Add ops for ElGamal encryption and decryption.

Note: blinding is not currently being used for RSA, RW, DH or ElGamal,
which used to have them. This should be added back before release.

1 files changed, 13 insertions, 0 deletions

diff --git a/src/pubkey/pk_ops.h b/src/pubkey/pk_ops.h
index c749bc8ea..3f04b52dc 100644
--- a/src/pubkey/pk_ops.h
+++ b/src/pubkey/pk_ops.h
@@ -18,12 +18,25 @@ namespace PK_Ops {
 class BOTAN_DLL Encryption
    {
    public:
+      virtual u32bit max_input_bits() const = 0;
+
       virtual SecureVector<byte> encrypt(const byte msg[], u32bit msg_len,
                                          RandomNumberGenerator& rng) const = 0;
 
       virtual ~Encryption() {}
    };
 
+class BOTAN_DLL Decryption
+   {
+   public:
+      virtual u32bit max_input_bits() const = 0;
+
+      virtual SecureVector<byte> decrypt(const byte msg[],
+                                         u32bit msg_len) const = 0;
+
+      virtual ~Decryption() {}
+   };
+
 class BOTAN_DLL Signature
    {
    public: