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786d6f020511a1596441e35719829eee57ee2d65
GmSSL/engines/e_gmi.c
Zhi Guan 27bde477a5 first step of v2 final release
2017-11-05 21:00:36 +08:00

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/*
* Support for ZHAOXIN GMI (GuoMi Instruction)
* Written by Yun Shen (yunshen@via-alliance.com) and
* Kai Li <kelvinkli@via-alliance.com>
*/
/* ====================================================================
* Copyright (c) 1999-2016 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
* licensing@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 2016 Shanghai Zhaoxin Semiconductor Co., Ltd. ALL RIGHTS RESERVED.
*/
#include <stdio.h>
#include <string.h>
#include <openssl/opensslconf.h>
#include <openssl/crypto.h>
#include <openssl/engine.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
#include <openssl/aes.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#include <openssl/modes.h>
#include "../crypto/evp/evp_locl.h"
/* gmi sm3 header */
# define SM3_LONG unsigned int
# define SM3_LBLOCK 16
# define SM3_CBLOCK (SM3_LBLOCK*4)/* SHA treats input data as a
* contiguous array of 32 bit wide
* big-endian values. */
# define SM3_LAST_BLOCK (SM3_CBLOCK-8)
# define SM3_DIGEST_LENGTH 32
typedef struct SM3state_st {
SM3_LONG h[8];
SM3_LONG Nl, Nh;
SM3_LONG data[SM3_LBLOCK];
unsigned int num, md_len;
} SM3_CTX;
/* gmi sm4 header */
# define SM4_ENCRYPT 1
# define SM4_DECRYPT 0
/*
* Because array size can't be a const in C, the following two are macros.
* Both sizes are in bytes.
*/
#define SM4_BLOCK_SIZE 16
#define SM4_KEY_SIZE 16
/* This should be a hidden type, but EVP requires that the size be known */
struct sm4_key_st {
# ifdef SM4_LONG
unsigned long rd_key[32];
# else
unsigned int rd_key[32];
# endif
};
typedef struct sm4_key_st SM4_KEY;
#define NID_sm3WithRSAEncryption NID_sm3
#define NID_sm4_ecb NID_sms4_ecb
#define NID_sm4_cbc NID_sms4_cbc
#define NID_sm4_cfb NID_sms4_cfb8
#define NID_sm4_ofb NID_sms4_ofb128
#define NID_sm4_ctr NID_sms4_ctr
#include "../crypto/include/internal/evp_int.h"
#ifndef OPENSSL_NO_HW
# ifndef OPENSSL_NO_HW_GMI
/* Attempt to have a single source for both 0.9.7 and 0.9.8 :-) */
# if (OPENSSL_VERSION_NUMBER >= 0x00908000L)
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
# define DYNAMIC_ENGINE
# endif
# elif (OPENSSL_VERSION_NUMBER >= 0x00907000L)
# ifdef ENGINE_DYNAMIC_SUPPORT
# define DYNAMIC_ENGINE
# endif
# else
# error "Only OpenSSL >= 0.9.7 is supported"
# endif
/*
* ZHAOXIN GMI is available *ONLY* on some x86 CPUs. Not only that it
* doesn't exist elsewhere, but it even can't be compiled on other platforms!
