mirror of https://github.com/openssl/openssl.git
providers: Add SM4 XTS implementation
Signed-off-by: Xu Yizhou <xuyizhou1@huawei.com> Reviewed-by: Hugo Landau <hlandau@openssl.org> Reviewed-by: Tomas Mraz <tomas@openssl.org> (Merged from https://github.com/openssl/openssl/pull/19619)
This commit is contained in:
Xu Yizhou
Tomas Mraz
parent
de8f6a3e29
commit
2788b56f0c
|
|
@ -52,7 +52,7 @@ IF[{- !$disabled{asm} -}]
|
|||
ENDIF
|
||||
|
||||
$COMMON=cbc128.c ctr128.c cfb128.c ofb128.c gcm128.c ccm128.c xts128.c \
|
||||
wrap128.c $MODESASM
|
||||
wrap128.c xts128gb.c $MODESASM
|
||||
SOURCE[../../libcrypto]=$COMMON \
|
||||
cts128.c ocb128.c siv128.c
|
||||
SOURCE[../../providers/libfips.a]=$COMMON
|
||||
|
|
|
|||
|
|
@ -0,0 +1,199 @@
|
|||
/*
|
||||
* Copyright 2022 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
|
||||
*/
|
||||
|
||||
#include <string.h>
|
||||
#include <openssl/crypto.h>
|
||||
#include "internal/endian.h"
|
||||
#include "crypto/modes.h"
|
||||
|
||||
#ifndef STRICT_ALIGNMENT
|
||||
# ifdef __GNUC__
|
||||
typedef u64 u64_a1 __attribute((__aligned__(1)));
|
||||
# else
|
||||
typedef u64 u64_a1;
|
||||
# endif
|
||||
#endif
|
||||
|
||||
int ossl_crypto_xts128gb_encrypt(const XTS128_CONTEXT *ctx,
|
||||
const unsigned char iv[16],
|
||||
const unsigned char *inp, unsigned char *out,
|
||||
size_t len, int enc)
|
||||
{
|
||||
DECLARE_IS_ENDIAN;
|
||||
union {
|
||||
u64 u[2];
|
||||
u32 d[4];
|
||||
u8 c[16];
|
||||
} tweak, scratch;
|
||||
unsigned int i;
|
||||
|
||||
if (len < 16)
|
||||
return -1;
|
||||
|
||||
memcpy(tweak.c, iv, 16);
|
||||
|
||||
(*ctx->block2) (tweak.c, tweak.c, ctx->key2);
|
||||
|
||||
if (!enc && (len % 16))
|
||||
len -= 16;
|
||||
|
||||
while (len >= 16) {
|
||||
#if defined(STRICT_ALIGNMENT)
|
||||
memcpy(scratch.c, inp, 16);
|
||||
scratch.u[0] ^= tweak.u[0];
|
||||
scratch.u[1] ^= tweak.u[1];
|
||||
#else
|
||||
scratch.u[0] = ((u64_a1 *)inp)[0] ^ tweak.u[0];
|
||||
scratch.u[1] = ((u64_a1 *)inp)[1] ^ tweak.u[1];
|
||||
#endif
|
||||
(*ctx->block1) (scratch.c, scratch.c, ctx->key1);
|
||||
#if defined(STRICT_ALIGNMENT)
|
||||
scratch.u[0] ^= tweak.u[0];
|
||||
scratch.u[1] ^= tweak.u[1];
|
||||
memcpy(out, scratch.c, 16);
|
||||
#else
|
||||
((u64_a1 *)out)[0] = scratch.u[0] ^= tweak.u[0];
|
||||
((u64_a1 *)out)[1] = scratch.u[1] ^= tweak.u[1];
|
||||
#endif
|
||||
inp += 16;
|
||||
out += 16;
|
||||
len -= 16;
|
||||
|
||||
if (len == 0)
|
||||
return 0;
|
||||
|
||||
if (IS_LITTLE_ENDIAN) {
|
||||
u8 res;
|
||||
u64 hi, lo;
|
||||
#ifdef BSWAP8
|
||||
hi = BSWAP8(tweak.u[0]);
|
||||
lo = BSWAP8(tweak.u[1]);
|
||||
#else
|
||||
u8 *p = tweak.c;
|
||||
|
||||
hi = (u64)GETU32(p) << 32 | GETU32(p + 4);
|
||||
lo = (u64)GETU32(p + 8) << 32 | GETU32(p + 12);
|
||||
#endif
|
||||
res = (u8)lo & 1;
|
||||
tweak.u[0] = (lo >> 1) | (hi << 63);
|
||||
tweak.u[1] = hi >> 1;
|
||||
if (res)
