#if !defined(OPENSSL_NO_AES) && !defined(OPENSSL_NO_SHA256)
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include <openssl/aes.h>
-#include <openssl/sha.h>
-#include <openssl/rand.h>
-#include "modes_lcl.h"
-
-#ifndef EVP_CIPH_FLAG_AEAD_CIPHER
-#define EVP_CIPH_FLAG_AEAD_CIPHER 0x200000
-#define EVP_CTRL_AEAD_TLS1_AAD 0x16
-#define EVP_CTRL_AEAD_SET_MAC_KEY 0x17
-#endif
-
-#if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1)
-#define EVP_CIPH_FLAG_DEFAULT_ASN1 0
-#endif
-
-#if !defined(EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK)
-#define EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0
-#endif
-
-#define TLS1_1_VERSION 0x0302
-
-typedef struct
- {
- AES_KEY ks;
- SHA256_CTX head,tail,md;
- size_t payload_length; /* AAD length in decrypt case */
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include <openssl/aes.h>
+# include <openssl/sha.h>
+# include <openssl/rand.h>
+# include "modes_lcl.h"
+
+# ifndef EVP_CIPH_FLAG_AEAD_CIPHER
+# define EVP_CIPH_FLAG_AEAD_CIPHER 0x200000
+# define EVP_CTRL_AEAD_TLS1_AAD 0x16
+# define EVP_CTRL_AEAD_SET_MAC_KEY 0x17
+# endif
+
+# if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1)
+# define EVP_CIPH_FLAG_DEFAULT_ASN1 0
+# endif
+
+# if !defined(EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK)
+# define EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0
+# endif
+
+# define TLS1_1_VERSION 0x0302
+
+typedef struct {
+ AES_KEY ks;
+ SHA256_CTX head, tail, md;
+ size_t payload_length; /* AAD length in decrypt case */
union {
- unsigned int tls_ver;
- unsigned char tls_aad[16]; /* 13 used */
+ unsigned int tls_ver;
+ unsigned char tls_aad[16]; /* 13 used */
} aux;
- } EVP_AES_HMAC_SHA256;
+} EVP_AES_HMAC_SHA256;
-#define NO_PAYLOAD_LENGTH ((size_t)-1)
+# define NO_PAYLOAD_LENGTH ((size_t)-1)
-#if defined(AES_ASM) && ( \
- defined(__x86_64) || defined(__x86_64__) || \
- defined(_M_AMD64) || defined(_M_X64) || \
- defined(__INTEL__) )
+# if defined(AES_ASM) && ( \
+ defined(__x86_64) || defined(__x86_64__) || \
+ defined(_M_AMD64) || defined(_M_X64) || \
+ defined(__INTEL__) )
-extern unsigned int OPENSSL_ia32cap_P[3];
-#define AESNI_CAPABLE (1<<(57-32))
+extern unsigned int OPENSSL_ia32cap_P[];
+# define AESNI_CAPABLE (1<<(57-32))
int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
+ AES_KEY *key);
int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
+ AES_KEY *key);
void aesni_cbc_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key,
- unsigned char *ivec, int enc);
+ unsigned char *out,
+ size_t length,
+ const AES_KEY *key, unsigned char *ivec, int enc);
-int aesni_cbc_sha256_enc (const void *inp, void *out, size_t blocks,
- const AES_KEY *key, unsigned char iv[16],
- SHA256_CTX *ctx,const void *in0);
+int aesni_cbc_sha256_enc(const void *inp, void *out, size_t blocks,
+ const AES_KEY *key, unsigned char iv[16],
+ SHA256_CTX *ctx, const void *in0);
-#define data(ctx) ((EVP_AES_HMAC_SHA256 *)(ctx)->cipher_data)
+# define data(ctx) ((EVP_AES_HMAC_SHA256 *)(ctx)->cipher_data)
static int aesni_cbc_hmac_sha256_init_key(EVP_CIPHER_CTX *ctx,
- const unsigned char *inkey,
- const unsigned char *iv, int enc)
- {
- EVP_AES_HMAC_SHA256 *key = data(ctx);
- int ret;
-
- if (enc)
- memset(&key->ks,0,sizeof(key->ks.rd_key)),
- ret=aesni_set_encrypt_key(inkey,ctx->key_len*8,&key->ks);
- else
- ret=aesni_set_decrypt_key(inkey,ctx->key_len*8,&key->ks);
-
- SHA256_Init(&key->head); /* handy when benchmarking */
- key->tail = key->head;
- key->md = key->head;
-
- key->payload_length = NO_PAYLOAD_LENGTH;
-
- return ret<0?0:1;
- }
-
-#define STITCHED_CALL
+ const unsigned char *inkey,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_HMAC_SHA256 *key = data(ctx);
+ int ret;
-#if !defined(STITCHED_CALL)
-#define aes_off 0
-#endif
+ if (enc)
+ memset(&key->ks, 0, sizeof(key->ks.rd_key)),
+ ret = aesni_set_encrypt_key(inkey, ctx->key_len * 8, &key->ks);
+ else
+ ret = aesni_set_decrypt_key(inkey, ctx->key_len * 8, &key->ks);
-void sha256_block_data_order (void *c,const void *p,size_t len);
+ SHA256_Init(&key->head); /* handy when benchmarking */
+ key->tail = key->head;
+ key->md = key->head;
-static void sha256_update(SHA256_CTX *c,const void *data,size_t len)
-{ const unsigned char *ptr = data;
- size_t res;
+ key->payload_length = NO_PAYLOAD_LENGTH;
- if ((res = c->num)) {
- res = SHA256_CBLOCK-res;
- if (len<res) res=len;
- SHA256_Update (c,ptr,res);
- ptr += res;
- len -= res;
- }
+ return ret < 0 ? 0 : 1;
+}
- res = len % SHA256_CBLOCK;
- len -= res;
+# define STITCHED_CALL
- if (len) {
- sha256_block_data_order(c,ptr,len/SHA256_CBLOCK);
+# if !defined(STITCHED_CALL)
+# define aes_off 0
+# endif
- ptr += len;
- c->Nh += len>>29;
- c->Nl += len<<=3;
- if (c->Nl<(unsigned int)len) c->Nh++;
- }
+void sha256_block_data_order(void *c, const void *p, size_t len);
- if (res)
- SHA256_Update(c,ptr,res);
+static void sha256_update(SHA256_CTX *c, const void *data, size_t len)
+{
+ const unsigned char *ptr = data;
+ size_t res;
+
+ if ((res = c->num)) {
+ res = SHA256_CBLOCK - res;
+ if (len < res)
+ res = len;
+ SHA256_Update(c, ptr, res);
+ ptr += res;
+ len -= res;
+ }
+
+ res = len % SHA256_CBLOCK;
+ len -= res;
+
+ if (len) {
+ sha256_block_data_order(c, ptr, len / SHA256_CBLOCK);
+
+ ptr += len;
+ c->Nh += len >> 29;
+ c->Nl += len <<= 3;
+ if (c->Nl < (unsigned int)len)
+ c->Nh++;
+ }
+
+ if (res)
+ SHA256_Update(c, ptr, res);
}
-#ifdef SHA256_Update
-#undef SHA256_Update
-#endif
-#define SHA256_Update sha256_update
+# ifdef SHA256_Update
+# undef SHA256_Update
+# endif
+# define SHA256_Update sha256_update
-#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
+# if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
-typedef struct { unsigned int A[8],B[8],C[8],D[8],E[8],F[8],G[8],H[8]; } SHA256_MB_CTX;
