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-rw-r--r--crypto/evp/e_aes_cbc_hmac_sha1.c981
1 files changed, 498 insertions, 483 deletions
diff --git a/crypto/evp/e_aes_cbc_hmac_sha1.c b/crypto/evp/e_aes_cbc_hmac_sha1.c
index fb2c884a7860..3f8a5ae39129 100644
--- a/crypto/evp/e_aes_cbc_hmac_sha1.c
+++ b/crypto/evp/e_aes_cbc_hmac_sha1.c
@@ -54,528 +54,543 @@
#if !defined(OPENSSL_NO_AES) && !defined(OPENSSL_NO_SHA1)
-#include <openssl/evp.h>
-#include <openssl/objects.h>
-#include <openssl/aes.h>
-#include <openssl/sha.h>
-#include "evp_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
-
-#define TLS1_1_VERSION 0x0302
-
-typedef struct
- {
- AES_KEY ks;
- SHA_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 "evp_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
+
+# define TLS1_1_VERSION 0x0302
+
+typedef struct {
+ AES_KEY ks;
+ SHA_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_SHA1;
+} EVP_AES_HMAC_SHA1;
-#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__) )
-#if defined(__GNUC__) && __GNUC__>=2 && !defined(PEDANTIC)
-# define BSWAP(x) ({ unsigned int r=(x); asm ("bswapl %0":"=r"(r):"0"(r)); r; })
-#endif
+# if defined(__GNUC__) && __GNUC__>=2 && !defined(PEDANTIC)
+# define BSWAP(x) ({ unsigned int r=(x); asm ("bswapl %0":"=r"(r):"0"(r)); r; })
+# endif
extern unsigned int OPENSSL_ia32cap_P[2];
-#define AESNI_CAPABLE (1<<(57-32))
+# 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);
-void aesni_cbc_sha1_enc (const void *inp, void *out, size_t blocks,
- const AES_KEY *key, unsigned char iv[16],
- SHA_CTX *ctx,const void *in0);
+void aesni_cbc_sha1_enc(const void *inp, void *out, size_t blocks,
+ 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 *)(ctx)->cipher_data)
static int aesni_cbc_hmac_sha1_init_key(EVP_CIPHER_CTX *ctx,
- const unsigned char *inkey,
- const unsigned char *iv, int enc)
- {
- EVP_AES_HMAC_SHA1 *key = data(ctx);
- int ret;
+ const unsigned char *inkey,
+ const unsigned char *iv, int enc)
+{
+ EVP_AES_HMAC_SHA1 *key = data(ctx);
+ int ret;
- if (enc)
- 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);
+ if (enc)
+ 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);
- SHA1_Init(&key->head); /* handy when benchmarking */
- key->tail = key->head;
- key->md = key->head;
+ SHA1_Init(&key->head); /* handy when benchmarking */
+ key->tail = key->head;
+ key->md = key->head;
- key->payload_length = NO_PAYLOAD_LENGTH;
+ key->payload_length = NO_PAYLOAD_LENGTH;
- return ret<0?0:1;
- }
+ return ret < 0 ? 0 : 1;
+}
-#define STITCHED_CALL
+# define STITCHED_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);
+void sha1_block_data_order(void *c, const void *p, size_t len);
-static void sha1_update(SHA_CTX *c,const void *data,size_t len)
-{ const unsigned char *ptr = data;
- size_t res;
+static void sha1_update(SHA_CTX *c, const void *data, size_t len)
+{
+ const unsigned char *ptr = data;
+ size_t res;
- if ((res = c->num)) {
- res = SHA_CBLOCK-res;
- if (len<res) res=len;
- SHA1_Update (c,ptr,res);
- ptr += res;
- len -= res;
- }
+ if ((res = c->num)) {
+ res = SHA_CBLOCK - res;
+ if (len < res)
+ res = len;
+ SHA1_Update(c, ptr, res);
+ ptr += res;
+ len -= res;
+ }
- res = len % SHA_CBLOCK;
- len -= res;
+ res = len % SHA_CBLOCK;
+ len -= res;
- if (len) {
- sha1_block_data_order(c,ptr,len/SHA_CBLOCK);
+ if (len) {
+ sha1_block_data_order(c, ptr, len / SHA_CBLOCK);
- ptr += len;
- c->Nh += len>>29;
- c->Nl += len<<=3;
- if (c->Nl<(unsigned int)len) c->Nh++;
- }
+ ptr += len;
+ c->Nh += len >> 29;
+ c->Nl += len <<= 3;
+ if (c->Nl < (unsigned int)len)
+ c->Nh++;
+ }
- if (res)
- SHA1_Update(c,ptr,res);
+ if (res)
+ 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
static int aesni_cbc_hmac_sha1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len)
- {
- EVP_AES_HMAC_SHA1 *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 = SHA_CBLOCK-key->md.num;
-#endif
+ const unsigned char *in, size_t len)
+{
+ EVP_AES_HMAC_SHA1 *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 = SHA_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 + SHA_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 (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);
+ blocks *= SHA_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;
+ SHA1_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 */
+ SHA1_Final(out + plen, &key->md);
+ key->md = key->tail;
+ SHA1_Update(&key->md, out + plen, SHA_DIGEST_LENGTH);
+ SHA1_Final(out + plen, &key->md);
+
+ /* pad the payload|hmac */
+ plen += SHA_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[SHA_DIGEST_LENGTH / sizeof(unsigned int)];
+ unsigned char c[32 + SHA_DIGEST_LENGTH];
+ } mac, *pmac;
+
+ /* arrange cache line alignment */
+ pmac = (void *)(((size_t)mac.c + 31) & ((size_t)0 - 32));
+
+ /* decrypt HMAC|padding at once */
+ aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0);
+
+ if (plen) { /* "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[SHA_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 + SHA_DIGEST_LENGTH + 1))
+ return 0;
+
+ /* omit explicit iv */
+ out += iv;
+ len -= iv;
+
+ /* figure out payload length */
+ pad = out[len - 1];
+ maxpad = len - (SHA_DIGEST_LENGTH + 1);
+ maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8);
+ maxpad &= 255;
+
+ inp_len = len - (SHA_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;
+ SHA1_Update(&key->md, key->aux.tls_aad, plen);
+
+# if 1
+ len -= SHA_DIGEST_LENGTH; /* amend mac */
+ if (len >= (256 + SHA_CBLOCK)) {
+ j = (len - (256 + SHA_CBLOCK)) & (0 - SHA_CBLOCK);
+ j += SHA_CBLOCK - key->md.num;
+ SHA1_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 BSWAP
+ bitlen = BSWAP(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;
+
+ 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 != SHA_CBLOCK)
+ continue;
+
+ /* j is not incremented yet */
+ mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1));
+ data->u[SHA_LBLOCK - 1] |= bitlen & mask;
+ sha1_block_data_order(&key->md, data, 1);
+ mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1));
+ pmac->u[0] |= key->md.h0 & mask;
+ pmac->u[1] |= key->md.h1 & mask;
+ pmac->u[2] |= key->md.h2 & mask;
+ pmac->u[3] |= key->md.h3 & mask;
+ pmac->u[4] |= key->md.h4 & mask;
+ res = 0;
+ }
+
+ for (i = res; i < SHA_CBLOCK; i++, j++)
+ data->c[i] = 0;
+
+ if (res > SHA_CBLOCK - 8) {
+ mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1));
+ data->u[SHA_LBLOCK - 1] |= bitlen & mask;
+ sha1_block_data_order(&key->md, data, 1);
+ mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
+ pmac->u[0] |= key->md.h0 & mask;
+ pmac->u[1] |= key->md.h1 & mask;
+ pmac->u[2] |= key->md.h2 & mask;
+ pmac->u[3] |= key->md.h3 & mask;
+ pmac->u[4] |= key->md.h4 & mask;