|
||||
tweak.c[15] ^= 0xe1;
|
||||
#ifdef BSWAP8
|
||||
hi = BSWAP8(tweak.u[0]);
|
||||
lo = BSWAP8(tweak.u[1]);
|
||||
#else
|
||||
p = tweak.c;
|
||||
|
||||
hi = (u64)GETU32(p) << 32 | GETU32(p + 4);
|
||||
lo = (u64)GETU32(p + 8) << 32 | GETU32(p + 12);
|
||||
#endif
|
||||
tweak.u[0] = lo;
|
||||
tweak.u[1] = hi;
|
||||
} else {
|
||||
u8 carry, res;
|
||||
carry = 0;
|
||||
for (i = 0; i < 16; ++i) {
|
||||
res = (tweak.c[i] << 7) & 0x80;
|
||||
tweak.c[i] = ((tweak.c[i] >> 1) + carry) & 0xff;
|
||||
carry = res;
|
||||
}
|
||||
if (res)
|
||||
tweak.c[0] ^= 0xe1;
|
||||
}
|
||||
}
|
||||
if (enc) {
|
||||
for (i = 0; i < len; ++i) {
|
||||
u8 c = inp[i];
|
||||
out[i] = scratch.c[i];
|
||||
scratch.c[i] = c;
|
||||
}
|
||||
scratch.u[0] ^= tweak.u[0];
|
||||
scratch.u[1] ^= tweak.u[1];
|
||||
(*ctx->block1) (scratch.c, scratch.c, ctx->key1);
|
||||
scratch.u[0] ^= tweak.u[0];
|
||||
scratch.u[1] ^= tweak.u[1];
|
||||
memcpy(out - 16, scratch.c, 16);
|
||||
} else {
|
||||
union {
|
||||
u64 u[2];
|
||||
u8 c[16];
|
||||
} tweak1;
|
||||
|
||||
if (IS_LITTLE_ENDIAN) {
|
||||
u8 res;
|
||||
u64 hi, lo;
|
||||
#ifdef BSWAP8
|
||||
hi = BSWAP8(tweak.u[0]);
|
||||
lo = BSWAP8(tweak.u[1]);
|
||||
#else
|
||||
u8 *p = tweak.c;
|
||||
|
||||
hi = (u64)GETU32(p) << 32 | GETU32(p + 4);
|
||||
lo = (u64)GETU32(p + 8) << 32 | GETU32(p + 12);
|
||||
#endif
|
||||
res = (u8)lo & 1;
|
||||
tweak1.u[0] = (lo >> 1) | (hi << 63);
|
||||
tweak1.u[1] = hi >> 1;
|
||||
if (res)
|
||||
tweak1.c[15] ^= 0xe1;
|
||||
#ifdef BSWAP8
|
||||
hi = BSWAP8(tweak1.u[0]);
|
||||
lo = BSWAP8(tweak1.u[1]);
|
||||
#else
|
||||
p = tweak1.c;
|
||||
|
||||
hi = (u64)GETU32(p) << 32 | GETU32(p + 4);
|
||||
lo = (u64)GETU32(p + 8) << 32 | GETU32(p + 12);
|
||||
#endif
|
||||
tweak1.u[0] = lo;
|
||||
tweak1.u[1] = hi;
|
||||
} else {
|
||||
u8 carry, res;
|
||||
carry = 0;
|
||||
for (i = 0; i < 16; ++i) {
|
||||
res = (tweak.c[i] << 7) & 0x80;
|
||||
tweak1.c[i] = ((tweak.c[i] >> 1) + carry) & 0xff;
|
||||
carry = res;
|
||||
}
|
||||
if (res)
|
||||
tweak1.c[0] ^= 0xe1;
|
||||
}
|
||||
#if defined(STRICT_ALIGNMENT)
|
||||
memcpy(scratch.c, inp, 16);
|
||||
scratch.u[0] ^= tweak1.u[0];
|
||||
scratch.u[1] ^= tweak1.u[1];
|
||||
#else
|
||||
scratch.u[0] = ((u64_a1 *)inp)[0] ^ tweak1.u[0];
|
||||
scratch.u[1] = ((u64_a1 *)inp)[1] ^ tweak1.u[1];
|
||||
#endif
|
||||
(*ctx->block1) (scratch.c, scratch.c, ctx->key1);
|
||||
scratch.u[0] ^= tweak1.u[0];
|
||||
scratch.u[1] ^= tweak1.u[1];
|
||||
|
||||
for (i = 0; i < len; ++i) {
|
||||
u8 c = inp[16 + i];
|
||||
out[16 + i] = scratch.c[i];
|
||||
scratch.c[i] = c;
|
||||
}
|
||||
scratch.u[0] ^= tweak.u[0];
|
||||
scratch.u[1] ^= tweak.u[1];
|
||||
(*ctx->block1) (scratch.c, scratch.c, ctx->key1);
|
||||
#if defined(STRICT_ALIGNMENT)
|
||||
scratch.u[0] ^= tweak.u[0];
|
||||
scratch.u[1] ^= tweak.u[1];
|
||||