*/
# undef COMPILE_HW_GMI
# if !defined(I386_ONLY) && !defined(OPENSSL_NO_ASM)
# if defined(__i386__) || defined(__i386) || \
defined(__x86_64__) || defined(__x86_64) || \
defined(_M_IX86) || defined(_M_AMD64) || defined(_M_X64) || \
defined(__INTEL__)
# define COMPILE_HW_GMI
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
static ENGINE *ENGINE_gmi(void);
# endif
# endif
# endif
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
void engine_load_gmi_int(void);
void engine_load_gmi_int(void)
{
/* On non-x86 CPUs it just returns. */
# ifdef COMPILE_HW_GMI
ENGINE *toadd = ENGINE_gmi();
if (!toadd)
return;
ENGINE_add(toadd);
ENGINE_free(toadd);
ERR_clear_error();
# endif
}
# endif
# ifdef COMPILE_HW_GMI
/* Function for ENGINE detection and control */
static int gmi_available(void);
static int gmi_init(ENGINE *e);
/* Cipher Stuff */
static int gmi_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
const int **nids, int nid);
static int gmi_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid);
/* Engine names */
static const char *gmi_id = "gmi";
static char gmi_name[100];
/* Available features */
static int gmi_use_ccs = 0; /* CCS */
/* ===== Engine "management" functions ===== */
/* Prepare the ENGINE structure for registration */
static int gmi_bind_helper(ENGINE *e)
{
/* Check available features */
gmi_available();
/* Generate a nice engine name with available features */
BIO_snprintf(gmi_name, sizeof(gmi_name),
"ZX GMI (%s)",
gmi_use_ccs ? "CCS" : "no-CCS");
/* Register everything or return with an error */
if (!ENGINE_set_id(e, gmi_id) ||
!ENGINE_set_name(e, gmi_name) ||
!ENGINE_set_init_function(e, gmi_init) ||
(gmi_use_ccs && !ENGINE_set_ciphers(e, gmi_ciphers)) ||
(gmi_use_ccs && !ENGINE_set_digests(e, gmi_digests))) {
return 0;
}
/* Everything looks good */
return 1;
}
# ifdef OPENSSL_NO_DYNAMIC_ENGINE
/* Constructor */
static ENGINE *ENGINE_gmi(void)
{
ENGINE *eng = ENGINE_new();
if (eng == NULL) {
return NULL;
}
if (!gmi_bind_helper(eng)) {
ENGINE_free(eng);
return NULL;
}
return eng;
}
# endif
/* Check availability of the engine */
static int gmi_init(ENGINE *e)
{
return (gmi_use_ccs);
}
/*
* This stuff is needed if this ENGINE is being compiled into a
* self-contained shared-library.
*/
# ifdef DYNAMIC_ENGINE
static int gmi_bind_fn(ENGINE *e, const char *id)
{
if (id && (strcmp(id, gmi_id) != 0)) {
return 0;
}
if (!gmi_bind_helper(e)) {
return 0;
}
return 1;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
IMPLEMENT_DYNAMIC_BIND_FN(gmi_bind_fn)
# endif /* DYNAMIC_ENGINE */
/* ===== Here comes the "real" engine ===== */
#define CCS_ENCRYPT_FUNC_SM4 0x10
#define CCS_ENCRYPT_MODE_ECB 0x1
#define CCS_ENCRYPT_MODE_CBC 0x2
#define CCS_ENCRYPT_MODE_CFB 0x4
#define CCS_ENCRYPT_MODE_OFB 0x8
#define CCS_ENCRYPT_MODE_CTR 0x10
/*
* Here we store the status information relevant to the current context.
*/
/*
* BIG FAT WARNING: Inline assembler in GMI_XCRYPT_ASM() depends on
* the order of items in this structure. Don't blindly modify, reorder,
* etc!
*/
struct gmi_cipher_data {
unsigned char iv[SM4_BLOCK_SIZE]; /* Initialization vector */
union {
unsigned int pad[4];
struct {
int encdec:1;
int func:5;
int mode:5;
int digest:1;
} b;
} cword; /* Control word */
SM4_KEY ks; /* Encryption key */
};
/* Interface to assembler module */
unsigned int zx_gmi_capability();
void gmi_sm3_oneshot(void *ctx, const void *inp, size_t len);
void gmi_sm3_blocks(void *ctx, const void *inp, size_t len);
void gmi_reload_key();
void gmi_verify_context(struct gmi_cipher_data *ctx);
void gmi_sm4_block(void *out, const void *inp,
struct gmi_cipher_data *ctx);
int gmi_ecb_encrypt(void *out, const void *inp,
struct gmi_cipher_data *ctx, size_t len);
int gmi_cbc_encrypt(void *out, const void *inp,
struct gmi_cipher_data *ctx, size_t len);
int gmi_ctr32_encrypt(void *out, const void *inp,
struct gmi_cipher_data *ctx, size_t len);
/*
* Load supported features of the CPU to see if the PadLock is available.