-typedef struct { const unsigned char *ptr; int blocks; } HASH_DESC;
+typedef struct {
+ unsigned int A[8], B[8], C[8], D[8], E[8], F[8], G[8], H[8];
+} SHA256_MB_CTX;
+typedef struct {
+ const unsigned char *ptr;
+ int blocks;
+} HASH_DESC;
-void sha256_multi_block(SHA256_MB_CTX *,const HASH_DESC *,int);
+void sha256_multi_block(SHA256_MB_CTX *, const HASH_DESC *, int);
-typedef struct { const unsigned char *inp; unsigned char *out;
- int blocks; u64 iv[2]; } CIPH_DESC;
+typedef struct {
+ const unsigned char *inp;
+ unsigned char *out;
+ int blocks;
+ u64 iv[2];
+} CIPH_DESC;
-void aesni_multi_cbc_encrypt(CIPH_DESC *,void *,int);
+void aesni_multi_cbc_encrypt(CIPH_DESC *, void *, int);
static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA256 *key,
- unsigned char *out, const unsigned char *inp, size_t inp_len,
- int n4x) /* n4x is 1 or 2 */
-{
- HASH_DESC hash_d[8], edges[8];
- CIPH_DESC ciph_d[8];
- unsigned char storage[sizeof(SHA256_MB_CTX)+32];
- union { u64 q[16];
- u32 d[32];
- u8 c[128]; } blocks[8];
- SHA256_MB_CTX *ctx;
- unsigned int frag, last, packlen, i, x4=4*n4x, minblocks, processed=0;
- size_t ret = 0;
- u8 *IVs;
-#if defined(BSWAP8)
- u64 seqnum;
-#endif
-
- /* ask for IVs in bulk */
- if (RAND_bytes((IVs=blocks[0].c),16*x4)<=0)
- return 0;
-
- /* align */
- ctx = (SHA256_MB_CTX *)(storage+32-((size_t)storage%32));
-
- frag = (unsigned int)inp_len>>(1+n4x);
- last = (unsigned int)inp_len+frag-(frag<<(1+n4x));
- if (last>frag && ((last+13+9)%64)<(x4-1)) {
- frag++;
- last -= x4-1;
- }
-
- packlen = 5+16+((frag+32+16)&-16);
-
- /* populate descriptors with pointers and IVs */
- hash_d[0].ptr = inp;
- ciph_d[0].inp = inp;
- ciph_d[0].out = out+5+16; /* 5+16 is place for header and explicit IV */
- memcpy(ciph_d[0].out-16,IVs,16);
- memcpy(ciph_d[0].iv,IVs,16); IVs += 16;
-
- for (i=1;i<x4;i++) {
- ciph_d[i].inp = hash_d[i].ptr = hash_d[i-1].ptr+frag;
- ciph_d[i].out = ciph_d[i-1].out+packlen;
- memcpy(ciph_d[i].out-16,IVs,16);
- memcpy(ciph_d[i].iv,IVs,16); IVs+=16;
- }
-
-#if defined(BSWAP8)
- memcpy(blocks[0].c,key->md.data,8);
- seqnum = BSWAP8(blocks[0].q[0]);
-#endif
- for (i=0;i<x4;i++) {
- unsigned int len = (i==(x4-1)?last:frag);
-#if !defined(BSWAP8)
- unsigned int carry, j;
-#endif
-
- ctx->A[i] = key->md.h[0];
- ctx->B[i] = key->md.h[1];
- ctx->C[i] = key->md.h[2];
- ctx->D[i] = key->md.h[3];
- ctx->E[i] = key->md.h[4];
- ctx->F[i] = key->md.h[5];
- ctx->G[i] = key->md.h[6];
- ctx->H[i] = key->md.h[7];
-
- /* fix seqnum */
-#if defined(BSWAP8)
- blocks[i].q[0] = BSWAP8(seqnum+i);
-#else
- for (carry=i,j=8;j--;) {
- blocks[i].c[j] = ((u8*)key->md.data)[j]+carry;
- carry = (blocks[i].c[j]-carry)>>(sizeof(carry)*8-1);
- }
-#endif
- blocks[i].c[8] = ((u8*)key->md.data)[8];
- blocks[i].c[9] = ((u8*)key->md.data)[9];
- blocks[i].c[10] = ((u8*)key->md.data)[10];
- /* fix length */
- blocks[i].c[11] = (u8)(len>>8);
- blocks[i].c[12] = (u8)(len);
-
- memcpy(blocks[i].c+13,hash_d[i].ptr,64-13);
- hash_d[i].ptr += 64-13;
- hash_d[i].blocks = (len-(64-13))/64;
-
- edges[i].ptr = blocks[i].c;
- edges[i].blocks = 1;
- }
-
- /* hash 13-byte headers and first 64-13 bytes of inputs */
- sha256_multi_block(ctx,edges,n4x);
- /* hash bulk inputs */
-#define MAXCHUNKSIZE 2048
-#if MAXCHUNKSIZE%64
-#error "MAXCHUNKSIZE is not divisible by 64"
-#elif MAXCHUNKSIZE
- /* goal is to minimize pressure on L1 cache by moving
- * in shorter steps, so that hashed data is still in
- * the cache by the time we encrypt it */
- minblocks = ((frag<=last ? frag : last)-(64-13))/64;
- if (minblocks>MAXCHUNKSIZE/64) {
- for (i=0;i<x4;i++) {
- edges[i].ptr = hash_d[i].ptr;
- edges[i].blocks = MAXCHUNKSIZE/64;
- ciph_d[i].blocks = MAXCHUNKSIZE/16;
- }
- do {
- sha256_multi_block(ctx,edges,n4x);
- aesni_multi_cbc_encrypt(ciph_d,&key->ks,n4x);
-
- for (i=0;i<x4;i++) {
- edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE;
- hash_d[i].blocks -= MAXCHUNKSIZE/64;
- edges[i].blocks = MAXCHUNKSIZE/64;
- ciph_d[i].inp += MAXCHUNKSIZE;
- ciph_d[i].out += MAXCHUNKSIZE;
- ciph_d[i].blocks = MAXCHUNKSIZE/16;
- memcpy(ciph_d[i].iv,ciph_d[i].out-16,16);
- }
- processed += MAXCHUNKSIZE;
- minblocks -= MAXCHUNKSIZE/64;
- } while (minblocks>MAXCHUNKSIZE/64);
- }
-#endif
-#undef MAXCHUNKSIZE
- sha256_multi_block(ctx,hash_d,n4x);
-
- memset(blocks,0,sizeof(blocks));
- for (i=0;i<x4;i++) {
- unsigned int len = (i==(x4-1)?last:frag),
- off = hash_d[i].blocks*64;
- const unsigned char *ptr = hash_d[i].ptr+off;
-
- off = (len-processed)-(64-13)-off; /* remainder actually */
- memcpy(blocks[i].c,ptr,off);
- blocks[i].c[off]=0x80;
- len += 64+13; /* 64 is HMAC header */
- len *= 8; /* convert to bits */
- if (off<(64-8)) {
-#ifdef BSWAP4
- blocks[i].d[15] = BSWAP4(len);
-#else
- PUTU32(blocks[i].c+60,len);
-#endif
- edges[i].blocks = 1;
- } else {
-#ifdef BSWAP4
- blocks[i].d[31] = BSWAP4(len);
-#else
- PUTU32(blocks[i].c+124,len);
-#endif
- edges[i].blocks = 2;
- }
- edges[i].ptr = blocks[i].c;
- }
-
- /* hash input tails and finalize */
- sha256_multi_block(ctx,edges,n4x);
-
- memset(blocks,0,sizeof(blocks));
- for (i=0;i<x4;i++) {
-#ifdef BSWAP4
- blocks[i].d[0] = BSWAP4(ctx->A[i]); ctx->A[i] = key->tail.h[0];
- blocks[i].d[1] = BSWAP4(ctx->B[i]); ctx->B[i] = key->tail.h[1];
- blocks[i].d[2] = BSWAP4(ctx->C[i]); ctx->C[i] = key->tail.h[2];
- blocks[i].d[3] = BSWAP4(ctx->D[i]); ctx->D[i] = key->tail.h[3];
- blocks[i].d[4] = BSWAP4(ctx->E[i]); ctx->E[i] = key->tail.h[4];
- blocks[i].d[5] = BSWAP4(ctx->F[i]); ctx->F[i] = key->tail.h[5];
- blocks[i].d[6] = BSWAP4(ctx->G[i]); ctx->G[i] = key->tail.h[6];
- blocks[i].d[7] = BSWAP4(ctx->H[i]); ctx->H[i] = key->tail.h[7];
- blocks[i].c[32] = 0x80;
- blocks[i].d[15] = BSWAP4((64+32)*8);
-#else
- PUTU32(blocks[i].c+0,ctx->A[i]); ctx->A[i] = key->tail.h[0];
- PUTU32(blocks[i].c+4,ctx->B[i]); ctx->B[i] = key->tail.h[1];
