP_CIPHER *EVP_aes_256_wrap_pad(void)
+{
+ return &aes_256_wrap_pad;
+}
+
+# ifndef OPENSSL_NO_OCB
+static int aes_ocb_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+{
+ EVP_AES_OCB_CTX *octx = c->cipher_data;
+ EVP_CIPHER_CTX *newc;
+ EVP_AES_OCB_CTX *new_octx;
+
+ switch (type) {
+ case EVP_CTRL_INIT:
+ octx->key_set = 0;
+ octx->iv_set = 0;
+ octx->ivlen = c->cipher->iv_len;
+ octx->iv = c->iv;
+ octx->taglen = 16;
+ octx->data_buf_len = 0;
+ octx->aad_buf_len = 0;
+ return 1;
+
+ case EVP_CTRL_AEAD_SET_IVLEN:
+ /* IV len must be 1 to 15 */
+ if (arg <= 0 || arg > 15)
+ return 0;
+
+ octx->ivlen = arg;
+ return 1;
+
+ case EVP_CTRL_AEAD_SET_TAG:
+ if (!ptr) {
+ /* Tag len must be 0 to 16 */
+ if (arg < 0 || arg > 16)
+ return 0;
+
+ octx->taglen = arg;
+ return 1;
+ }
+ if (arg != octx->taglen || c->encrypt)
+ return 0;
+ memcpy(octx->tag, ptr, arg);
+ return 1;
+
+ case EVP_CTRL_AEAD_GET_TAG:
+ if (arg != octx->taglen || !c->encrypt)
+ return 0;
+
+ memcpy(ptr, octx->tag, arg);
+ return 1;
+
+ case EVP_CTRL_COPY:
+ newc = (EVP_CIPHER_CTX *)ptr;
+ new_octx = newc->cipher_data;
+ return CRYPTO_ocb128_copy_ctx(&new_octx->ocb, &octx->ocb,
+ &new_octx->ksenc.ks,
+ &new_octx->ksdec.ks);
+
+ default:
+ return -1;
+
+ }
+}
+
+# ifdef HWAES_CAPABLE
+# ifdef HWAES_ocb_encrypt
+void HWAES_ocb_encrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const void *key,
+ size_t start_block_num,
+ unsigned char offset_i[16],
+ const unsigned char L_[][16],
+ unsigned char checksum[16]);
+# else
+# define HWAES_ocb_encrypt NULL
+# endif
+# ifdef HWAES_ocb_decrypt
+void HWAES_ocb_decrypt(const unsigned char *in, unsigned char *out,
+ size_t blocks, const void *key,
+ size_t start_block_num,
+ unsigned char offset_i[16],
+ const unsigned char L_[][16],
+ unsigned char checksum[16]);
+# else
+# define HWAES_ocb_decrypt NULL
+# endif
+# endif
+
+static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_OCB_CTX *octx = ctx->cipher_data;
+ if (!iv && !key)
+ return 1;
+ if (key) {
+ do {
+ /*
+ * We set both the encrypt and decrypt key here because decrypt
+ * needs both. We could possibly optimise to remove setting the
+ * decrypt for an encryption operation.
+ */
+# ifdef HWAES_CAPABLE
+ if (HWAES_CAPABLE) {
+ HWAES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
+ HWAES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
+ if (!CRYPTO_ocb128_init(&octx->ocb,
+ &octx->ksenc.ks, &octx->ksdec.ks,
+ (block128_f) HWAES_encrypt,
+ (block128_f) HWAES_decrypt,
+ enc ? HWAES_ocb_encrypt
+ : HWAES_ocb_decrypt))
+ return 0;
+ break;
+ }
+# endif
+# ifdef VPAES_CAPABLE
+ if (VPAES_CAPABLE) {
+ vpaes_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
+ vpaes_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
+ if (!CRYPTO_ocb128_init(&octx->ocb,
+ &octx->ksenc.ks, &octx->ksdec.ks,
+ (block128_f) vpaes_encrypt,
+ (block128_f) vpaes_decrypt,
+ NULL))
+ return 0;
+ break;
+ }
+# endif
+ AES_set_encrypt_key(key, ctx->key_len * 8, &octx->ksenc.ks);
+ AES_set_decrypt_key(key, ctx->key_len * 8, &octx->ksdec.ks);
+ if (!CRYPTO_ocb128_init(&octx->ocb,
+ &octx->ksenc.ks, &octx->ksdec.ks,
+ (block128_f) AES_encrypt,
+ (block128_f) AES_decrypt,
+ NULL))
+ return 0;
+ }
+ while (0);
+
+ /*
+ * If we have an iv we can set it directly, otherwise use saved IV.
