/*
- * Copyright 2001-2018 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2001-2019 The OpenSSL Project Authors. All Rights Reserved.
*
- * Licensed under the OpenSSL license (the "License"). You may not use
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
+#include <string.h>
+#include <assert.h>
#include <openssl/opensslconf.h>
#include <openssl/crypto.h>
#include <openssl/evp.h>
#include <openssl/err.h>
-#include <string.h>
-#include <assert.h>
#include <openssl/aes.h>
-#include "internal/evp_int.h"
-#include "modes_lcl.h"
#include <openssl/rand.h>
+#include <openssl/cmac.h>
+#include "internal/evp_int.h"
+#include "internal/cryptlib.h"
+#include "internal/modes_int.h"
+#include "internal/siv_int.h"
+#include "internal/aes_platform.h"
#include "evp_locl.h"
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ks;
block128_f block;
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ks; /* AES key schedule to use */
int key_set; /* Set if key initialised */
int ivlen; /* IV length */
int taglen;
int iv_gen; /* It is OK to generate IVs */
+ int iv_gen_rand; /* No IV was specified, so generate a rand IV */
int tls_aad_len; /* TLS AAD length */
+ uint64_t tls_enc_records; /* Number of TLS records encrypted */
ctr128_f ctr;
} EVP_AES_GCM_CTX;
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ks1, ks2; /* AES key schedules to use */
XTS128_CONTEXT xts;
const unsigned char iv[16]);
} EVP_AES_XTS_CTX;
+#ifdef FIPS_MODE
+static const int allow_insecure_decrypt = 0;
+#else
+static const int allow_insecure_decrypt = 1;
+#endif
+
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ks; /* AES key schedule to use */
int key_set; /* Set if key initialised */
#ifndef OPENSSL_NO_OCB
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ksenc; /* AES key schedule to use for encryption */
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ksdec; /* AES key schedule to use for decryption */
int key_set; /* Set if key initialised */
#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 unsigned char *inp, unsigned char *out, size_t len,
- const AES_KEY *key1, const AES_KEY *key2,
- const unsigned char iv[16]);
-void AES_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
-
/* increment counter (64-bit int) by 1 */
static void ctr64_inc(unsigned char *counter)
{
} while (n);
}
-#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
-# define HWAES_xts_encrypt aes_p8_xts_encrypt
-# define HWAES_xts_decrypt aes_p8_xts_decrypt
-#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) )
-
-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(AESNI_CAPABLE)
# 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 */
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
+
if (!iv && !key)
return 1;
if (key) {
+ /* The key is two half length keys in reality */
+ const int bytes = EVP_CIPHER_CTX_key_length(ctx) / 2;
+ const int bits = bytes * 8;
+
+ /*
+ * Verify that the two keys are different.
+ *
+ * This addresses Rogaway's vulnerability.
+ * See comment in aes_xts_init_key() below.
+ */
+ if ((!allow_insecure_decrypt || enc)
+ && CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
+ EVPerr(EVP_F_AESNI_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
+ return 0;
+ }
+
/* key_len is two AES keys */
if (enc) {
- aesni_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ aesni_set_encrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) aesni_encrypt;
xctx->stream = aesni_xts_encrypt;
} else {
- aesni_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ aesni_set_decrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) aesni_decrypt;
xctx->stream = aesni_xts_decrypt;
}
- aesni_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks2.ks);
+ aesni_set_encrypt_key(key + bytes, bits, &xctx->ks2.ks);
xctx->xts.block2 = (block128_f) aesni_encrypt;
xctx->xts.key1 = &xctx->ks1;
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)
{
# 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, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
+ ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aesni_##mode##_init_key, \
aesni_##mode##_cipher, \
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, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
+ ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aes_##mode##_init_key, \
aes_##mode##_cipher, \
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[];
-
-/*
- * Initial Fujitsu SPARC64 X support
- */
-# define HWAES_CAPABLE (OPENSSL_sparcv9cap_P[0] & SPARCV9_FJAESX)
-# define HWAES_set_encrypt_key aes_fx_set_encrypt_key
-# define HWAES_set_decrypt_key aes_fx_set_decrypt_key
-# define HWAES_encrypt aes_fx_encrypt
-# define HWAES_decrypt aes_fx_decrypt
-# define HWAES_cbc_encrypt aes_fx_cbc_encrypt
-# define HWAES_ctr32_encrypt_blocks aes_fx_ctr32_encrypt_blocks
-
-# 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 specific 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);
+#elif defined(SPARC_AES_CAPABLE)
static int aes_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
+
if (!iv && !key)
return 1;
if (key) {
- int bits = EVP_CIPHER_CTX_key_length(ctx) * 4;
+ /* The key is two half length keys in reality */
+ const int bytes = EVP_CIPHER_CTX_key_length(ctx) / 2;
+ const int bits = bytes * 8;
+
+ /*
+ * Verify that the two keys are different.