- PUTU32(blocks[i].c+8,ctx->C[i]); ctx->C[i] = key->tail.h[2];
- PUTU32(blocks[i].c+12,ctx->D[i]); ctx->D[i] = key->tail.h[3];
- PUTU32(blocks[i].c+16,ctx->E[i]); ctx->E[i] = key->tail.h[4];
- PUTU32(blocks[i].c+20,ctx->F[i]); ctx->F[i] = key->tail.h[5];
- PUTU32(blocks[i].c+24,ctx->G[i]); ctx->G[i] = key->tail.h[6];
- PUTU32(blocks[i].c+28,ctx->H[i]); ctx->H[i] = key->tail.h[7];
- blocks[i].c[32] = 0x80;
- PUTU32(blocks[i].c+60,(64+32)*8);
-#endif
- edges[i].ptr = blocks[i].c;
- edges[i].blocks = 1;
- }
-
- /* finalize MACs */
- sha256_multi_block(ctx,edges,n4x);
-
- for (i=0;i<x4;i++) {
- unsigned int len = (i==(x4-1)?last:frag), pad, j;
- unsigned char *out0 = out;
-
- memcpy(ciph_d[i].out,ciph_d[i].inp,len-processed);
- ciph_d[i].inp = ciph_d[i].out;
-
- out += 5+16+len;
-
- /* write MAC */
- PUTU32(out+0,ctx->A[i]);
- PUTU32(out+4,ctx->B[i]);
- PUTU32(out+8,ctx->C[i]);
- PUTU32(out+12,ctx->D[i]);
- PUTU32(out+16,ctx->E[i]);
- PUTU32(out+20,ctx->F[i]);
- PUTU32(out+24,ctx->G[i]);
- PUTU32(out+28,ctx->H[i]);
- out += 32;
- len += 32;
-
- /* pad */
- pad = 15-len%16;
- for (j=0;j<=pad;j++) *(out++) = pad;
- len += pad+1;
-
- ciph_d[i].blocks = (len-processed)/16;
- len += 16; /* account for explicit iv */
-
- /* arrange header */
- out0[0] = ((u8*)key->md.data)[8];
- out0[1] = ((u8*)key->md.data)[9];
- out0[2] = ((u8*)key->md.data)[10];
- out0[3] = (u8)(len>>8);
- out0[4] = (u8)(len);
-
- ret += len+5;
- inp += frag;
- }
-
- aesni_multi_cbc_encrypt(ciph_d,&key->ks,n4x);
-
- OPENSSL_cleanse(blocks,sizeof(blocks));
- OPENSSL_cleanse(ctx,sizeof(*ctx));
-
- return ret;
+ unsigned char *out,
+ const unsigned char *inp,
+ size_t inp_len, int n4x)
+{ /* n4x is 1 or 2 */
+ HASH_DESC hash_d[8], edges[8];
+ CIPH_DESC ciph_d[8];
+ unsigned char storage[sizeof(SHA256_MB_CTX) + 32];
+ union {
+ u64 q[16];
+ u32 d[32];
+ u8 c[128];
+ } blocks[8];
+ SHA256_MB_CTX *ctx;
+ unsigned int frag, last, packlen, i, x4 = 4 * n4x, minblocks, processed =
+ 0;
+ size_t ret = 0;
+ u8 *IVs;
+# if defined(BSWAP8)
+ u64 seqnum;
+# endif
+
+ /* ask for IVs in bulk */
+ if (RAND_bytes((IVs = blocks[0].c), 16 * x4) <= 0)
+ return 0;
+
+ /* align */
+ ctx = (SHA256_MB_CTX *) (storage + 32 - ((size_t)storage % 32));
+
+ frag = (unsigned int)inp_len >> (1 + n4x);
+ last = (unsigned int)inp_len + frag - (frag << (1 + n4x));
+ if (last > frag && ((last + 13 + 9) % 64) < (x4 - 1)) {
+ frag++;
+ last -= x4 - 1;
+ }
+
+ packlen = 5 + 16 + ((frag + 32 + 16) & -16);
+
+ /* populate descriptors with pointers and IVs */
+ hash_d[0].ptr = inp;
+ ciph_d[0].inp = inp;
+ /* 5+16 is place for header and explicit IV */
+ ciph_d[0].out = out + 5 + 16;
+ memcpy(ciph_d[0].out - 16, IVs, 16);
+ memcpy(ciph_d[0].iv, IVs, 16);
+ IVs += 16;
+
+ for (i = 1; i < x4; i++) {
+ ciph_d[i].inp = hash_d[i].ptr = hash_d[i - 1].ptr + frag;
+ ciph_d[i].out = ciph_d[i - 1].out + packlen;
+ memcpy(ciph_d[i].out - 16, IVs, 16);
+ memcpy(ciph_d[i].iv, IVs, 16);
+ IVs += 16;
+ }
+
+# if defined(BSWAP8)
+ memcpy(blocks[0].c, key->md.data, 8);
+ seqnum = BSWAP8(blocks[0].q[0]);
+# endif
+ for (i = 0; i < x4; i++) {
+ unsigned int len = (i == (x4 - 1) ? last : frag);
+# if !defined(BSWAP8)
+ unsigned int carry, j;
+# endif
+
+ ctx->A[i] = key->md.h[0];
+ ctx->B[i] = key->md.h[1];
+ ctx->C[i] = key->md.h[2];
+ ctx->D[i] = key->md.h[3];
+ ctx->E[i] = key->md.h[4];
+ ctx->F[i] = key->md.h[5];
+ ctx->G[i] = key->md.h[6];
+ ctx->H[i] = key->md.h[7];
+
+ /* fix seqnum */
+# if defined(BSWAP8)
+ blocks[i].q[0] = BSWAP8(seqnum + i);
+# else
+ for (carry = i, j = 8; j--;) {
+ blocks[i].c[j] = ((u8 *)key->md.data)[j] + carry;
+ carry = (blocks[i].c[j] - carry) >> (sizeof(carry) * 8 - 1);
+ }
+# endif
+ blocks[i].c[8] = ((u8 *)key->md.data)[8];
+ blocks[i].c[9] = ((u8 *)key->md.data)[9];
+ blocks[i].c[10] = ((u8 *)key->md.data)[10];
+ /* fix length */
+ blocks[i].c[11] = (u8)(len >> 8);
+ blocks[i].c[12] = (u8)(len);
+
+ memcpy(blocks[i].c + 13, hash_d[i].ptr, 64 - 13);
+ hash_d[i].ptr += 64 - 13;
+ hash_d[i].blocks = (len - (64 - 13)) / 64;
+
+ edges[i].ptr = blocks[i].c;
+ edges[i].blocks = 1;
+ }
+
+ /* hash 13-byte headers and first 64-13 bytes of inputs */
+ sha256_multi_block(ctx, edges, n4x);
+ /* hash bulk inputs */
+# define MAXCHUNKSIZE 2048
+# if MAXCHUNKSIZE%64
+# error "MAXCHUNKSIZE is not divisible by 64"
+# elif MAXCHUNKSIZE
+ /*
+ * goal is to minimize pressure on L1 cache by moving in shorter steps,
+ * so that hashed data is still in the cache by the time we encrypt it
+ */
+ minblocks = ((frag <= last ? frag : last) - (64 - 13)) / 64;
+ if (minblocks > MAXCHUNKSIZE / 64) {
+ for (i = 0; i < x4; i++) {
+ edges[i].ptr = hash_d[i].ptr;
+ edges[i].blocks = MAXCHUNKSIZE / 64;
+ ciph_d[i].blocks = MAXCHUNKSIZE / 16;
+ }
+ do {
+ sha256_multi_block(ctx, edges, n4x);
+ aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);
+
+ for (i = 0; i < x4; i++) {
+ edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE;
+ hash_d[i].blocks -= MAXCHUNKSIZE / 64;
+ edges[i].blocks = MAXCHUNKSIZE / 64;
+ ciph_d[i].inp += MAXCHUNKSIZE;
+ ciph_d[i].out += MAXCHUNKSIZE;
+ ciph_d[i].blocks = MAXCHUNKSIZE / 16;
+ memcpy(ciph_d[i].iv, ciph_d[i].out - 16, 16);
+ }
+ processed += MAXCHUNKSIZE;
+ minblocks -= MAXCHUNKSIZE / 64;
+ } while (minblocks > MAXCHUNKSIZE / 64);
+ }
+# endif
+# undef MAXCHUNKSIZE
+ sha256_multi_block(ctx, hash_d, n4x);
+
+ memset(blocks, 0, sizeof(blocks));
+ for (i = 0; i < x4; i++) {
+ unsigned int len = (i == (x4 - 1) ? last : frag),
+ off = hash_d[i].blocks * 64;
+ const unsigned char *ptr = hash_d[i].ptr + off;
+
+ off = (len - processed) - (64 - 13) - off; /* remainder actually */
+ memcpy(blocks[i].c, ptr, off);
+ blocks[i].c[off] = 0x80;
+ len += 64 + 13; /* 64 is HMAC header */
+ len *= 8; /* convert to bits */
+ if (off < (64 - 8)) {
+# ifdef BSWAP4