memcpy(out, scratch.c, 16);
|
||||
#else
|
||||
((u64_a1 *)out)[0] = scratch.u[0] ^ tweak.u[0];
|
||||
((u64_a1 *)out)[1] = scratch.u[1] ^ tweak.u[1];
|
||||
#endif
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -155,6 +155,12 @@ struct xts128_context {
|
|||
block128_f block1, block2;
|
||||
};
|
||||
|
||||
/* XTS mode for SM4 algorithm specified by GB/T 17964-2021 */
|
||||
int ossl_crypto_xts128gb_encrypt(const XTS128_CONTEXT *ctx,
|
||||
const unsigned char iv[16],
|
||||
const unsigned char *inp, unsigned char *out,
|
||||
size_t len, int enc);
|
||||
|
||||
struct ccm128_context {
|
||||
union {
|
||||
u64 u[2];
|
||||
|
|
|
|||
|
|
@ -97,6 +97,7 @@ extern "C" {
|
|||
#define OSSL_CIPHER_PARAM_CTS_MODE "cts_mode" /* utf8_string */
|
||||
/* For passing the AlgorithmIdentifier parameter in DER form */
|
||||
#define OSSL_CIPHER_PARAM_ALGORITHM_ID_PARAMS "alg_id_param" /* octet_string */
|
||||
#define OSSL_CIPHER_PARAM_XTS_STANDARD "xts_standard" /* utf8_string */
|
||||
|
||||
#define OSSL_CIPHER_PARAM_TLS1_MULTIBLOCK_MAX_SEND_FRAGMENT \
|
||||
"tls1multi_maxsndfrag" /* uint */
|
||||
|
|
|
|||
|
|
@ -304,6 +304,7 @@ static const OSSL_ALGORITHM_CAPABLE deflt_ciphers[] = {
|
|||
ALG(PROV_NAMES_SM4_CTR, ossl_sm4128ctr_functions),
|
||||
ALG(PROV_NAMES_SM4_OFB, ossl_sm4128ofb128_functions),
|
||||
ALG(PROV_NAMES_SM4_CFB, ossl_sm4128cfb128_functions),
|
||||
ALG(PROV_NAMES_SM4_XTS, ossl_sm4128xts_functions),
|
||||
#endif /* OPENSSL_NO_SM4 */
|
||||
#ifndef OPENSSL_NO_CHACHA
|
||||
ALG(PROV_NAMES_ChaCha20, ossl_chacha20_functions),
|
||||
|
|
|
|||
|
|
@ -153,7 +153,9 @@ IF[{- !$disabled{sm4} -}]
|
|||
SOURCE[$SM4_GOAL]=\
|
||||
cipher_sm4.c cipher_sm4_hw.c \
|
||||
cipher_sm4_gcm.c cipher_sm4_gcm_hw.c \
|
||||
cipher_sm4_ccm.c cipher_sm4_ccm_hw.c
|
||||
cipher_sm4_ccm.c cipher_sm4_ccm_hw.c \
|
||||
cipher_sm4_xts.c cipher_sm4_xts_hw.c
|
||||
|
||||
ENDIF
|
||||
|
||||
IF[{- !$disabled{ocb} -}]
|
||||
|
|
|
|||
|
|
@ -0,0 +1,281 @@
|
|||
|
||||
/*
|
||||
* Copyright 2022 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
|
||||
*/
|
||||
|
||||
/* Dispatch functions for SM4 XTS mode */
|
||||
|
||||
#include <openssl/proverr.h>
|
||||
#include "cipher_sm4_xts.h"
|
||||
#include "prov/implementations.h"
|
||||
#include "prov/providercommon.h"
|
||||
|
||||
#define SM4_XTS_FLAGS PROV_CIPHER_FLAG_CUSTOM_IV
|
||||
#define SM4_XTS_IV_BITS 128
|
||||
#define SM4_XTS_BLOCK_BITS 8
|
||||
|
||||
/* forward declarations */
|
||||
static OSSL_FUNC_cipher_encrypt_init_fn sm4_xts_einit;
|
||||
static OSSL_FUNC_cipher_decrypt_init_fn sm4_xts_dinit;
|
||||
static OSSL_FUNC_cipher_update_fn sm4_xts_stream_update;
|
||||
static OSSL_FUNC_cipher_final_fn sm4_xts_stream_final;
|
||||
static OSSL_FUNC_cipher_cipher_fn sm4_xts_cipher;
|
||||
static OSSL_FUNC_cipher_freectx_fn sm4_xts_freectx;
|
||||
static OSSL_FUNC_cipher_dupctx_fn sm4_xts_dupctx;
|
||||
