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e_aes.c: move AES-NI run-time switch and implement the switch for remaining modes.

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This commit is contained in:
Andy Polyakov 2011-06-06 11:40:03 +00:00
parent 4d01f2761d
commit 17f121de9d
1 changed files with 553 additions and 399 deletions
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822
crypto/evp/e_aes.c
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@ -1,5 +1,5 @@
/* ==================================================================== /* ====================================================================
* Copyright (c) 2001 The OpenSSL Project. All rights reserved. * Copyright (c) 2001-2011 The OpenSSL Project. All rights reserved.
* *
* Redistribution and use in source and binary forms, with or without * Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions * modification, are permitted provided that the following conditions
@ -66,12 +66,48 @@ typedef struct
AES_KEY ks; AES_KEY ks;
} EVP_AES_KEY; } EVP_AES_KEY;
typedef struct
{
AES_KEY ks; /* AES key schedule to use */
int key_set; /* Set if key initialised */
int iv_set; /* Set if an iv is set */
GCM128_CONTEXT gcm;
unsigned char *iv; /* Temporary IV store */
int ivlen; /* IV length */
int taglen;
int iv_gen; /* It is OK to generate IVs */
} EVP_AES_GCM_CTX;
typedef struct
{
AES_KEY ks1, ks2; /* AES key schedules to use */
XTS128_CONTEXT xts;
} EVP_AES_XTS_CTX;
typedef struct
{
AES_KEY ks; /* AES key schedule to use */
int key_set; /* Set if key initialised */
int iv_set; /* Set if an iv is set */
int tag_set; /* Set if tag is valid */
int len_set; /* Set if message length set */
int L, M; /* L and M parameters from RFC3610 */
CCM128_CONTEXT ccm;
} EVP_AES_CCM_CTX;
#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
#if defined(AES_ASM) && !defined(I386_ONLY) && ( \ #if defined(AES_ASM) && !defined(I386_ONLY) && ( \
((defined(__i386) || defined(__i386__) || \ ((defined(__i386) || defined(__i386__) || \
defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \ defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
defined(__x86_64) || defined(__x86_64__) || \ defined(__x86_64) || defined(__x86_64__) || \
defined(_M_AMD64) || defined(_M_X64) || \ defined(_M_AMD64) || defined(_M_X64) || \
defined(__INTEL__) ) defined(__INTEL__) )
/*
* AES-NI section
*/
extern unsigned int OPENSSL_ia32cap_P[2];
#define AESNI_CAPABLE (1<<(57-32))
int aesni_set_encrypt_key(const unsigned char *userKey, int bits, int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
AES_KEY *key); AES_KEY *key);
@ -100,10 +136,33 @@ void aesni_ctr32_encrypt_blocks(const unsigned char *in,
const void *key, const void *key,
const unsigned char *ivec); const unsigned char *ivec);
extern unsigned int OPENSSL_ia32cap_P[2]; void aesni_xts_encrypt(const unsigned char *in,
#define AESNI_CAPABLE (1<<(57-32)) unsigned char *out,
size_t length,
const AES_KEY *key1, const AES_KEY *key2,
const unsigned char iv[16]);
static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, 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]);
static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc) const unsigned char *iv, int enc)
{ {
int ret; int ret;
@ -111,13 +170,9 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
if (((ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_ECB_MODE if (((ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_ECB_MODE
|| (ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_CBC_MODE) || (ctx->cipher->flags & EVP_CIPH_MODE) == EVP_CIPH_CBC_MODE)
&& !enc) && !enc)
ret = OPENSSL_ia32cap_P[1]&AESNI_CAPABLE ? ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data);
aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data):
AES_set_decrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
else else
ret = OPENSSL_ia32cap_P[1]&AESNI_CAPABLE ? ret = aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data);
aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data):
AES_set_encrypt_key(key, ctx->key_len * 8, ctx->cipher_data);
if(ret < 0) if(ret < 0)
{ {
@ -128,140 +183,410 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
return 1; return 1;
} }
static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