+ blocks[i].d[15] = BSWAP4(len);
+# else
+ PUTU32(blocks[i].c + 60, len);
+# endif
+ edges[i].blocks = 1;
+ } else {
+# ifdef BSWAP4
+ blocks[i].d[31] = BSWAP4(len);
+# else
+ PUTU32(blocks[i].c + 124, len);
+# endif
+ edges[i].blocks = 2;
+ }
+ edges[i].ptr = blocks[i].c;
+ }
+
+ /* hash input tails and finalize */
+ sha256_multi_block(ctx, edges, n4x);
+
+ memset(blocks, 0, sizeof(blocks));
+ for (i = 0; i < x4; i++) {
+# ifdef BSWAP4
+ blocks[i].d[0] = BSWAP4(ctx->A[i]);
+ ctx->A[i] = key->tail.h[0];
+ blocks[i].d[1] = BSWAP4(ctx->B[i]);
+ ctx->B[i] = key->tail.h[1];
+ blocks[i].d[2] = BSWAP4(ctx->C[i]);
+ ctx->C[i] = key->tail.h[2];
+ blocks[i].d[3] = BSWAP4(ctx->D[i]);
+ ctx->D[i] = key->tail.h[3];
+ blocks[i].d[4] = BSWAP4(ctx->E[i]);
+ ctx->E[i] = key->tail.h[4];
+ blocks[i].d[5] = BSWAP4(ctx->F[i]);
+ ctx->F[i] = key->tail.h[5];
+ blocks[i].d[6] = BSWAP4(ctx->G[i]);
+ ctx->G[i] = key->tail.h[6];
+ blocks[i].d[7] = BSWAP4(ctx->H[i]);
+ ctx->H[i] = key->tail.h[7];
+ blocks[i].c[32] = 0x80;
+ blocks[i].d[15] = BSWAP4((64 + 32) * 8);
+# else
+ PUTU32(blocks[i].c + 0, ctx->A[i]);
+ ctx->A[i] = key->tail.h[0];
+ PUTU32(blocks[i].c + 4, ctx->B[i]);
+ ctx->B[i] = key->tail.h[1];
+ PUTU32(blocks[i].c + 8, ctx->C[i]);
+ ctx->C[i] = key->tail.h[2];
+ PUTU32(blocks[i].c + 12, ctx->D[i]);
+ ctx->D[i] = key->tail.h[3];
+ PUTU32(blocks[i].c + 16, ctx->E[i]);
+ ctx->E[i] = key->tail.h[4];
+ PUTU32(blocks[i].c + 20, ctx->F[i]);
+ ctx->F[i] = key->tail.h[5];
+ PUTU32(blocks[i].c + 24, ctx->G[i]);
+ ctx->G[i] = key->tail.h[6];
+ PUTU32(blocks[i].c + 28, ctx->H[i]);
+ ctx->H[i] = key->tail.h[7];
+ blocks[i].c[32] = 0x80;
+ PUTU32(blocks[i].c + 60, (64 + 32) * 8);
+# endif
+ edges[i].ptr = blocks[i].c;
+ edges[i].blocks = 1;
+ }
+
+ /* finalize MACs */
+ sha256_multi_block(ctx, edges, n4x);
+
+ for (i = 0; i < x4; i++) {
+ unsigned int len = (i == (x4 - 1) ? last : frag), pad, j;
+ unsigned char *out0 = out;
+
+ memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed);
+ ciph_d[i].inp = ciph_d[i].out;
+
+ out += 5 + 16 + len;
+
+ /* write MAC */
+ PUTU32(out + 0, ctx->A[i]);
+ PUTU32(out + 4, ctx->B[i]);
+ PUTU32(out + 8, ctx->C[i]);
+ PUTU32(out + 12, ctx->D[i]);
+ PUTU32(out + 16, ctx->E[i]);
+ PUTU32(out + 20, ctx->F[i]);
+ PUTU32(out + 24, ctx->G[i]);
+ PUTU32(out + 28, ctx->H[i]);
+ out += 32;
+ len += 32;
+
+ /* pad */
+ pad = 15 - len % 16;
+ for (j = 0; j <= pad; j++)
+ *(out++) = pad;
+ len += pad + 1;
+
+ ciph_d[i].blocks = (len - processed) / 16;
+ len += 16; /* account for explicit iv */
+
+ /* arrange header */
+ out0[0] = ((u8 *)key->md.data)[8];
+ out0[1] = ((u8 *)key->md.data)[9];
+ out0[2] = ((u8 *)key->md.data)[10];
+ out0[3] = (u8)(len >> 8);
+ out0[4] = (u8)(len);
+
+ ret += len + 5;
+ inp += frag;
+ }
+
+ aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);
+
+ OPENSSL_cleanse(blocks, sizeof(blocks));
+ OPENSSL_cleanse(ctx, sizeof(*ctx));
+
+ return ret;
}
-#endif
+# endif
-static int aesni_cbc_hmac_sha256_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len)
- {
- EVP_AES_HMAC_SHA256 *key = data(ctx);
- unsigned int l;
- size_t plen = key->payload_length,
- iv = 0, /* explicit IV in TLS 1.1 and later */
- sha_off = 0;
-#if defined(STITCHED_CALL)
- size_t aes_off = 0,
- blocks;
-
- sha_off = SHA256_CBLOCK-key->md.num;
-#endif
+static int aesni_cbc_hmac_sha256_cipher(EVP_CIPHER_CTX *ctx,
+ unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_HMAC_SHA256 *key = data(ctx);
+ unsigned int l;
+ size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and
+ * later */
+ sha_off = 0;
+# if defined(STITCHED_CALL)
+ size_t aes_off = 0, blocks;
+
+ sha_off = SHA256_CBLOCK - key->md.num;
+# endif
+
+ key->payload_length = NO_PAYLOAD_LENGTH;
+
+ if (len % AES_BLOCK_SIZE)
+ return 0;
+
+ if (ctx->encrypt) {
+ if (plen == NO_PAYLOAD_LENGTH)
+ plen = len;
+ else if (len !=
+ ((plen + SHA256_DIGEST_LENGTH +
+ AES_BLOCK_SIZE) & -AES_BLOCK_SIZE))
+ return 0;
+ else if (key->aux.tls_ver >= TLS1_1_VERSION)
+ iv = AES_BLOCK_SIZE;
+
+# if defined(STITCHED_CALL)
+ if (OPENSSL_ia32cap_P[1] & (1 << (60 - 32)) && /* AVX? */
+ plen > (sha_off + iv) &&
+ (blocks = (plen - (sha_off + iv)) / SHA256_CBLOCK)) {
+ SHA256_Update(&key->md, in + iv, sha_off);
+
+ (void)aesni_cbc_sha256_enc(in, out, blocks, &key->ks,
+ ctx->iv, &key->md, in + iv + sha_off);
+ blocks *= SHA256_CBLOCK;
+ aes_off += blocks;
+ sha_off += blocks;
+ key->md.Nh += blocks >> 29;
+ key->md.Nl += blocks <<= 3;
+ if (key->md.Nl < (unsigned int)blocks)
+ key->md.Nh++;
+ } else {
+ sha_off = 0;
+ }
+# endif
+ sha_off += iv;
+ SHA256_Update(&key->md, in + sha_off, plen - sha_off);
+
+ if (plen != len) { /* "TLS" mode of operation */
+ if (in != out)
+ memcpy(out + aes_off, in + aes_off, plen - aes_off);
+
+ /* calculate HMAC and append it to payload */
+ SHA256_Final(out + plen, &key->md);
+ key->md = key->tail;
+ SHA256_Update(&key->md, out + plen, SHA256_DIGEST_LENGTH);
+ SHA256_Final(out + plen, &key->md);
+
+ /* pad the payload|hmac */
+ plen += SHA256_DIGEST_LENGTH;
+ for (l = len - plen - 1; plen < len; plen++)
+ out[plen] = l;
+ /* encrypt HMAC|padding at once */
+ aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off,
+ &key->ks, ctx->iv, 1);
+ } else {
+ aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off,
+ &key->ks, ctx->iv, 1);
+ }
+ } else {
+ union {
+ unsigned int u[SHA256_DIGEST_LENGTH / sizeof(unsigned int)];
+ unsigned char c[64 + SHA256_DIGEST_LENGTH];
+ } mac, *pmac;
+
+ /* arrange cache line alignment */
+ pmac = (void *)(((size_t)mac.c + 63) & ((size_t)0 - 64));
+
+ /* decrypt HMAC|padding at once */
+ aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0);
+
+ if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */
+ size_t inp_len, mask, j, i;
+ unsigned int res, maxpad, pad, bitlen;
+ int ret = 1;
+ union {