static OSSL_FUNC_cipher_set_ctx_params_fn sm4_xts_set_ctx_params;
|
||||
static OSSL_FUNC_cipher_settable_ctx_params_fn sm4_xts_settable_ctx_params;
|
||||
|
||||
/*-
|
||||
* Provider dispatch functions
|
||||
*/
|
||||
static int sm4_xts_init(void *vctx, const unsigned char *key, size_t keylen,
|
||||
const unsigned char *iv, size_t ivlen,
|
||||
const OSSL_PARAM params[], int enc)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *xctx = (PROV_SM4_XTS_CTX *)vctx;
|
||||
PROV_CIPHER_CTX *ctx = &xctx->base;
|
||||
|
||||
if (!ossl_prov_is_running())
|
||||
return 0;
|
||||
|
||||
ctx->enc = enc;
|
||||
|
||||
if (iv != NULL) {
|
||||
if (!ossl_cipher_generic_initiv(vctx, iv, ivlen))
|
||||
return 0;
|
||||
}
|
||||
if (key != NULL) {
|
||||
if (keylen != ctx->keylen) {
|
||||
ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
|
||||
return 0;
|
||||
}
|
||||
if (!ctx->hw->init(ctx, key, keylen))
|
||||
return 0;
|
||||
}
|
||||
return sm4_xts_set_ctx_params(xctx, params);
|
||||
}
|
||||
|
||||
static int sm4_xts_einit(void *vctx, const unsigned char *key, size_t keylen,
|
||||
const unsigned char *iv, size_t ivlen,
|
||||
const OSSL_PARAM params[])
|
||||
{
|
||||
return sm4_xts_init(vctx, key, keylen, iv, ivlen, params, 1);
|
||||
}
|
||||
|
||||
static int sm4_xts_dinit(void *vctx, const unsigned char *key, size_t keylen,
|
||||
const unsigned char *iv, size_t ivlen,
|
||||
const OSSL_PARAM params[])
|
||||
{
|
||||
return sm4_xts_init(vctx, key, keylen, iv, ivlen, params, 0);
|
||||
}
|
||||
|
||||
static void *sm4_xts_newctx(void *provctx, unsigned int mode, uint64_t flags,
|
||||
size_t kbits, size_t blkbits, size_t ivbits)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
|
||||
|
||||
if (ctx != NULL) {
|
||||
ossl_cipher_generic_initkey(&ctx->base, kbits, blkbits, ivbits, mode,
|
||||
flags, ossl_prov_cipher_hw_sm4_xts(kbits),
|
||||
NULL);
|
||||
}
|
||||
return ctx;
|
||||
}
|
||||
|
||||
static void sm4_xts_freectx(void *vctx)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *ctx = (PROV_SM4_XTS_CTX *)vctx;
|
||||
|
||||
ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
|
||||
OPENSSL_clear_free(ctx, sizeof(*ctx));
|
||||
}
|
||||
|
||||
static void *sm4_xts_dupctx(void *vctx)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *in = (PROV_SM4_XTS_CTX *)vctx;
|
||||
PROV_SM4_XTS_CTX *ret = NULL;
|
||||
|
||||
if (!ossl_prov_is_running())
|
||||
return NULL;
|
||||
|
||||
if (in->xts.key1 != NULL) {
|
||||
if (in->xts.key1 != &in->ks1)
|
||||
return NULL;
|
||||
}
|
||||
if (in->xts.key2 != NULL) {
|
||||
if (in->xts.key2 != &in->ks2)
|
||||
return NULL;
|
||||
}
|
||||
ret = OPENSSL_malloc(sizeof(*ret));
|
||||
if (ret == NULL)
|
||||
return NULL;
|
||||
in->base.hw->copyctx(&ret->base, &in->base);
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int sm4_xts_cipher(void *vctx, unsigned char *out, size_t *outl,
|