+ *
+ * This addresses Rogaway's vulnerability.
+ * See comment in aes_xts_init_key() below.
+ */
+ if ((!allow_insecure_decrypt || enc)
+ && CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
+ EVPerr(EVP_F_AES_T4_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
+ return 0;
+ }
+
xctx->stream = NULL;
/* key_len is two AES keys */
if (enc) {
return 0;
}
} else {
- aes_t4_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ aes_t4_set_decrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) aes_t4_decrypt;
switch (bits) {
case 128:
}
}
- aes_t4_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks2.ks);
+ aes_t4_set_encrypt_key(key + bytes, bits, &xctx->ks2.ks);
xctx->xts.block2 = (block128_f) aes_t4_encrypt;
xctx->xts.key1 = &xctx->ks1;
const unsigned char *in, size_t len);
# endif /* OPENSSL_NO_OCB */
+# ifndef OPENSSL_NO_SIV
+# define aes_t4_siv_init_key aes_siv_init_key
+# define aes_t4_siv_cipher aes_siv_cipher
+# endif /* OPENSSL_NO_SIV */
+
# 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, \
# 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, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
+ ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aes_t4_##mode##_init_key, \
aes_t4_##mode##_cipher, \
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, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
+ ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aes_##mode##_init_key, \
aes_##mode##_cipher, \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return SPARC_AES_CAPABLE?&aes_t4_##keylen##_##mode:&aes_##keylen##_##mode; }
-#elif defined(OPENSSL_CPUID_OBJ) && defined(__s390__)
-/*
- * IBM S390X support
- */
-# include "s390x_arch.h"
-
+#elif defined(S390X_aes_128_CAPABLE)
+/* IBM S390X support */
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
/*-
* KM-AES parameter block - begin
* (see z/Architecture Principles of Operation >= SA22-7832-06)
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
/*-
* KMO-AES parameter block - begin
* (see z/Architecture Principles of Operation >= SA22-7832-08)
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
/*-
* KMF-AES parameter block - begin
* (see z/Architecture Principles of Operation >= SA22-7832-08)
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
/*-
* KMA-GCM-AES parameter block - begin
* (see z/Architecture Principles of Operation >= SA22-7832-11)
int kreslen;
int tls_aad_len;
+ uint64_t tls_enc_records; /* Number of TLS records encrypted */
} S390X_AES_GCM_CTX;
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
/*-
* Padding is chosen so that ccm.kmac_param.k overlaps with key.k and
* ccm.fc with key.k.rounds. Remember that on s390x, an AES_KEY's
} aes;
} S390X_AES_CCM_CTX;
-/* Convert key size to function code: [16,24,32] -> [18,19,20]. */
-# define S390X_AES_FC(keylen) (S390X_AES_128 + ((((keylen) << 3) - 128) >> 6))
-
-/* Most modes of operation need km for partial block processing. */
-# define S390X_aes_128_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
- S390X_CAPBIT(S390X_AES_128))
-# define S390X_aes_192_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
- S390X_CAPBIT(S390X_AES_192))
-# define S390X_aes_256_CAPABLE (OPENSSL_s390xcap_P.km[0] & \
- S390X_CAPBIT(S390X_AES_256))
-
# define s390x_aes_init_key aes_init_key
static int s390x_aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc);
-# define S390X_aes_128_cbc_CAPABLE 1 /* checked by callee */
-# define S390X_aes_192_cbc_CAPABLE 1
-# define S390X_aes_256_cbc_CAPABLE 1
-# define S390X_AES_CBC_CTX EVP_AES_KEY
+# define S390X_AES_CBC_CTX EVP_AES_KEY