+ unsigned int u[SHA_LBLOCK];
+ unsigned char c[SHA256_CBLOCK];
+ } *data = (void *)key->md.data;
+
+ if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3])
+ >= TLS1_1_VERSION)
+ iv = AES_BLOCK_SIZE;
+
+ if (len < (iv + SHA256_DIGEST_LENGTH + 1))
+ return 0;
+
+ /* omit explicit iv */
+ out += iv;
+ len -= iv;
+
+ /* figure out payload length */
+ pad = out[len - 1];
+ maxpad = len - (SHA256_DIGEST_LENGTH + 1);
+ maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8);
+ maxpad &= 255;
+
+ inp_len = len - (SHA256_DIGEST_LENGTH + pad + 1);
+ mask = (0 - ((inp_len - len) >> (sizeof(inp_len) * 8 - 1)));
+ inp_len &= mask;
+ ret &= (int)mask;
+
+ key->aux.tls_aad[plen - 2] = inp_len >> 8;
+ key->aux.tls_aad[plen - 1] = inp_len;
+
+ /* calculate HMAC */
+ key->md = key->head;
+ SHA256_Update(&key->md, key->aux.tls_aad, plen);
+
+# if 1
+ len -= SHA256_DIGEST_LENGTH; /* amend mac */
+ if (len >= (256 + SHA256_CBLOCK)) {
+ j = (len - (256 + SHA256_CBLOCK)) & (0 - SHA256_CBLOCK);
+ j += SHA256_CBLOCK - key->md.num;
+ SHA256_Update(&key->md, out, j);
+ out += j;
+ len -= j;
+ inp_len -= j;
+ }
+
+ /* but pretend as if we hashed padded payload */
+ bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */
+# ifdef BSWAP4
+ bitlen = BSWAP4(bitlen);
+# else
+ mac.c[0] = 0;
+ mac.c[1] = (unsigned char)(bitlen >> 16);
+ mac.c[2] = (unsigned char)(bitlen >> 8);
+ mac.c[3] = (unsigned char)bitlen;
+ bitlen = mac.u[0];
+# endif
+
+ pmac->u[0] = 0;
+ pmac->u[1] = 0;
+ pmac->u[2] = 0;
+ pmac->u[3] = 0;
+ pmac->u[4] = 0;
+ pmac->u[5] = 0;
+ pmac->u[6] = 0;
+ pmac->u[7] = 0;
+
+ for (res = key->md.num, j = 0; j < len; j++) {
+ size_t c = out[j];
+ mask = (j - inp_len) >> (sizeof(j) * 8 - 8);
+ c &= mask;
+ c |= 0x80 & ~mask & ~((inp_len - j) >> (sizeof(j) * 8 - 8));
+ data->c[res++] = (unsigned char)c;
+
+ if (res != SHA256_CBLOCK)
+ continue;
+
+ /* j is not incremented yet */
+ mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1));
+ data->u[SHA_LBLOCK - 1] |= bitlen & mask;
+ sha256_block_data_order(&key->md, data, 1);
+ mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1));
+ pmac->u[0] |= key->md.h[0] & mask;
+ pmac->u[1] |= key->md.h[1] & mask;
+ pmac->u[2] |= key->md.h[2] & mask;
+ pmac->u[3] |= key->md.h[3] & mask;
+ pmac->u[4] |= key->md.h[4] & mask;
+ pmac->u[5] |= key->md.h[5] & mask;
+ pmac->u[6] |= key->md.h[6] & mask;
+ pmac->u[7] |= key->md.h[7] & mask;
+ res = 0;
+ }
+
+ for (i = res; i < SHA256_CBLOCK; i++, j++)
+ data->c[i] = 0;
+
+ if (res > SHA256_CBLOCK - 8) {
+ mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1));
+ data->u[SHA_LBLOCK - 1] |= bitlen & mask;
+ sha256_block_data_order(&key->md, data, 1);
+ mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
+ pmac->u[0] |= key->md.h[0] & mask;
+ pmac->u[1] |= key->md.h[1] & mask;
+ pmac->u[2] |= key->md.h[2] & mask;
+ pmac->u[3] |= key->md.h[3] & mask;
+ pmac->u[4] |= key->md.h[4] & mask;
+ pmac->u[5] |= key->md.h[5] & mask;
+ pmac->u[6] |= key->md.h[6] & mask;
+ pmac->u[7] |= key->md.h[7] & mask;
+
+ memset(data, 0, SHA256_CBLOCK);
+ j += 64;
+ }
+ data->u[SHA_LBLOCK - 1] = bitlen;
+ sha256_block_data_order(&key->md, data, 1);
+ mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
+ pmac->u[0] |= key->md.h[0] & mask;
+ pmac->u[1] |= key->md.h[1] & mask;
+ pmac->u[2] |= key->md.h[2] & mask;
+ pmac->u[3] |= key->md.h[3] & mask;
+ pmac->u[4] |= key->md.h[4] & mask;
+ pmac->u[5] |= key->md.h[5] & mask;
+ pmac->u[6] |= key->md.h[6] & mask;
+ pmac->u[7] |= key->md.h[7] & mask;
+
+# ifdef BSWAP4
+ pmac->u[0] = BSWAP4(pmac->u[0]);
+ pmac->u[1] = BSWAP4(pmac->u[1]);
+ pmac->u[2] = BSWAP4(pmac->u[2]);
+ pmac->u[3] = BSWAP4(pmac->u[3]);
+ pmac->u[4] = BSWAP4(pmac->u[4]);
+ pmac->u[5] = BSWAP4(pmac->u[5]);
+ pmac->u[6] = BSWAP4(pmac->u[6]);
+ pmac->u[7] = BSWAP4(pmac->u[7]);
+# else
+ for (i = 0; i < 8; i++) {
+ res = pmac->u[i];
+ pmac->c[4 * i + 0] = (unsigned char)(res >> 24);
+ pmac->c[4 * i + 1] = (unsigned char)(res >> 16);
+ pmac->c[4 * i + 2] = (unsigned char)(res >> 8);
+ pmac->c[4 * i + 3] = (unsigned char)res;
+ }
+# endif
+ len += SHA256_DIGEST_LENGTH;
+# else
+ SHA256_Update(&key->md, out, inp_len);
+ res = key->md.num;
+ SHA256_Final(pmac->c, &key->md);
+
+ {
+ unsigned int inp_blocks, pad_blocks;
+
+ /* but pretend as if we hashed padded payload */
+ inp_blocks =
+ 1 + ((SHA256_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
+ res += (unsigned int)(len - inp_len);
+ pad_blocks = res / SHA256_CBLOCK;
+ res %= SHA256_CBLOCK;
+ pad_blocks +=
+ 1 + ((SHA256_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
+ for (; inp_blocks < pad_blocks; inp_blocks++)
+ sha1_block_data_order(&key->md, data, 1);
+ }
+# endif
+ key->md = key->tail;
+ SHA256_Update(&key->md, pmac->c, SHA256_DIGEST_LENGTH);
+ SHA256_Final(pmac->c, &key->md);
+
+ /* verify HMAC */
+ out += inp_len;
+ len -= inp_len;
+# if 1
+ {
+ unsigned char *p =
+ out + len - 1 - maxpad - SHA256_DIGEST_LENGTH;
+ size_t off = out - p;
+ unsigned int c, cmask;
+
+ maxpad += SHA256_DIGEST_LENGTH;
+ for (res = 0, i = 0, j = 0; j < maxpad; j++) {
+ c = p[j];
+ cmask =
+ ((int)(j - off - SHA256_DIGEST_LENGTH)) >>
+ (sizeof(int) * 8 - 1);
+ res |= (c ^ pad) & ~cmask; /* ... and padding */
+ cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1);
+ res |= (c ^ pmac->c[i]) & cmask;
+ i += 1 & cmask;
+ }
+ maxpad -= SHA256_DIGEST_LENGTH;
+
+ res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
+ ret &= (int)~res;
+ }
+# else
+ for (res = 0, i = 0; i < SHA256_DIGEST_LENGTH; i++)
+ res |= out[i] ^ pmac->c[i];
+ res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
+ ret &= (int)~res;
+
+ /* verify padding */
+ pad = (pad & ~res) | (maxpad & res);
+ out = out + len - 1 - pad;
+ for (res = 0, i = 0; i < pad; i++)
+ res |= out[i] ^ pad;
+
+ res = (0 - res) >> (sizeof(res) * 8 - 1);
+ ret &= (int)~res;