if (OPENSSL_ia32cap_P[1]&AESNI_CAPABLE)
aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt); aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);
else
AES_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);
return 1; return 1;
} }
static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
size_t bl = ctx->cipher->block_size; size_t bl = ctx->cipher->block_size;
if (len<bl) return 1; if (len<bl) return 1;
if (OPENSSL_ia32cap_P[1]&AESNI_CAPABLE)
aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt); aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt);
else {
size_t i;
if (ctx->encrypt) {
for (i=0,len-=bl;i<=len;i+=bl)
AES_encrypt(in+i,out+i,ctx->cipher_data);
} else {
for (i=0,len-=bl;i<=len;i+=bl)
AES_decrypt(in+i,out+i,ctx->cipher_data);
}
}
return 1; return 1;
} }
static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len) const unsigned char *in,size_t len)
{ {
CRYPTO_ofb128_encrypt(in,out,len,ctx->cipher_data, CRYPTO_ofb128_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num, ctx->iv,&ctx->num,
OPENSSL_ia32cap_P[1]&AESNI_CAPABLE ? (block128_f)aesni_encrypt);
(block128_f)aesni_encrypt :
(block128_f)AES_encrypt);
return 1; return 1;
} }
static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len) const unsigned char *in,size_t len)
{ {
CRYPTO_cfb128_encrypt(in,out,len,ctx->cipher_data, CRYPTO_cfb128_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt, ctx->iv,&ctx->num,ctx->encrypt,
OPENSSL_ia32cap_P[1]&AESNI_CAPABLE ? (block128_f)aesni_encrypt);
(block128_f)aesni_encrypt :
(block128_f)AES_encrypt);
return 1; return 1;
} }
static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out, static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len) const unsigned char *in,size_t len)
{ {
CRYPTO_cfb128_8_encrypt(in,out,len,ctx->cipher_data, CRYPTO_cfb128_8_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt, ctx->iv,&ctx->num,ctx->encrypt,
OPENSSL_ia32cap_P[1]&AESNI_CAPABLE ? (block128_f)aesni_encrypt);
(block128_f)aesni_encrypt :
(block128_f)AES_encrypt);
return 1; return 1;
} }
#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4)) static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len) const unsigned char *in,size_t len)
{ {
block128_f block = OPENSSL_ia32cap_P[1]&AESNI_CAPABLE ?
(block128_f)aesni_encrypt :
(block128_f)AES_encrypt;
if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) { if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
CRYPTO_cfb128_1_encrypt(in,out,len,ctx->cipher_data, CRYPTO_cfb128_1_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,block); ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)aesni_encrypt);
return 1; return 1;
} }
while (len>=MAXBITCHUNK) { while (len>=MAXBITCHUNK) {
CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,ctx->cipher_data, CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,block); ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)aesni_encrypt);
len-=MAXBITCHUNK; len-=MAXBITCHUNK;
} }
if (len) if (len)
CRYPTO_cfb128_1_encrypt(in,out,len*8,ctx->cipher_data, CRYPTO_cfb128_1_encrypt(in,out,len*8,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,block); ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)aesni_encrypt);
return 1; return 1;
} }
static int aes_counter(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
unsigned int num; unsigned int num;
num = ctx->num; num = ctx->num;
if (OPENSSL_ia32cap_P[1]&AESNI_CAPABLE)
CRYPTO_ctr128_encrypt_ctr32(in,out,len, CRYPTO_ctr128_encrypt_ctr32(in,out,len,
ctx->cipher_data,ctx->iv,ctx->buf,&num, ctx->cipher_data,ctx->iv,ctx->buf,&num,
(ctr128_f)aesni_ctr32_encrypt_blocks); (ctr128_f)aesni_ctr32_encrypt_blocks);
else
CRYPTO_ctr128_encrypt(in,out,len,
ctx->cipher_data,ctx->iv,ctx->buf,&num,
(block128_f)AES_encrypt);
ctx->num = (size_t)num; ctx->num = (size_t)num;
return 1; return 1;
} }
#define BLOCK_CIPHER_mydef(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ static int aesni_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
if (!iv && !key)
return 1;
if (key)
{
aesni_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks);
CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks,
(block128_f)aesni_encrypt);
/* If we have an iv can set it directly, otherwise use
* saved IV.
