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Unified Diff: openssl/crypto/evp/e_aes.c

Issue 2072073002: Delete bundled copy of OpenSSL and replace with README. (Closed) Base URL: https://chromium.googlesource.com/chromium/deps/openssl@master
Patch Set: Delete bundled copy of OpenSSL and replace with README. Created 4 years, 6 months ago
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Index: openssl/crypto/evp/e_aes.c
diff --git a/openssl/crypto/evp/e_aes.c b/openssl/crypto/evp/e_aes.c
deleted file mode 100644
index 69165a2d1af2b0cd1d4d5f488b95905675b309a1..0000000000000000000000000000000000000000
--- a/openssl/crypto/evp/e_aes.c
+++ /dev/null
@@ -1,1486 +0,0 @@
-/* ====================================================================
- * Copyright (c) 2001-2011 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@openssl.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- */
-
-#include <openssl/opensslconf.h>
-#ifndef OPENSSL_NO_AES
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include <string.h>
-#include <assert.h>
-#include <openssl/aes.h>
-#include "evp_locl.h"
-#ifndef OPENSSL_FIPS
-#include "modes_lcl.h"
-#include <openssl/rand.h>
-
-typedef struct
- {
- AES_KEY ks;
- block128_f block;
- union {
- cbc128_f cbc;
- ctr128_f ctr;
- } stream;
- } 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 */
- int tls_aad_len; /* TLS AAD length */
- ctr128_f ctr;
- } EVP_AES_GCM_CTX;
-
-typedef struct
- {
- AES_KEY ks1, ks2; /* AES key schedules to use */
- XTS128_CONTEXT xts;
- void (*stream)(const unsigned char *in,
- unsigned char *out, size_t length,
- const AES_KEY *key1, const AES_KEY *key2,
- const unsigned char iv[16]);
- } 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;
- ccm128_f str;
- } EVP_AES_CCM_CTX;
-
-#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4))
-
-#ifdef VPAES_ASM
-int vpaes_set_encrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
-int vpaes_set_decrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
-
-void vpaes_encrypt(const unsigned char *in, unsigned char *out,
- const AES_KEY *key);
-void vpaes_decrypt(const unsigned char *in, unsigned char *out,
- const AES_KEY *key);
-
-void vpaes_cbc_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key,
- unsigned char *ivec, int enc);
-#endif
-#ifdef BSAES_ASM
-void bsaes_cbc_encrypt(const unsigned char *in, unsigned char *out,
- size_t length, const AES_KEY *key,
- unsigned char ivec[16], int enc);
-void bsaes_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
- size_t len, const AES_KEY *key,
- const unsigned char ivec[16]);
-void bsaes_xts_encrypt(const unsigned char *inp, unsigned char *out,
- size_t len, const AES_KEY *key1,
- const AES_KEY *key2, const unsigned char iv[16]);
-void bsaes_xts_decrypt(const unsigned char *inp, unsigned char *out,
- size_t len, const AES_KEY *key1,
- const AES_KEY *key2, const unsigned char iv[16]);
-#endif
-#ifdef AES_CTR_ASM
-void AES_ctr32_encrypt(const unsigned char *in, unsigned char *out,
- size_t blocks, const AES_KEY *key,
- const unsigned char ivec[AES_BLOCK_SIZE]);
-#endif
-#ifdef AES_XTS_ASM
-void AES_xts_encrypt(const char *inp,char *out,size_t len,
- const AES_KEY *key1, const AES_KEY *key2,
- const unsigned char iv[16]);
-void AES_xts_decrypt(const char *inp,char *out,size_t len,
- const AES_KEY *key1, const AES_KEY *key2,
- const unsigned char iv[16]);
-#endif
-
-#if defined(AES_ASM) && !defined(I386_ONLY) && ( \
- ((defined(__i386) || defined(__i386__) || \
- defined(_M_IX86)) && defined(OPENSSL_IA32_SSE2))|| \
- defined(__x86_64) || defined(__x86_64__) || \
- defined(_M_AMD64) || defined(_M_X64) || \
- defined(__INTEL__) )
-
-extern unsigned int OPENSSL_ia32cap_P[2];
-
-#ifdef VPAES_ASM
-#define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32)))
-#endif
-#ifdef BSAES_ASM
-#define BSAES_CAPABLE VPAES_CAPABLE
-#endif
-/*
- * AES-NI section
- */
-#define AESNI_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(57-32)))
-
-int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