||||
size_t outsize, const unsigned char *in, size_t inl)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *ctx = (PROV_SM4_XTS_CTX *)vctx;
|
||||
|
||||
if (!ossl_prov_is_running()
|
||||
|| ctx->xts.key1 == NULL
|
||||
|| ctx->xts.key2 == NULL
|
||||
|| !ctx->base.iv_set
|
||||
|| out == NULL
|
||||
|| in == NULL
|
||||
|| inl < SM4_BLOCK_SIZE)
|
||||
return 0;
|
||||
|
||||
/*
|
||||
* Impose a limit of 2^20 blocks per data unit as specified by
|
||||
* IEEE Std 1619-2018. The earlier and obsolete IEEE Std 1619-2007
|
||||
* indicated that this was a SHOULD NOT rather than a MUST NOT.
|
||||
* NIST SP 800-38E mandates the same limit.
|
||||
*/
|
||||
if (inl > XTS_MAX_BLOCKS_PER_DATA_UNIT * SM4_BLOCK_SIZE) {
|
||||
ERR_raise(ERR_LIB_PROV, PROV_R_XTS_DATA_UNIT_IS_TOO_LARGE);
|
||||
return 0;
|
||||
}
|
||||
if (ctx->xts_standard) {
|
||||
if (ctx->stream != NULL)
|
||||
(*ctx->stream)(in, out, inl, ctx->xts.key1, ctx->xts.key2,
|
||||
ctx->base.iv);
|
||||
else if (CRYPTO_xts128_encrypt(&ctx->xts, ctx->base.iv, in, out, inl,
|
||||
ctx->base.enc))
|
||||
return 0;
|
||||
} else {
|
||||
if (ctx->stream_gb != NULL)
|
||||
(*ctx->stream_gb)(in, out, inl, ctx->xts.key1, ctx->xts.key2,
|
||||
ctx->base.iv);
|
||||
else if (ossl_crypto_xts128gb_encrypt(&ctx->xts, ctx->base.iv, in, out,
|
||||
inl, ctx->base.enc))
|
||||
return 0;
|
||||
}
|
||||
*outl = inl;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int sm4_xts_stream_update(void *vctx, unsigned char *out, size_t *outl,
|
||||
size_t outsize, const unsigned char *in,
|
||||
size_t inl)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *ctx = (PROV_SM4_XTS_CTX *)vctx;
|
||||
|
||||
if (outsize < inl) {
|
||||
ERR_raise(ERR_LIB_PROV, PROV_R_OUTPUT_BUFFER_TOO_SMALL);
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!sm4_xts_cipher(ctx, out, outl, outsize, in, inl)) {
|
||||
ERR_raise(ERR_LIB_PROV, PROV_R_CIPHER_OPERATION_FAILED);
|
||||
return 0;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
static int sm4_xts_stream_final(void *vctx, unsigned char *out, size_t *outl,
|
||||
size_t outsize)
|
||||
{
|
||||
if (!ossl_prov_is_running())
|
||||
return 0;
|
||||
*outl = 0;
|
||||
return 1;
|
||||
}
|
||||
|
||||
static const OSSL_PARAM sm4_xts_known_settable_ctx_params[] = {
|
||||
OSSL_PARAM_utf8_string(OSSL_CIPHER_PARAM_XTS_STANDARD, NULL, 0),
|
||||
OSSL_PARAM_END
|
||||
};
|
||||
|
||||
static const OSSL_PARAM *sm4_xts_settable_ctx_params(ossl_unused void *cctx,
|
||||
ossl_unused void *provctx)
|
||||
{
|
||||
return sm4_xts_known_settable_ctx_params;
|
||||
}
|
||||
|
||||
static int sm4_xts_set_ctx_params(void *vxctx, const OSSL_PARAM params[])
|
||||
{
|
||||
PROV_SM4_XTS_CTX *xctx = (PROV_SM4_XTS_CTX *)vxctx;
|
||||
const OSSL_PARAM *p;
|
||||
|
||||
if (params == NULL)
|
||||
return 1;
|
||||
|
||||
/*-
|
||||
* Sets the XTS standard to use with SM4-XTS algorithm.