# define s390x_aes_cbc_init_key aes_init_key
static int s390x_aes_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len);
-# define S390X_aes_128_ecb_CAPABLE S390X_aes_128_CAPABLE
-# define S390X_aes_192_ecb_CAPABLE S390X_aes_192_CAPABLE
-# define S390X_aes_256_ecb_CAPABLE S390X_aes_256_CAPABLE
-
static int s390x_aes_ecb_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *iv, int enc)
return 1;
}
-# define S390X_aes_128_ofb_CAPABLE (S390X_aes_128_CAPABLE && \
- (OPENSSL_s390xcap_P.kmo[0] & \
- S390X_CAPBIT(S390X_AES_128)))
-# define S390X_aes_192_ofb_CAPABLE (S390X_aes_192_CAPABLE && \
- (OPENSSL_s390xcap_P.kmo[0] & \
- S390X_CAPBIT(S390X_AES_192)))
-# define S390X_aes_256_ofb_CAPABLE (S390X_aes_256_CAPABLE && \
- (OPENSSL_s390xcap_P.kmo[0] & \
- S390X_CAPBIT(S390X_AES_256)))
-
static int s390x_aes_ofb_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *ivec, int enc)
return 1;
}
-# define S390X_aes_128_cfb_CAPABLE (S390X_aes_128_CAPABLE && \
- (OPENSSL_s390xcap_P.kmf[0] & \
- S390X_CAPBIT(S390X_AES_128)))
-# define S390X_aes_192_cfb_CAPABLE (S390X_aes_192_CAPABLE && \
- (OPENSSL_s390xcap_P.kmf[0] & \
- S390X_CAPBIT(S390X_AES_192)))
-# define S390X_aes_256_cfb_CAPABLE (S390X_aes_256_CAPABLE && \
- (OPENSSL_s390xcap_P.kmf[0] & \
- S390X_CAPBIT(S390X_AES_256)))
-
static int s390x_aes_cfb_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *ivec, int enc)
return 1;
}
-# define S390X_aes_128_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
- S390X_CAPBIT(S390X_AES_128))
-# define S390X_aes_192_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
- S390X_CAPBIT(S390X_AES_192))
-# define S390X_aes_256_cfb8_CAPABLE (OPENSSL_s390xcap_P.kmf[0] & \
- S390X_CAPBIT(S390X_AES_256))
-
static int s390x_aes_cfb8_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *key,
const unsigned char *ivec, int enc)
return 1;
}
-# define S390X_aes_128_cfb1_CAPABLE 0
-# define S390X_aes_192_cfb1_CAPABLE 0
-# define S390X_aes_256_cfb1_CAPABLE 0
-
# define s390x_aes_cfb1_init_key aes_init_key
# define s390x_aes_cfb1_cipher aes_cfb1_cipher
static int s390x_aes_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len);
-# define S390X_aes_128_ctr_CAPABLE 1 /* checked by callee */
-# define S390X_aes_192_ctr_CAPABLE 1
-# define S390X_aes_256_ctr_CAPABLE 1
-# define S390X_AES_CTR_CTX EVP_AES_KEY
+# define S390X_AES_CTR_CTX EVP_AES_KEY
# define s390x_aes_ctr_init_key aes_init_key
static int s390x_aes_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len);
-# define S390X_aes_128_gcm_CAPABLE (S390X_aes_128_CAPABLE && \
- (OPENSSL_s390xcap_P.kma[0] & \
- S390X_CAPBIT(S390X_AES_128)))
-# define S390X_aes_192_gcm_CAPABLE (S390X_aes_192_CAPABLE && \
- (OPENSSL_s390xcap_P.kma[0] & \
- S390X_CAPBIT(S390X_AES_192)))
-# define S390X_aes_256_gcm_CAPABLE (S390X_aes_256_CAPABLE && \
- (OPENSSL_s390xcap_P.kma[0] & \
- S390X_CAPBIT(S390X_AES_256)))
-
-/* iv + padding length for iv lenghts != 12 */
-# define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
+/* iv + padding length for iv lengths != 12 */
+# define S390X_gcm_ivpadlen(i) ((((i) + 15) >> 4 << 4) + 16)
/*-
* Process additional authenticated data. Returns 0 on success. Code is
buf = EVP_CIPHER_CTX_buf_noconst(c);
memcpy(buf, ptr, arg);
gctx->tls_aad_len = arg;
+ gctx->tls_enc_records = 0;
len = buf[arg - 2] << 8 | buf[arg - 1];
/* Correct length for explicit iv. */
if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
return -1;
+ /*
+ * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
+ * Requirements from SP 800-38D". The requirements is for one party to the
+ * communication to fail after 2^64 - 1 keys. We do this on the encrypting
+ * side only.