-int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
- AES_KEY *key);
-
-void aesni_encrypt(const unsigned char *in, unsigned char *out,
- const AES_KEY *key);
-void aesni_decrypt(const unsigned char *in, unsigned char *out,
- const AES_KEY *key);
-
-void aesni_ecb_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key,
- int enc);
-void aesni_cbc_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key,
- unsigned char *ivec, int enc);
-
-void aesni_ctr32_encrypt_blocks(const unsigned char *in,
- unsigned char *out,
- size_t blocks,
- const void *key,
- const unsigned char *ivec);
-
-void aesni_xts_encrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key1, const AES_KEY *key2,
- const unsigned char iv[16]);
-
-void aesni_xts_decrypt(const unsigned char *in,
- unsigned char *out,
- size_t length,
- const AES_KEY *key1, const AES_KEY *key2,
- const unsigned char iv[16]);
-
-void aesni_ccm64_encrypt_blocks (const unsigned char *in,
- unsigned char *out,
- size_t blocks,
- const void *key,
- const unsigned char ivec[16],
- unsigned char cmac[16]);
-
-void aesni_ccm64_decrypt_blocks (const unsigned char *in,
- unsigned char *out,
- size_t blocks,
- const void *key,
- const unsigned char ivec[16],
- unsigned char cmac[16]);
-
-static int aesni_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
- const unsigned char *iv, int enc)
- {
- int ret, mode;
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- mode = ctx->cipher->flags & EVP_CIPH_MODE;
- if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
- && !enc)
- {
- ret = aesni_set_decrypt_key(key, ctx->key_len*8, ctx->cipher_data);
- dat->block = (block128_f)aesni_decrypt;
- dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
- (cbc128_f)aesni_cbc_encrypt :
- NULL;
- }
- else {
- ret = aesni_set_encrypt_key(key, ctx->key_len*8, ctx->cipher_data);
- dat->block = (block128_f)aesni_encrypt;
- if (mode==EVP_CIPH_CBC_MODE)
- dat->stream.cbc = (cbc128_f)aesni_cbc_encrypt;
- else if (mode==EVP_CIPH_CTR_MODE)
- dat->stream.ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
- else
- dat->stream.cbc = NULL;
- }
-
- if(ret < 0)
- {
- EVPerr(EVP_F_AESNI_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
- return 0;
- }
-
- return 1;
- }
-
-static int aesni_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in, size_t len)
-{
- aesni_cbc_encrypt(in,out,len,ctx->cipher_data,ctx->iv,ctx->encrypt);
-
- return 1;
-}
-
-static int aesni_ecb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in, size_t len)
-{
- size_t bl = ctx->cipher->block_size;
-
- if (len<bl) return 1;
-
- aesni_ecb_encrypt(in,out,len,ctx->cipher_data,ctx->encrypt);
-
- return 1;
-}
-
-#define aesni_ofb_cipher aes_ofb_cipher
-static int aesni_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len);
-
-#define aesni_cfb_cipher aes_cfb_cipher
-static int aesni_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len);
-
-#define aesni_cfb8_cipher aes_cfb8_cipher
-static int aesni_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len);
-
-#define aesni_cfb1_cipher aes_cfb1_cipher
-static int aesni_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len);
-
-#define aesni_ctr_cipher aes_ctr_cipher
-static int aesni_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len);
-
-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);
- gctx->ctr = (ctr128_f)aesni_ctr32_encrypt_blocks;
- /* 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;
- }
-
-#define aesni_gcm_cipher aes_gcm_cipher
-static int aesni_gcm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len);
-
-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;
- xctx->stream = aesni_xts_encrypt;
- }
- else
- {
- aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1);
- xctx->xts.block1 = (block128_f)aesni_decrypt;
- xctx->stream = aesni_xts_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;
- }
-
-#define aesni_xts_cipher aes_xts_cipher
-static int aesni_xts_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t 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->str = enc?(ccm128_f)aesni_ccm64_encrypt_blocks :