*/
if (iv == NULL && gctx->iv_set)
iv = gctx->iv;
if (iv)
{
CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
gctx->iv_set = 1;
}
gctx->key_set = 1;
}
else
{
/* If key set use IV, otherwise copy */
if (gctx->key_set)
CRYPTO_gcm128_setiv(&gctx->gcm, iv, gctx->ivlen);
else
memcpy(gctx->iv, iv, gctx->ivlen);
gctx->iv_set = 1;
gctx->iv_gen = 0;
}
return 1;
}
static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
{
EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
/* If not set up, return error */
if (!gctx->iv_set && !gctx->key_set)
return -1;
if (!ctx->encrypt && gctx->taglen < 0)
return -1;
if (in)
{
if (out == NULL)
{
if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
return -1;
}
else if (ctx->encrypt)
{
if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
in, out, len,
aesni_ctr32_encrypt_blocks))
return -1;
}
else
{
if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
in, out, len,
aesni_ctr32_encrypt_blocks))
return -1;
}
return len;
}
else
{
if (!ctx->encrypt)
{
if (CRYPTO_gcm128_finish(&gctx->gcm,
ctx->buf, gctx->taglen) != 0)
return -1;
gctx->iv_set = 0;
return 0;
}
CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf, 16);
gctx->taglen = 16;
/* Don't reuse the IV */
gctx->iv_set = 0;
return 0;
}
}
static int aesni_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
if (!iv && !key)
return 1;
if (key)
{
/* key_len is two AES keys */
if (enc)
{
aesni_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1);
xctx->xts.block1 = (block128_f)aesni_encrypt;
}
else
{
aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1);
xctx->xts.block1 = (block128_f)aesni_decrypt;
}
aesni_set_encrypt_key(key + ctx->key_len/2,
ctx->key_len * 4, &xctx->ks2);
xctx->xts.block2 = (block128_f)aesni_encrypt;
xctx->xts.key1 = &xctx->ks1;
}
if (iv)
{
xctx->xts.key2 = &xctx->ks2;
memcpy(ctx->iv, iv, 16);
}
return 1;
}
static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
{
EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
if (!xctx->xts.key1 || !xctx->xts.key2)
return -1;
if (!out || !in)
return -1;
#ifdef OPENSSL_FIPS
/* Requirement of SP800-38E */
if (FIPS_module_mode() && !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) &&
(len > (1L<<20)*16))
{
EVPerr(EVP_F_AES_XTS, EVP_R_TOO_LARGE);
return -1;
}
#endif
if (ctx->encrypt)
aesni_xts_encrypt(in, out, len,
xctx->xts.key1, xctx->xts.key2, ctx->iv);
else
aesni_xts_decrypt(in, out, len,
xctx->xts.key1, xctx->xts.key2, ctx->iv);
return len;
}
static int aesni_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
if (!iv && !key)
return 1;
if (key)
{
aesni_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks);
CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
&cctx->ks, (block128_f)aesni_encrypt);
cctx->key_set = 1;
}
if (iv)
{
memcpy(ctx->iv, iv, 15 - cctx->L);
cctx->iv_set = 1;
}
return 1;
}
static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len)
{
EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
CCM128_CONTEXT *ccm = &cctx->ccm;
/* If not set up, return error */
if (!cctx->iv_set && !cctx->key_set)
return -1;
if (!ctx->encrypt && !cctx->tag_set)
return -1;
if (!out)
{
if (!in)
{
if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L,len))
return -1;
cctx->len_set = 1;
return len;
}
/* If have AAD need message length */
if (!cctx->len_set && len)
return -1;
CRYPTO_ccm128_aad(ccm, in, len);
return len;
}
