diff options
Diffstat (limited to 'crypto/dsa/dsa_ameth.c')
-rw-r--r-- | crypto/dsa/dsa_ameth.c | 101 |
1 files changed, 98 insertions, 3 deletions
diff --git a/crypto/dsa/dsa_ameth.c b/crypto/dsa/dsa_ameth.c index 4940bfa0b9..1b39713c62 100644 --- a/crypto/dsa/dsa_ameth.c +++ b/crypto/dsa/dsa_ameth.c @@ -396,6 +396,101 @@ static void int_dsa_free(EVP_PKEY *pkey) DSA_free(pkey->pkey.dsa); } +static void update_buflen(const BIGNUM *b, size_t *pbuflen) + { + int i; + if (!b) + return; + if (*pbuflen < (i = (size_t)BN_num_bytes(b))) + *pbuflen = i; + } + +int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype) + { + unsigned char *m=NULL; + int ret=0; + size_t buf_len=0; + const char *ktype = NULL; + + const BIGNUM *priv_key, *pub_key; + + if (ptype == 2) + priv_key = x->priv_key; + else + priv_key = NULL; + + if (ptype > 0) + pub_key = x->pub_key; + else + pub_key = NULL; + + if (ptype == 2) + ktype = "Private-Key"; + else if (ptype == 1) + ktype = "Public-Key"; + else + ktype = "DSA-Parameters"; + + if (x->p == NULL) + { + DSAerr(DSA_F_DSA_PRINT,DSA_R_MISSING_PARAMETERS); + goto err; + } + + update_buflen(x->p, &buf_len); + update_buflen(x->q, &buf_len); + update_buflen(x->g, &buf_len); + update_buflen(priv_key, &buf_len); + update_buflen(pub_key, &buf_len); + + m=(unsigned char *)OPENSSL_malloc(buf_len+10); + if (m == NULL) + { + DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE); + goto err; + } + + if (priv_key) + { + if(!BIO_indent(bp,off,128)) + goto err; + if (BIO_printf(bp,"%s: (%d bit)\n",ktype, BN_num_bits(x->p)) + <= 0) goto err; + } + + if (!ASN1_bn_print(bp,"priv:",priv_key,m,off)) + goto err; + if (!ASN1_bn_print(bp,"pub: ",pub_key,m,off)) + goto err; + if (!ASN1_bn_print(bp,"P: ",x->p,m,off)) goto err; + if (!ASN1_bn_print(bp,"Q: ",x->q,m,off)) goto err; + if (!ASN1_bn_print(bp,"G: ",x->g,m,off)) goto err; + ret=1; +err: + if (m != NULL) OPENSSL_free(m); + return(ret); + } + + +static int dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_dsa_print(bp, pkey->pkey.dsa, indent, 0); + } + +static int dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_dsa_print(bp, pkey->pkey.dsa, indent, 1); + } + + +static int dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent, + ASN1_PCTX *ctx) + { + return do_dsa_print(bp, pkey->pkey.dsa, indent, 2); + } + /* NB these are sorted in pkey_id order, lowest first */ const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = @@ -433,11 +528,11 @@ const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = dsa_pub_decode, dsa_pub_encode, dsa_pub_cmp, - 0, + dsa_pub_print, dsa_priv_decode, dsa_priv_encode, - 0, + dsa_priv_print, int_dsa_size, dsa_bits, @@ -446,7 +541,7 @@ const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = dsa_missing_parameters, dsa_copy_parameters, dsa_cmp_parameters, - 0, + dsa_param_print, int_dsa_free, 0 |