- (ccm128_f)aesni_ccm64_decrypt_blocks;
- cctx->key_set = 1;
- }
- if (iv)
- {
- memcpy(ctx->iv, iv, 15 - cctx->L);
- cctx->iv_set = 1;
- }
- return 1;
- }
-
-#define aesni_ccm_cipher aes_ccm_cipher
-static int aesni_ccm_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len);
-
-#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 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 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 = { \
- 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 &aes_##keylen##_##mode; }
-
-#define BLOCK_CIPHER_custom(nid,keylen,blocksize,ivlen,mode,MODE,flags) \
-static const EVP_CIPHER aes_##keylen##_##mode = { \
- nid##_##keylen##_##mode,blocksize, \
- (EVP_CIPH_##MODE##_MODE==EVP_CIPH_XTS_MODE?2:1)*keylen/8, ivlen, \
- 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 &aes_##keylen##_##mode; }
-#endif
-
-#define BLOCK_CIPHER_generic_pack(nid,keylen,flags) \
- BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
- BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
- BLOCK_CIPHER_generic(nid,keylen,1,16,ofb128,ofb,OFB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1) \
- 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,
- const unsigned char *iv, int enc)
- {
- int ret, mode;
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- mode = ctx->cipher->flags & EVP_CIPH_MODE;
- if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
- && !enc)
-#ifdef BSAES_CAPABLE
- if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE)
- {
- ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks);
- dat->block = (block128_f)AES_decrypt;
- dat->stream.cbc = (cbc128_f)bsaes_cbc_encrypt;
- }
- else
-#endif
-#ifdef VPAES_CAPABLE
- if (VPAES_CAPABLE)
- {
- ret = vpaes_set_decrypt_key(key,ctx->key_len*8,&dat->ks);
- dat->block = (block128_f)vpaes_decrypt;
- dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
- (cbc128_f)vpaes_cbc_encrypt :
- NULL;
- }
- else
-#endif
- {
- ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks);
- dat->block = (block128_f)AES_decrypt;
- dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
- (cbc128_f)AES_cbc_encrypt :
- NULL;
- }
- else
-#ifdef BSAES_CAPABLE
- if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE)
- {
- ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks);
- dat->block = (block128_f)AES_encrypt;
- dat->stream.ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks;
- }
- else
-#endif
-#ifdef VPAES_CAPABLE
- if (VPAES_CAPABLE)
- {
- ret = vpaes_set_encrypt_key(key,ctx->key_len*8,&dat->ks);
- dat->block = (block128_f)vpaes_encrypt;
- dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
- (cbc128_f)vpaes_cbc_encrypt :
- NULL;
- }
- else
-#endif
- {
- ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks);
- dat->block = (block128_f)AES_encrypt;
- dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ?
- (cbc128_f)AES_cbc_encrypt :
- NULL;
-#ifdef AES_CTR_ASM
- if (mode==EVP_CIPH_CTR_MODE)
- dat->stream.ctr = (ctr128_f)AES_ctr32_encrypt;
-#endif
- }
-
- if(ret < 0)
- {
- EVPerr(EVP_F_AES_INIT_KEY,EVP_R_AES_KEY_SETUP_FAILED);
- return 0;
- }
-
- return 1;
- }
-
-static int aes_cbc_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in, size_t len)
-{
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- if (dat->stream.cbc)
- (*dat->stream.cbc)(in,out,len,&dat->ks,ctx->iv,ctx->encrypt);
- else if (ctx->encrypt)
- CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
- else
- CRYPTO_cbc128_encrypt(in,out,len,&dat->ks,ctx->iv,dat->block);
-
- return 1;
-}
-
-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;
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- if (len<bl) return 1;
-
- for (i=0,len-=bl;i<=len;i+=bl)
- (*dat->block)(in+i,out+i,&dat->ks);
-
- return 1;
-}
-
-static int aes_ofb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len)
-{
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- CRYPTO_ofb128_encrypt(in,out,len,&dat->ks,
- ctx->iv,&ctx->num,dat->block);
- return 1;
-}
-