+
+ memset(data, 0, SHA_CBLOCK);
+ j += 64;
+ }
+ data->u[SHA_LBLOCK - 1] = bitlen;
+ sha1_block_data_order(&key->md, data, 1);
+ mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
+ pmac->u[0] |= key->md.h0 & mask;
+ pmac->u[1] |= key->md.h1 & mask;
+ pmac->u[2] |= key->md.h2 & mask;
+ pmac->u[3] |= key->md.h3 & mask;
+ pmac->u[4] |= key->md.h4 & mask;
+
+# ifdef BSWAP
+ pmac->u[0] = BSWAP(pmac->u[0]);
+ pmac->u[1] = BSWAP(pmac->u[1]);
+ pmac->u[2] = BSWAP(pmac->u[2]);
+ pmac->u[3] = BSWAP(pmac->u[3]);
+ pmac->u[4] = BSWAP(pmac->u[4]);
+# else
+ for (i = 0; i < 5; 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 += SHA_DIGEST_LENGTH;
+# else
+ SHA1_Update(&key->md, out, inp_len);
+ res = key->md.num;
+ SHA1_Final(pmac->c, &key->md);
+
+ {
+ unsigned int inp_blocks, pad_blocks;
+
+ /* but pretend as if we hashed padded payload */
+ inp_blocks =
+ 1 + ((SHA_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
+ res += (unsigned int)(len - inp_len);
+ pad_blocks = res / SHA_CBLOCK;
+ res %= SHA_CBLOCK;
+ pad_blocks +=
+ 1 + ((SHA_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;
+ 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
+ {
+ unsigned char *p = out + len - 1 - maxpad - SHA_DIGEST_LENGTH;
+ size_t off = out - p;
+ unsigned int c, cmask;
+
+ maxpad += SHA_DIGEST_LENGTH;
+ for (res = 0, i = 0, j = 0; j < maxpad; j++) {
+ c = p[j];
+ cmask =
+ ((int)(j - off - SHA_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 -= SHA_DIGEST_LENGTH;
+
+ res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
+ ret &= (int)~res;
+ }
+# 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));
+ 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 {
+ SHA1_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+SHA_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 (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);
- blocks *= SHA_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;
- SHA1_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 */
- SHA1_Final(out+plen,&key->md);
- key->md = key->tail;
- SHA1_Update(&key->md,out+plen,SHA_DIGEST_LENGTH);
- SHA1_Final(out+plen,&key->md);
-
- /* pad the payload|hmac */
- plen += SHA_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[SHA_DIGEST_LENGTH/sizeof(unsigned int)];
- unsigned char c[32+SHA_DIGEST_LENGTH]; } mac, *pmac;
-
- /* arrange cache line alignment */
- pmac = (void *)(((size_t)mac.c+31)&((size_t)0-32));
-
- /* decrypt HMAC|padding at once */
- aesni_cbc_encrypt(in,out,len,
- &key->ks,ctx->iv,0);
-
- if (plen) { /* "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[SHA_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+SHA_DIGEST_LENGTH+1))
- return 0;
-
- /* omit explicit iv */
- out += iv;
- len -= iv;
-
- /* figure out payload length */
- pad = out[len-1];
- maxpad = len-(SHA_DIGEST_LENGTH+1);
- maxpad |= (255-maxpad)>>(sizeof(maxpad)*8-8);
- maxpad &= 255;
-
- inp_len = len - (SHA_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;
- SHA1_Update(&key->md,key->aux.tls_aad,plen);
-
-#if 1
- len -= SHA_DIGEST_LENGTH; /* amend mac */
- if (len>=(256+SHA_CBLOCK)) {
- j = (len-(256+SHA_CBLOCK))&(0-SHA_CBLOCK);
- j += SHA_CBLOCK-key->md.num;
- SHA1_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 BSWAP
- bitlen = BSWAP(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_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+ void *ptr)