/* EVP_*Final() doesn't return any data */
if (!in)
return 0;
/* If not set length yet do it */
if (!cctx->len_set)
{
if (CRYPTO_ccm128_setiv(ccm, ctx->iv, 15 - cctx->L, len))
return -1;
cctx->len_set = 1;
}
if (ctx->encrypt)
{
if (CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
aesni_ccm64_encrypt_blocks))
return -1;
cctx->tag_set = 1;
return len;
}
else
{
int rv = -1;
if (!CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
aesni_ccm64_decrypt_blocks))
{
unsigned char tag[16];
if (CRYPTO_ccm128_tag(ccm, tag, cctx->M))
{
if (!memcmp(tag, ctx->buf, cctx->M))
rv = len;
}
}
if (rv == -1)
OPENSSL_cleanse(out, len);
cctx->iv_set = 0;
cctx->tag_set = 0;
cctx->len_set = 0;
return rv;
}
}
#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
static const EVP_CIPHER aesni_##keylen##_##mode = { \
nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aesni_init_key, \
aesni_##mode##_cipher, \
NULL, \
sizeof(EVP_AES_KEY), \
NULL,NULL,NULL,NULL }; \
static const EVP_CIPHER aes_##keylen##_##mode = { \
nid##_##keylen##_##nmode,blocksize, \
keylen/8,ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aes_init_key, \
aes_##mode##_cipher, \
NULL, \
sizeof(EVP_AES_KEY), \
NULL,NULL,NULL,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return (OPENSSL_ia32cap_P[1]&AESNI_CAPABLE)? \
&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
static const EVP_CIPHER aesni_##keylen##_##mode = { \
nid##_##keylen##_##mode,blocksize, \
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aesni_##mode##_init_key, \
aesni_##mode##_cipher, \
aes_##mode##_cleanup, \
sizeof(EVP_AES_##MODE##_CTX), \
NULL,NULL,aes_##mode##_ctrl,NULL }; \
static const EVP_CIPHER aes_##keylen##_##mode = { \
nid##_##keylen##_##mode,blocksize, \
(EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \
aes_##mode##_init_key, \
aes_##mode##_cipher, \
aes_##mode##_cleanup, \
sizeof(EVP_AES_##MODE##_CTX), \
NULL,NULL,aes_##mode##_ctrl,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return (OPENSSL_ia32cap_P[1]&AESNI_CAPABLE)? \
&aesni_##keylen##_##mode:&aes_##keylen##_##mode; }
#else
#define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \
static const EVP_CIPHER aes_##keylen##_##mode = { \ static const EVP_CIPHER aes_##keylen##_##mode = { \
nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \
flags|EVP_CIPH_##MODE##_MODE, \ flags|EVP_CIPH_##MODE##_MODE, \
aes_init_key,aes_##mode##_cipher,NULL,sizeof(EVP_AES_KEY), \ aes_init_key, \
aes_##mode##_cipher, \
NULL, \
sizeof(EVP_AES_KEY), \
NULL,NULL,NULL,NULL }; \ NULL,NULL,NULL,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) { return &aes_##keylen##_##mode; } const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return &aes_##keylen##_##mode; }
#define BLOCK_CIPHER_mydefs(nid,keylen,flags) \ #define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
BLOCK_CIPHER_mydef(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ static const EVP_CIPHER aes_##keylen##_##mode = { \
BLOCK_CIPHER_mydef(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ nid##_##keylen##_##mode,blocksize, \
BLOCK_CIPHER_mydef(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
BLOCK_CIPHER_mydef(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \ flags|EVP_CIPH_##MODE##_MODE, \
BLOCK_CIPHER_mydef(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \ aes_##mode##_init_key, \
