Add sig_opts member to X509 structures
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8 changed files with 43 additions and 12 deletions
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@ -559,25 +559,37 @@ int x509_get_sig( unsigned char **p, const unsigned char *end, x509_buf *sig )
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* Get signature algorithm from alg OID and optional parameters
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*/
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int x509_get_sig_alg( const x509_buf *sig_oid, const x509_buf *sig_params,
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md_type_t *md_alg, pk_type_t *pk_alg )
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md_type_t *md_alg, pk_type_t *pk_alg,
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void **sig_opts )
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{
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int ret;
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if( *sig_opts != NULL )
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return( POLARSSL_ERR_X509_BAD_INPUT_DATA );
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if( ( ret = oid_get_sig_alg( sig_oid, md_alg, pk_alg ) ) != 0 )
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return( POLARSSL_ERR_X509_UNKNOWN_SIG_ALG + ret );
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#if defined(POLARSSL_RSASSA_PSS_CERTIFICATES)
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if( *pk_alg == POLARSSL_PK_RSASSA_PSS )
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{
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int salt_len;
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md_type_t mgf_md;
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pk_rsassa_pss_options *pss_opts;
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pss_opts = polarssl_malloc( sizeof( pk_rsassa_pss_options ) );
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if( pss_opts == NULL )
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return( POLARSSL_ERR_X509_MALLOC_FAILED );
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/* Make sure params are valid */
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ret = x509_get_rsassa_pss_params( sig_params,
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md_alg, &mgf_md, &salt_len );
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md_alg,
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&pss_opts->mgf1_hash_id,
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&pss_opts->expected_salt_len );
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if( ret != 0 )
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{
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polarssl_free( pss_opts );
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return( ret );
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}
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*sig_opts = (void *) pss_opts;
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}
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else
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#endif
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