+{
+ EVP_AES_HMAC_SHA1 *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)) {
+ SHA1_Init(&key->head);
+ SHA1_Update(&key->head, ptr, arg);
+ SHA1_Final(hmac_key, &key->head);
+ } else {
+ memcpy(hmac_key, ptr, arg);
+ }
+
+ for (i = 0; i < sizeof(hmac_key); i++)
+ hmac_key[i] ^= 0x36; /* ipad */
+ SHA1_Init(&key->head);
+ SHA1_Update(&key->head, hmac_key, sizeof(hmac_key));
+
+ for (i = 0; i < sizeof(hmac_key); i++)
+ hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */
+ SHA1_Init(&key->tail);
+ SHA1_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;
+ SHA1_Update(&key->md, p, arg);
+
+ return (int)(((len + SHA_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 SHA_DIGEST_LENGTH;
+ }
+ }
+ default:
+ return -1;
+ }
+}
- pmac->u[0]=0;
- pmac->u[1]=0;
- pmac->u[2]=0;
- pmac->u[3]=0;
- pmac->u[4]=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!=SHA_CBLOCK) continue;
-
- /* j is not incremented yet */
- mask = 0-((inp_len+7-j)>>(sizeof(j)*8-1));
- data->u[SHA_LBLOCK-1] |= bitlen&mask;
- sha1_block_data_order(&key->md,data,1);
- mask &= 0-((j-inp_len-72)>>(sizeof(j)*8-1));
- pmac->u[0] |= key->md.h0 & mask;
- pmac->u[1] |= key->md.h1 & mask;
- pmac->u[2] |= key->md.h2 & mask;
- pmac->u[3] |= key->md.h3 & mask;
- pmac->u[4] |= key->md.h4 & mask;
- res=0;
- }
-
- for(i=res;i<SHA_CBLOCK;i++,j++) data->c[i]=0;
-
- if (res>SHA_CBLOCK-8) {
- mask = 0-((inp_len+8-j)>>(sizeof(j)*8-1));
- data->u[SHA_LBLOCK-1] |= bitlen&mask;
- sha1_block_data_order(&key->md,data,1);
- mask &= 0-((j-inp_len-73)>>(sizeof(j)*8-1));
- pmac->u[0] |= key->md.h0 & mask;
- pmac->u[1] |= key->md.h1 & mask;
- pmac->u[2] |= key->md.h2 & mask;
- pmac->u[3] |= key->md.h3 & mask;
- pmac->u[4] |= key->md.h4 & mask;
-
- memset(data,0,SHA_CBLOCK);
- j+=64;
- }
- data->u[SHA_LBLOCK-1] = bitlen;
- sha1_block_data_order(&key->md,data,1);
- mask = 0-((j-inp_len-73)>>(sizeof(j)*8-1));
- pmac->u[0] |= key->md.h0 & mask;
- pmac->u[1] |= key->md.h1 & mask;
- pmac->u[2] |= key->md.h2 & mask;
- pmac->u[3] |= key->md.h3 & mask;
- pmac->u[4] |= key->md.h4 & mask;
-
-#ifdef BSWAP
- pmac->u[0] = BSWAP(pmac->u[0]);
- pmac->u[1] = BSWAP(pmac->u[1]);
- pmac->u[2] = BSWAP(pmac->u[2]);
- pmac->u[3] = BSWAP(pmac->u[3]);
- pmac->u[4] = BSWAP(pmac->u[4]);
-#else
- for (i=0;i<5;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 += SHA_DIGEST_LENGTH;
-#else
- SHA1_Update(&key->md,out,inp_len);
- res = key->md.num;
- SHA1_Final(pmac->c,&key->md);
-
- {
- unsigned int inp_blocks, pad_blocks;
-
- /* but pretend as if we hashed padded payload */
- inp_blocks = 1+((SHA_CBLOCK-9-res)>>(sizeof(res)*8-1));
- res += (unsigned int)(len-inp_len);
- pad_blocks = res / SHA_CBLOCK;
- res %= SHA_CBLOCK;
- pad_blocks += 1+((SHA_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;
- 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
- {
- unsigned char *p = out+len-1-maxpad-SHA_DIGEST_LENGTH;
- size_t off = out-p;
- unsigned int c, cmask;
-
- maxpad += SHA_DIGEST_LENGTH;
- for (res=0,i=0,j=0;j<maxpad;j++) {
- c = p[j];
- cmask = ((int)(j-off-SHA_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 -= SHA_DIGEST_LENGTH;
-
- res = 0-((0-res)>>(sizeof(res)*8-1));
- ret &= (int)~res;
- }
-#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));
- 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 {
