diff options
Diffstat (limited to 'main/openssl/crypto/evp/e_aes.c')
| m--------- | main/openssl | 0 | ||||
| -rw-r--r-- | main/openssl/crypto/evp/e_aes.c | 1491 |
2 files changed, 0 insertions, 1491 deletions
diff --git a/main/openssl b/main/openssl new file mode 160000 +Subproject 4d377a9ce111930d8a8f06dc0e94a892a7f6c51 diff --git a/main/openssl/crypto/evp/e_aes.c b/main/openssl/crypto/evp/e_aes.c deleted file mode 100644 index 85d5aaa4..00000000 --- a/main/openssl/crypto/evp/e_aes.c +++ /dev/null @@ -1,1491 +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 - { - union { double align; AES_KEY ks; } ks; - block128_f block; - union { - cbc128_f cbc; - ctr128_f ctr; - } stream; - } EVP_AES_KEY; - -typedef struct - { - union { double align; AES_KEY ks; } 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 - { - union { double align; AES_KEY ks; } 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 - { - union { double align; AES_KEY ks; } 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[]; - -#ifdef VPAES_ASM -#define VPAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) -#endif -#ifdef BSAES_ASM -#define BSAES_CAPABLE (OPENSSL_ia32cap_P[1]&(1<<(41-32))) -#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.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.ks); - xctx->xts.block1 = (block128_f)aesni_encrypt; - xctx->stream = aesni_xts_encrypt; - } - else - { - aesni_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); - 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.ks); - 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.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 - -#if defined(OPENSSL_CPUID_OBJ) && (defined(__arm__) || defined(__arm) || defined(__aarch64__)) -#include "arm_arch.h" -#if __ARM_ARCH__>=7 -# if defined(BSAES_ASM) -# define BSAES_CAPABLE (OPENSSL_armcap_P & ARMV7_NEON) -# endif -# define HWAES_CAPABLE (OPENSSL_armcap_P & ARMV8_AES) -# define HWAES_set_encrypt_key aes_v8_set_encrypt_key -# define HWAES_set_decrypt_key aes_v8_set_decrypt_key -# define HWAES_encrypt aes_v8_encrypt -# define HWAES_decrypt aes_v8_decrypt -# define HWAES_cbc_encrypt aes_v8_cbc_encrypt -# define HWAES_ctr32_encrypt_blocks aes_v8_ctr32_encrypt_blocks -#endif -#endif - -#if defined(HWAES_CAPABLE) -int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits, - AES_KEY *key); -int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits, - AES_KEY *key); -void HWAES_encrypt(const unsigned char *in, unsigned char *out, - const AES_KEY *key); -void HWAES_decrypt(const unsigned char *in, unsigned char *out, - const AES_KEY *key); -void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out, - size_t length, const AES_KEY *key, - unsigned char *ivec, const int enc); -void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out, - size_t len, const AES_KEY *key, const unsigned char ivec[16]); -#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 HWAES_CAPABLE - if (HWAES_CAPABLE) - { - ret = HWAES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks); - dat->block = (block128_f)HWAES_decrypt; - dat->stream.cbc = NULL; -#ifdef HWAES_cbc_encrypt - if (mode==EVP_CIPH_CBC_MODE) - dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt; -#endif - } - else -#endif -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE) - { - ret = AES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.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.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.ks); - dat->block = (block128_f)AES_decrypt; - dat->stream.cbc = mode==EVP_CIPH_CBC_MODE ? - (cbc128_f)AES_cbc_encrypt : - NULL; - } - else -#ifdef HWAES_CAPABLE - if (HWAES_CAPABLE) - { - ret = HWAES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks); - dat->block = (block128_f)HWAES_encrypt; - dat->stream.cbc = NULL; -#ifdef HWAES_cbc_encrypt - if (mode==EVP_CIPH_CBC_MODE) - dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt; - else -#endif -#ifdef HWAES_ctr32_encrypt_blocks - if (mode==EVP_CIPH_CTR_MODE) - dat->stream.ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks; - else -#endif - (void)0; /* terminate potentially open 'else' */ - } - else -#endif -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE) - { - ret = AES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.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.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.