#include <stdio.h>
#include <string.h>
-#if !defined(OPENSSL_NO_AES)
-
-# 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
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/aes.h>
+#include <openssl/sha.h>
+#include <openssl/rand.h>
+#include "modes_lcl.h"
+#include "internal/evp_int.h"
+#include "internal/constant_time_locl.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_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
+#if !defined(EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK)
+# define EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0
+#endif
-# define TLS1_1_VERSION 0x0302
+#define TLS1_1_VERSION 0x0302
typedef struct {
AES_KEY ks;
} aux;
} EVP_AES_HMAC_SHA1;
-# define NO_PAYLOAD_LENGTH ((size_t)-1)
+#define NO_PAYLOAD_LENGTH ((size_t)-1)
-# if defined(AES_ASM) && ( \
+#if defined(AES_ASM) && ( \
defined(__x86_64) || defined(__x86_64__) || \
- defined(_M_AMD64) || defined(_M_X64) || \
- defined(__INTEL__) )
+ defined(_M_AMD64) || defined(_M_X64) )
-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);
const AES_KEY *key, unsigned char iv[16],
SHA_CTX *ctx, const void *in0);
-# define data(ctx) ((EVP_AES_HMAC_SHA1 *)(ctx)->cipher_data)
+# define data(ctx) ((EVP_AES_HMAC_SHA1 *)EVP_CIPHER_CTX_get_cipher_data(ctx))
static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
const unsigned char *inkey,
int ret;
if (enc)
- ret = aesni_set_encrypt_key(inkey, ctx->key_len * 8, &key->ks);
+ ret = aesni_set_encrypt_key(inkey,
+ EVP_CIPHER_CTX_key_length(ctx) * 8,
+ &key->ks);
else
- ret = aesni_set_decrypt_key(inkey, ctx->key_len * 8, &key->ks);
+ ret = aesni_set_decrypt_key(inkey,
+ EVP_CIPHER_CTX_key_length(ctx) * 8,
+ &key->ks);
SHA1_Init(&key->head); /* handy when benchmarking */
key->tail = key->head;
return ret < 0 ? 0 : 1;
}
-# define STITCHED_CALL
-# undef STITCHED_DECRYPT_CALL
+# define STITCHED_CALL
+# undef STITCHED_DECRYPT_CALL
-# if !defined(STITCHED_CALL)
-# define aes_off 0
-# endif
+# if !defined(STITCHED_CALL)
+# define aes_off 0
+# endif
void sha1_block_data_order(void *c, const void *p, size_t len);
SHA1_Update(c, ptr, res);
}
-# ifdef SHA1_Update
-# undef SHA1_Update
-# endif
-# define SHA1_Update sha1_update
+# ifdef SHA1_Update
+# undef SHA1_Update
+# endif
+# define SHA1_Update sha1_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];
0;
size_t ret = 0;
u8 *IVs;
-# if defined(BSWAP8)
+# if defined(BSWAP8)
u64 seqnum;
-# endif
+# endif
/* ask for IVs in bulk */
if (RAND_bytes((IVs = blocks[0].c), 16 * x4) <= 0)
IVs += 16;
}
-# if defined(BSWAP8)
+# if defined(BSWAP8)
memcpy(blocks[0].c, key->md.data, 8);
seqnum = BSWAP8(blocks[0].q[0]);
-# endif
+# endif
for (i = 0; i < x4; i++) {
unsigned int len = (i == (x4 - 1) ? last : frag);
-# if !defined(BSWAP8)
+# if !defined(BSWAP8)
unsigned int carry, j;
-# endif
+# endif
ctx->A[i] = key->md.h0;
ctx->B[i] = key->md.h1;
ctx->E[i] = key->md.h4;
/* fix seqnum */
-# if defined(BSWAP8)
+# if defined(BSWAP8)
blocks[i].q[0] = BSWAP8(seqnum + i);
-# else
+# 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
+# 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];
/* hash 13-byte headers and first 64-13 bytes of inputs */
sha1_multi_block(ctx, edges, n4x);
/* hash bulk inputs */
-# define MAXCHUNKSIZE 2048
-# if MAXCHUNKSIZE%64
-# error "MAXCHUNKSIZE is not divisible by 64"
-# elif MAXCHUNKSIZE
+# 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 -= MAXCHUNKSIZE / 64;
} while (minblocks > MAXCHUNKSIZE / 64);
}
-# endif
-# undef MAXCHUNKSIZE
+# endif
+# undef MAXCHUNKSIZE
sha1_multi_block(ctx, hash_d, n4x);
memset(blocks, 0, sizeof(blocks));
len += 64 + 13; /* 64 is HMAC header */
len *= 8; /* convert to bits */
if (off < (64 - 8)) {
-# ifdef BSWAP4
+# ifdef BSWAP4
blocks[i].d[15] = BSWAP4(len);
-# else
+# else
PUTU32(blocks[i].c + 60, len);
-# endif
+# endif
edges[i].blocks = 1;
} else {
