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Zhi Guan
2017-02-14 16:12:29 +08:00
parent d2254170b8
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crypto/sm2/sm2_asn1.c
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/* crypto/sm2/sm2_asn1.c */
/* ====================================================================
* Copyright (c) 2007 - 2016 The GmSSL 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 GmSSL Project.
* (http://gmssl.org/)"
*
* 4. The name "GmSSL Project" must not be used to endorse or promote
* products derived from this software without prior written
* permission. For written permission, please contact
* guanzhi1980@gmail.com.
*
* 5. Products derived from this software may not be called "GmSSL"
* nor may "GmSSL" appear in their names without prior written
* permission of the GmSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the GmSSL Project
* (http://gmssl.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE GmSSL 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 GmSSL 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.
* ====================================================================
*
*/
#include <string.h>
#include <openssl/err.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/objects.h>
#include <openssl/obj_mac.h>
#include <openssl/sm2.h>
/*
* from GM/T 0009-2012
* "SM2 Cryptography Algorithm Application Specification"
*
SM2PrivateKey ::= INTEGER
SM2PublicKey ::= BIT STRING
SM2CiphertextValue ::= SEQUENCE {
XCoordinate INTEGER,
YCoordinate INTEGER,
Hash OCTET STRING SIZE(32),
Ciphertext OCTET STRING
}
SM2Signature ::= SEQUENCE {
R INTEGER,
S INTEGER,
}
SM2EnvelopedKey ::= SEQUENCE {
symAlgID AlgorithmIdentifier,
symEncryptedKey SM2CiphertextValue,
sm2PublicKey SM2PublicKey,
sm2EncryptedPrivateKey BIT STRING
}
ZID = SM3(nbits(ID)||ID||a||b||xG||yG||xA||yA)
Default ID = "1234567812345678"
*/
#if 0
typedef struct SM2CiphertextValue_st {
ASN1_INTEGER *xCoordinate;
ASN1_INTEGER *yCoordinate;
ASN1_OCTET_STRING *hash;
ASN1_OCTET_STRING *ciphertext;
} SM2CiphertextValue;
ASN1_SEQUENCE(SM2CiphertextValue) = {
ASN1_SIMPLE(SM2CiphertextValue, xCoordinate, ASN1_INTEGER),
ASN1_SIMPLE(SM2CiphertextValue, yCoordinate, ASN1_INTEGER),
ASN1_SIMPLE(SM2CiphertextValue, hash, ASN1_OCTET_STRING),
ASN1_SIMPLE(SM2CiphertextValue, ciphertext, ASN1_OCTET_STRING),
} ASN1_SEQUENCE_END(SM2CiphertextValue)
IMPLEMENT_ASN1_FUNCTIONS(SM2CiphertextValue)
IMPLEMENT_ASN1_DUP_FUNCTION(SM2CiphertextValue)
typedef struct SM2EnvelopedKey_st {
ASN1_ALGOR *symAlgID;
SM2CiphertextValue *symEncryptedKey;
ASN1_OCTET_STRING *sm2PublicKey;
ASN1_BIT_STRING *sm2EncryptedPrivateKey;
} SM2EnvelopedKey;
/* GmSSL specific */
ASN1_SEQUENCE(SM2_CIPHERTEXT_VALUE_ASN1) = {
ASN1_SIMPLE(SM2_CIPHERTEXT_VALUE_ASN1, ephem_point, ASN1_OCTET_STRING),
ASN1_SIMPLE(SM2_CIPHERTEXT_VALUE_ASN1, ciphertext, ASN1_OCTET_STRING),
ASN1_SIMPLE(SM2_CIPHERTEXT_VALUE_ASN1, mactag, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(SM2_CIPHERTEXT_VALUE)
IMPLEMENT_ASN1_FUNCTIONS(SM2_CIPHERTEXT_VALUE_ASN1)
IMPLEMENT_ASN1_DUP_FUNCTION(SM2_CIPHERTEXT_VALUE_ASN1)
int i2d_SM2_CIPHERTEXT_VALUE(const SM2_CIPHERTEXT_VALUE *c, unsigned char **out)
{
int ret = 0;
SM2CiphertextValue *asn1 = NULL;
BIGNUM *x = NULL;
BIGNUM *y = NULL;
if (!(asn1 = SM2CiphertextValue_new())) {
goto end;
}
OPENSSL_assert(asn1->xCoordinate);
OPENSSL_assert(asn1->yCoordinate);
if (!BN_to_ASN1_INTEGER(x, asn1->xCoordinate)) {
}
if (!BN_to_ASN1_INTEGER(y, asn1->yCoordinate)) {
}
M_ASN1_OCTET_STRING_set(asn1->hash, c->mactag, c->mactag_size);
M_ASN1_OCTET_STRING_set(asn1->ciphertext, c->ciphertext, c->ciphertext_size);
ret = 1;
end:
return ret;
}
SM2_CIPHERTEXT_VALUE *d2i_SM2_CIPHERTEXT_VALUE(SM2_CIPHERTEXT_VALUE **c,
const unsigned char **in, long len)
{
return NULL;
}
#endif