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Start parsing RSASSA-PSS parameters

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Manuel Pégourié-Gonnard 2014-01-23 16:24:44 +01:00
parent 59a75d5b9d
commit f346bab139
4 changed files with 120 additions and 1 deletions
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31
library/x509_crt.c
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@ -622,6 +622,22 @@ static int x509_crt_parse_der_core( x509_crt *crt, const unsigned char *buf,
return( ret );
}
if( crt->sig_pk == POLARSSL_PK_RSASSA_PSS )
{
int salt_len, trailer_field;
if( ( ret = x509_get_rsassa_pss_params( &crt->sig_params,
&crt->sig_md, &salt_len, &trailer_field ) ) != 0 )
return( ret );
}
else
{
/* Make sure parameters were absent or NULL */
if( ( crt->sig_params.tag != ASN1_NULL && crt->sig_params.tag != 0 ) ||
crt->sig_params.len != 0 )
return( POLARSSL_ERR_X509_INVALID_ALG );
}
/*
* issuer Name
*/
@ -1300,6 +1316,21 @@ int x509_crt_info( char *buf, size_t size, const char *prefix,
ret = snprintf( p, n, "%s", desc );
SAFE_SNPRINTF();
if( crt->sig_pk == POLARSSL_PK_RSASSA_PSS )
{
md_type_t md_alg;
int salt_len, trailer_field;
if( ( ret = x509_get_rsassa_pss_params( &crt->sig_params,
&md_alg, &salt_len, &trailer_field ) ) != 0 )
return( ret );
// TODO: SHA1 harcoded twice (WIP)
ret = snprintf( p, n, " (SHA1, MGF1-SHA1, %d, %d)",
salt_len, trailer_field );
SAFE_SNPRINTF();
}
/* Key size */
if( ( ret = x509_key_size_helper( key_size_str, BEFORE_COLON,
pk_get_name( &crt->pk ) ) ) != 0 )