+# endif
+ return ret;
+ } else {
+ SHA256_Update(&key->md, out, len);
+ }
+ }
+
+ return 1;
+}
- key->payload_length = NO_PAYLOAD_LENGTH;
-
- if (len%AES_BLOCK_SIZE) return 0;
-
- if (ctx->encrypt) {
- if (plen==NO_PAYLOAD_LENGTH)
- plen = len;
- else if (len!=((plen+SHA256_DIGEST_LENGTH+AES_BLOCK_SIZE)&-AES_BLOCK_SIZE))
- return 0;
- else if (key->aux.tls_ver >= TLS1_1_VERSION)
- iv = AES_BLOCK_SIZE;
-
-#if defined(STITCHED_CALL)
- if (OPENSSL_ia32cap_P[1]&(1<<(60-32)) && /* AVX? */
- plen>(sha_off+iv) &&
- (blocks=(plen-(sha_off+iv))/SHA256_CBLOCK)) {
- SHA256_Update(&key->md,in+iv,sha_off);
-
- (void)aesni_cbc_sha256_enc(in,out,blocks,&key->ks,
- ctx->iv,&key->md,in+iv+sha_off);
- blocks *= SHA256_CBLOCK;
- aes_off += blocks;
- sha_off += blocks;
- key->md.Nh += blocks>>29;
- key->md.Nl += blocks<<=3;
- if (key->md.Nl<(unsigned int)blocks) key->md.Nh++;
- } else {
- sha_off = 0;
- }
-#endif
- sha_off += iv;
- SHA256_Update(&key->md,in+sha_off,plen-sha_off);
-
- if (plen!=len) { /* "TLS" mode of operation */
- if (in!=out)
- memcpy(out+aes_off,in+aes_off,plen-aes_off);
-
- /* calculate HMAC and append it to payload */
- SHA256_Final(out+plen,&key->md);
- key->md = key->tail;
- SHA256_Update(&key->md,out+plen,SHA256_DIGEST_LENGTH);
- SHA256_Final(out+plen,&key->md);
-
- /* pad the payload|hmac */
- plen += SHA256_DIGEST_LENGTH;
- for (l=len-plen-1;plen<len;plen++) out[plen]=l;
- /* encrypt HMAC|padding at once */
- aesni_cbc_encrypt(out+aes_off,out+aes_off,len-aes_off,
- &key->ks,ctx->iv,1);
- } else {
- aesni_cbc_encrypt(in+aes_off,out+aes_off,len-aes_off,
- &key->ks,ctx->iv,1);
- }
- } else {
- union { unsigned int u[SHA256_DIGEST_LENGTH/sizeof(unsigned int)];
- unsigned char c[64+SHA256_DIGEST_LENGTH]; } mac, *pmac;
-
- /* arrange cache line alignment */
- pmac = (void *)(((size_t)mac.c+63)&((size_t)0-64));
-
- /* decrypt HMAC|padding at once */
- aesni_cbc_encrypt(in,out,len,
- &key->ks,ctx->iv,0);
-
- if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */
- size_t inp_len, mask, j, i;
- unsigned int res, maxpad, pad, bitlen;
- int ret = 1;
- union { unsigned int u[SHA_LBLOCK];
- unsigned char c[SHA256_CBLOCK]; }
- *data = (void *)key->md.data;
-
- if ((key->aux.tls_aad[plen-4]<<8|key->aux.tls_aad[plen-3])
- >= TLS1_1_VERSION)
- iv = AES_BLOCK_SIZE;
-
- if (len<(iv+SHA256_DIGEST_LENGTH+1))
- return 0;
-
- /* omit explicit iv */
- out += iv;
- len -= iv;
-
- /* figure out payload length */
- pad = out[len-1];
- maxpad = len-(SHA256_DIGEST_LENGTH+1);
- maxpad |= (255-maxpad)>>(sizeof(maxpad)*8-8);
- maxpad &= 255;
-
- inp_len = len - (SHA256_DIGEST_LENGTH+pad+1);
- mask = (0-((inp_len-len)>>(sizeof(inp_len)*8-1)));
- inp_len &= mask;
- ret &= (int)mask;
-
- key->aux.tls_aad[plen-2] = inp_len>>8;
- key->aux.tls_aad[plen-1] = inp_len;
-
- /* calculate HMAC */
- key->md = key->head;
- SHA256_Update(&key->md,key->aux.tls_aad,plen);
-
-#if 1
- len -= SHA256_DIGEST_LENGTH; /* amend mac */
- if (len>=(256+SHA256_CBLOCK)) {
- j = (len-(256+SHA256_CBLOCK))&(0-SHA256_CBLOCK);
- j += SHA256_CBLOCK-key->md.num;
- SHA256_Update(&key->md,out,j);
- out += j;
- len -= j;
- inp_len -= j;
- }
-
- /* but pretend as if we hashed padded payload */
- bitlen = key->md.Nl+(inp_len<<3); /* at most 18 bits */
-#ifdef BSWAP4
- bitlen = BSWAP4(bitlen);
-#else
- mac.c[0] = 0;
- mac.c[1] = (unsigned char)(bitlen>>16);
- mac.c[2] = (unsigned char)(bitlen>>8);
- mac.c[3] = (unsigned char)bitlen;
- bitlen = mac.u[0];
-#endif
+static int aesni_cbc_hmac_sha256_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr)
+{
+ EVP_AES_HMAC_SHA256 *key = data(ctx);
+
+ switch (type) {
+ case EVP_CTRL_AEAD_SET_MAC_KEY:
+ {
+ unsigned int i;
+ unsigned char hmac_key[64];
+
+ memset(hmac_key, 0, sizeof(hmac_key));
+
+ if (arg > (int)sizeof(hmac_key)) {
+ SHA256_Init(&key->head);
+ SHA256_Update(&key->head, ptr, arg);
+ SHA256_Final(hmac_key, &key->head);
+ } else {
+ memcpy(hmac_key, ptr, arg);
+ }
+
+ for (i = 0; i < sizeof(hmac_key); i++)
+ hmac_key[i] ^= 0x36; /* ipad */
+ SHA256_Init(&key->head);
+ SHA256_Update(&key->head, hmac_key, sizeof(hmac_key));
+
+ for (i = 0; i < sizeof(hmac_key); i++)
+ hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */
+ SHA256_Init(&key->tail);
+ SHA256_Update(&key->tail, hmac_key, sizeof(hmac_key));
+
+ OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
+
+ return 1;
+ }
+ case EVP_CTRL_AEAD_TLS1_AAD:
+ {
+ unsigned char *p = ptr;
+ unsigned int len = p[arg - 2] << 8 | p[arg - 1];
+
+ if (arg != EVP_AEAD_TLS1_AAD_LEN)
+ return -1;
+
+ len = p[arg - 2] << 8 | p[arg - 1];
+
+ if (ctx->encrypt) {
+ key->payload_length = len;
+ if ((key->aux.tls_ver =
+ p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
+ len -= AES_BLOCK_SIZE;
+ p[arg - 2] = len >> 8;
+ p[arg - 1] = len;
+ }
+ key->md = key->head;
+ SHA256_Update(&key->md, p, arg);
+
+ return (int)(((len + SHA256_DIGEST_LENGTH +
+ AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)
+ - len);
+ } else {
+ memcpy(key->aux.tls_aad, ptr, arg);
+ key->payload_length = arg;
+
+ return SHA256_DIGEST_LENGTH;
+ }
+ }
+# if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
+ case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE:
+ return (int)(5 + 16 + ((arg + 32 + 16) & -16));
+ case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD:
+ {
+ EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
+ (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr;
+ unsigned int n4x = 1, x4;
+ unsigned int frag, last, packlen, inp_len;
+
+ if (arg < (int)sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM))
+ return -1;
+
+ inp_len = param->inp[11] << 8 | param->inp[12];
+
+ if (ctx->encrypt) {
+ if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION)
+ return -1;
+
+ if (inp_len) {
+ if (inp_len < 4096)
+ return 0; /* too short */
+
