Add special return code for ecdsa length mismatch
diff --git a/library/error.c b/library/error.c
index 3cc3aa3..2e6bba6 100644
--- a/library/error.c
+++ b/library/error.c
@@ -245,6 +245,8 @@
snprintf( buf, buflen, "ECP - Generation of random value, such as (ephemeral) key, failed" );
if( use_ret == -(POLARSSL_ERR_ECP_INVALID_KEY) )
snprintf( buf, buflen, "ECP - Invalid private or public key" );
+ if( use_ret == -(POLARSSL_ERR_ECP_SIG_LEN_MISMATCH) )
+ snprintf( buf, buflen, "ECP - Signature is valid but shorter than the user-supplied length" );
#endif /* POLARSSL_ECP_C */
#if defined(POLARSSL_MD_C)