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; - - case EVP_CTRL_COPY: - { - EVP_CIPHER_CTX *out = ptr; - EVP_AES_GCM_CTX *gctx_out = out->cipher_data; - if (gctx->gcm.key) - { - if (gctx->gcm.key != &gctx->ks) - return 0; - gctx_out->gcm.key = &gctx_out->ks; - } - if (gctx->iv == c->iv) - gctx_out->iv = out->iv; - else - { - gctx_out->iv = OPENSSL_malloc(gctx->ivlen); - if (!gctx_out->iv) - return 0; - memcpy(gctx_out->iv, gctx->iv, gctx->ivlen); - } - return 1; - } - - default: - return -1; - - } - } - -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) - { do { -#ifdef HWAES_CAPABLE - if (HWAES_CAPABLE) - { - HWAES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks); - CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, - (block128_f)HWAES_encrypt); -#ifdef HWAES_ctr32_encrypt_blocks - gctx->ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks; -#else - gctx->ctr = NULL; -#endif - break; - } - else -#endif -#ifdef BSAES_CAPABLE - if (BSAES_CAPABLE) - { - AES_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks); - CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, - (block128_f)AES_encrypt); - gctx->ctr = (ctr128_f)bsaes_ctr32_encrypt_blocks; - break; - } - else -#endif -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - vpaes_set_encrypt_key(key,ctx->key_len*8,&gctx->ks.ks); - CRYPTO_gcm128_init(&gctx->gcm,&gctx->ks, - (block128_f)vpaes_encrypt); - gctx->ctr = NULL; - break; - } - else -#endif - (void)0; /* terminate potentially open 'else' */ - - AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks); - CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt); -#ifdef AES_CTR_ASM - gctx->ctr = (ctr128_f)AES_ctr32_encrypt; -#else - gctx->ctr = NULL; -#endif - } while (0); - - /* 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 \ - | EVP_CIPH_CUSTOM_COPY) - -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_COPY) - { - EVP_CIPHER_CTX *out = ptr; - EVP_AES_XTS_CTX *xctx_out = out->cipher_data; - if (xctx->xts.key1) - { - if (xctx->xts.key1 != &xctx->ks1) - return 0; - xctx_out->xts.key1 = &xctx_out->ks1; - } - if (xctx->xts.key2) - { - if (xctx->xts.key2 != &xctx->ks2) - return 0; - xctx_out->xts.key2 = &xctx_out->ks2; - } - return 1; - } - else 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 HWAES_CAPABLE - if (HWAES_CAPABLE) - { - if (enc) - { - HWAES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); - xctx->xts.block1 = (block128_f)HWAES_encrypt; - } - else - { - HWAES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); - xctx->xts.block1 = (block128_f)HWAES_decrypt; - } - - HWAES_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2.ks); - xctx->xts.block2 = (block128_f)HWAES_encrypt; - - xctx->xts.key1 = &xctx->ks1; - break; - } - else -#endif -#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.ks); - xctx->xts.block1 = (block128_f)vpaes_encrypt; - } - else - { - vpaes_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); - xctx->xts.block1 = (block128_f)vpaes_decrypt; - } - - vpaes_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2.ks); - xctx->xts.block2 = (block128_f)vpaes_encrypt; - - xctx->xts.key1 = &xctx->ks1; - break; - } - else -#endif - (void)0; /* terminate potentially open 'else' */ - - if (enc) - { - AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); - xctx->xts.block1 = (block128_f)AES_encrypt; - } - else - { - AES_set_decrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks); - xctx->xts.block1 = (block128_f)AES_decrypt; - } - - AES_set_encrypt_key(key + ctx->key_len/2, - ctx->key_len * 4, &xctx->ks2.ks); - 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 \ - | EVP_CIPH_CUSTOM_COPY) - -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; - - case EVP_CTRL_COPY: - { - EVP_CIPHER_CTX *out = ptr; - EVP_AES_CCM_CTX *cctx_out = out->cipher_data; - if (cctx->ccm.key) - { - if (cctx->ccm.key != &cctx->ks) - return 0; - cctx_out->ccm.key = &cctx_out->ks; - } - 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 HWAES_CAPABLE - if (HWAES_CAPABLE) - { - HWAES_set_encrypt_key(key,ctx->key_len*8,&cctx->ks.ks); - - CRYPTO_ccm128_init(&cctx->ccm, cctx->M, cctx->L, - &cctx->ks, (block128_f)HWAES_encrypt); - cctx->str = NULL; - cctx->key_set = 1; - break; - } - else -#endif -#ifdef VPAES_CAPABLE - if (VPAES_CAPABLE) - { - vpaes_set_encrypt_key(key, ctx->key_len*8, &cctx->ks.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.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) - -#endif -#endif |