367 lines
14 KiB
C
367 lines
14 KiB
C
|
/*
|
||
|
|
* Copyright 2006-2021 The OpenSSL Project Authors. All Rights Reserved.
|
||
|
|
*
|
||
|
|
* Licensed under the OpenSSL license (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
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <openssl/opensslconf.h>
|
||
|
|
#ifdef OPENSSL_NO_CAMELLIA
|
||
|
|
NON_EMPTY_TRANSLATION_UNIT
|
||
|
|
#else
|
||
|
|
|
||
|
|
# include <openssl/evp.h>
|
||
|
|
# include <openssl/err.h>
|
||
|
|
# include <string.h>
|
||
|
|
# include <assert.h>
|
||
|
|
# include <openssl/camellia.h>
|
||
|
|
# include "crypto/evp.h"
|
||
|
|
# include "modes_local.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, int /*unused*/);
|
||
|
|
void cmll128_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
|
||
|
|
size_t len, const CAMELLIA_KEY *key,
|
||
|
|
unsigned char *ivec, int /*unused*/);
|
||
|
|
void cmll256_t4_cbc_encrypt(const unsigned char *in, unsigned char *out,
|
||
|
|
size_t len, const CAMELLIA_KEY *key,
|
||
|
|
unsigned char *ivec, int /*unused*/);
|
||
|
|
void cmll256_t4_cbc_decrypt(const unsigned char *in, unsigned char *out,
|
||
|
|
size_t len, const CAMELLIA_KEY *key,
|
||
|
|
unsigned char *ivec, int /*unused*/);
|
||
|
|
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 *)EVP_CIPHER_CTX_get_cipher_data(ctx);
|
||
|
|
|
||
|
|
mode = EVP_CIPHER_CTX_mode(ctx);
|
||
|
|
bits = EVP_CIPHER_CTX_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) {
|
||
|
|
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) \
|
||
|
|
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_key_length(ctx) * 8, &dat->ks);
|
||
|
|
if (ret < 0) {
|
||
|
|
EVPerr(EVP_F_CAMELLIA_INIT_KEY, EVP_R_CAMELLIA_KEY_SETUP_FAILED);
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
mode = EVP_CIPHER_CTX_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,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx),
|
||
|
|
EVP_CIPHER_CTX_encrypting(ctx));
|
||
|
|
else if (EVP_CIPHER_CTX_encrypting(ctx))
|
||
|
|
CRYPTO_cbc128_encrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), dat->block);
|
||
|
|
else
|
||
|
|
CRYPTO_cbc128_decrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), 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_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_num(ctx);
|
||
|
|
CRYPTO_ofb128_encrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), &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_num(ctx);
|
||
|
|
CRYPTO_cfb128_encrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_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_num(ctx);
|
||
|
|
CRYPTO_cfb128_8_encrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_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_num(ctx);
|
||
|
|
CRYPTO_cfb128_1_encrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
|
||
|
|
EVP_CIPHER_CTX_set_num(ctx, num);
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
while (len >= MAXBITCHUNK) {
|
||
|
|
int num = EVP_CIPHER_CTX_num(ctx);
|
||
|
|
CRYPTO_cfb128_1_encrypt(in, out, MAXBITCHUNK * 8, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_encrypting(ctx), dat->block);
|
||
|
|
EVP_CIPHER_CTX_set_num(ctx, num);
|
||
|
|
len -= MAXBITCHUNK;
|
||
|
|
out += MAXBITCHUNK;
|
||
|
|
in += MAXBITCHUNK;
|
||
|
|
}
|
||
|
|
if (len) {
|
||
|
|
int num = EVP_CIPHER_CTX_num(ctx);
|
||
|
|
CRYPTO_cfb128_1_encrypt(in, out, len * 8, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx), &num, EVP_CIPHER_CTX_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)
|
||
|
|
{
|
||
|
|
unsigned int num = EVP_CIPHER_CTX_num(ctx);
|
||
|
|
EVP_CAMELLIA_KEY *dat = EVP_C_DATA(EVP_CAMELLIA_KEY,ctx);
|
||
|
|
|
||
|
|
if (dat->stream.ctr)
|
||
|
|
CRYPTO_ctr128_encrypt_ctr32(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx),
|
||
|
|
EVP_CIPHER_CTX_buf_noconst(ctx), &num,
|
||
|
|
dat->stream.ctr);
|
||
|
|
else
|
||
|
|
CRYPTO_ctr128_encrypt(in, out, len, &dat->ks,
|
||
|
|
EVP_CIPHER_CTX_iv_noconst(ctx),
|
||
|
|
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)
|
||
|
|
#endif
|