*/
static int gmi_available(void)
{
int zx_gmi_use_ccs = 0;
//unsigned int edx; //original code
unsigned int edx = 0;
/* Fill up some flags */
gmi_use_ccs = ((edx & (0x3 << 4)) == (0x3 << 4));
edx = zx_gmi_capability();
zx_gmi_use_ccs = ((edx & (0x3 << 6)) == (0x3 << 6));
gmi_use_ccs = gmi_use_ccs | zx_gmi_use_ccs;
return gmi_use_ccs;
}
#define SM3_MAKE_STRING(c, s) do { \
unsigned long ll; \
unsigned int nn; \
for (nn=0;nn<SM3_DIGEST_LENGTH/4;nn++) \
{ ll=(c)->h[nn]; (void)HOST_l2c(ll,(s)); } \
\
} while (0)
#define HOST_l2c(l,c) ({ unsigned int r=(l); \
asm ("bswapl %0":"=r"(r):"0"(r)); \
*((unsigned int *)(c))=r; (c)+=4; r; })
static int gmi_sm3_init(EVP_MD_CTX *ctx)
{
BIO *b = BIO_new_fp(stdout, BIO_NOCLOSE|BIO_FP_TEXT);
BIO_printf(b, "%s\n", __FUNCTION__);
SM3_CTX *c = (SM3_CTX *)EVP_MD_CTX_md_data(ctx);
/* set the IV in Big-Endian */
c->h[0]=0x6f168073UL;
c->h[1]=0xb9b21449UL;
c->h[2]=0xd7422417UL;
c->h[3]=0x00068adaUL;
c->h[4]=0xbc306fa9UL;
c->h[5]=0xaa383116UL;
c->h[6]=0x4dee8de3UL;
c->h[7]=0x4e0efbb0UL;
c->md_len = SM3_DIGEST_LENGTH;
c->num = 0; //
BIO_free(b);
return 1;
}
static int gmi_sm3_update(EVP_MD_CTX *ctx, const void *data_, size_t len)
{
const unsigned char *data = data_;
unsigned char *p;
SM3_LONG l;
size_t n;
SM3_CTX *c = (SM3_CTX *)EVP_MD_CTX_md_data(ctx);
if (len == 0)
return 1;
l = (c->Nl + (((SM3_LONG) len) << 3)) & 0xffffffffUL;
if (l < c->Nl) /* overflow */
c->Nh++;
c->Nh += (SM3_LONG) (len >> 29); /* might cause compiler warning on
* 16-bit */
c->Nl = l;
n = c->num;
if (n != 0) {
p = (unsigned char *)c->data;
if (len >= SM3_CBLOCK || len + n >= SM3_CBLOCK) {
memcpy(p + n, data, SM3_CBLOCK - n);
gmi_sm3_blocks(c->h, p, 1);
n = SM3_CBLOCK - n;
data += n;
len -= n;
c->num = 0;
memset(p, 0, SM3_CBLOCK); /* keep it zeroed */
} else {
memcpy(p + n, data, len);
c->num += (unsigned int)len;
return 1;
}
}
n = len / SM3_CBLOCK;
if (n > 0) {
gmi_sm3_blocks(c->h, data, n);
n *= SM3_CBLOCK;
data += n;
len -= n;
}
if (len != 0) {
p = (unsigned char *)c->data;
c->num = (unsigned int)len;
memcpy(p, data, len);
}
return 1;
}
static int gmi_sm3_final(EVP_MD_CTX *ctx, unsigned char *md)
{
SM3_CTX *c = (SM3_CTX *)EVP_MD_CTX_md_data(ctx);
unsigned char *p = (unsigned char *)c->data;
size_t n = c->num;
p[n] = 0x80; /* there is always room for one */
n++;
if (n > (SM3_CBLOCK - 8)) {
memset(p + n, 0, SM3_CBLOCK - n);
n = 0;
gmi_sm3_blocks(c->h, p, 1);
}
memset(p + n, 0, SM3_CBLOCK - 8 - n);
p += SM3_CBLOCK - 8;
(void)HOST_l2c(c->Nh, p);
(void)HOST_l2c(c->Nl, p);
p -= SM3_CBLOCK;
gmi_sm3_blocks(c->h, p, 1);
c->num = 0;
memset(p, 0, SM3_CBLOCK);
memcpy(md, c->h, c->md_len);
return 1;
}
/* List of supported ciphers. */
static const int gmi_digest_nids[] = {
NID_sm3,
0
};
static const EVP_MD digest_sm3= {
NID_sm3,
NID_sm3WithRSAEncryption,
SM3_DIGEST_LENGTH,
EVP_MD_FLAG_DIGALGID_ABSENT,
gmi_sm3_init,
gmi_sm3_update,
gmi_sm3_final,
NULL,
NULL,
SM3_CBLOCK,
sizeof(EVP_MD *) + sizeof(SM3_CTX),
};
static int gmi_digests(ENGINE *e, const EVP_MD **digest,
const int **nids, int nid)
{
int ok = 1;
if (!digest) {
/* We are returning a list of supported nids */
*nids = gmi_digest_nids;