BLOCK_CIPHER_mydef(nid,keylen,1,16,cfb8,cfb8,CFB,flags) aes_##mode##_cipher, \
aes_##mode##_cleanup, \
sizeof(EVP_AES_##MODE##_CTX), \
NULL,NULL,aes_##mode##_ctrl,NULL }; \
const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
{ return &aes_##keylen##_##mode; }
#endif
BLOCK_CIPHER_mydefs(NID_aes,128,EVP_CIPH_FLAG_FIPS) #define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
BLOCK_CIPHER_mydefs(NID_aes,192,EVP_CIPH_FLAG_FIPS) BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
BLOCK_CIPHER_mydefs(NID_aes,256,EVP_CIPH_FLAG_FIPS) BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
#else BLOCK_CIPHER_generic(nid,keylen,1,16,cfb128,cfb,CFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
BLOCK_CIPHER_generic(nid,keylen,1,16,cfb1,cfb1,CFB,flags) \
BLOCK_CIPHER_generic(nid,keylen,1,16,cfb8,cfb8,CFB,flags) \
BLOCK_CIPHER_generic(nid,keylen,1,16,ctr,ctr,CTR,flags)
static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc) const unsigned char *iv, int enc)
@ -284,32 +609,85 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
return 1; return 1;
} }
#define data(ctx) EVP_C_DATA(EVP_AES_KEY,ctx) static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in, size_t len)
{
AES_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);
IMPLEMENT_BLOCK_CIPHER(aes_128, ks, AES, EVP_AES_KEY, return 1;
NID_aes_128, 16, 16, 16, 128, }
EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
aes_init_key, NULL, NULL, NULL, NULL)
IMPLEMENT_BLOCK_CIPHER(aes_192, ks, AES, EVP_AES_KEY,
NID_aes_192, 16, 24, 16, 128,
EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
aes_init_key, NULL, NULL, NULL, NULL)
IMPLEMENT_BLOCK_CIPHER(aes_256, ks, AES, EVP_AES_KEY,
NID_aes_256, 16, 32, 16, 128,
EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1,
aes_init_key, NULL, NULL, NULL, NULL)
#define IMPLEMENT_AES_CFBR(ksize,cbits) IMPLEMENT_CFBR(aes,AES,EVP_AES_KEY,ks,ksize,cbits,16,EVP_CIPH_FLAG_FIPS) static int aes_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in, size_t len)
{
size_t bl = ctx->cipher->block_size;
size_t i;
IMPLEMENT_AES_CFBR(128,1) if (len<bl) return 1;
IMPLEMENT_AES_CFBR(192,1)
IMPLEMENT_AES_CFBR(256,1)
IMPLEMENT_AES_CFBR(128,8) if (ctx->encrypt) {
IMPLEMENT_AES_CFBR(192,8) for (i=0,len-=bl;i<=len;i+=bl)
IMPLEMENT_AES_CFBR(256,8) AES_encrypt(in+i,out+i,ctx->cipher_data);
} else {
for (i=0,len-=bl;i<=len;i+=bl)
AES_decrypt(in+i,out+i,ctx->cipher_data);
}
static int aes_counter (EVP_CIPHER_CTX *ctx, unsigned char *out, return 1;
}
static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len)
{
CRYPTO_ofb128_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,
(block128_f)AES_encrypt);
return 1;
}
static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len)
{
CRYPTO_cfb128_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)AES_encrypt);
return 1;
}
static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len)
{
CRYPTO_cfb128_8_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)AES_encrypt);
return 1;
}
static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
const unsigned char *in,size_t len)
{
if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
CRYPTO_cfb128_1_encrypt(in,out,len,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)AES_encrypt);
return 1;
}
while (len>=MAXBITCHUNK) {
CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)AES_encrypt);
len-=MAXBITCHUNK;
}
if (len)
