summaryrefslogtreecommitdiff
path: root/main/openssl/crypto/dsa/dsa_asn1.c
diff options
context:
space:
mode:
Diffstat (limited to 'main/openssl/crypto/dsa/dsa_asn1.c')
-rw-r--r--main/openssl/crypto/dsa/dsa_asn1.c40
1 files changed, 39 insertions, 1 deletions
diff --git a/main/openssl/crypto/dsa/dsa_asn1.c b/main/openssl/crypto/dsa/dsa_asn1.c
index c37460b2..60585343 100644
--- a/main/openssl/crypto/dsa/dsa_asn1.c
+++ b/main/openssl/crypto/dsa/dsa_asn1.c
@@ -61,6 +61,7 @@
#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,
@@ -87,7 +88,7 @@ ASN1_SEQUENCE_cb(DSA_SIG, sig_cb) = {
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,
@@ -148,3 +149,40 @@ DSA *DSAparams_dup(DSA *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;
+ int ret=-1;
+
+ s = DSA_SIG_new();
+ if (s == NULL) return(ret);
+ if (d2i_DSA_SIG(&s,&sigbuf,siglen) == NULL) goto err;
+ ret=DSA_do_verify(dgst,dgst_len,s,dsa);
+err:
+ DSA_SIG_free(s);
+ return(ret);
+ }