|
||||
*
|
||||
* Must be utf8 string "GB" or "IEEE",
|
||||
* "GB" means the GB/T 17964-2021 standard
|
||||
* "IEEE" means the IEEE Std 1619-2007 standard
|
||||
*/
|
||||
p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_XTS_STANDARD);
|
||||
|
||||
if (p != NULL) {
|
||||
const char *xts_standard = NULL;
|
||||
|
||||
if (p->data_type != OSSL_PARAM_UTF8_STRING)
|
||||
return 0;
|
||||
|
||||
if (!OSSL_PARAM_get_utf8_string_ptr(p, &xts_standard)) {
|
||||
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
|
||||
return 0;
|
||||
}
|
||||
if (OPENSSL_strcasecmp(xts_standard, "GB") == 0) {
|
||||
xctx->xts_standard = 0;
|
||||
} else if (OPENSSL_strcasecmp(xts_standard, "IEEE") == 0) {
|
||||
xctx->xts_standard = 1;
|
||||
} else {
|
||||
ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
#define IMPLEMENT_cipher(lcmode, UCMODE, kbits, flags) \
|
||||
static OSSL_FUNC_cipher_get_params_fn sm4_##kbits##_##lcmode##_get_params; \
|
||||
static int sm4_##kbits##_##lcmode##_get_params(OSSL_PARAM params[]) \
|
||||
{ \
|
||||
return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
|
||||
flags, 2 * kbits, SM4_XTS_BLOCK_BITS,\
|
||||
SM4_XTS_IV_BITS); \
|
||||
} \
|
||||
static OSSL_FUNC_cipher_newctx_fn sm4_##kbits##_xts_newctx; \
|
||||
static void *sm4_##kbits##_xts_newctx(void *provctx) \
|
||||
{ \
|
||||
return sm4_xts_newctx(provctx, EVP_CIPH_##UCMODE##_MODE, flags, 2 * kbits, \
|
||||
SM4_XTS_BLOCK_BITS, SM4_XTS_IV_BITS); \
|
||||
} \
|
||||
const OSSL_DISPATCH ossl_sm4##kbits##xts_functions[] = { \
|
||||
{ OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))sm4_##kbits##_xts_newctx }, \
|
||||
{ OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))sm4_xts_einit }, \
|
||||
{ OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))sm4_xts_dinit }, \
|
||||
{ OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))sm4_xts_stream_update }, \
|
||||
{ OSSL_FUNC_CIPHER_FINAL, (void (*)(void))sm4_xts_stream_final }, \
|
||||
{ OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))sm4_xts_cipher }, \
|
||||
{ OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))sm4_xts_freectx }, \
|
||||
{ OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))sm4_xts_dupctx }, \
|
||||
{ OSSL_FUNC_CIPHER_GET_PARAMS, \
|
||||
(void (*)(void))sm4_##kbits##_##lcmode##_get_params }, \
|
||||
{ OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
|
||||
(void (*)(void))ossl_cipher_generic_gettable_params }, \
|
||||
{ OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
|
||||
(void (*)(void))ossl_cipher_generic_get_ctx_params }, \
|
||||
{ OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
|
||||
(void (*)(void))ossl_cipher_generic_gettable_ctx_params }, \
|
||||
{ OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
|
||||
(void (*)(void))sm4_xts_set_ctx_params }, \
|
||||
{ OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
|
||||
(void (*)(void))sm4_xts_settable_ctx_params }, \
|
||||
{ 0, NULL } \
|
||||
}
|
||||
/* ossl_sm4128xts_functions */
|
||||
IMPLEMENT_cipher(xts, XTS, 128, SM4_XTS_FLAGS);
|
||||
|
|
@ -0,0 +1,46 @@
|
|||
/*
|
||||
* Copyright 2022 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
|
||||
*/
|
||||
|
||||
#include <crypto/sm4.h>
|
||||
#include "prov/ciphercommon.h"
|
||||
#include "crypto/sm4_platform.h"
|
||||
|
||||
PROV_CIPHER_FUNC(void, xts_stream,
|
||||
(const unsigned char *in, unsigned char *out, size_t len,
|
||||
const SM4_KEY *key1, const SM4_KEY *key2,
|
||||
const unsigned char iv[16]));
|
||||
|
||||
typedef struct prov_sm4_xts_ctx_st {
|
||||
/* Must be first */
|
||||
PROV_CIPHER_CTX base;
|
||||
|
||||
/* SM4 key schedules to use */
|
||||
union {
|
||||
OSSL_UNION_ALIGN;
|
||||
SM4_KEY ks;
|
||||
} ks1, ks2;
|
||||
|
||||
/*-
|
||||
* XTS standard to use with SM4-XTS algorithm
|
||||
*
|
||||
* Must be 0 or 1,
|
||||
* 0 for XTS mode specified by GB/T 17964-2021
|
||||
* 1 for XTS mode specified by IEEE Std 1619-2007
|
||||
*/
|
||||
int xts_standard;
|
||||
|
||||
XTS128_CONTEXT xts;
|
||||
|
||||
/* Stream function for XTS mode specified by GB/T 17964-2021 */
|
||||
OSSL_xts_stream_fn stream_gb;
|
||||
/* Stream function for XTS mode specified by IEEE Std 1619-2007 */
|
||||
OSSL_xts_stream_fn stream;
|
||||
} PROV_SM4_XTS_CTX;
|
||||
|
||||
const PROV_CIPHER_HW *ossl_prov_cipher_hw_sm4_xts(size_t keybits);
|
||||
|
|
@ -0,0 +1,89 @@
|
|||
/*
|
||||
* Copyright 2022 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
|
||||
*/
|
||||
|
||||
#include "cipher_sm4_xts.h"
|
||||
|
||||
#define XTS_SET_KEY_FN(fn_set_enc_key, fn_set_dec_key, \
|
||||
fn_block_enc, fn_block_dec, \
|
||||
fn_stream_enc, fn_stream_dec, \
|
||||
fn_stream_gb_enc, fn_stream_gb_dec) { \
|
||||
size_t bytes = keylen / 2; \
|
||||
\
|
||||
if (ctx->enc) { \
|
||||
fn_set_enc_key(key, &xctx->ks1.ks); \
|
||||
xctx->xts.block1 = (block128_f)fn_block_enc; \
|
||||
} else { \
|
||||
fn_set_dec_key(key, &xctx->ks1.ks); \
|
||||
xctx->xts.block1 = (block128_f)fn_block_dec; \
|
||||
} \
|
||||
fn_set_enc_key(key + bytes, &xctx->ks2.ks); \
|
||||
xctx->xts.block2 = (block128_f)fn_block_enc; \
|
||||
xctx->xts.key1 = &xctx->ks1; \
|
||||
xctx->xts.key2 = &xctx->ks2; \
|
||||
xctx->stream = ctx->enc ? fn_stream_enc : fn_stream_dec; \
|
||||
xctx->stream_gb = ctx->enc ? fn_stream_gb_enc : fn_stream_gb_dec; \
|
||||
}
|
||||
|
||||
static int cipher_hw_sm4_xts_generic_initkey(PROV_CIPHER_CTX *ctx,
|
||||
const unsigned char *key,
|
