#include <time.h>
#include "cryptlib.h"
+#include "asn1_locl.h"
#ifndef NO_SYS_TYPES_H
# include <sys/types.h>
#include <openssl/buffer.h>
#include <openssl/evp.h>
-int ASN1_verify(int (*i2d)(), X509_ALGOR *a, ASN1_BIT_STRING *signature,
- char *data, EVP_PKEY *pkey)
+#ifndef NO_ASN1_OLD
+
+int ASN1_verify(i2d_of_void *i2d, X509_ALGOR *a, ASN1_BIT_STRING *signature,
+ char *data, EVP_PKEY *pkey)
{
EVP_MD_CTX ctx;
const EVP_MD *type;
unsigned char *p,*buf_in=NULL;
int ret= -1,i,inl;
+ EVP_MD_CTX_init(&ctx);
i=OBJ_obj2nid(a->algorithm);
type=EVP_get_digestbyname(OBJ_nid2sn(i));
if (type == NULL)
p=buf_in;
i2d(data,&p);
- EVP_VerifyInit(&ctx,type);
+ EVP_VerifyInit_ex(&ctx,type, NULL);
EVP_VerifyUpdate(&ctx,(unsigned char *)buf_in,inl);
- memset(buf_in,0,(unsigned int)inl);
+ OPENSSL_cleanse(buf_in,(unsigned int)inl);
OPENSSL_free(buf_in);
if (EVP_VerifyFinal(&ctx,(unsigned char *)signature->data,
/* memset(&ctx,0,sizeof(ctx)); */
ret=1;
err:
+ EVP_MD_CTX_cleanup(&ctx);
return(ret);
}
+#endif
+
int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *a, ASN1_BIT_STRING *signature,
void *asn, EVP_PKEY *pkey)
{
EVP_MD_CTX ctx;
- const EVP_MD *type;
+ const EVP_MD *type = NULL;
unsigned char *buf_in=NULL;
- int ret= -1,i,inl;
+ int ret= -1,inl;
- i=OBJ_obj2nid(a->algorithm);
- type=EVP_get_digestbyname(OBJ_nid2sn(i));
+ int mdnid, pknid;
+
+ /* Convert signature OID into digest and public key OIDs */
+
+ if (!OBJ_find_sigid_algs(OBJ_obj2nid(a->algorithm), &mdnid, &pknid))
+ {
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ goto err;
+ }
+ type=EVP_get_digestbynid(mdnid);
if (type == NULL)
{
- ASN1err(ASN1_F_ASN1_VERIFY,ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+ goto err;
+ }
+
+ /* Check public key OID matches public key type */
+ if (EVP_PKEY_type(pknid) != pkey->ameth->pkey_id)
+ {
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ASN1_R_WRONG_PUBLIC_KEY_TYPE);
+ goto err;
+ }
+
+ EVP_MD_CTX_init(&ctx);
+ if (!EVP_VerifyInit_ex(&ctx,type, NULL))
+ {
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ERR_R_EVP_LIB);
+ ret=0;
goto err;
}
if (buf_in == NULL)
{
- ASN1err(ASN1_F_ASN1_VERIFY,ERR_R_MALLOC_FAILURE);
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ERR_R_MALLOC_FAILURE);
goto err;
}
- EVP_VerifyInit(&ctx,type);
EVP_VerifyUpdate(&ctx,(unsigned char *)buf_in,inl);
- memset(buf_in,0,(unsigned int)inl);
+ OPENSSL_cleanse(buf_in,(unsigned int)inl);
OPENSSL_free(buf_in);
if (EVP_VerifyFinal(&ctx,(unsigned char *)signature->data,
(unsigned int)signature->length,pkey) <= 0)
{
- ASN1err(ASN1_F_ASN1_VERIFY,ERR_R_EVP_LIB);
+ ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ERR_R_EVP_LIB);
ret=0;
goto err;
}
/* memset(&ctx,0,sizeof(ctx)); */
ret=1;
err:
+ EVP_MD_CTX_cleanup(&ctx);
return(ret);
}