-static int aes_cfb_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len)
-{
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- CRYPTO_cfb128_encrypt(in,out,len,&dat->ks,
- ctx->iv,&ctx->num,ctx->encrypt,dat->block);
- return 1;
-}
-
-static int aes_cfb8_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len)
-{
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- CRYPTO_cfb128_8_encrypt(in,out,len,&dat->ks,
- ctx->iv,&ctx->num,ctx->encrypt,dat->block);
- return 1;
-}
-
-static int aes_cfb1_cipher(EVP_CIPHER_CTX *ctx,unsigned char *out,
- const unsigned char *in,size_t len)
-{
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- if (ctx->flags&EVP_CIPH_FLAG_LENGTH_BITS) {
- CRYPTO_cfb128_1_encrypt(in,out,len,&dat->ks,
- ctx->iv,&ctx->num,ctx->encrypt,dat->block);
- return 1;
- }
-
- while (len>=MAXBITCHUNK) {
- CRYPTO_cfb128_1_encrypt(in,out,MAXBITCHUNK*8,&dat->ks,
- ctx->iv,&ctx->num,ctx->encrypt,dat->block);
- len-=MAXBITCHUNK;
- }
- if (len)
- CRYPTO_cfb128_1_encrypt(in,out,len*8,&dat->ks,
- ctx->iv,&ctx->num,ctx->encrypt,dat->block);
-
- return 1;
-}
-
-static int aes_ctr_cipher (EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len)
-{
- unsigned int num = ctx->num;
- EVP_AES_KEY *dat = (EVP_AES_KEY *)ctx->cipher_data;
-
- if (dat->stream.ctr)
- CRYPTO_ctr128_encrypt_ctr32(in,out,len,&dat->ks,
- ctx->iv,ctx->buf,&num,dat->stream.ctr);
- else
- CRYPTO_ctr128_encrypt(in,out,len,&dat->ks,
- ctx->iv,ctx->buf,&num,dat->block);
- ctx->num = (size_t)num;
- return 1;
-}
-
-BLOCK_CIPHER_generic_pack(NID_aes,128,EVP_CIPH_FLAG_FIPS)
-BLOCK_CIPHER_generic_pack(NID_aes,192,EVP_CIPH_FLAG_FIPS)
-BLOCK_CIPHER_generic_pack(NID_aes,256,EVP_CIPH_FLAG_FIPS)
-
-static int aes_gcm_cleanup(EVP_CIPHER_CTX *c)
- {
- EVP_AES_GCM_CTX *gctx = c->cipher_data;
- OPENSSL_cleanse(&gctx->gcm, sizeof(gctx->gcm));
- if (gctx->iv != c->iv)
- OPENSSL_free(gctx->iv);
- return 1;
- }
-
-/* increment counter (64-bit int) by 1 */
-static void ctr64_inc(unsigned char *counter) {
- int n=8;
- unsigned char c;
-
- do {
- --n;
- c = counter[n];
- ++c;
- counter[n] = c;
- if (c) return;
- } while (n);
-}
-
-static int aes_gcm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
- {
- EVP_AES_GCM_CTX *gctx = c->cipher_data;
- switch (type)
- {
- case EVP_CTRL_INIT:
- gctx->key_set = 0;
- gctx->iv_set = 0;
- gctx->ivlen = c->cipher->iv_len;
- gctx->iv = c->iv;
- gctx->taglen = -1;
- gctx->iv_gen = 0;
- gctx->tls_aad_len = -1;
- return 1;
-
- case EVP_CTRL_GCM_SET_IVLEN:
- if (arg <= 0)
- return 0;
-#ifdef OPENSSL_FIPS
- if (FIPS_module_mode() && !(c->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW)
- && arg < 12)
- return 0;
-#endif
- /* Allocate memory for IV if needed */
- if ((arg > EVP_MAX_IV_LENGTH) && (arg > gctx->ivlen))
- {
- if (gctx->iv != c->iv)
- OPENSSL_free(gctx->iv);
- gctx->iv = OPENSSL_malloc(arg);
- if (!gctx->iv)
- return 0;
- }
- gctx->ivlen = arg;
- return 1;
-
- case EVP_CTRL_GCM_SET_TAG:
- if (arg <= 0 || arg > 16 || c->encrypt)
- return 0;
- memcpy(c->buf, ptr, arg);
- gctx->taglen = arg;
- return 1;
-
- case EVP_CTRL_GCM_GET_TAG:
- if (arg <= 0 || arg > 16 || !c->encrypt || gctx->taglen < 0)
- return 0;
- memcpy(ptr, c->buf, arg);
- return 1;
-
- case EVP_CTRL_GCM_SET_IV_FIXED:
- /* Special case: -1 length restores whole IV */
- if (arg == -1)
- {
- memcpy(gctx->iv, ptr, gctx->ivlen);
- gctx->iv_gen = 1;
- return 1;
- }
- /* Fixed field must be at least 4 bytes and invocation field
- * at least 8.
- */
- if ((arg < 4) || (gctx->ivlen - arg) < 8)
- return 0;
- if (arg)
- memcpy(gctx->iv, ptr, arg);
- if (c->encrypt &&
- RAND_bytes(gctx->iv + arg, gctx->ivlen - arg) <= 0)
- return 0;
- gctx->iv_gen = 1;
- return 1;
-
- case EVP_CTRL_GCM_IV_GEN:
- if (gctx->iv_gen == 0 || gctx->key_set == 0)
- return 0;
- CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
- if (arg <= 0 || arg > gctx->ivlen)
- arg = gctx->ivlen;
- memcpy(ptr, gctx->iv + gctx->ivlen - arg, arg);
- /* Invocation field will be at least 8 bytes in size and
- * so no need to check wrap around or increment more than
- * last 8 bytes.