+ */
+ if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
+ EVPerr(EVP_F_S390X_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
+ goto err;
+ }
+
if (EVP_CIPHER_CTX_ctrl(ctx, enc ? EVP_CTRL_GCM_IV_GEN
: EVP_CTRL_GCM_SET_IV_INV,
EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
return 1;
}
-# define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
-# define S390X_aes_128_xts_CAPABLE 1 /* checked by callee */
-# define S390X_aes_256_xts_CAPABLE 1
+# define S390X_AES_XTS_CTX EVP_AES_XTS_CTX
# define s390x_aes_xts_init_key aes_xts_init_key
static int s390x_aes_xts_init_key(EVP_CIPHER_CTX *ctx,
static int s390x_aes_xts_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
# define s390x_aes_xts_cleanup aes_xts_cleanup
-# define S390X_aes_128_ccm_CAPABLE (S390X_aes_128_CAPABLE && \
- (OPENSSL_s390xcap_P.kmac[0] & \
- S390X_CAPBIT(S390X_AES_128)))
-# define S390X_aes_192_ccm_CAPABLE (S390X_aes_192_CAPABLE && \
- (OPENSSL_s390xcap_P.kmac[0] & \
- S390X_CAPBIT(S390X_AES_192)))
-# define S390X_aes_256_ccm_CAPABLE (S390X_aes_256_CAPABLE && \
- (OPENSSL_s390xcap_P.kmac[0] & \
- S390X_CAPBIT(S390X_AES_256)))
-
-# define S390X_CCM_AAD_FLAG 0x40
-
/*-
* Set nonce and length fields. Code is big-endian.
*/
ctx->aes.ccm.nonce.b[15] = 1;
if (n != len)
- return -1; /* length mismatch */
+ return -1; /* length mismatch */
if (enc) {
/* Two operations per block plus one for tag encryption */
ctx->aes.ccm.blocks += (((len + 15) >> 4) << 1) + 1;
if (ctx->aes.ccm.blocks > (1ULL << 61))
- return -2; /* too much data */
+ return -2; /* too much data */
}
num = 0;
ctx->aes.ccm.kmac_param.icv.g[0] ^= ctx->aes.ccm.buf.g[0];
ctx->aes.ccm.kmac_param.icv.g[1] ^= ctx->aes.ccm.buf.g[1];
- ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
+ ctx->aes.ccm.nonce.b[0] = flags; /* restore flags field */
return 0;
}
if (!cctx->aes.ccm.iv_set)
return -1;
- if (!enc && !cctx->aes.ccm.tag_set)
- return -1;
-
if (out == NULL) {
/* Update(): Pass message length. */
if (in == NULL) {
return len;
}
+ /* The tag must be set before actually decrypting data */
+ if (!enc && !cctx->aes.ccm.tag_set)
+ return -1;
+
/* Update(): Process message. */
if (!cctx->aes.ccm.len_set) {
/*-
- * In case message length was not previously set explicitely via
+ * In case message length was not previously set explicitly via
* Update(), set it now.