-# ifdef BSWAP4
+# ifdef BSWAP4
blocks[i].d[31] = BSWAP4(len);
-# else
+# else
PUTU32(blocks[i].c + 124, len);
-# endif
+# endif
edges[i].blocks = 2;
}
edges[i].ptr = blocks[i].c;
memset(blocks, 0, sizeof(blocks));
for (i = 0; i < x4; i++) {
-# ifdef BSWAP4
+# ifdef BSWAP4
blocks[i].d[0] = BSWAP4(ctx->A[i]);
ctx->A[i] = key->tail.h0;
blocks[i].d[1] = BSWAP4(ctx->B[i]);
ctx->E[i] = key->tail.h4;
blocks[i].c[20] = 0x80;
blocks[i].d[15] = BSWAP4((64 + 20) * 8);
-# else
+# else
PUTU32(blocks[i].c + 0, ctx->A[i]);
ctx->A[i] = key->tail.h0;
PUTU32(blocks[i].c + 4, ctx->B[i]);
ctx->E[i] = key->tail.h4;
blocks[i].c[20] = 0x80;
PUTU32(blocks[i].c + 60, (64 + 20) * 8);
-# endif
+# endif
edges[i].ptr = blocks[i].c;
edges[i].blocks = 1;
}
return ret;
}
-# endif
+# endif
static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and
* later */
sha_off = 0;
-# if defined(STITCHED_CALL)
+# if defined(STITCHED_CALL)
size_t aes_off = 0, blocks;
sha_off = SHA_CBLOCK - key->md.num;
-# endif
+# endif
key->payload_length = NO_PAYLOAD_LENGTH;
if (len % AES_BLOCK_SIZE)
return 0;
- if (ctx->encrypt) {
+ if (EVP_CIPHER_CTX_encrypting(ctx)) {
if (plen == NO_PAYLOAD_LENGTH)
plen = len;
else if (len !=
else if (key->aux.tls_ver >= TLS1_1_VERSION)
iv = AES_BLOCK_SIZE;
-# if defined(STITCHED_CALL)
+# if defined(STITCHED_CALL)
if (plen > (sha_off + iv)
&& (blocks = (plen - (sha_off + iv)) / SHA_CBLOCK)) {
SHA1_Update(&key->md, in + iv, sha_off);
aesni_cbc_sha1_enc(in, out, blocks, &key->ks,
- ctx->iv, &key->md, in + iv + sha_off);
+ EVP_CIPHER_CTX_iv_noconst(ctx),
+ &key->md, in + iv + sha_off);
blocks *= SHA_CBLOCK;
aes_off += blocks;
sha_off += blocks;
} else {
sha_off = 0;
}
-# endif
+# endif
sha_off += iv;
SHA1_Update(&key->md, in + sha_off, plen - sha_off);
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);
+ &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1);
} else {
aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off,
- &key->ks, ctx->iv, 1);
+ &key->ks, EVP_CIPHER_CTX_iv_noconst(ctx), 1);
}
} else {
union {
unsigned int u[SHA_LBLOCK];
unsigned char c[SHA_CBLOCK];
} *data = (void *)key->md.data;
-# if defined(STITCHED_DECRYPT_CALL)
+# if defined(STITCHED_DECRYPT_CALL)
unsigned char tail_iv[AES_BLOCK_SIZE];
int stitch = 0;
-# endif
+# endif
if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3])
>= TLS1_1_VERSION) {
return 0;
/* omit explicit iv */
- memcpy(ctx->iv, in, AES_BLOCK_SIZE);
+ memcpy(EVP_CIPHER_CTX_iv_noconst(ctx), in, AES_BLOCK_SIZE);
+
in += AES_BLOCK_SIZE;
out += AES_BLOCK_SIZE;
len -= AES_BLOCK_SIZE;
} else if (len < (SHA_DIGEST_LENGTH + 1))
return 0;
-# if defined(STITCHED_DECRYPT_CALL)
+# if defined(STITCHED_DECRYPT_CALL)
if (len >= 1024 && ctx->key_len == 32) {
/* decrypt last block */
memcpy(tail_iv, in + len - 2 * AES_BLOCK_SIZE,
&key->ks, tail_iv, 0);
stitch = 1;
} else
-# endif
+# endif
/* decrypt HMAC|padding at once */
- aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0);
+ aesni_cbc_encrypt(in, out, len, &key->ks,
+ EVP_CIPHER_CTX_iv_noconst(ctx), 0);
/* figure out payload length */
pad = out[len - 1];
maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8);
maxpad &= 255;
+ ret &= constant_time_ge(maxpad, pad);
+
inp_len = len - (SHA_DIGEST_LENGTH + pad + 1);
mask = (0 - ((inp_len - len) >> (sizeof(inp_len) * 8 - 1)));
inp_len &= mask;
key->md = key->head;
SHA1_Update(&key->md, key->aux.tls_aad, plen);
-# if defined(STITCHED_DECRYPT_CALL)
+# if defined(STITCHED_DECRYPT_CALL)
if (stitch) {
blocks = (len - (256 + 32 + SHA_CBLOCK)) / SHA_CBLOCK;
aes_off = len - AES_BLOCK_SIZE - blocks * SHA_CBLOCK;
key->md.Nl += (blocks << 3); /* at most 18 bits */
memcpy(ctx->iv, tail_iv, AES_BLOCK_SIZE);
}
-# endif
+# endif
-# if 1
+# if 1
len -= SHA_DIGEST_LENGTH; /* amend mac */
if (len >= (256 + SHA_CBLOCK)) {
j = (len - (256 + SHA_CBLOCK)) & (0 - SHA_CBLOCK);