- */
- ctr64_inc(gctx->iv + gctx->ivlen - 8);
- gctx->iv_set = 1;
- return 1;
-
- case EVP_CTRL_GCM_SET_IV_INV:
- if (gctx->iv_gen == 0 || gctx->key_set == 0 || c->encrypt)
- return 0;
- memcpy(gctx->iv + gctx->ivlen - arg, ptr, arg);
- CRYPTO_gcm128_setiv(&gctx->gcm, gctx->iv, gctx->ivlen);
- gctx->iv_set = 1;
- return 1;
-
- case EVP_CTRL_AEAD_TLS1_AAD:
- /* Save the AAD for later use */
- if (arg != 13)
- return 0;
- memcpy(c->buf, ptr, arg);
- gctx->tls_aad_len = arg;
- {
- unsigned int len=c->buf[arg-2]<<8|c->buf[arg-1];
- /* Correct length for explicit IV */
- len -= EVP_GCM_TLS_EXPLICIT_IV_LEN;
- /* If decrypting correct for tag too */
- if (!c->encrypt)
- len -= EVP_GCM_TLS_TAG_LEN;
- c->buf[arg-2] = len>>8;
- c->buf[arg-1] = len & 0xff;
- }
- /* Extra padding: tag appended to record */
- return EVP_GCM_TLS_TAG_LEN;
-
- default:
- return -1;
-
- }
- }
-
-static ctr128_f aes_gcm_set_key(AES_KEY *aes_key, GCM128_CONTEXT *gcm_ctx,
- const unsigned char *key, size_t key_len)
- {
-#ifdef BSAES_CAPABLE
- if (BSAES_CAPABLE)
- {
- AES_set_encrypt_key(key,key_len*8,aes_key);
- CRYPTO_gcm128_init(gcm_ctx,aes_key,
- (block128_f)AES_encrypt);
- return (ctr128_f)bsaes_ctr32_encrypt_blocks;
- }
-#endif
-#ifdef VPAES_CAPABLE
- if (VPAES_CAPABLE)
- {
- vpaes_set_encrypt_key(key,key_len*8,aes_key);
- CRYPTO_gcm128_init(gcm_ctx,aes_key,
- (block128_f)vpaes_encrypt);
- return NULL;
- }
-#endif
- AES_set_encrypt_key(key, key_len*8, aes_key);
- CRYPTO_gcm128_init(gcm_ctx, aes_key, (block128_f)AES_encrypt);
-#ifdef AES_CTR_ASM
- return (ctr128_f)AES_ctr32_encrypt;
-#else
- return NULL;
-#endif
- }
-
-static int aes_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)
- {
- gctx->ctr = aes_gcm_set_key(&gctx->ks, &gctx->gcm, key, ctx->key_len);
- /* 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;
- }
-
-/* Handle TLS GCM packet format. This consists of the last portion of the IV
- * followed by the payload and finally the tag. On encrypt generate IV,
- * encrypt payload and write the tag. On verify retrieve IV, decrypt payload
- * and verify tag.
- */
-
-static int aes_gcm_tls_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
- const unsigned char *in, size_t len)
- {
- EVP_AES_GCM_CTX *gctx = ctx->cipher_data;
- int rv = -1;
- /* Encrypt/decrypt must be performed in place */
- if (out != in || len < (EVP_GCM_TLS_EXPLICIT_IV_LEN+EVP_GCM_TLS_TAG_LEN))
- return -1;
- /* Set IV from start of buffer or generate IV and write to start
- * of buffer.
- */
- if (EVP_CIPHER_CTX_ctrl(ctx, ctx->encrypt ?
- EVP_CTRL_GCM_IV_GEN : EVP_CTRL_GCM_SET_IV_INV,
- EVP_GCM_TLS_EXPLICIT_IV_LEN, out) <= 0)
- goto err;
- /* Use saved AAD */
- if (CRYPTO_gcm128_aad(&gctx->gcm, ctx->buf, gctx->tls_aad_len))
- goto err;
- /* Fix buffer and length to point to payload */
- in += EVP_GCM_TLS_EXPLICIT_IV_LEN;
- out += EVP_GCM_TLS_EXPLICIT_IV_LEN;
- len -= EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
- if (ctx->encrypt)
- {
- /* Encrypt payload */
- if (gctx->ctr)
- {
- if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
- in, out, len,
- gctx->ctr))
- goto err;
- }
- else {
- if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len))
- goto err;
- }
- out += len;
- /* Finally write tag */
- CRYPTO_gcm128_tag(&gctx->gcm, out, EVP_GCM_TLS_TAG_LEN);
- rv = len + EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN;
- }
- else
- {
- /* Decrypt */
- if (gctx->ctr)
- {
- if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
- in, out, len,
- gctx->ctr))
- goto err;
- }
- else {
- if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len))