*/
ivec = EVP_CIPHER_CTX_iv_noconst(ctx);
# define s390x_aes_ccm_cleanup aes_ccm_cleanup
# ifndef OPENSSL_NO_OCB
-# define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
-# define S390X_aes_128_ocb_CAPABLE 0
-# define S390X_aes_192_ocb_CAPABLE 0
-# define S390X_aes_256_ocb_CAPABLE 0
+# define S390X_AES_OCB_CTX EVP_AES_OCB_CTX
# define s390x_aes_ocb_init_key aes_ocb_init_key
static int s390x_aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
static int s390x_aes_ocb_ctrl(EVP_CIPHER_CTX *, int type, int arg, void *ptr);
# endif
-# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
- MODE,flags) \
-static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
- nid##_##keylen##_##nmode,blocksize, \
- keylen / 8, \
- ivlen, \
- flags | EVP_CIPH_##MODE##_MODE, \
- s390x_aes_##mode##_init_key, \
- s390x_aes_##mode##_cipher, \
- NULL, \
- sizeof(S390X_AES_##MODE##_CTX), \
- 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 S390X_aes_##keylen##_##mode##_CAPABLE ? \
- &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
+# ifndef OPENSSL_NO_SIV
+# define S390X_AES_SIV_CTX EVP_AES_SIV_CTX
+
+# define s390x_aes_siv_init_key aes_siv_init_key
+# define s390x_aes_siv_cipher aes_siv_cipher
+# define s390x_aes_siv_cleanup aes_siv_cleanup
+# define s390x_aes_siv_ctrl aes_siv_ctrl
+# endif
+
+# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode, \
+ MODE,flags) \
+static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
+ nid##_##keylen##_##nmode,blocksize, \
+ keylen / 8, \
+ ivlen, \
+ flags | EVP_CIPH_##MODE##_MODE, \
+ s390x_aes_##mode##_init_key, \
+ s390x_aes_##mode##_cipher, \
+ NULL, \
+ sizeof(S390X_AES_##MODE##_CTX), \
+ 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 S390X_aes_##keylen##_##mode##_CAPABLE ? \
+ &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
}
# define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags)\
-static const EVP_CIPHER s390x_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, \
- s390x_aes_##mode##_init_key, \
- s390x_aes_##mode##_cipher, \
- s390x_aes_##mode##_cleanup, \
- sizeof(S390X_AES_##MODE##_CTX), \
- NULL, \
- NULL, \
- s390x_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 S390X_aes_##keylen##_##mode##_CAPABLE ? \
- &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
+static const EVP_CIPHER s390x_aes_##keylen##_##mode = { \
+ nid##_##keylen##_##mode, \
+ blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE ? 2 : 1) * keylen / 8, \
+ ivlen, \
+ flags | EVP_CIPH_##MODE##_MODE, \
+ s390x_aes_##mode##_init_key, \
+ s390x_aes_##mode##_cipher, \
+ s390x_aes_##mode##_cleanup, \
+ sizeof(S390X_AES_##MODE##_CTX), \
+ NULL, \
+ NULL, \
+ s390x_aes_##mode##_ctrl, \
+ NULL \
+}; \
+static const EVP_CIPHER aes_##keylen##_##mode = { \
+ nid##_##keylen##_##mode,blocksize, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_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 S390X_aes_##keylen##_##mode##_CAPABLE ? \
+ &s390x_aes_##keylen##_##mode : &aes_##keylen##_##mode; \
}
#else
# 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, \
+ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE||EVP_CIPH_##MODE##_MODE==EVP_CIPH_SIV_MODE?2:1)*keylen/8, \
+ ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aes_##mode##_init_key, \
aes_##mode##_cipher, \
#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]);
-void HWAES_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 HWAES_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
-
#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) \
memcpy(ptr, c->buf, arg);
return 1;
+ case EVP_CTRL_GET_IV:
+ if (gctx->iv_gen != 1 && gctx->iv_gen_rand != 1)
+ return 0;
+ if (gctx->ivlen != arg)
+ return 0;
+ memcpy(ptr, gctx->iv, arg);
+ return 1;
+
case EVP_CTRL_GCM_SET_IV_FIXED:
/* Special case: -1 length restores whole IV */
if (arg == -1) {
return 0;
memcpy(c->buf, ptr, arg);
gctx->tls_aad_len = arg;
+ gctx->tls_enc_records = 0;
{
unsigned int len = c->buf[arg - 2] << 8 | c->buf[arg - 1];
/* Correct length for explicit IV */
if (out != in
|| len < (EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN))
return -1;
+
+ /*
+ * Check for too many keys as per FIPS 140-2 IG A.5 "Key/IV Pair Uniqueness
+ * Requirements from SP 800-38D". The requirements is for one party to the
+ * communication to fail after 2^64 - 1 keys. We do this on the encrypting
+ * side only.
