Throw Encoding_Error instead of Invalid_Argument if a signature encoding

operation fails for some reason (typically parameters that the scheme can't
handle).

1 files changed, 2 insertions, 2 deletions

diff --git a/src/emsa4.cpp b/src/emsa4.cpp
index 075089239..e541b9e7d 100644
--- a/src/emsa4.cpp
+++ b/src/emsa4.cpp
@@ -36,9 +36,9 @@ SecureVector<byte> EMSA4::encoding_of(const MemoryRegion<byte>& msg,
    const u32bit HASH_SIZE = hash->OUTPUT_LENGTH;
 
    if(msg.size() != HASH_SIZE)
-      throw Invalid_Argument("EMSA4::encoding_of: Bad input length");
+      throw Encoding_Error("EMSA4::encoding_of: Bad input length");
    if(output_bits < 8*HASH_SIZE + 8*SALT_SIZE + 9)
-      throw Invalid_Argument("EMSA4::encoding_of: Output length is too small");
+      throw Encoding_Error("EMSA4::encoding_of: Output length is too small");
 
    const u32bit output_length = (output_bits + 7) / 8;