commit 8b6aaca7e53f4760956caf33020809bac1b5e7bc
author Andrzej Kurek <andrzej.kurek@mobica.com> Mon Jan 22 07:04:46 2018 -0500
committer Andrzej Kurek <andrzej.kurek@mobica.com> Mon Jan 22 07:52:57 2018 -0500
tree 60b3260a78fad8b6006e45e7dadd9b97765888a8
parent 420d7d9cbd8ffe6a7be0b0de3bc5716ddd592104

pk_info: Make signature_size mandatory

All pk implementations must supply a signature_size method if they
support signing.
Move the function together with the other metadata functions.

library/pk.c

diff --git a/library/pk.c b/library/pk.c
index d8801b5..52bcb86 100644
--- a/library/pk.c
+++ b/library/pk.c
@@ -363,9 +363,9 @@
         return( MBEDTLS_ERR_PK_BAD_INPUT_DATA );
 
     if( ctx->pk_info->signature_size_func == NULL )
-        return( ( ctx->pk_info->get_bitlen( ctx->pk_ctx ) + 7 ) / 8 );
-    else
-        return( ctx->pk_info->signature_size_func( ctx->pk_ctx ) );
+        return( 0 );
+
+    return( ctx->pk_info->signature_size_func( ctx->pk_ctx ) );
 }
 
 /*