+ */
+ if (ctx->encrypt && ++gctx->tls_enc_records == 0) {
+ EVPerr(EVP_F_AES_GCM_TLS_CIPHER, EVP_R_TOO_MANY_RECORDS);
+ goto err;
+ }
+
/*
* Set IV from start of buffer or generate IV and write to start of
* buffer.
return rv;
}
+#ifdef FIPS_MODE
+/*
+ * See SP800-38D (GCM) Section 8 "Uniqueness requirement on IVS and keys"
+ *
+ * See also 8.2.2 RBG-based construction.
+ * Random construction consists of a free field (which can be NULL) and a
+ * random field which will use a DRBG that can return at least 96 bits of
+ * entropy strength. (The DRBG must be seeded by the FIPS module).
+ */
+static int aes_gcm_iv_generate(EVP_AES_GCM_CTX *gctx, int offset)
+{
+ int sz = gctx->ivlen - offset;
+
+ /* Must be at least 96 bits */
+ if (sz <= 0 || gctx->ivlen < 12)
+ return 0;
+
+ /* Use DRBG to generate random iv */
+ if (RAND_bytes(gctx->iv + offset, sz) <= 0)
+ return 0;
+ return 1;
+}
+#endif /* FIPS_MODE */
+
static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
{
EVP_AES_GCM_CTX *gctx = EVP_C_DATA(EVP_AES_GCM_CTX,ctx);
+
/* 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);
+#ifdef FIPS_MODE
+ /*
+ * FIPS requires generation of AES-GCM IV's inside the FIPS module.
+ * The IV can still be set externally (the security policy will state that
+ * this is not FIPS compliant). There are some applications
+ * where setting the IV externally is the only option available.
+ */
+ if (!gctx->iv_set) {
+ if (!ctx->encrypt || !aes_gcm_iv_generate(gctx, 0))
+ return -1;
+ CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
+ gctx->iv_set = 1;
+ gctx->iv_gen_rand = 1;
+ }
+#else
if (!gctx->iv_set)
return -1;
+#endif /* FIPS_MODE */
+
if (in) {
if (out == NULL) {
if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
{
- EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,c);
+ EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX, c);
+
if (type == EVP_CTRL_COPY) {
EVP_CIPHER_CTX *out = ptr;
EVP_AES_XTS_CTX *xctx_out = EVP_C_DATA(EVP_AES_XTS_CTX,out);
+
if (xctx->xts.key1) {
if (xctx->xts.key1 != &xctx->ks1)
return 0;
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
+
if (!iv && !key)
return 1;
- if (key)
+ if (key) {
do {
+ /* The key is two half length keys in reality */
+ const int bytes = EVP_CIPHER_CTX_key_length(ctx) / 2;
+ const int bits = bytes * 8;
+
+ /*
+ * Verify that the two keys are different.
+ *
+ * This addresses the vulnerability described in Rogaway's
+ * September 2004 paper:
+ *
+ * "Efficient Instantiations of Tweakable Blockciphers and
+ * Refinements to Modes OCB and PMAC".
+ * (http://web.cs.ucdavis.edu/~rogaway/papers/offsets.pdf)
+ *
+ * FIPS 140-2 IG A.9 XTS-AES Key Generation Requirements states
+ * that:
+ * "The check for Key_1 != Key_2 shall be done at any place
+ * BEFORE using the keys in the XTS-AES algorithm to process
+ * data with them."