CRYPTO_cfb128_1_encrypt(in,out,len*8,ctx->cipher_data,
ctx->iv,&ctx->num,ctx->encrypt,
(block128_f)AES_encrypt);
return 1;
}
static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
unsigned int num; unsigned int num;
@ -331,76 +709,9 @@ static int aes_counter (EVP_CIPHER_CTX *ctx, unsigned char *out,
return 1; return 1;
} }
#endif BLOCK_CIPHER_generic_pack(NID_aes,128,EVP_CIPH_FLAG_FIPS)
BLOCK_CIPHER_generic_pack(NID_aes,192,EVP_CIPH_FLAG_FIPS)
static const EVP_CIPHER aes_128_ctr_cipher= BLOCK_CIPHER_generic_pack(NID_aes,256,EVP_CIPH_FLAG_FIPS)
{
NID_aes_128_ctr,1,16,16,
EVP_CIPH_CTR_MODE|EVP_CIPH_FLAG_FIPS,
aes_init_key,
aes_counter,
NULL,
sizeof(EVP_AES_KEY),
NULL,
NULL,
NULL,
NULL
};
const EVP_CIPHER *EVP_aes_128_ctr (void)
{ return &aes_128_ctr_cipher; }
static const EVP_CIPHER aes_192_ctr_cipher=
{
NID_aes_192_ctr,1,24,16,
EVP_CIPH_CTR_MODE|EVP_CIPH_FLAG_FIPS,
aes_init_key,
aes_counter,
NULL,
sizeof(EVP_AES_KEY),
NULL,
NULL,
NULL,
NULL
};
const EVP_CIPHER *EVP_aes_192_ctr (void)
{ return &aes_192_ctr_cipher; }
static const EVP_CIPHER aes_256_ctr_cipher=
{
NID_aes_256_ctr,1,32,16,
EVP_CIPH_CTR_MODE|EVP_CIPH_FLAG_FIPS,
aes_init_key,
aes_counter,
NULL,
sizeof(EVP_AES_KEY),
NULL,
NULL,
NULL,
NULL
};
const EVP_CIPHER *EVP_aes_256_ctr (void)
{ return &aes_256_ctr_cipher; }
typedef struct
{
/* AES key schedule to use */
AES_KEY ks;
/* Set if key initialised */
int key_set;
/* Set if an iv is set */
int iv_set;
GCM128_CONTEXT gcm;
/* Temporary IV store */
unsigned char *iv;
/* IV length */
int ivlen;
int taglen;
/* It is OK to generate IVs */
int iv_gen;
} EVP_AES_GCM_CTX;
static int aes_gcm_cleanup(EVP_CIPHER_CTX *c) static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
{ {
@ -546,7 +857,7 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
return 1; return 1;
} }
static int aes_gcm(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
EVP_AES_GCM_CTX *gctx = ctx->cipher_data; EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
@ -593,69 +904,13 @@ static int aes_gcm(EVP_CIPHER_CTX *ctx, unsigned char *out,
} }
static const EVP_CIPHER aes_128_gcm_cipher= #define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
{ | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
NID_aes_128_gcm,1,16,12, | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
EVP_CIPH_GCM_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_gcm_init_key,
aes_gcm,
aes_gcm_cleanup,
sizeof(EVP_AES_GCM_CTX),
NULL,
NULL,
aes_gcm_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_128_gcm (void) BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
{ return &aes_128_gcm_cipher; } BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
static const EVP_CIPHER aes_192_gcm_cipher=
{
NID_aes_192_gcm,1,24,12,
EVP_CIPH_GCM_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_gcm_init_key,
aes_gcm,
aes_gcm_cleanup,
sizeof(EVP_AES_GCM_CTX),
NULL,
NULL,
aes_gcm_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_192_gcm (void)
{ return &aes_192_gcm_cipher; }
static const EVP_CIPHER aes_256_gcm_cipher=
{
NID_aes_256_gcm,1,32,12,
EVP_CIPH_GCM_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_gcm_init_key,
aes_gcm,
aes_gcm_cleanup,
sizeof(EVP_AES_GCM_CTX),
NULL,
NULL,
aes_gcm_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_256_gcm (void)
{ return &aes_256_gcm_cipher; }
typedef struct
{
/* AES key schedules to use */
AES_KEY ks1, ks2;
