diff options
Diffstat (limited to 'crypto/openssl/crypto/evp/e_camellia.c')
| -rw-r--r-- | crypto/openssl/crypto/evp/e_camellia.c | 394 |
1 files changed, 394 insertions, 0 deletions
diff --git a/crypto/openssl/crypto/evp/e_camellia.c b/crypto/openssl/crypto/evp/e_camellia.c new file mode 100644 index 0000000..f273f9c --- /dev/null +++ b/crypto/openssl/crypto/evp/e_camellia.c @@ -0,0 +1,394 @@ +/* crypto/evp/e_camellia.c */ +/* ==================================================================== + * 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). + * + */ + +#include <openssl/opensslconf.h> +#ifndef OPENSSL_NO_CAMELLIA +# include <openssl/evp.h> +# include <openssl/err.h> +# include <string.h> +# include <assert.h> +# include <openssl/camellia.h> +# include "evp_locl.h" +# include "modes_lcl.h" + +static int camellia_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, + const unsigned char *iv, int enc); + +/* Camellia subkey Structure */ +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) + +# 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 "sparc_arch.h" + +extern unsigned int OPENSSL_sparcv9cap_P[]; + +# define SPARC_CMLL_CAPABLE (OPENSSL_sparcv9cap_P[1] & CFR_CAMELLIA) + +void cmll_t4_set_key(const unsigned char *key, int bits, CAMELLIA_KEY *ks); +void cmll_t4_encrypt(const unsigned char *in, unsigned char *out, + const CAMELLIA_KEY *key); +void cmll_t4_decrypt(const unsigned char *in, unsigned char *out, + const CAMELLIA_KEY *key); + +void cmll128_t4_cbc_encrypt(const unsigned char *in, unsigned char *out, + size_t len, const CAMELLIA_KEY *key, + unsigned char *ivec); +void cmll128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out, + size_t len, const CAMELLIA_KEY *key, + unsigned char *ivec); +void cmll256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out, + size_t len, const CAMELLIA_KEY *key, + unsigned char *ivec); +void cmll256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out, + size_t len, const CAMELLIA_KEY *key, + unsigned char *ivec); +void cmll128_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out, + size_t blocks, const CAMELLIA_KEY *key, + unsigned char *ivec); +void cmll256_t4_ctr32_encrypt(const unsigned char *in, unsigned char *out, + size_t blocks, const CAMELLIA_KEY *key, + unsigned char *ivec); + +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 *) ctx->cipher_data; + + mode = ctx->cipher->flags & EVP_CIPH_MODE; + bits = ctx->key_len * 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) { + EVPerr(EVP_F_CMLL_T4_INIT_KEY, 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); + +# 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); + +# 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); + +# 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, \ + 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, \ + 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 + +# 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, \ + 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) +# if 0 /* not yet, missing NID */ +BLOCK_CIPHER_generic(nid, keylen, 1, 16, ctr, ctr, CTR, flags) +# endif +/* 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_CAMELLIA_KEY *) ctx->cipher_data; + + ret = Camellia_set_key(key, ctx->key_len * 8, &dat->ks); + if (ret < 0) { + EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED); + return 0; + } + + mode = ctx->cipher->flags & EVP_CIPH_MODE; + 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_CAMELLIA_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_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 = ctx->cipher->block_size; + size_t i; + EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_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 camellia_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_KEY *) ctx->cipher_data; + + CRYPTO_ofb128_encrypt(in, out, len, &dat->ks, + ctx->iv, &ctx->num, dat->block); + 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_CAMELLIA_KEY *) ctx->cipher_data; + + CRYPTO_cfb128_encrypt(in, out, len, &dat->ks, + ctx->iv, &ctx->num, ctx->encrypt, dat->block); + 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_CAMELLIA_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 camellia_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_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; +} + +# if 0 /* not yet, missing NID */ +static int camellia_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, size_t len) +{ + unsigned int num = ctx->num; + EVP_CAMELLIA_KEY *dat = (EVP_CAMELLIA_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; +} +# endif + +BLOCK_CIPHER_generic_pack(NID_camellia, 128, 0) + BLOCK_CIPHER_generic_pack(NID_camellia, 192, 0) + BLOCK_CIPHER_generic_pack(NID_camellia, 256, 0) +#else + +# ifdef PEDANTIC +static void *dummy = &dummy; +# endif + +#endif |