return (sizeof(gmi_digest_nids) -
1) / sizeof(gmi_digest_nids[0]);
}
/* We are being asked for a specific digest */
switch (nid) {
case NID_sm3:
*digest = &digest_sm3;
break;
default:
ok = 0;
*digest = NULL;
break;
}
return ok;
}
/* ======== GX6 ===================== */
# define NEAREST_ALIGNED(ptr) ( (unsigned char *)(ptr) + \
( (0x10 - ((size_t)(ptr) & 0x0F)) & 0x0F ) )
# define ALIGNED_CIPHER_DATA(ctx) ((struct gmi_cipher_data *)\
NEAREST_ALIGNED(EVP_CIPHER_CTX_get_cipher_data(ctx)))
/* Prepare the encryption key for PadLock usage */
static int
gmi_sm4_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
const unsigned char *iv, int enc)
{
struct gmi_cipher_data *cdata;
unsigned long mode = EVP_CIPHER_CTX_mode(ctx);
if (key == NULL)
return 0; /* ERROR */
cdata = ALIGNED_CIPHER_DATA(ctx);
memset(cdata, 0, sizeof(*cdata));
/* Prepare Control word. */
if (mode == EVP_CIPH_OFB_MODE || mode == EVP_CIPH_CTR_MODE)
cdata->cword.b.encdec = 0;
else
cdata->cword.b.encdec = (ctx->encrypt == 0);
cdata->cword.b.func = CCS_ENCRYPT_FUNC_SM4;
cdata->cword.b.mode = 1<<(mode-1);;
cdata->cword.b.digest = 0;
if(iv != NULL)
{
memcpy(cdata->iv, iv, SM4_BLOCK_SIZE);
}
memcpy(cdata->ks.rd_key, key, SM4_KEY_SIZE);
/*
* This is done to cover for cases when user reuses the
* context for new key. The catch is that if we don't do
* this, gmi_eas_cipher might proceed with old key...
*/
gmi_reload_key();
return 1;
}
void gmi_sm4_encrypt(unsigned char *out, const unsigned char *in, struct gmi_cipher_data *ctx, size_t len);
void gmi_sm4_ecb_enc(unsigned char *in, unsigned char *out, unsigned char *key);
static int
gmi_sm4_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
gmi_sm4_encrypt(out_arg, in_arg, cdata, nbytes);
return 1;
}
static int
gmi_sm4_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
memcpy(cdata->iv, ctx->iv, SM4_BLOCK_SIZE);
gmi_sm4_encrypt(out_arg, in_arg, cdata, nbytes);
memcpy(ctx->iv, cdata->iv, SM4_BLOCK_SIZE);
return 1;
}
#if 0
static int
gmi_sm4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
unsigned int num = ctx->num;
CRYPTO_ctr128_encrypt(in_arg, out_arg, nbytes,
cdata->ks.rd_key, ctx->iv, ctx->buf, &num,
(block128_f) gmi_sm4_ecb_enc);
ctx->num = (size_t)num;
return 1;
}
#endif
#if 1
static int
gmi_sm4_ctr_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
unsigned int num = ctx->num;
memcpy(cdata->iv, ctx->iv, SM4_BLOCK_SIZE);
gmi_sm4_encrypt(out_arg, in_arg, cdata, nbytes);
ctx->num = (size_t)num;
return 1;
}
#endif
static int
gmi_sm4_cfb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
#if 0
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
CRYPTO_cfb128_encrypt(in_arg, out_arg, nbytes, cdata->ks.rd_key,
ctx->iv, &ctx->num, ctx->encrypt,
(block128_f)gmi_sm4_ecb_enc);
#else
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
memcpy(cdata->iv, ctx->iv, SM4_BLOCK_SIZE);
gmi_sm4_encrypt(out_arg, in_arg, cdata, nbytes);
memcpy(ctx->iv, cdata->iv, SM4_BLOCK_SIZE);
#endif
return 1;
}
static int
gmi_sm4_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out_arg,
const unsigned char *in_arg, size_t nbytes)
{
#if 0
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
