X-Git-Url: https://git.openssl.org/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fe_camellia.c;h=cb69516bdef01a1e20d43414cc43b2adf869ca97;hp=a7b40d1c6001065a34ca1a745c3678046a505689;hb=HEAD;hpb=02c9b66a6c112afa55a1b163a938f0c17d382cc6 diff --git a/crypto/evp/e_camellia.c b/crypto/evp/e_camellia.c index a7b40d1c60..cb69516bde 100644 --- a/crypto/evp/e_camellia.c +++ b/crypto/evp/e_camellia.c @@ -1,131 +1,349 @@ -/* crypto/evp/e_camellia.c -*- mode:C; c-file-style: "eay" -*- */ -/* ==================================================================== - * Copyright (c) 2006 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the Apache License 2.0 (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html + */ + +/* + * Camellia low level APIs are deprecated for public use, but still ok for + * internal use. */ +#include "internal/deprecated.h" #include -#ifndef OPENSSL_NO_CAMELLIA + #include #include #include #include #include -#include "evp_locl.h" +#include "crypto/evp.h" +#include "crypto/modes.h" +#include "crypto/cmll_platform.h" +#include "evp_local.h" static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc); + const unsigned char *iv, int enc); /* Camellia subkey Structure */ -typedef struct - { - CAMELLIA_KEY ks; - } EVP_CAMELLIA_KEY; +typedef struct { + CAMELLIA_KEY ks; + block128_f block; + union { + cbc128_f cbc; + ctr128_f ctr; + } stream; +} EVP_CAMELLIA_KEY; + +#define MAXBITCHUNK ((size_t)1<<(sizeof(size_t)*8-4)) /* Attribute operation for Camellia */ -#define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx) - -IMPLEMENT_BLOCK_CIPHER(camellia_128, ks, Camellia, EVP_CAMELLIA_KEY, - NID_camellia_128, 16, 16, 16, 128, - 0, camellia_init_key, NULL, - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv, - NULL) -IMPLEMENT_BLOCK_CIPHER(camellia_192, ks, Camellia, EVP_CAMELLIA_KEY, - NID_camellia_192, 16, 24, 16, 128, - 0, camellia_init_key, NULL, - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv, - NULL) -IMPLEMENT_BLOCK_CIPHER(camellia_256, ks, Camellia, EVP_CAMELLIA_KEY, - NID_camellia_256, 16, 32, 16, 128, - 0, camellia_init_key, NULL, - EVP_CIPHER_set_asn1_iv, - EVP_CIPHER_get_asn1_iv, - NULL) - -#define IMPLEMENT_CAMELLIA_CFBR(ksize,cbits) IMPLEMENT_CFBR(camellia,Camellia,EVP_CAMELLIA_KEY,ks,ksize,cbits,16) - -IMPLEMENT_CAMELLIA_CFBR(128,1) -IMPLEMENT_CAMELLIA_CFBR(192,1) -IMPLEMENT_CAMELLIA_CFBR(256,1) - -IMPLEMENT_CAMELLIA_CFBR(128,8) -IMPLEMENT_CAMELLIA_CFBR(192,8) -IMPLEMENT_CAMELLIA_CFBR(256,8) - - - -/* The subkey for Camellia is generated. */ -static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, - const unsigned char *iv, int enc) - { - int ret; +#define data(ctx) EVP_C_DATA(EVP_CAMELLIA_KEY,ctx) + +#if defined(AES_ASM) && (defined(__sparc) || defined(__sparc__)) +/* ---------^^^ this is not a typo, just a way to detect that + * assembler support was in general requested... */ +# include "crypto/sparc_arch.h" + +static int cmll_t4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + int ret, mode, bits; + EVP_CAMELLIA_KEY *dat = + (EVP_CAMELLIA_KEY *)EVP_CIPHER_CTX_get_cipher_data(ctx); + + mode = EVP_CIPHER_CTX_get_mode(ctx); + bits = EVP_CIPHER_CTX_get_key_length(ctx) * 8; + + cmll_t4_set_key(key, bits, &dat->ks); + + if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) + && !enc) { + ret = 0; + dat->block = (block128_f) cmll_t4_decrypt; + switch (bits) { + case 128: + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) cmll128_t4_cbc_decrypt : NULL; + break; + case 192: + case 256: + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) cmll256_t4_cbc_decrypt : NULL; + break; + default: + ret = -1; + } + } else { + ret = 0; + dat->block = (block128_f) cmll_t4_encrypt; + switch (bits) { + case 128: + if (mode == EVP_CIPH_CBC_MODE) + dat->stream.cbc = (cbc128_f) cmll128_t4_cbc_encrypt; + else if (mode == EVP_CIPH_CTR_MODE) + dat->stream.ctr = (ctr128_f) cmll128_t4_ctr32_encrypt; + else + dat->stream.cbc = NULL; + break; + case 192: + case 256: + if (mode == EVP_CIPH_CBC_MODE) + dat->stream.cbc = (cbc128_f) cmll256_t4_cbc_encrypt; + else if (mode == EVP_CIPH_CTR_MODE) + dat->stream.ctr = (ctr128_f) cmll256_t4_ctr32_encrypt; + else + dat->stream.cbc = NULL; + break; + default: + ret = -1; + } + } + + if (ret < 0) { + ERR_raise(ERR_LIB_EVP, EVP_R_CAMELLIA_KEY_SETUP_FAILED); + return 0; + } + + return 1; +} + +# define cmll_t4_cbc_cipher camellia_cbc_cipher +static int cmll_t4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); + +# define cmll_t4_ecb_cipher camellia_ecb_cipher +static int cmll_t4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); + +# define cmll_t4_ofb_cipher camellia_ofb_cipher +static int cmll_t4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); + +# define cmll_t4_cfb_cipher camellia_cfb_cipher +static int cmll_t4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); + +# define cmll_t4_cfb8_cipher camellia_cfb8_cipher +static int cmll_t4_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); - ret=Camellia_set_key(key, ctx->key_len * 8, ctx->cipher_data); +# define cmll_t4_cfb1_cipher camellia_cfb1_cipher +static int cmll_t4_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); - if(ret < 0) - { - EVPerr(EVP_F_CAMELLIA_INIT_KEY,EVP_R_CAMELLIA_KEY_SETUP_FAILED); - return 0; - } +# define cmll_t4_ctr_cipher camellia_ctr_cipher +static int cmll_t4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len); - return 1; - } +# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ +static const EVP_CIPHER cmll_t4_##keylen##_##mode = { \ + nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + EVP_ORIG_GLOBAL, \ + cmll_t4_init_key, \ + cmll_t4_##mode##_cipher, \ + NULL, \ + sizeof(EVP_CAMELLIA_KEY), \ + NULL,NULL,NULL,NULL }; \ +static const EVP_CIPHER camellia_##keylen##_##mode = { \ + nid##_##keylen##_##nmode,blocksize, \ + keylen/8,ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + EVP_ORIG_GLOBAL, \ + camellia_init_key, \ + camellia_##mode##_cipher, \ + NULL, \ + sizeof(EVP_CAMELLIA_KEY), \ + NULL,NULL,NULL,NULL }; \ +const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \ +{ return SPARC_CMLL_CAPABLE?&cmll_t4_##keylen##_##mode:&camellia_##keylen##_##mode; } #else -# ifdef PEDANTIC -static void *dummy=&dummy; -# endif +# define BLOCK_CIPHER_generic(nid,keylen,blocksize,ivlen,nmode,mode,MODE,flags) \ +static const EVP_CIPHER camellia_##keylen##_##mode = { \ + nid##_##keylen##_##nmode,blocksize,keylen/8,ivlen, \ + flags|EVP_CIPH_##MODE##_MODE, \ + EVP_ORIG_GLOBAL, \ + camellia_init_key, \ + camellia_##mode##_cipher, \ + NULL, \ + sizeof(EVP_CAMELLIA_KEY), \ + NULL,NULL,NULL,NULL }; \ +const EVP_CIPHER *EVP_camellia_##keylen##_##mode(void) \ +{ return &camellia_##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) + +/* The subkey for Camellia is generated. */ +static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc) +{ + int ret, mode; + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + ret = Camellia_set_key(key, EVP_CIPHER_CTX_get_key_length(ctx) * 8, + &dat->ks); + if (ret < 0) { + ERR_raise(ERR_LIB_EVP, EVP_R_CAMELLIA_KEY_SETUP_FAILED); + return 