- goto err;
- }
- /* Retrieve tag */
- CRYPTO_gcm128_tag(&gctx->gcm, ctx->buf,
- EVP_GCM_TLS_TAG_LEN);
- /* If tag mismatch wipe buffer */
- if (memcmp(ctx->buf, in + len, EVP_GCM_TLS_TAG_LEN))
- {
- OPENSSL_cleanse(out, len);
- goto err;
- }
- rv = len;
- }
-
- err:
- gctx->iv_set = 0;
- gctx->tls_aad_len = -1;
- return rv;
- }
-
-static int aes_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->key_set)
- return -1;
-
- if (gctx->tls_aad_len >= 0)
- return aes_gcm_tls_cipher(ctx, out, in, len);
-
- if (!gctx->iv_set)
- return -1;
- if (in)
- {
- if (out == NULL)
- {
- if (CRYPTO_gcm128_aad(&gctx->gcm, in, len))
- return -1;
- }
- else if (ctx->encrypt)
- {
- if (gctx->ctr)
- {
- if (CRYPTO_gcm128_encrypt_ctr32(&gctx->gcm,
- in, out, len,
- gctx->ctr))
- return -1;
- }
- else {
- if (CRYPTO_gcm128_encrypt(&gctx->gcm, in, out, len))
- return -1;
- }
- }
- else
- {
- if (gctx->ctr)
- {
- if (CRYPTO_gcm128_decrypt_ctr32(&gctx->gcm,
- in, out, len,
- gctx->ctr))
- return -1;
- }
- else {
- if (CRYPTO_gcm128_decrypt(&gctx->gcm, in, out, len))
- return -1;
- }
- }
- return len;
- }
- else
- {
- if (!ctx->encrypt)
- {
- if (gctx->taglen < 0)
- return -1;
- 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;
- }
-
- }
-
-#define CUSTOM_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 \
- | EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
- | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
-
-BLOCK_CIPHER_custom(NID_aes,128,1,12,gcm,GCM,
- EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
-BLOCK_CIPHER_custom(NID_aes,192,1,12,gcm,GCM,
- EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
-BLOCK_CIPHER_custom(NID_aes,256,1,12,gcm,GCM,
- EVP_CIPH_FLAG_FIPS|EVP_CIPH_FLAG_AEAD_CIPHER|CUSTOM_FLAGS)
-
-static int aes_xts_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
- {
- EVP_AES_XTS_CTX *xctx = c->cipher_data;
- if (type != EVP_CTRL_INIT)
- return -1;
- /* key1 and key2 are used as an indicator both key and IV are set */
- xctx->xts.key1 = NULL;
- xctx->xts.key2 = NULL;
- return 1;
- }
-
-static int aes_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) do
- {
-#ifdef AES_XTS_ASM
- xctx->stream = enc ? AES_xts_encrypt : AES_xts_decrypt;
-#else
- xctx->stream = NULL;
-#endif
- /* key_len is two AES keys */
-#ifdef BSAES_CAPABLE
- if (BSAES_CAPABLE)
- xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
- else
-#endif
-#ifdef VPAES_CAPABLE
- if (VPAES_CAPABLE)
- {
- if (enc)
- {
- vpaes_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1);
- xctx->xts.block1 = (block128_f)vpaes_encrypt;
- }
- else
- {
- vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1);
- xctx->xts.block1 = (block128_f)vpaes_decrypt;
- }
-
- vpaes_set_encrypt_key(key + ctx->key_len/2,
- ctx->key_len * 4, &xctx->ks2);
- xctx->xts.block2 = (block128_f)vpaes_encrypt;
-
- xctx->xts.key1 = &xctx->ks1;
- break;
- }
-#endif
- if (enc)
- {
- AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1);
- xctx->xts.block1 = (block128_f)AES_encrypt;
- }
- else
- {
- AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1);
- xctx->xts.block1 = (block128_f)AES_decrypt;
- }
-
- AES_set_encrypt_key(key + ctx->key_len/2,
- ctx->key_len * 4, &xctx->ks2);
- xctx->xts.block2 = (block128_f)AES_encrypt;
-
- xctx->xts.key1 = &xctx->ks1;
- } while (0);
-
- if (iv)
- {
- xctx->xts.key2 = &xctx->ks2;
- memcpy(ctx->iv, iv, 16);
- }
-
- return 1;
- }
-
-static int aes_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 0;
- if (!out || !in || len<AES_BLOCK_SIZE)
- return 0;
