Added support for writing Key Usage and NS Cert Type extensions
diff --git a/library/x509write.c b/library/x509write.c
index 818a83a..c57e56a 100644
--- a/library/x509write.c
+++ b/library/x509write.c
@@ -389,6 +389,47 @@
0, buf + sizeof(buf) - len, len );
}
+int x509write_crt_set_key_usage( x509write_cert *ctx, unsigned char key_usage )
+{
+ unsigned char buf[4];
+ unsigned char *c;
+ int ret;
+
+ c = buf + 4;
+
+ if( ( ret = asn1_write_bitstring( &c, buf, &key_usage, 7 ) ) != 4 )
+ return( ret );
+
+ ret = x509write_crt_set_extension( ctx, OID_KEY_USAGE,
+ OID_SIZE( OID_KEY_USAGE ),
+ 1, buf, 4 );
+ if( ret != 0 )
+ return( ret );
+
+ return( 0 );
+}
+
+int x509write_crt_set_ns_cert_type( x509write_cert *ctx,
+ unsigned char ns_cert_type )
+{
+ unsigned char buf[4];
+ unsigned char *c;
+ int ret;
+
+ c = buf + 4;
+
+ if( ( ret = asn1_write_bitstring( &c, buf, &ns_cert_type, 8 ) ) != 4 )
+ return( ret );
+
+ ret = x509write_crt_set_extension( ctx, OID_NS_CERT_TYPE,
+ OID_SIZE( OID_NS_CERT_TYPE ),
+ 0, buf, 4 );
+ if( ret != 0 )
+ return( ret );
+
+ return( 0 );
+}
+
int x509write_pubkey_der( rsa_context *rsa, unsigned char *buf, size_t size )
{
int ret;