||||
size_t keylen)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *xctx = (PROV_SM4_XTS_CTX *)ctx;
|
||||
OSSL_xts_stream_fn stream_enc = NULL;
|
||||
OSSL_xts_stream_fn stream_dec = NULL;
|
||||
OSSL_xts_stream_fn stream_gb_enc = NULL;
|
||||
OSSL_xts_stream_fn stream_gb_dec = NULL;
|
||||
#ifdef HWSM4_CAPABLE
|
||||
if (HWSM4_CAPABLE) {
|
||||
XTS_SET_KEY_FN(HWSM4_set_encrypt_key, HWSM4_set_decrypt_key,
|
||||
HWSM4_encrypt, HWSM4_decrypt, stream_enc, stream_dec,
|
||||
stream_gb_enc, stream_gb_dec);
|
||||
return 1;
|
||||
} else
|
||||
#endif /* HWSM4_CAPABLE */
|
||||
#ifdef VPSM4_CAPABLE
|
||||
if (VPSM4_CAPABLE) {
|
||||
XTS_SET_KEY_FN(vpsm4_set_encrypt_key, vpsm4_set_decrypt_key,
|
||||
vpsm4_encrypt, vpsm4_decrypt, stream_enc, stream_dec,
|
||||
stream_gb_enc, stream_gb_dec);
|
||||
return 1;
|
||||
} else
|
||||
#endif /* VPSM4_CAPABLE */
|
||||
{
|
||||
(void)0;
|
||||
}
|
||||
{
|
||||
XTS_SET_KEY_FN(ossl_sm4_set_key, ossl_sm4_set_key, ossl_sm4_encrypt,
|
||||
ossl_sm4_decrypt, stream_enc, stream_dec, stream_gb_enc,
|
||||
stream_gb_dec);
|
||||
}
|
||||
return 1;
|
||||
}
|
||||
|
||||
static void cipher_hw_sm4_xts_copyctx(PROV_CIPHER_CTX *dst,
|
||||
const PROV_CIPHER_CTX *src)
|
||||
{
|
||||
PROV_SM4_XTS_CTX *sctx = (PROV_SM4_XTS_CTX *)src;
|
||||
PROV_SM4_XTS_CTX *dctx = (PROV_SM4_XTS_CTX *)dst;
|
||||
|
||||
*dctx = *sctx;
|
||||
dctx->xts.key1 = &dctx->ks1.ks;
|
||||
dctx->xts.key2 = &dctx->ks2.ks;
|
||||
}
|
||||
|
||||
|
||||
static const PROV_CIPHER_HW sm4_generic_xts = {
|
||||
cipher_hw_sm4_xts_generic_initkey,
|
||||
NULL,
|
||||
cipher_hw_sm4_xts_copyctx
|
||||
};
|
||||
const PROV_CIPHER_HW *ossl_prov_cipher_hw_sm4_xts(size_t keybits)
|
||||
{
|
||||
return &sm4_generic_xts;
|
||||
}
|
||||
|
|
@ -185,6 +185,7 @@ extern const OSSL_DISPATCH ossl_sm4128cbc_functions[];
|
|||
extern const OSSL_DISPATCH ossl_sm4128ctr_functions[];
|
||||
extern const OSSL_DISPATCH ossl_sm4128ofb128_functions[];
|
||||
extern const OSSL_DISPATCH ossl_sm4128cfb128_functions[];
|
||||
extern const OSSL_DISPATCH ossl_sm4128xts_functions[];
|
||||
#endif /* OPENSSL_NO_SM4 */
|
||||
#ifndef OPENSSL_NO_RC5
|
||||
extern const OSSL_DISPATCH ossl_rc5128ecb_functions[];
|
||||
|
|
|
|||
|
|
@ -167,6 +167,7 @@
|
|||
#define PROV_NAMES_SM4_CFB "SM4-CFB:SM4-CFB128:1.2.156.10197.1.104.4"
|
||||
#define PROV_NAMES_SM4_GCM "SM4-GCM:1.2.156.10197.1.104.8"
|
||||
#define PROV_NAMES_SM4_CCM "SM4-CCM:1.2.156.10197.1.104.9"
|
||||
#define PROV_NAMES_SM4_XTS "SM4-XTS:1.2.156.10197.1.104.10"
|
||||
#define PROV_NAMES_ChaCha20 "ChaCha20"
|
||||
#define PROV_NAMES_ChaCha20_Poly1305 "ChaCha20-Poly1305"
|
||||
#define PROV_NAMES_CAST5_ECB "CAST5-ECB"
|
||||
|
|
|
|||
Loading…
Reference in New Issue