-#ifdef OPENSSL_FIPS
- /* Requirement of SP800-38E */
- if (FIPS_module_mode() && !(ctx->flags & EVP_CIPH_FLAG_NON_FIPS_ALLOW) &&
- (len > (1UL<<20)*16))
- {
- EVPerr(EVP_F_AES_XTS_CIPHER, EVP_R_TOO_LARGE);
- return 0;
- }
-#endif
- if (xctx->stream)
- (*xctx->stream)(in, out, len,
- xctx->xts.key1, xctx->xts.key2, ctx->iv);
- else if (CRYPTO_xts128_encrypt(&xctx->xts, ctx->iv, in, out, len,
- ctx->encrypt))
- return 0;
- return 1;
- }
-
-#define aes_xts_cleanup NULL
-
-#define XTS_FLAGS (EVP_CIPH_FLAG_DEFAULT_ASN1 | EVP_CIPH_CUSTOM_IV \
- | EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_CTRL_INIT)
-
-BLOCK_CIPHER_custom(NID_aes,128,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
-BLOCK_CIPHER_custom(NID_aes,256,1,16,xts,XTS,EVP_CIPH_FLAG_FIPS|XTS_FLAGS)
-
-static int aes_ccm_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
- {
- EVP_AES_CCM_CTX *cctx = c->cipher_data;
- switch (type)
- {
- case EVP_CTRL_INIT:
- cctx->key_set = 0;
- cctx->iv_set = 0;
- cctx->L = 8;
- cctx->M = 12;
- cctx->tag_set = 0;
- cctx->len_set = 0;
- return 1;
-
- case EVP_CTRL_CCM_SET_IVLEN:
- arg = 15 - arg;
- case EVP_CTRL_CCM_SET_L:
- if (arg < 2 || arg > 8)
- return 0;
- cctx->L = arg;
- return 1;
-
- case EVP_CTRL_CCM_SET_TAG:
- if ((arg & 1) || arg < 4 || arg > 16)
- return 0;
- if ((c->encrypt && ptr) || (!c->encrypt && !ptr))
- return 0;
- if (ptr)
- {
- cctx->tag_set = 1;
- memcpy(c->buf, ptr, arg);
- }
- cctx->M = arg;
- return 1;
-
- case EVP_CTRL_CCM_GET_TAG:
- if (!c->encrypt || !cctx->tag_set)
- return 0;
- if(!CRYPTO_ccm128_tag(&cctx->ccm, ptr, (size_t)arg))
- return 0;
- cctx->tag_set = 0;
- cctx->iv_set = 0;
- cctx->len_set = 0;
- return 1;
-
- default:
- return -1;
-
- }
- }
-
-static int aes_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) do
- {
-#ifdef VPAES_CAPABLE
- if (VPAES_CAPABLE)
- {
- vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks);
- CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
- &cctx->ks, (block128_f)vpaes_encrypt);
- cctx->str = NULL;
- cctx->key_set = 1;
- break;
- }
-#endif
- AES_set_encrypt_key(key, ctx->key_len * 8, &cctx->ks);
- CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L,
- &cctx->ks, (block128_f)AES_encrypt);
- cctx->str = NULL;
- cctx->key_set = 1;
- } while (0);
- if (iv)
- {
- memcpy(ctx->iv, iv, 15 - cctx->L);
- cctx->iv_set = 1;
- }
- return 1;
- }
-
-static int aes_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 (cctx->str ? CRYPTO_ccm128_encrypt_ccm64(ccm, in, out, len,
- cctx->str) :
- CRYPTO_ccm128_encrypt(ccm, in, out, len))
- return -1;
- cctx->tag_set = 1;
- return len;
- }
- else
- {
- int rv = -1;
- if (cctx->str ? !CRYPTO_ccm128_decrypt_ccm64(ccm, in, out, len,
- cctx->str) :
- !CRYPTO_ccm128_decrypt(ccm, in, out, len))
- {
- 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 aes_ccm_cleanup NULL
-
-BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
-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)
-
-#define EVP_AEAD_AES_128_GCM_TAG_LEN 16
-
-struct aead_aes_128_gcm_ctx {
- union { double align; AES_KEY ks; } ks;
- GCM128_CONTEXT gcm;
- ctr128_f ctr;
- unsigned char tag_len;
-};
-
-static int aead_aes_128_gcm_init(EVP_AEAD_CTX *ctx,
- const unsigned char *key, size_t key_len, size_t tag_len)
- {
- struct aead_aes_128_gcm_ctx *gcm_ctx;
-
- if (key_len*8 != 128)
- {
- EVPerr(EVP_F_AEAD_AES_128_GCM_INIT, EVP_R_BAD_KEY_LENGTH);
- return 0; /* EVP_AEAD_CTX_init should catch this. */
- }
-
- if (tag_len == EVP_AEAD_DEFAULT_TAG_LENGTH)
- tag_len = EVP_AEAD_AES_128_GCM_TAG_LEN;
-
