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Fix extraction of signature-type from PK context instance

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This commit is contained in:
Hanno Becker 2017-09-28 14:43:04 +01:00
parent a75a459143
commit 2bc85eb7aa
2 changed files with 21 additions and 8 deletions
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10
library/x509write_crt.c
View file

@ -308,9 +308,15 @@ int x509write_crt_der( x509write_cert *ctx, unsigned char *buf, size_t size,
c = tmp_buf + sizeof( tmp_buf );
/* Signature algorithm needed in TBS, and later for actual signature */
pk_alg = pk_get_type( ctx->issuer_key );
if( pk_alg == POLARSSL_PK_ECKEY )
/* There's no direct way of extracting a signature algorithm
* (represented as an element of pk_type_t) from a PK instance. */
if( pk_can_do( ctx->issuer_key, POLARSSL_PK_RSA ) )
pk_alg = POLARSSL_PK_RSA;
else if( pk_can_do( ctx->issuer_key, POLARSSL_PK_ECDSA ) )
pk_alg = POLARSSL_PK_ECDSA;
else
return( POLARSSL_ERR_X509_INVALID_ALG );
if( ( ret = oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )

19
library/x509write_csr.c
View file

@ -195,13 +195,20 @@ int x509write_csr_der( x509write_csr *ctx, unsigned char *buf, size_t size,
*/
md( md_info_from_type( ctx->md_alg ), c, len, hash );
pk_alg = pk_get_type( ctx->key );
if( pk_alg == POLARSSL_PK_ECKEY )
pk_alg = POLARSSL_PK_ECDSA;
if( ( ret = pk_sign( ctx->key, ctx->md_alg, hash, 0, sig, &sig_len,
f_rng, p_rng ) ) != 0 ||
( ret = oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
f_rng, p_rng ) ) != 0 )
{
return( ret );
}
if( pk_can_do( ctx->key, POLARSSL_PK_RSA ) )
pk_alg = POLARSSL_PK_RSA;
else if( pk_can_do( ctx->key, POLARSSL_PK_ECDSA ) )
pk_alg = POLARSSL_PK_ECDSA;
else
return( POLARSSL_ERR_X509_INVALID_ALG );
if( ( ret = oid_get_oid_by_sig_alg( pk_alg, ctx->md_alg,
&sig_oid, &sig_oid_len ) ) != 0 )
{
return( ret );