+ if (inp_len >= 8192 && OPENSSL_ia32cap_P[2] & (1 << 5))
+ n4x = 2; /* AVX2 */
+ } else if ((n4x = param->interleave / 4) && n4x <= 2)
+ inp_len = param->len;
+ else
+ return -1;
+
+ key->md = key->head;
+ SHA256_Update(&key->md, param->inp, 13);
+
+ x4 = 4 * n4x;
+ n4x += 1;
+
+ frag = inp_len >> n4x;
+ last = inp_len + frag - (frag << n4x);
+ if (last > frag && ((last + 13 + 9) % 64 < (x4 - 1))) {
+ frag++;
+ last -= x4 - 1;
+ }
+
+ packlen = 5 + 16 + ((frag + 32 + 16) & -16);
+ packlen = (packlen << n4x) - packlen;
+ packlen += 5 + 16 + ((last + 32 + 16) & -16);
+
+ param->interleave = x4;
+
+ return (int)packlen;
+ } else
+ return -1; /* not yet */
+ }
+ case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT:
+ {
+ EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
+ (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr;
+
+ return (int)tls1_1_multi_block_encrypt(key, param->out,
+ param->inp, param->len,
+ param->interleave / 4);
+ }
+ case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT:
+# endif
+ default:
+ return -1;
+ }
+}
- pmac->u[0]=0;
- pmac->u[1]=0;
- pmac->u[2]=0;
- pmac->u[3]=0;
- pmac->u[4]=0;
- pmac->u[5]=0;
- pmac->u[6]=0;
- pmac->u[7]=0;
-
- for (res=key->md.num, j=0;j<len;j++) {
- size_t c = out[j];
- mask = (j-inp_len)>>(sizeof(j)*8-8);
- c &= mask;
- c |= 0x80&~mask&~((inp_len-j)>>(sizeof(j)*8-8));
- data->c[res++]=(unsigned char)c;
-
- if (res!=SHA256_CBLOCK) continue;
-
- /* j is not incremented yet */
- mask = 0-((inp_len+7-j)>>(sizeof(j)*8-1));
- data->u[SHA_LBLOCK-1] |= bitlen&mask;
- sha256_block_data_order(&key->md,data,1);
- mask &= 0-((j-inp_len-72)>>(sizeof(j)*8-1));
- pmac->u[0] |= key->md.h[0] & mask;
- pmac->u[1] |= key->md.h[1] & mask;
- pmac->u[2] |= key->md.h[2] & mask;
- pmac->u[3] |= key->md.h[3] & mask;
- pmac->u[4] |= key->md.h[4] & mask;
- pmac->u[5] |= key->md.h[5] & mask;
- pmac->u[6] |= key->md.h[6] & mask;
- pmac->u[7] |= key->md.h[7] & mask;
- res=0;
- }
-
- for(i=res;i<SHA256_CBLOCK;i++,j++) data->c[i]=0;
-
- if (res>SHA256_CBLOCK-8) {
- mask = 0-((inp_len+8-j)>>(sizeof(j)*8-1));
- data->u[SHA_LBLOCK-1] |= bitlen&mask;
- sha256_block_data_order(&key->md,data,1);
- mask &= 0-((j-inp_len-73)>>(sizeof(j)*8-1));
- pmac->u[0] |= key->md.h[0] & mask;
- pmac->u[1] |= key->md.h[1] & mask;
- pmac->u[2] |= key->md.h[2] & mask;
- pmac->u[3] |= key->md.h[3] & mask;
- pmac->u[4] |= key->md.h[4] & mask;
- pmac->u[5] |= key->md.h[5] & mask;
- pmac->u[6] |= key->md.h[6] & mask;
- pmac->u[7] |= key->md.h[7] & mask;
-
- memset(data,0,SHA256_CBLOCK);
- j+=64;
- }
- data->u[SHA_LBLOCK-1] = bitlen;
- sha256_block_data_order(&key->md,data,1);
- mask = 0-((j-inp_len-73)>>(sizeof(j)*8-1));
- pmac->u[0] |= key->md.h[0] & mask;
- pmac->u[1] |= key->md.h[1] & mask;
- pmac->u[2] |= key->md.h[2] & mask;
- pmac->u[3] |= key->md.h[3] & mask;
- pmac->u[4] |= key->md.h[4] & mask;
- pmac->u[5] |= key->md.h[5] & mask;
- pmac->u[6] |= key->md.h[6] & mask;
- pmac->u[7] |= key->md.h[7] & mask;
-
-#ifdef BSWAP4
- pmac->u[0] = BSWAP4(pmac->u[0]);
- pmac->u[1] = BSWAP4(pmac->u[1]);
- pmac->u[2] = BSWAP4(pmac->u[2]);
- pmac->u[3] = BSWAP4(pmac->u[3]);
- pmac->u[4] = BSWAP4(pmac->u[4]);
- pmac->u[5] = BSWAP4(pmac->u[5]);
- pmac->u[6] = BSWAP4(pmac->u[6]);
- pmac->u[7] = BSWAP4(pmac->u[7]);
-#else
- for (i=0;i<8;i++) {
- res = pmac->u[i];
- pmac->c[4*i+0]=(unsigned char)(res>>24);
- pmac->c[4*i+1]=(unsigned char)(res>>16);
- pmac->c[4*i+2]=(unsigned char)(res>>8);
- pmac->c[4*i+3]=(unsigned char)res;
- }
-#endif
- len += SHA256_DIGEST_LENGTH;
-#else
- SHA256_Update(&key->md,out,inp_len);
- res = key->md.num;
- SHA256_Final(pmac->c,&key->md);
-
- {
- unsigned int inp_blocks, pad_blocks;
-
- /* but pretend as if we hashed padded payload */
- inp_blocks = 1+((SHA256_CBLOCK-9-res)>>(sizeof(res)*8-1));
- res += (unsigned int)(len-inp_len);
- pad_blocks = res / SHA256_CBLOCK;
- res %= SHA256_CBLOCK;
- pad_blocks += 1+((SHA256_CBLOCK-9-res)>>(sizeof(res)*8-1));
- for (;inp_blocks<pad_blocks;inp_blocks++)
- sha1_block_data_order(&key->md,data,1);
- }
-#endif
- key->md = key->tail;
- SHA256_Update(&key->md,pmac->c,SHA256_DIGEST_LENGTH);
- SHA256_Final(pmac->c,&key->md);
-
- /* verify HMAC */
- out += inp_len;
- len -= inp_len;
-#if 1
- {
- unsigned char *p = out+len-1-maxpad-SHA256_DIGEST_LENGTH;
- size_t off = out-p;
- unsigned int c, cmask;
-
- maxpad += SHA256_DIGEST_LENGTH;
- for (res=0,i=0,j=0;j<maxpad;j++) {
- c = p[j];
- cmask = ((int)(j-off-SHA256_DIGEST_LENGTH))>>(sizeof(int)*8-1);
- res |= (c^pad)&~cmask; /* ... and padding */
- cmask &= ((int)(off-1-j))>>(sizeof(int)*8-1);
- res |= (c^pmac->c[i])&cmask;
- i += 1&cmask;
- }
- maxpad -= SHA256_DIGEST_LENGTH;
-
- res = 0-((0-res)>>(sizeof(res)*8-1));
- ret &= (int)~res;
- }
-#else
- for (res=0,i=0;i<SHA256_DIGEST_LENGTH;i++)
- res |= out[i]^pmac->c[i];
- res = 0-((0-res)>>(sizeof(res)*8-1));
- ret &= (int)~res;
-
- /* verify padding */
- pad = (pad&~res) | (maxpad&res);
- out = out+len-1-pad;
- for (res=0,i=0;i<pad;i++)
- res |= out[i]^pad;
-
- res = (0-res)>>(sizeof(res)*8-1);
- ret &= (int)~res;
-#endif
- return ret;
- } else {
- SHA256_Update(&key->md,out,len);
- }
- }
-
- return 1;
- }
-
-static int aesni_cbc_hmac_sha256_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
- {
- EVP_AES_HMAC_SHA256 *key = data(ctx);
-
- switch (type)
- {
- case EVP_CTRL_AEAD_SET_MAC_KEY:
- {
- unsigned int i;
- unsigned char hmac_key[64];
-
- memset (hmac_key,0,sizeof(hmac_key));
-
- if (arg > (int)sizeof(hmac_key)) {
- SHA256_Init(&key->head);
- SHA256_Update(&key->head,ptr,arg);
- SHA256_Final(hmac_key,&key->head);
- } else {
- memcpy(hmac_key,ptr,arg);
- }
-
- for (i=0;i<sizeof(hmac_key);i++)
- hmac_key[i] ^= 0x36; /* ipad */
- SHA256_Init(&key->head);
- SHA256_Update(&key->head,hmac_key,sizeof(hmac_key));
-
- for (i=0;i<sizeof(hmac_key);i++)
