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This commit is contained in:
Zhi Guan
2015-08-15 15:02:15 +08:00
parent 06df2fab54
commit 3bdc0ea895
2536 changed files with 417052 additions and 271997 deletions
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160
crypto/dsa/dsa_asn1.c
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@@ -1,6 +1,7 @@
/* dsa_asn1.c */
/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
* project 2000.
/*
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
* 2000.
*/
/* ====================================================================
* Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
@@ -10,7 +11,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 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
@@ -61,90 +62,141 @@
#include <openssl/dsa.h>
#include <openssl/asn1.h>
#include <openssl/asn1t.h>
#include <openssl/rand.h>
/* Override the default new methods */
static int sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg)
void *exarg)
{
if(operation == ASN1_OP_NEW_PRE) {
DSA_SIG *sig;
sig = OPENSSL_malloc(sizeof(DSA_SIG));
if (!sig)
{
DSAerr(DSA_F_SIG_CB, ERR_R_MALLOC_FAILURE);
return 0;
}
sig->r = NULL;
sig->s = NULL;
*pval = (ASN1_VALUE *)sig;
return 2;
}
return 1;
if (operation == ASN1_OP_NEW_PRE) {
DSA_SIG *sig;
sig = OPENSSL_malloc(sizeof(DSA_SIG));
if (!sig) {
DSAerr(DSA_F_SIG_CB, ERR_R_MALLOC_FAILURE);
return 0;
}
sig->r = NULL;
sig->s = NULL;
*pval = (ASN1_VALUE *)sig;
return 2;
}
return 1;
}
ASN1_SEQUENCE_cb(DSA_SIG, sig_cb) = {
ASN1_SIMPLE(DSA_SIG, r, CBIGNUM),
ASN1_SIMPLE(DSA_SIG, s, CBIGNUM)
ASN1_SIMPLE(DSA_SIG, r, CBIGNUM),
ASN1_SIMPLE(DSA_SIG, s, CBIGNUM)
} ASN1_SEQUENCE_END_cb(DSA_SIG, DSA_SIG)
IMPLEMENT_ASN1_FUNCTIONS_const(DSA_SIG)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA_SIG, DSA_SIG, DSA_SIG)
/* Override the default free and new methods */
static int dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
void *exarg)
void *exarg)
{
if(operation == ASN1_OP_NEW_PRE) {
*pval = (ASN1_VALUE *)DSA_new();
if(*pval) return 2;
return 0;
} else if(operation == ASN1_OP_FREE_PRE) {
DSA_free((DSA *)*pval);
*pval = NULL;
return 2;
}
return 1;
if (operation == ASN1_OP_NEW_PRE) {
*pval = (ASN1_VALUE *)DSA_new();
if (*pval)
return 2;
return 0;
} else if (operation == ASN1_OP_FREE_PRE) {
DSA_free((DSA *)*pval);
*pval = NULL;
return 2;
}
return 1;
}
ASN1_SEQUENCE_cb(DSAPrivateKey, dsa_cb) = {
ASN1_SIMPLE(DSA, version, LONG),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM),
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_SIMPLE(DSA, priv_key, BIGNUM)
ASN1_SIMPLE(DSA, version, LONG),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM),
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_SIMPLE(DSA, priv_key, BIGNUM)
} ASN1_SEQUENCE_END_cb(DSA, DSAPrivateKey)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPrivateKey, DSAPrivateKey)
ASN1_SEQUENCE_cb(DSAparams, dsa_cb) = {
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM),
} ASN1_SEQUENCE_END_cb(DSA, DSAparams)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAparams, DSAparams)
/* DSA public key is a bit trickier... its effectively a CHOICE type
* decided by a field called write_params which can either write out
* just the public key as an INTEGER or the parameters and public key
* in a SEQUENCE
/*
* DSA public key is a bit trickier... its effectively a CHOICE type decided
* by a field called write_params which can either write out just the public
* key as an INTEGER or the parameters and public key in a SEQUENCE
*/
ASN1_SEQUENCE(dsa_pub_internal) = {
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM)
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_SIMPLE(DSA, p, BIGNUM),
ASN1_SIMPLE(DSA, q, BIGNUM),
ASN1_SIMPLE(DSA, g, BIGNUM)
} ASN1_SEQUENCE_END_name(DSA, dsa_pub_internal)
ASN1_CHOICE_cb(DSAPublicKey, dsa_cb) = {
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_EX_COMBINE(0, 0, dsa_pub_internal)
ASN1_SIMPLE(DSA, pub_key, BIGNUM),
ASN1_EX_COMBINE(0, 0, dsa_pub_internal)
} ASN1_CHOICE_END_cb(DSA, DSAPublicKey, write_params)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DSA, DSAPublicKey, DSAPublicKey)
DSA *DSAparams_dup(DSA *dsa)
{
return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), dsa);
}
{
return ASN1_item_dup(ASN1_ITEM_rptr(DSAparams), dsa);
}
int DSA_sign(int type, const unsigned char *dgst, int dlen,
unsigned char *sig, unsigned int *siglen, DSA *dsa)
{
DSA_SIG *s;
RAND_seed(dgst, dlen);
s = DSA_do_sign(dgst, dlen, dsa);
if (s == NULL) {
*siglen = 0;
return (0);
}
*siglen = i2d_DSA_SIG(s, &sig);
DSA_SIG_free(s);
return (1);
}
/* data has already been hashed (probably with SHA or SHA-1). */
/*-
* returns
* 1: correct signature
* 0: incorrect signature
* -1: error
*/
int DSA_verify(int type, const unsigned char *dgst, int dgst_len,
const unsigned char *sigbuf, int siglen, DSA *dsa)
{
DSA_SIG *s;
const unsigned char *p = sigbuf;
unsigned char *der = NULL;
int derlen = -1;
int ret = -1;
s = DSA_SIG_new();
if (s == NULL)
return (ret);
if (d2i_DSA_SIG(&s, &p, siglen) == NULL)
goto err;
/* Ensure signature uses DER and doesn't have trailing garbage */
derlen = i2d_DSA_SIG(s, &der);
if (derlen != siglen || memcmp(sigbuf, der, derlen))
goto err;
ret = DSA_do_verify(dgst, dgst_len, s, dsa);
err:
if (derlen > 0) {
OPENSSL_cleanse(der, derlen);
OPENSSL_free(der);
}
DSA_SIG_free(s);
return (ret);
}