Clean up PK decryption encoding.

Previously RSA and ElGamal stripped off leading zeros which were then
assumed by the padding decoders. Instead have them produce ciphertexts
with leading zeros. Changes EME_Raw to strip leading zeros to match
existing behavior.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/pubkey/elgamal/elgamal.cpp b/src/lib/pubkey/elgamal/elgamal.cpp
index 10dc195a8..37dfe89cf 100644
--- a/src/lib/pubkey/elgamal/elgamal.cpp
+++ b/src/lib/pubkey/elgamal/elgamal.cpp
@@ -174,7 +174,7 @@ ElGamal_Decryption_Operation::raw_decrypt(const byte msg[], size_t msg_len)
 
    BigInt r = m_mod_p.multiply(b, inverse_mod(m_powermod_x_p(a), p));
 
-   return BigInt::encode_locked(m_blinder.unblind(r));
+   return BigInt::encode_1363(m_blinder.unblind(r), p_bytes);
    }
 
 BOTAN_REGISTER_PK_ENCRYPTION_OP("ElGamal", ElGamal_Encryption_Operation);