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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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359
crypto/asn1/a_sign.c
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@@ -5,21 +5,21 @@
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
@@ -34,10 +34,10 @@
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
* 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.
*
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
@@ -63,7 +63,7 @@
* 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
@@ -128,171 +128,204 @@
#ifndef NO_ASN1_OLD
int ASN1_sign(i2d_of_void *i2d, X509_ALGOR *algor1, X509_ALGOR *algor2,
ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey,
const EVP_MD *type)
{
EVP_MD_CTX ctx;
unsigned char *p,*buf_in=NULL,*buf_out=NULL;
int i,inl=0,outl=0,outll=0;
X509_ALGOR *a;
ASN1_BIT_STRING *signature, char *data, EVP_PKEY *pkey,
const EVP_MD *type)
{
EVP_MD_CTX ctx;
unsigned char *p, *buf_in = NULL, *buf_out = NULL;
int i, inl = 0, outl = 0, outll = 0;
X509_ALGOR *a;
EVP_MD_CTX_init(&ctx);
for (i=0; i<2; i++)
{
if (i == 0)
a=algor1;
else
a=algor2;
if (a == NULL) continue;
if (type->pkey_type == NID_dsaWithSHA1)
{
/* special case: RFC 2459 tells us to omit 'parameters'
* with id-dsa-with-sha1 */
ASN1_TYPE_free(a->parameter);
a->parameter = NULL;
}
else if ((a->parameter == NULL) ||
(a->parameter->type != V_ASN1_NULL))
{
ASN1_TYPE_free(a->parameter);
if ((a->parameter=ASN1_TYPE_new()) == NULL) goto err;
a->parameter->type=V_ASN1_NULL;
}
ASN1_OBJECT_free(a->algorithm);
a->algorithm=OBJ_nid2obj(type->pkey_type);
if (a->algorithm == NULL)
{
ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_UNKNOWN_OBJECT_TYPE);
goto err;
}
if (a->algorithm->length == 0)
{
ASN1err(ASN1_F_ASN1_SIGN,ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
goto err;
}
}
inl=i2d(data,NULL);
buf_in=(unsigned char *)OPENSSL_malloc((unsigned int)inl);
outll=outl=EVP_PKEY_size(pkey);
buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl);
if ((buf_in == NULL) || (buf_out == NULL))
{
outl=0;
ASN1err(ASN1_F_ASN1_SIGN,ERR_R_MALLOC_FAILURE);
goto err;
}
p=buf_in;
EVP_MD_CTX_init(&ctx);
for (i = 0; i < 2; i++) {
if (i == 0)
a = algor1;
else
a = algor2;
if (a == NULL)
continue;
if (type->pkey_type == NID_dsaWithSHA1) {
/*
* special case: RFC 2459 tells us to omit 'parameters' with
* id-dsa-with-sha1
*/
ASN1_TYPE_free(a->parameter);
a->parameter = NULL;
} else if ((a->parameter == NULL) ||
(a->parameter->type != V_ASN1_NULL)) {
ASN1_TYPE_free(a->parameter);
if ((a->parameter = ASN1_TYPE_new()) == NULL)
goto err;
a->parameter->type = V_ASN1_NULL;
}
ASN1_OBJECT_free(a->algorithm);
a->algorithm = OBJ_nid2obj(type->pkey_type);
if (a->algorithm == NULL) {
ASN1err(ASN1_F_ASN1_SIGN, ASN1_R_UNKNOWN_OBJECT_TYPE);
goto err;
}
if (a->algorithm->length == 0) {
ASN1err(ASN1_F_ASN1_SIGN,
ASN1_R_THE_ASN1_OBJECT_IDENTIFIER_IS_NOT_KNOWN_FOR_THIS_MD);
goto err;
}
}
inl = i2d(data, NULL);
buf_in = (unsigned char *)OPENSSL_malloc((unsigned int)inl);
outll = outl = EVP_PKEY_size(pkey);
buf_out = (unsigned char *)OPENSSL_malloc((unsigned int)outl);
if ((buf_in == NULL) || (buf_out == NULL)) {
outl = 0;
ASN1err(ASN1_F_ASN1_SIGN, ERR_R_MALLOC_FAILURE);
goto err;
}
p = buf_in;
i2d(data,&p);
EVP_SignInit_ex(&ctx,type, NULL);
EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
(unsigned int *)&outl,pkey))
{
outl=0;
ASN1err(ASN1_F_ASN1_SIGN,ERR_R_EVP_LIB);
goto err;
}
if (signature->data != NULL) OPENSSL_free(signature->data);
signature->data=buf_out;
buf_out=NULL;
signature->length=outl;
/* In the interests of compatibility, I'll make sure that
* the bit string has a 'not-used bits' value of 0
*/
signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
err:
EVP_MD_CTX_cleanup(&ctx);
if (buf_in != NULL)
{ OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
if (buf_out != NULL)
{ OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); }
return(outl);
}
i2d(data, &p);
if (!EVP_SignInit_ex(&ctx, type, NULL)
|| !EVP_SignUpdate(&ctx, (unsigned char *)buf_in, inl)
|| !EVP_SignFinal(&ctx, (unsigned char *)buf_out,
(unsigned int *)&outl, pkey)) {
outl = 0;
ASN1err(ASN1_F_ASN1_SIGN, ERR_R_EVP_LIB);
goto err;
}
if (signature->data != NULL)
OPENSSL_free(signature->data);
signature->data = buf_out;
buf_out = NULL;
signature->length = outl;
/*
* In the interests of compatibility, I'll make sure that the bit string
* has a 'not-used bits' value of 0
*/
signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;
err:
EVP_MD_CTX_cleanup(&ctx);
if (buf_in != NULL) {
OPENSSL_cleanse((char *)buf_in, (unsigned int)inl);
OPENSSL_free(buf_in);
}
if (buf_out != NULL) {
OPENSSL_cleanse((char *)buf_out, outll);
OPENSSL_free(buf_out);
}
return (outl);
}
#endif
int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,
ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey,
const EVP_MD *type)
{
EVP_MD_CTX ctx;
unsigned char *buf_in=NULL,*buf_out=NULL;
int inl=0,outl=0,outll=0;
int signid, paramtype;
int ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1,
X509_ALGOR *algor2, ASN1_BIT_STRING *signature, void *asn,
EVP_PKEY *pkey, const EVP_MD *type)
{
EVP_MD_CTX ctx;
EVP_MD_CTX_init(&ctx);
if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey)) {
EVP_MD_CTX_cleanup(&ctx);
return 0;
}
return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx);
}
if (type == NULL)
{
int def_nid;
if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) > 0)
type = EVP_get_digestbynid(def_nid);
}
int ASN1_item_sign_ctx(const ASN1_ITEM *it,
X509_ALGOR *algor1, X509_ALGOR *algor2,
ASN1_BIT_STRING *signature, void *asn, EVP_MD_CTX *ctx)
{
const EVP_MD *type;
EVP_PKEY *pkey;
unsigned char *buf_in = NULL, *buf_out = NULL;
size_t inl = 0, outl = 0, outll = 0;
int signid, paramtype;
int rv;
if (type == NULL)
{
ASN1err(ASN1_F_ASN1_ITEM_SIGN, ASN1_R_NO_DEFAULT_DIGEST);
return 0;
}
type = EVP_MD_CTX_md(ctx);
pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx);
if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE)
{
if (!pkey->ameth ||
!OBJ_find_sigid_by_algs(&signid, EVP_MD_nid(type),
pkey->ameth->pkey_id))
{
ASN1err(ASN1_F_ASN1_ITEM_SIGN,
ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED);
return 0;
}
}
else
signid = type->pkey_type;
if (!type || !pkey) {
ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ASN1_R_CONTEXT_NOT_INITIALISED);
return 0;
}
if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL)
paramtype = V_ASN1_NULL;
else
paramtype = V_ASN1_UNDEF;
if (pkey->ameth->item_sign) {
rv = pkey->ameth->item_sign(ctx, it, asn, algor1, algor2, signature);
if (rv == 1)
outl = signature->length;
/*-
* Return value meanings:
* <=0: error.