/* but pretend as if we hashed padded payload */
bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */
-# ifdef BSWAP4
+# ifdef BSWAP4
bitlen = BSWAP4(bitlen);
-# else
+# 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
+# endif
pmac->u[0] = 0;
pmac->u[1] = 0;
pmac->u[3] |= key->md.h3 & mask;
pmac->u[4] |= key->md.h4 & mask;
-# ifdef BSWAP4
+# 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]);
-# else
+# else
for (i = 0; i < 5; i++) {
res = pmac->u[i];
pmac->c[4 * i + 0] = (unsigned char)(res >> 24);
pmac->c[4 * i + 2] = (unsigned char)(res >> 8);
pmac->c[4 * i + 3] = (unsigned char)res;
}
-# endif
+# endif
len += SHA_DIGEST_LENGTH;
-# else
+# else
SHA1_Update(&key->md, out, inp_len);
res = key->md.num;
SHA1_Final(pmac->c, &key->md);
for (; inp_blocks < pad_blocks; inp_blocks++)
sha1_block_data_order(&key->md, data, 1);
}
-# endif
+# endif
key->md = key->tail;
SHA1_Update(&key->md, pmac->c, SHA_DIGEST_LENGTH);
SHA1_Final(pmac->c, &key->md);
/* verify HMAC */
out += inp_len;
len -= inp_len;
-# if 1
+# if 1
{
unsigned char *p = out + len - 1 - maxpad - SHA_DIGEST_LENGTH;
size_t off = out - p;
res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
ret &= (int)~res;
}
-# else
+# else
for (res = 0, i = 0; i < SHA_DIGEST_LENGTH; i++)
res |= out[i] ^ pmac->c[i];
res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
res = (0 - res) >> (sizeof(res) * 8 - 1);
ret &= (int)~res;
-# endif
+# endif
return ret;
} else {
-# if defined(STITCHED_DECRYPT_CALL)
+# if defined(STITCHED_DECRYPT_CALL)
if (len >= 1024 && ctx->key_len == 32) {
if (sha_off %= SHA_CBLOCK)
blocks = (len - 3 * SHA_CBLOCK) / SHA_CBLOCK;
if (key->md.Nl < (unsigned int)blocks)
key->md.Nh++;
} else
-# endif
+# endif
/* decrypt HMAC|padding at once */
- aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0);
+ aesni_cbc_encrypt(in, out, len, &key->ks,
+ EVP_CIPHER_CTX_iv_noconst(ctx), 0);
SHA1_Update(&key->md, out, len);
}
case EVP_CTRL_AEAD_TLS1_AAD:
{
unsigned char *p = ptr;
- unsigned int len = p[arg - 2] << 8 | p[arg - 1];
+ unsigned int len;
+
+ if (arg != EVP_AEAD_TLS1_AAD_LEN)
+ return -1;
+
+ len = p[arg - 2] << 8 | p[arg - 1];
- if (ctx->encrypt) {
+ if (EVP_CIPHER_CTX_encrypting(ctx)) {
key->payload_length = len;
if ((key->aux.tls_ver =
p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
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 SHA_DIGEST_LENGTH;
}
}
-# if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
+# if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE:
return (int)(5 + 16 + ((arg + 20 + 16) & -16));
case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD:
inp_len = param->inp[11] << 8 | param->inp[12];
- if (ctx->encrypt) {
+ if (EVP_CIPHER_CTX_encrypting(ctx)) {
if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION)
return -1;
param->interleave / 4);
}
case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT:
-# endif
+# endif
default:
return -1;
}
}
static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = {
-# ifdef NID_aes_128_cbc_hmac_sha1
+# ifdef NID_aes_128_cbc_hmac_sha1
NID_aes_128_cbc_hmac_sha1,
-# else
+# else
NID_undef,
-# endif
- 16, 16, 16,
+# endif
+ AES_BLOCK_SIZE, 16, AES_BLOCK_SIZE,
EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
aesni_cbc_hmac_sha1_init_key,
};
static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = {
-# ifdef NID_aes_256_cbc_hmac_sha1
+# ifdef NID_aes_256_cbc_hmac_sha1
NID_aes_256_cbc_hmac_sha1,
-# else
+# else
NID_undef,
-# endif
- 16, 32, 16,
+# endif
+ AES_BLOCK_SIZE, 32, AES_BLOCK_SIZE,
EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
aesni_cbc_hmac_sha1_init_key,
return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
&aesni_256_cbc_hmac_sha1_cipher : NULL);
}
-# else
+#else
const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
{
return NULL;
{
return NULL;
}
-# endif
#endif
projects / openssl.git / blobdiff