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authorDr. Stephen Henson <steve@openssl.org>2011-10-09 23:13:50 +0000
committerDr. Stephen Henson <steve@openssl.org>2011-10-09 23:13:50 +0000
commit9309ea66177f927aefa14bf317a578427139a0fc (patch)
treedde4b5ce742168c5860279a634457045ac562e17 /crypto/dsa
parent05c9e3aea584c4d618dc32a4825287f06828a537 (diff)
Backport PSS signature support from HEAD.
Diffstat (limited to 'crypto/dsa')
-rw-r--r--crypto/dsa/dsa.h1
-rw-r--r--crypto/dsa/dsa_ameth.c47
-rw-r--r--crypto/dsa/dsa_err.c1
3 files changed, 49 insertions, 0 deletions
diff --git a/crypto/dsa/dsa.h b/crypto/dsa/dsa.h
index 295470e868..a6f6d0b0b2 100644
--- a/crypto/dsa/dsa.h
+++ b/crypto/dsa/dsa.h
@@ -299,6 +299,7 @@ void ERR_load_DSA_strings(void);
#define DSA_F_DSA_SIGN 106
#define DSA_F_DSA_SIGN_SETUP 107
#define DSA_F_DSA_SIG_NEW 109
+#define DSA_F_DSA_SIG_PRINT 125
#define DSA_F_DSA_VERIFY 108
#define DSA_F_I2D_DSA_SIG 111
#define DSA_F_OLD_DSA_PRIV_DECODE 122
diff --git a/crypto/dsa/dsa_ameth.c b/crypto/dsa/dsa_ameth.c
index 6413aae46e..376156ec5e 100644
--- a/crypto/dsa/dsa_ameth.c
+++ b/crypto/dsa/dsa_ameth.c
@@ -542,6 +542,52 @@ static int old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
return i2d_DSAPrivateKey(pkey->pkey.dsa, pder);
}
+static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
+ const ASN1_STRING *sig,
+ int indent, ASN1_PCTX *pctx)
+ {
+ DSA_SIG *dsa_sig;
+ const unsigned char *p;
+ if (!sig)
+ {
+ if (BIO_puts(bp, "\n") <= 0)
+ return 0;
+ else
+ return 1;
+ }
+ p = sig->data;
+ dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length);
+ if (dsa_sig)
+ {
+ int rv = 0;
+ size_t buf_len = 0;
+ unsigned char *m=NULL;
+ update_buflen(dsa_sig->r, &buf_len);
+ update_buflen(dsa_sig->s, &buf_len);
+ m = OPENSSL_malloc(buf_len+10);
+ if (m == NULL)
+ {
+ DSAerr(DSA_F_DSA_SIG_PRINT,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (BIO_write(bp, "\n", 1) != 1)
+ goto err;
+
+ if (!ASN1_bn_print(bp,"r: ",dsa_sig->r,m,indent))
+ goto err;
+ if (!ASN1_bn_print(bp,"s: ",dsa_sig->s,m,indent))
+ goto err;
+ rv = 1;
+ err:
+ if (m)
+ OPENSSL_free(m);
+ DSA_SIG_free(dsa_sig);
+ return rv;
+ }
+ return X509_signature_dump(bp, sig, indent);
+ }
+
static int dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
{
switch (op)
@@ -647,6 +693,7 @@ const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] =
dsa_copy_parameters,
dsa_cmp_parameters,
dsa_param_print,
+ dsa_sig_print,
int_dsa_free,
dsa_pkey_ctrl,
diff --git a/crypto/dsa/dsa_err.c b/crypto/dsa/dsa_err.c
index 6c49523289..00545b7b9f 100644
--- a/crypto/dsa/dsa_err.c
+++ b/crypto/dsa/dsa_err.c
@@ -88,6 +88,7 @@ static ERR_STRING_DATA DSA_str_functs[]=
{ERR_FUNC(DSA_F_DSA_SIGN), "DSA_sign"},
{ERR_FUNC(DSA_F_DSA_SIGN_SETUP), "DSA_sign_setup"},
{ERR_FUNC(DSA_F_DSA_SIG_NEW), "DSA_SIG_new"},
+{ERR_FUNC(DSA_F_DSA_SIG_PRINT), "DSA_SIG_PRINT"},
{ERR_FUNC(DSA_F_DSA_VERIFY), "DSA_verify"},
{ERR_FUNC(DSA_F_I2D_DSA_SIG), "i2d_DSA_SIG"},
{ERR_FUNC(DSA_F_OLD_DSA_PRIV_DECODE), "OLD_DSA_PRIV_DECODE"},