* 1: method does everything.
* 2: carry on as normal.
* 3: ASN1 method sets algorithm identifiers: just sign.
*/
if (rv <= 0)
ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB);
if (rv <= 1)
goto err;
} else
rv = 2;
if (algor1)
X509_ALGOR_set0(algor1, OBJ_nid2obj(signid), paramtype, NULL);
if (algor2)
X509_ALGOR_set0(algor2, OBJ_nid2obj(signid), paramtype, NULL);
if (rv == 2) {
if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) {
if (!pkey->ameth ||
!OBJ_find_sigid_by_algs(&signid,
EVP_MD_nid(type),
pkey->ameth->pkey_id)) {
ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX,
ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED);
return 0;
}
} else
signid = type->pkey_type;
EVP_MD_CTX_init(&ctx);
inl=ASN1_item_i2d(asn,&buf_in, it);
outll=outl=EVP_PKEY_size(pkey);
buf_out=(unsigned char *)OPENSSL_malloc((unsigned int)outl);
if ((buf_in == NULL) || (buf_out == NULL))
{
outl=0;
ASN1err(ASN1_F_ASN1_ITEM_SIGN,ERR_R_MALLOC_FAILURE);
goto err;
}
if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL)
paramtype = V_ASN1_NULL;
else
paramtype = V_ASN1_UNDEF;
EVP_SignInit_ex(&ctx,type, NULL);
EVP_SignUpdate(&ctx,(unsigned char *)buf_in,inl);
if (!EVP_SignFinal(&ctx,(unsigned char *)buf_out,
(unsigned int *)&outl,pkey))
{
outl=0;
ASN1err(ASN1_F_ASN1_ITEM_SIGN,ERR_R_EVP_LIB);
goto err;
}
if (signature->data != NULL) OPENSSL_free(signature->data);
signature->data=buf_out;
buf_out=NULL;
signature->length=outl;
/* In the interests of compatibility, I'll make sure that
* the bit string has a 'not-used bits' value of 0
*/
signature->flags&= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);
signature->flags|=ASN1_STRING_FLAG_BITS_LEFT;
err:
EVP_MD_CTX_cleanup(&ctx);
if (buf_in != NULL)
{ OPENSSL_cleanse((char *)buf_in,(unsigned int)inl); OPENSSL_free(buf_in); }
if (buf_out != NULL)
{ OPENSSL_cleanse((char *)buf_out,outll); OPENSSL_free(buf_out); }
return(outl);
}
if (algor1)
X509_ALGOR_set0(algor1, OBJ_nid2obj(signid), paramtype, NULL);
if (algor2)
X509_ALGOR_set0(algor2, OBJ_nid2obj(signid), paramtype, NULL);
}
inl = ASN1_item_i2d(asn, &buf_in, it);
outll = outl = EVP_PKEY_size(pkey);
buf_out = OPENSSL_malloc((unsigned int)outl);
if ((buf_in == NULL) || (buf_out == NULL)) {
outl = 0;
ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!EVP_DigestSignUpdate(ctx, buf_in, inl)
|| !EVP_DigestSignFinal(ctx, buf_out, &outl)) {
outl = 0;
ASN1err(ASN1_F_ASN1_ITEM_SIGN_CTX, ERR_R_EVP_LIB);
goto err;
}
if (signature->data != NULL)
OPENSSL_free(signature->data);
signature->data = buf_out;
buf_out = NULL;
signature->length = outl;
/*
* In the interests of compatibility, I'll make sure that the bit string
* has a 'not-used bits' value of 0
*/
signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT | 0x07);
signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;
err:
EVP_MD_CTX_cleanup(ctx);
if (buf_in != NULL) {
OPENSSL_cleanse((char *)buf_in, (unsigned int)inl);
OPENSSL_free(buf_in);
}
if (buf_out != NULL) {
OPENSSL_cleanse((char *)buf_out, outll);
OPENSSL_free(buf_out);
}
return (outl);
}