8 #ifndef BOTAN_FPE_FE1_H__     9 #define BOTAN_FPE_FE1_H__    11 #include <botan/bigint.h>    12 #include <botan/symkey.h>    25 BigInt BOTAN_DLL 
fe1_encrypt(
const BigInt& n, 
const BigInt& X,
    27                              const MemoryRegion<byte>& tweak);
    36 BigInt BOTAN_DLL 
fe1_decrypt(
const BigInt& n, 
const BigInt& X,
    38                              const MemoryRegion<byte>& tweak);
 BigInt fe1_encrypt(const BigInt &n, const BigInt &X0, const SymmetricKey &key, const MemoryRegion< byte > &tweak)
BigInt fe1_decrypt(const BigInt &n, const BigInt &X0, const SymmetricKey &key, const MemoryRegion< byte > &tweak)