- hmac_key[i] ^= 0x36^0x5c; /* opad */
- SHA256_Init(&key->tail);
- SHA256_Update(&key->tail,hmac_key,sizeof(hmac_key));
-
- OPENSSL_cleanse(hmac_key,sizeof(hmac_key));
-
- return 1;
- }
- case EVP_CTRL_AEAD_TLS1_AAD:
- {
- unsigned char *p=ptr;
- unsigned int len=p[arg-2]<<8|p[arg-1];
-
- if (ctx->encrypt)
- {
- key->payload_length = len;
- if ((key->aux.tls_ver=p[arg-4]<<8|p[arg-3]) >= TLS1_1_VERSION) {
- len -= AES_BLOCK_SIZE;
- p[arg-2] = len>>8;
- p[arg-1] = len;
- }
- key->md = key->head;
- SHA256_Update(&key->md,p,arg);
-
- return (int)(((len+SHA256_DIGEST_LENGTH+AES_BLOCK_SIZE)&-AES_BLOCK_SIZE)
- - len);
- }
- else
- {
- if (arg>13) arg = 13;
- memcpy(key->aux.tls_aad,ptr,arg);
- key->payload_length = arg;
-
- return SHA256_DIGEST_LENGTH;
- }
- }
-#if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
- case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE:
- return (int)(5+16+((arg+32+16)&-16));
- case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD:
- {
- EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
- (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *)ptr;
- unsigned int n4x=1, x4;
- unsigned int frag, last, packlen, inp_len;
-
- if (arg<(int)sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM)) return -1;
-
- inp_len = param->inp[11]<<8|param->inp[12];
-
- if (ctx->encrypt)
- {
- if ((param->inp[9]<<8|param->inp[10]) < TLS1_1_VERSION)
- return -1;
-
- if (inp_len)
- {
- if (inp_len<4096) return 0; /* too short */
-
- if (inp_len>=8192 && OPENSSL_ia32cap_P[2]&(1<<5))
- n4x=2; /* AVX2 */
- }
- else if ((n4x=param->interleave/4) && n4x<=2)
- inp_len = param->len;
- else
- return -1;
-
- key->md = key->head;
- SHA256_Update(&key->md,param->inp,13);
-
- x4 = 4*n4x; n4x += 1;
-
- frag = inp_len>>n4x;
- last = inp_len+frag-(frag<<n4x);
- if (last>frag && ((last+13+9)%64<(x4-1))) {
- frag++;
- last -= x4-1;
- }
-
- packlen = 5+16+((frag+32+16)&-16);
- packlen = (packlen<<n4x)-packlen;
- packlen += 5+16+((last+32+16)&-16);
-
- param->interleave = x4;
-
- return (int)packlen;
- }
- else
- return -1; /* not yet */
- }
- case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT:
- {
- EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
- (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *)ptr;
-
- return (int)tls1_1_multi_block_encrypt(key,param->out,param->inp,
- param->len,param->interleave/4);
- }
- case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT:
-#endif
- default:
- return -1;
- }
- }
-
-static EVP_CIPHER aesni_128_cbc_hmac_sha256_cipher =
- {
-#ifdef NID_aes_128_cbc_hmac_sha256
- NID_aes_128_cbc_hmac_sha256,
-#else
- NID_undef,
-#endif
- 16,16,16,
- EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|
- EVP_CIPH_FLAG_AEAD_CIPHER|EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
- aesni_cbc_hmac_sha256_init_key,
- aesni_cbc_hmac_sha256_cipher,
- NULL,
- sizeof(EVP_AES_HMAC_SHA256),
- EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_set_asn1_iv,
- EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_get_asn1_iv,
- aesni_cbc_hmac_sha256_ctrl,
- NULL
- };
-
-static EVP_CIPHER aesni_256_cbc_hmac_sha256_cipher =
- {
-#ifdef NID_aes_256_cbc_hmac_sha256
- NID_aes_256_cbc_hmac_sha256,
-#else
- NID_undef,
-#endif
- 16,32,16,
- EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|
- EVP_CIPH_FLAG_AEAD_CIPHER|EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
- aesni_cbc_hmac_sha256_init_key,
- aesni_cbc_hmac_sha256_cipher,
- NULL,
- sizeof(EVP_AES_HMAC_SHA256),
- EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_set_asn1_iv,
- EVP_CIPH_FLAG_DEFAULT_ASN1?NULL:EVP_CIPHER_get_asn1_iv,
- aesni_cbc_hmac_sha256_ctrl,
- NULL
- };
+static EVP_CIPHER aesni_128_cbc_hmac_sha256_cipher = {
+# ifdef NID_aes_128_cbc_hmac_sha256
+ NID_aes_128_cbc_hmac_sha256,
+# else
+ NID_undef,
+# endif
+ 16, 16, 16,
+ EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
+ EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
+ aesni_cbc_hmac_sha256_init_key,
+ aesni_cbc_hmac_sha256_cipher,
+ NULL,
+ sizeof(EVP_AES_HMAC_SHA256),
+ EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv,
+ EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv,
+ aesni_cbc_hmac_sha256_ctrl,
+ NULL
+};
+
+static EVP_CIPHER aesni_256_cbc_hmac_sha256_cipher = {
+# ifdef NID_aes_256_cbc_hmac_sha256
+ NID_aes_256_cbc_hmac_sha256,
+# else
+ NID_undef,
+# endif
+ 16, 32, 16,
+ EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
+ EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
+ aesni_cbc_hmac_sha256_init_key,
+ aesni_cbc_hmac_sha256_cipher,
+ NULL,
+ sizeof(EVP_AES_HMAC_SHA256),
+ EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv,
+ EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv,
+ aesni_cbc_hmac_sha256_ctrl,
+ NULL
+};
const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void)
- {
- return((OPENSSL_ia32cap_P[1]&AESNI_CAPABLE) &&
- aesni_cbc_sha256_enc(NULL,NULL,0,NULL,NULL,NULL,NULL) ?
- &aesni_128_cbc_hmac_sha256_cipher:NULL);
- }
+{
+ return ((OPENSSL_ia32cap_P[1] & AESNI_CAPABLE) &&
+ aesni_cbc_sha256_enc(NULL, NULL, 0, NULL, NULL, NULL, NULL) ?
+ &aesni_128_cbc_hmac_sha256_cipher : NULL);
+}
const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void)
- {
- return((OPENSSL_ia32cap_P[1]&AESNI_CAPABLE) &&
- aesni_cbc_sha256_enc(NULL,NULL,0,NULL,NULL,NULL,NULL)?
- &aesni_256_cbc_hmac_sha256_cipher:NULL);
- }
-#else
+{
+ return ((OPENSSL_ia32cap_P[1] & AESNI_CAPABLE) &&
+ aesni_cbc_sha256_enc(NULL, NULL, 0, NULL, NULL, NULL, NULL) ?
+ &aesni_256_cbc_hmac_sha256_cipher : NULL);
+}
+# else
const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void)
- {
- return NULL;
- }
+{
+ return NULL;
+}
+
const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void)
- {
- return NULL;
- }
-#endif
+{
+ return NULL;
+}
+# endif
#endif
projects / openssl.git / blobdiff