+ */
+ if (iv == NULL && octx->iv_set)
+ iv = octx->iv;
+ if (iv) {
+ if (CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen)
+ != 1)
+ return 0;
+ octx->iv_set = 1;
+ }
+ octx->key_set = 1;
+ } else {
+ /* If key set use IV, otherwise copy */
+ if (octx->key_set)
+ CRYPTO_ocb128_setiv(&octx->ocb, iv, octx->ivlen, octx->taglen);
+ else
+ memcpy(octx->iv, iv, octx->ivlen);
+ octx->iv_set = 1;
+ }
+ return 1;
+}
+
+static int aes_ocb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ unsigned char *buf;
+ int *buf_len;
+ int written_len = 0;
+ size_t trailing_len;
+ EVP_AES_OCB_CTX *octx = ctx->cipher_data;
+
+ /* If IV or Key not set then return error */
+ if (!octx->iv_set)
+ return -1;
+
+ if (!octx->key_set)
+ return -1;
+
+ if (in) {
+ /*
+ * Need to ensure we are only passing full blocks to low level OCB
+ * routines. We do it here rather than in EVP_EncryptUpdate/
+ * EVP_DecryptUpdate because we need to pass full blocks of AAD too
+ * and those routines don't support that
+ */
+
+ /* Are we dealing with AAD or normal data here? */
+ if (out == NULL) {
+ buf = octx->aad_buf;
+ buf_len = &(octx->aad_buf_len);
+ } else {
+ buf = octx->data_buf;
+ buf_len = &(octx->data_buf_len);
+ }
+
+ /*
+ * If we've got a partially filled buffer from a previous call then
+ * use that data first
+ */
+ if (*buf_len) {
+ unsigned int remaining;
+
+ remaining = 16 - (*buf_len);
+ if (remaining > len) {
+ memcpy(buf + (*buf_len), in, len);
+ *(buf_len) += len;
+ return 0;
+ }
+ memcpy(buf + (*buf_len), in, remaining);
+
+ /*
+ * If we get here we've filled the buffer, so process it
+ */
+ len -= remaining;
+ in += remaining;
+ if (out == NULL) {
+ if (!CRYPTO_ocb128_aad(&octx->ocb, buf, 16))
+ return -1;
+ } else if (ctx->encrypt) {
+ if (!CRYPTO_ocb128_encrypt(&octx->ocb, buf, out, 16))
+ return -1;
+ } else {
+ if (!CRYPTO_ocb128_decrypt(&octx->ocb, buf, out, 16))
+ return -1;
+ }
+ written_len = 16;
+ *buf_len = 0;
+ }
+
+ /* Do we have a partial block to handle at the end? */
+ trailing_len = len % 16;
+
+ /*
+ * If we've got some full blocks to handle, then process these first
+ */
+ if (len != trailing_len) {
+ if (out == NULL) {
+ if (!CRYPTO_ocb128_aad(&octx->ocb, in, len - trailing_len))
+ return -1;
+ } else if (ctx->encrypt) {
+ if (!CRYPTO_ocb128_encrypt
+ (&octx->ocb, in, out, len - trailing_len))
+ return -1;
+ } else {
+ if (!CRYPTO_ocb128_decrypt
+ (&octx->ocb, in, out, len - trailing_len))
+ return -1;
+ }
+ written_len += len - trailing_len;
+ in += len - trailing_len;
+ }
+
+ /* Handle any trailing partial block */
+ if (trailing_len) {
+ memcpy(buf, in, trailing_len);
+ *buf_len = trailing_len;
+ }
+
+ return written_len;
+ } else {
+ /*
+ * First of all empty the buffer of any partial block that we might
+ * have been provided - both for data and AAD
+ */
+ if (octx->data_buf_len) {
+ if (ctx->encrypt) {
+ if (!CRYPTO_ocb128_encrypt(&octx->ocb, octx->data_buf, out,
+ octx->data_buf_len))
+ return -1;
+ } else {
+ if (!CRYPTO_ocb128_decrypt(&octx->ocb, octx->data_buf, out,
+ octx->data_buf_len))
+ return -1;
+ }
+ written_len = octx->data_buf_len;
+ octx->data_buf_len = 0;
+ }
+ if (octx->aad_buf_len) {
+ if (!CRYPTO_ocb128_aad
+ (&octx->ocb, octx->aad_buf, octx->aad_buf_len))
+ return -1;
+ octx->aad_buf_len = 0;
+ }
+ /* If decrypting then verify */
+ if (!ctx->encrypt) {
+ if (octx->taglen < 0)
+ return -1;
+ if (CRYPTO_ocb128_finish(&octx->ocb,
+ octx->tag, octx->taglen) != 0)
+ return -1;
+ octx->iv_set = 0;
+ return written_len;
+ }
+ /* If encrypting then just get the tag */
+ if (CRYPTO_ocb128_tag(&octx->ocb, octx->tag, 16) != 1)
+ return -1;
+ /* Don't reuse the IV */
+ octx->iv_set = 0;
+ return written_len;
+ }
+}
+
+static int aes_ocb_cleanup(EVP_CIPHER_CTX *c)
+{
+ EVP_AES_OCB_CTX *octx = c->cipher_data;
+ CRYPTO_ocb128_cleanup(&octx->ocb);
+ return 1;
+}
+BLOCK_CIPHER_custom(NID_aes, 128, 16, 12, ocb, OCB, CUSTOM_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 192, 16, 12, ocb, OCB, CUSTOM_FLAGS)
+ BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB, CUSTOM_FLAGS)
+# endif /* OPENSSL_NO_OCB */
#endif
projects / openssl.git / blobdiff