0; + } + + mode = EVP_CIPHER_CTX_get_mode(ctx); + if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE) + && !enc) { + dat->block = (block128_f) Camellia_decrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) Camellia_cbc_encrypt : NULL; + } else { + dat->block = (block128_f) Camellia_encrypt; + dat->stream.cbc = mode == EVP_CIPH_CBC_MODE ? + (cbc128_f) Camellia_cbc_encrypt : NULL; + } + + return 1; +} + +static int camellia_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + if (dat->stream.cbc) + (*dat->stream.cbc) (in, out, len, &dat->ks, ctx->iv, + EVP_CIPHER_CTX_is_encrypting(ctx)); + else if (EVP_CIPHER_CTX_is_encrypting(ctx)) + CRYPTO_cbc128_encrypt(in, out, len, &dat->ks, ctx->iv, dat->block); + else + CRYPTO_cbc128_decrypt(in, out, len, &dat->ks, ctx->iv, dat->block); + + return 1; +} + +static int camellia_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + size_t bl = EVP_CIPHER_CTX_get_block_size(ctx); + size_t i; + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + 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 camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + int num = EVP_CIPHER_CTX_get_num(ctx); + CRYPTO_ofb128_encrypt(in, out, len, &dat->ks, ctx->iv, &num, dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + return 1; +} + +static int camellia_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + int num = EVP_CIPHER_CTX_get_num(ctx); + CRYPTO_cfb128_encrypt(in, out, len, &dat->ks, ctx->iv, &num, + EVP_CIPHER_CTX_is_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + return 1; +} + +static int camellia_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + int num = EVP_CIPHER_CTX_get_num(ctx); + CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks, ctx->iv, &num, + EVP_CIPHER_CTX_is_encrypting(ctx), dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + return 1; +} + +static int camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + if (EVP_CIPHER_CTX_test_flags(ctx, EVP_CIPH_FLAG_LENGTH_BITS)) { + int num = EVP_CIPHER_CTX_get_num(ctx); + CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks, ctx->iv, &num, + EVP_CIPHER_CTX_is_encrypting(ctx), + dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + return 1; + } + + while (len >= MAXBITCHUNK) { + int num = EVP_CIPHER_CTX_get_num(ctx); + CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks, + ctx->iv, &num, + EVP_CIPHER_CTX_is_encrypting(ctx), + dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + len -= MAXBITCHUNK; + out += MAXBITCHUNK; + in += MAXBITCHUNK; + } + if (len) { + int num = EVP_CIPHER_CTX_get_num(ctx); + CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks, + ctx->iv, &num, + EVP_CIPHER_CTX_is_encrypting(ctx), + dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + } + + return 1; +} + +static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + int snum = EVP_CIPHER_CTX_get_num(ctx); + unsigned int num; + EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY, ctx); + + if (snum < 0) + return 0; + num = snum; + if (dat->stream.ctr) + CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks, ctx->iv, + EVP_CIPHER_CTX_buf_noconst(ctx), + &num, + dat->stream.ctr); + else + CRYPTO_ctr128_encrypt(in, out, len, &dat->ks, ctx->iv, + EVP_CIPHER_CTX_buf_noconst(ctx), &num, + dat->block); + EVP_CIPHER_CTX_set_num(ctx, num); + return 1; +} + +BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0) + BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0) + BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0)