- SHA1_Update(&key->md,out,len);
- }
- }
-
- return 1;
- }
-
-static int aesni_cbc_hmac_sha1_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg, void *ptr)
- {
- EVP_AES_HMAC_SHA1 *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)) {
- SHA1_Init(&key->head);
- SHA1_Update(&key->head,ptr,arg);
- SHA1_Final(hmac_key,&key->head);
- } else {
- memcpy(hmac_key,ptr,arg);
- }
-
- for (i=0;i<sizeof(hmac_key);i++)
- hmac_key[i] ^= 0x36; /* ipad */
- SHA1_Init(&key->head);
- SHA1_Update(&key->head,hmac_key,sizeof(hmac_key));
-
- for (i=0;i<sizeof(hmac_key);i++)
- hmac_key[i] ^= 0x36^0x5c; /* opad */
- SHA1_Init(&key->tail);
- SHA1_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;
- SHA1_Update(&key->md,p,arg);
-
- return (int)(((len+SHA_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 SHA_DIGEST_LENGTH;
- }
- }
- default:
- return -1;
- }
- }
-
-static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher =
- {
-#ifdef NID_aes_128_cbc_hmac_sha1
- NID_aes_128_cbc_hmac_sha1,
-#else
- NID_undef,
-#endif
- 16,16,16,
- EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|EVP_CIPH_FLAG_AEAD_CIPHER,
- aesni_cbc_hmac_sha1_init_key,
- aesni_cbc_hmac_sha1_cipher,
- NULL,
- sizeof(EVP_AES_HMAC_SHA1),
- 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_sha1_ctrl,
- NULL
- };
-
-static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher =
- {
-#ifdef NID_aes_256_cbc_hmac_sha1
- NID_aes_256_cbc_hmac_sha1,
-#else
- NID_undef,
-#endif
- 16,32,16,
- EVP_CIPH_CBC_MODE|EVP_CIPH_FLAG_DEFAULT_ASN1|EVP_CIPH_FLAG_AEAD_CIPHER,
- aesni_cbc_hmac_sha1_init_key,
- aesni_cbc_hmac_sha1_cipher,
- NULL,
- sizeof(EVP_AES_HMAC_SHA1),
- 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_sha1_ctrl,
- NULL
- };
+static EVP_CIPHER aesni_128_cbc_hmac_sha1_cipher = {
+# ifdef NID_aes_128_cbc_hmac_sha1
+ NID_aes_128_cbc_hmac_sha1,
+# else
+ NID_undef,
+# endif
+ 16, 16, 16,
+ EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
+ EVP_CIPH_FLAG_AEAD_CIPHER,
+ aesni_cbc_hmac_sha1_init_key,
+ aesni_cbc_hmac_sha1_cipher,
+ NULL,
+ sizeof(EVP_AES_HMAC_SHA1),
+ 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_sha1_ctrl,
+ NULL
+};
+
+static EVP_CIPHER aesni_256_cbc_hmac_sha1_cipher = {
+# ifdef NID_aes_256_cbc_hmac_sha1
+ NID_aes_256_cbc_hmac_sha1,
+# else
+ NID_undef,
+# endif
+ 16, 32, 16,
+ EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
+ EVP_CIPH_FLAG_AEAD_CIPHER,
+ aesni_cbc_hmac_sha1_init_key,
+ aesni_cbc_hmac_sha1_cipher,
+ NULL,
+ sizeof(EVP_AES_HMAC_SHA1),
+ 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_sha1_ctrl,
+ NULL
+};
const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
- {
- return(OPENSSL_ia32cap_P[1]&AESNI_CAPABLE?
- &aesni_128_cbc_hmac_sha1_cipher:NULL);
- }
+{
+ return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
+ &aesni_128_cbc_hmac_sha1_cipher : NULL);
+}
const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void)
- {
- return(OPENSSL_ia32cap_P[1]&AESNI_CAPABLE?
- &aesni_256_cbc_hmac_sha1_cipher:NULL);
- }
-#else
+{
+ return (OPENSSL_ia32cap_P[1] & AESNI_CAPABLE ?
+ &aesni_256_cbc_hmac_sha1_cipher : NULL);
+}
+# else
const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha1(void)
- {
- return NULL;
- }
+{
+ return NULL;
+}
+
const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha1(void)
- {
- return NULL;
- }
-#endif
+{
+ return NULL;
+}
+# endif
#endif