- if (tag_len > EVP_AEAD_AES_128_GCM_TAG_LEN)
- {
- EVPerr(EVP_F_AEAD_AES_128_GCM_INIT, EVP_R_TAG_TOO_LARGE);
- return 0;
- }
-
- gcm_ctx = OPENSSL_malloc(sizeof(struct aead_aes_128_gcm_ctx));
- if (gcm_ctx == NULL)
- return 0;
-
-#ifdef AESNI_CAPABLE
- if (AESNI_CAPABLE)
- {
- aesni_set_encrypt_key(key, key_len * 8, &gcm_ctx->ks.ks);
- CRYPTO_gcm128_init(&gcm_ctx->gcm, &gcm_ctx->ks.ks,
- (block128_f)aesni_encrypt);
- gcm_ctx->ctr = (ctr128_f) aesni_ctr32_encrypt_blocks;
- }
- else
-#endif
- {
- gcm_ctx->ctr = aes_gcm_set_key(&gcm_ctx->ks.ks, &gcm_ctx->gcm,
- key, key_len);
- }
- gcm_ctx->tag_len = tag_len;
- ctx->aead_state = gcm_ctx;
-
- return 1;
- }
-
-static void aead_aes_128_gcm_cleanup(EVP_AEAD_CTX *ctx)
- {
- struct aead_aes_128_gcm_ctx *gcm_ctx = ctx->aead_state;
- OPENSSL_free(gcm_ctx);
- }
-
-static ssize_t aead_aes_128_gcm_seal(const EVP_AEAD_CTX *ctx,
- unsigned char *out, size_t max_out_len,
- const unsigned char *nonce, size_t nonce_len,
- const unsigned char *in, size_t in_len,
- const unsigned char *ad, size_t ad_len)
- {
- size_t bulk = 0;
- const struct aead_aes_128_gcm_ctx *gcm_ctx = ctx->aead_state;
- GCM128_CONTEXT gcm;
-
- if (max_out_len < in_len + gcm_ctx->tag_len)
- {
- EVPerr(EVP_F_AEAD_AES_128_GCM_SEAL, EVP_R_BUFFER_TOO_SMALL);
- return -1;
- }
-
- memcpy(&gcm, &gcm_ctx->gcm, sizeof(gcm));
- CRYPTO_gcm128_setiv(&gcm, nonce, nonce_len);
-
- if (ad_len > 0 && CRYPTO_gcm128_aad(&gcm, ad, ad_len))
- return -1;
-
- if (gcm_ctx->ctr)
- {
- if (CRYPTO_gcm128_encrypt_ctr32(&gcm, in + bulk, out + bulk,
- in_len - bulk, gcm_ctx->ctr))
- return -1;
- }
- else
- {
- if (CRYPTO_gcm128_encrypt(&gcm, in + bulk, out + bulk,
- in_len - bulk))
- return -1;
- }
-
- CRYPTO_gcm128_tag(&gcm, out + in_len, gcm_ctx->tag_len);
- return in_len + gcm_ctx->tag_len;
- }
-
-static ssize_t aead_aes_128_gcm_open(const EVP_AEAD_CTX *ctx,
- unsigned char *out, size_t max_out_len,
- const unsigned char *nonce, size_t nonce_len,
- const unsigned char *in, size_t in_len,
- const unsigned char *ad, size_t ad_len)
- {
- size_t bulk = 0;
- const struct aead_aes_128_gcm_ctx *gcm_ctx = ctx->aead_state;
- unsigned char tag[EVP_AEAD_AES_128_GCM_TAG_LEN];
- size_t out_len;
- GCM128_CONTEXT gcm;
-
- if (in_len < gcm_ctx->tag_len)
- {
- EVPerr(EVP_F_AEAD_AES_128_GCM_OPEN, EVP_R_BAD_DECRYPT);
- return -1;
- }
-
- out_len = in_len - gcm_ctx->tag_len;
-
- if (max_out_len < out_len)
- {
- EVPerr(EVP_F_AEAD_AES_128_GCM_OPEN, EVP_R_BUFFER_TOO_SMALL);
- return -1;
- }
-
- memcpy(&gcm, &gcm_ctx->gcm, sizeof(gcm));
- CRYPTO_gcm128_setiv(&gcm, nonce, nonce_len);
-
- if (CRYPTO_gcm128_aad(&gcm, ad, ad_len))
- return -1;
-
- if (gcm_ctx->ctr)
- {
- if (CRYPTO_gcm128_decrypt_ctr32(&gcm, in + bulk, out + bulk,
- in_len-bulk-gcm_ctx->tag_len,
- gcm_ctx->ctr))
- return -1;
- }
- else
- {
- if (CRYPTO_gcm128_decrypt(&gcm, in + bulk, out + bulk,
- in_len - bulk - gcm_ctx->tag_len))
- return -1;
- }
-
- CRYPTO_gcm128_tag(&gcm, tag, gcm_ctx->tag_len);
- if (CRYPTO_memcmp(tag, in + out_len, gcm_ctx->tag_len) != 0)
- {
- EVPerr(EVP_F_AEAD_AES_128_GCM_OPEN, EVP_R_BAD_DECRYPT);
- return -1;
- }
-
- return out_len;
- }
-
-static const EVP_AEAD aead_aes_128_gcm = {
- 16, /* key len */
- 12, /* nonce len */
- EVP_AEAD_AES_128_GCM_TAG_LEN, /* overhead */
- EVP_AEAD_AES_128_GCM_TAG_LEN, /* max tag length */
-
- aead_aes_128_gcm_init,
- aead_aes_128_gcm_cleanup,
- aead_aes_128_gcm_seal,
- aead_aes_128_gcm_open,
-};
-
-const EVP_AEAD *EVP_aead_aes_128_gcm()
- {
- return &aead_aes_128_gcm;
- }
-
-#endif
-#endif
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