+ */
+ if ((!allow_insecure_decrypt || enc)
+ && CRYPTO_memcmp(key, key + bytes, bytes) == 0) {
+ EVPerr(EVP_F_AES_XTS_INIT_KEY, EVP_R_XTS_DUPLICATED_KEYS);
+ return 0;
+ }
+
#ifdef AES_XTS_ASM
xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
#else
#ifdef HWAES_CAPABLE
if (HWAES_CAPABLE) {
if (enc) {
- HWAES_set_encrypt_key(key,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ HWAES_set_encrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) HWAES_encrypt;
# ifdef HWAES_xts_encrypt
xctx->stream = HWAES_xts_encrypt;
# endif
} else {
- HWAES_set_decrypt_key(key,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ HWAES_set_decrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) HWAES_decrypt;
# ifdef HWAES_xts_decrypt
xctx->stream = HWAES_xts_decrypt;
#endif
}
- HWAES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks2.ks);
+ HWAES_set_encrypt_key(key + bytes, bits, &xctx->ks2.ks);
xctx->xts.block2 = (block128_f) HWAES_encrypt;
xctx->xts.key1 = &xctx->ks1;
#ifdef VPAES_CAPABLE
if (VPAES_CAPABLE) {
if (enc) {
- vpaes_set_encrypt_key(key,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ vpaes_set_encrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) vpaes_encrypt;
} else {
- vpaes_set_decrypt_key(key,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ vpaes_set_decrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) vpaes_decrypt;
}
- vpaes_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks2.ks);
+ vpaes_set_encrypt_key(key + bytes, bits, &xctx->ks2.ks);
xctx->xts.block2 = (block128_f) vpaes_encrypt;
xctx->xts.key1 = &xctx->ks1;
(void)0; /* terminate potentially open 'else' */
if (enc) {
- AES_set_encrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ AES_set_encrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) AES_encrypt;
} else {
- AES_set_decrypt_key(key, EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks1.ks);
+ AES_set_decrypt_key(key, bits, &xctx->ks1.ks);
xctx->xts.block1 = (block128_f) AES_decrypt;
}
- AES_set_encrypt_key(key + EVP_CIPHER_CTX_key_length(ctx) / 2,
- EVP_CIPHER_CTX_key_length(ctx) * 4,
- &xctx->ks2.ks);
+ AES_set_encrypt_key(key + bytes, bits, &xctx->ks2.ks);
xctx->xts.block2 = (block128_f) AES_encrypt;
xctx->xts.key1 = &xctx->ks1;
} while (0);
+ }
if (iv) {
xctx->xts.key2 = &xctx->ks2;
const unsigned char *in, size_t len)
{
EVP_AES_XTS_CTX *xctx = EVP_C_DATA(EVP_AES_XTS_CTX,ctx);
- if (!xctx->xts.key1 || !xctx->xts.key2)
+
+ if (xctx->xts.key1 == NULL
+ || xctx->xts.key2 == NULL
+ || out == NULL
+ || in == NULL
+ || len < AES_BLOCK_SIZE)
return 0;
- if (!out || !in || len < AES_BLOCK_SIZE)
+
+ /*
+ * Impose a limit of 2^20 blocks per data unit as specifed by
+ * IEEE Std 1619-2018. The earlier and obsolete IEEE Std 1619-2007
+ * indicated that this was a SHOULD NOT rather than a MUST NOT.
+ * NIST SP 800-38E mandates the same limit.