CRYPTO_ofb128_encrypt(in_arg, out_arg, nbytes,cdata->ks.rd_key,
ctx->iv, &ctx->num, (block128_f) gmi_sm4_ecb_enc);
#else
struct gmi_cipher_data *cdata = ALIGNED_CIPHER_DATA(ctx);
memcpy(cdata->iv, ctx->iv, SM4_BLOCK_SIZE);
gmi_sm4_encrypt(out_arg, in_arg, cdata, nbytes);
memcpy(ctx->iv, cdata->iv, SM4_BLOCK_SIZE);
#endif
return 1;
}
#define EVP_SM4_CIPHER_block_size_ECB SM4_BLOCK_SIZE
#define EVP_SM4_CIPHER_block_size_CBC SM4_BLOCK_SIZE
#define EVP_SM4_CIPHER_block_size_OFB 1
#define EVP_SM4_CIPHER_block_size_CFB 1
#define EVP_SM4_CIPHER_block_size_CTR 1
/*
* Declaring so many ciphers by hand would be a pain. Instead introduce a bit
* of preprocessor magic :-)
*/
# define DECLARE_SM4_EVP(lmode,umode) \
static EVP_CIPHER *_hidden_sm4_##lmode = NULL; \
static const EVP_CIPHER *gmi_sm4_##lmode(void) \
{ \
if (_hidden_sm4_##lmode == NULL \
&& ((_hidden_sm4_##lmode = \
EVP_CIPHER_meth_new(NID_sm4_##lmode, \
EVP_SM4_CIPHER_block_size_##umode, \
SM4_KEY_SIZE)) == NULL \
|| !EVP_CIPHER_meth_set_iv_length(_hidden_sm4_##lmode, \
SM4_BLOCK_SIZE) \
|| !EVP_CIPHER_meth_set_flags(_hidden_sm4_##lmode, \
0 | EVP_CIPH_##umode##_MODE) \
|| !EVP_CIPHER_meth_set_init(_hidden_sm4_##lmode, \
gmi_sm4_init_key) \
|| !EVP_CIPHER_meth_set_do_cipher(_hidden_sm4_##lmode, \
gmi_sm4_##lmode##_cipher) \
|| !EVP_CIPHER_meth_set_impl_ctx_size(_hidden_sm4_##lmode, \
sizeof(struct gmi_cipher_data) + 16) \
|| !EVP_CIPHER_meth_set_set_asn1_params(_hidden_sm4_##lmode, \
EVP_CIPHER_set_asn1_iv) \
|| !EVP_CIPHER_meth_set_get_asn1_params(_hidden_sm4_##lmode, \
EVP_CIPHER_get_asn1_iv))) { \
EVP_CIPHER_meth_free(_hidden_sm4_##lmode); \
_hidden_sm4_##lmode = NULL; \
} \
return _hidden_sm4_##lmode; \
}
DECLARE_SM4_EVP(ecb, ECB);
DECLARE_SM4_EVP(cbc, CBC);
DECLARE_SM4_EVP(ctr, CTR);
DECLARE_SM4_EVP(cfb, CFB);
DECLARE_SM4_EVP(ofb, OFB);
/* List of supported ciphers. */
static const int gmi_cipher_nids[] = {
NID_sm4_ecb,
NID_sm4_cbc,
NID_sm4_cfb,
NID_sm4_ofb,
NID_sm4_ctr,
0
};
static int gmi_cipher_nids_num = (sizeof(gmi_cipher_nids) /
sizeof(gmi_cipher_nids[0]));
static int
gmi_ciphers(ENGINE *e, const EVP_CIPHER **cipher, const int **nids,
int nid)
{
/* No specific cipher => return a list of supported nids ... */
if (!cipher) {
*nids = gmi_cipher_nids;
return gmi_cipher_nids_num;
}
/* ... or the requested "cipher" otherwise */
switch (nid) {
case NID_sm4_ecb:
*cipher = gmi_sm4_ecb();
break;
case NID_sm4_cbc:
*cipher = gmi_sm4_cbc();
break;
case NID_sm4_cfb:
*cipher = gmi_sm4_cfb();
break;
case NID_sm4_ofb:
*cipher = gmi_sm4_ofb();
break;
case NID_sm4_ctr:
*cipher = gmi_sm4_ctr();
break;
default:
/* Sorry, we don't support this NID */
*cipher = NULL;
return 0;
}
return 1;
}
# endif /* COMPILE_HW_GMI */
# endif /* !OPENSSL_NO_HW_GMI */
#endif /* !OPENSSL_NO_HW */
#if defined(OPENSSL_NO_HW) || defined(OPENSSL_NO_HW_GMI) \
|| !defined(COMPILE_HW_GMI)
# ifndef OPENSSL_NO_DYNAMIC_ENGINE
OPENSSL_EXPORT
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
OPENSSL_EXPORT
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns)
{
return 0;
}
IMPLEMENT_DYNAMIC_CHECK_FN()
# endif
#endif
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