XTS128_CONTEXT xts;
} EVP_AES_XTS_CTX;
static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
{ {
@ -705,7 +960,7 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
return 1; return 1;
} }
static int aes_xts(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
EVP_AES_XTS_CTX *xctx = ctx->cipher_data; EVP_AES_XTS_CTX *xctx = ctx->cipher_data;
@ -728,60 +983,10 @@ static int aes_xts(EVP_CIPHER_CTX *ctx, unsigned char *out,
return len; return len;
} }
static const EVP_CIPHER aes_128_xts_cipher= #define aes_xts_cleanup NULL
{
NID_aes_128_xts,16,32,16,
EVP_CIPH_XTS_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_xts_init_key,
aes_xts,
0,
sizeof(EVP_AES_XTS_CTX),
NULL,
NULL,
aes_xts_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_128_xts (void) BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
{ return &aes_128_xts_cipher; } BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
static const EVP_CIPHER aes_256_xts_cipher=
{
NID_aes_256_xts,16,64,16,
EVP_CIPH_XTS_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_xts_init_key,
aes_xts,
0,
sizeof(EVP_AES_XTS_CTX),
NULL,
NULL,
aes_xts_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_256_xts (void)
{ return &aes_256_xts_cipher; }
typedef struct
{
/* AES key schedule to use */
AES_KEY ks;
/* Set if key initialised */
int key_set;
/* Set if an iv is set */
int iv_set;
/* Set if tag is valid */
int tag_set;
/* Set if message length set */
int len_set;
/* L and M parameters from RFC3610 */
int L, M;
CCM128_CONTEXT ccm;
} EVP_AES_CCM_CTX;
static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr) static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
{ {
@ -855,7 +1060,7 @@ static int aes_ccm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
return 1; return 1;
} }
static int aes_ccm(EVP_CIPHER_CTX *ctx, unsigned char *out, static int aes_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
const unsigned char *in, size_t len) const unsigned char *in, size_t len)
{ {
EVP_AES_CCM_CTX *cctx = ctx->cipher_data; EVP_AES_CCM_CTX *cctx = ctx->cipher_data;
@ -919,61 +1124,10 @@ static int aes_ccm(EVP_CIPHER_CTX *ctx, unsigned char *out,
} }
static const EVP_CIPHER aes_128_ccm_cipher= #define aes_ccm_cleanup NULL
{
NID_aes_128_ccm,1,16,12,
EVP_CIPH_CCM_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_ccm_init_key,
aes_ccm,
0,
sizeof(EVP_AES_CCM_CTX),
NULL,
NULL,
aes_ccm_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_128_ccm (void) BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
{ return &aes_128_ccm_cipher; } BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
static const EVP_CIPHER aes_192_ccm_cipher=
{
NID_aes_192_ccm,1,24,12,
EVP_CIPH_CCM_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_ccm_init_key,
aes_ccm,
0,
sizeof(EVP_AES_CCM_CTX),
NULL,
NULL,
aes_ccm_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_192_ccm (void)
{ return &aes_192_ccm_cipher; }
static const EVP_CIPHER aes_256_ccm_cipher=
{
NID_aes_256_ccm,1,32,12,
EVP_CIPH_CCM_MODE|EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_DEFAULT_ASN1
| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER
| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT,
aes_ccm_init_key,
aes_ccm,
0,
sizeof(EVP_AES_CCM_CTX),
NULL,
NULL,
aes_ccm_ctrl,
NULL
};
const EVP_CIPHER *EVP_aes_256_ccm (void)
{ return &aes_256_ccm_cipher; }
#endif #endif