+ */
+ if (len > XTS_MAX_BLOCKS_PER_DATA_UNIT * AES_BLOCK_SIZE) {
+ EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_XTS_DATA_UNIT_IS_TOO_LARGE);
return 0;
+ }
+
if (xctx->stream)
(*xctx->stream) (in, out, len,
xctx->xts.key1, xctx->xts.key2,
if (!cctx->iv_set)
return -1;
- if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
- return -1;
if (!out) {
if (!in) {
if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
CRYPTO_ccm128_aad(ccm, in, len);
return len;
}
+
+ /* The tag must be set before actually decrypting data */
+ if (!EVP_CIPHER_CTX_encrypting(ctx) && !cctx->tag_set)
+ return -1;
+
/* If not set length yet do it */
if (!cctx->len_set) {
if (CRYPTO_ccm128_setiv(ccm, EVP_CIPHER_CTX_iv_noconst(ctx),
typedef struct {
union {
- double align;
+ OSSL_UNION_ALIGN;
AES_KEY ks;
} ks;
/* Indicates if IV has been set */
}
}
-# 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 ((ocb128_f)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 ((ocb128_f)NULL)
-# endif
-# endif
-
static int aes_ocb_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
BLOCK_CIPHER_custom(NID_aes, 256, 16, 12, ocb, OCB,
EVP_CIPH_FLAG_AEAD_CIPHER | CUSTOM_FLAGS)
#endif /* OPENSSL_NO_OCB */
+
+/* AES-SIV mode */
+#ifndef OPENSSL_NO_SIV
+
+typedef SIV128_CONTEXT EVP_AES_SIV_CTX;
+
+#define aesni_siv_init_key aes_siv_init_key
+static int aes_siv_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+ const unsigned char *iv, int enc)
+{
+ const EVP_CIPHER *ctr;
+ const EVP_CIPHER *cbc;
+ SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
+ int klen = EVP_CIPHER_CTX_key_length(ctx) / 2;
+
+ if (key == NULL)
+ return 1;
+
+ switch (klen) {
+ case 16:
+ cbc = EVP_aes_128_cbc();
+ ctr = EVP_aes_128_ctr();
+ break;
+ case 24:
+ cbc = EVP_aes_192_cbc();
+ ctr = EVP_aes_192_ctr();
+ break;
+ case 32:
+ cbc = EVP_aes_256_cbc();
+ ctr = EVP_aes_256_ctr();
+ break;
+ default:
+ return 0;
+ }
+
+ /* klen is the length of the underlying cipher, not the input key,
+ which should be twice as long */
+ return CRYPTO_siv128_init(sctx, key, klen, cbc, ctr);
+}
+
+#define aesni_siv_cipher aes_siv_cipher
+static int aes_siv_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, ctx);
+
+ /* EncryptFinal or DecryptFinal */
+ if (in == NULL)
+ return CRYPTO_siv128_finish(sctx);
+
+ /* Deal with associated data */
+ if (out == NULL)
+ return CRYPTO_siv128_aad(sctx, in, len);
+
+ if (EVP_CIPHER_CTX_encrypting(ctx))
+ return CRYPTO_siv128_encrypt(sctx, in, out, len);
+
+ return CRYPTO_siv128_decrypt(sctx, in, out, len);
+}
+
+#define aesni_siv_cleanup aes_siv_cleanup
+static int aes_siv_cleanup(EVP_CIPHER_CTX *c)
+{
+ SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
+
+ return CRYPTO_siv128_cleanup(sctx);
+}
+
+
+#define aesni_siv_ctrl aes_siv_ctrl
+static int aes_siv_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
+{
+ SIV128_CONTEXT *sctx = EVP_C_DATA(SIV128_CONTEXT, c);
+ SIV128_CONTEXT *sctx_out;
+
+ switch (type) {
+ case EVP_CTRL_INIT:
+ return CRYPTO_siv128_cleanup(sctx);
+
+ case EVP_CTRL_SET_SPEED:
+ return CRYPTO_siv128_speed(sctx, arg);
+
+ case EVP_CTRL_AEAD_SET_TAG:
+ if (!EVP_CIPHER_CTX_encrypting(c))
+ return CRYPTO_siv128_set_tag(sctx, ptr, arg);
+ return 1;
+
+ case EVP_CTRL_AEAD_GET_TAG:
+ if (!EVP_CIPHER_CTX_encrypting(c))
+ return 0;
+ return CRYPTO_siv128_get_tag(sctx, ptr, arg);
+
+ case EVP_CTRL_COPY:
+ sctx_out = EVP_C_DATA(SIV128_CONTEXT, (EVP_CIPHER_CTX*)ptr);
+ return CRYPTO_siv128_copy_ctx(sctx_out, sctx);
+
+ default:
+ return -1;
+
+ }
+}
+
+#define SIV_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_DEFAULT_ASN1 \
+ | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
+ | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CUSTOM_COPY \
+ | EVP_CIPH_CTRL_INIT)
+
+BLOCK_CIPHER_custom(NID_aes, 128, 1, 0, siv, SIV, SIV_FLAGS)
+BLOCK_CIPHER_custom(NID_aes, 192, 1, 0, siv, SIV, SIV_FLAGS)
+BLOCK_CIPHER_custom(NID_aes, 256, 1, 0, siv, SIV, SIV_FLAGS)
+#endif
projects / openssl.git / blobdiff