diff options
Diffstat (limited to 'openssl/crypto/dsa/dsa_asn1.c')
| -rw-r--r-- | openssl/crypto/dsa/dsa_asn1.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/openssl/crypto/dsa/dsa_asn1.c b/openssl/crypto/dsa/dsa_asn1.c index c37460b2d..605853437 100644 --- a/openssl/crypto/dsa/dsa_asn1.c +++ b/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); + } |