Botan: src/constructs/fpe_fe1/fpe_fe1.h Source File

Botan 1.10.17

fpe_fe1.h
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1 /*
2 * Format Preserving Encryption (FE1 scheme)
3 * (C) 2009 Jack Lloyd
4 *
5 * Distributed under the terms of the Botan license
6 */
7
8 #ifndef BOTAN_FPE_FE1_H__
9 #define BOTAN_FPE_FE1_H__
10
11 #include <botan/bigint.h>
12 #include <botan/symkey.h>
13
14 namespace Botan {
15
16 namespace FPE {
17
18 /**
19 * Encrypt X from and onto the group Z_n using key and tweak
20 * @param n the modulus
21 * @param X the plaintext as a BigInt
22 * @param key a random key
23 * @param tweak will modify the ciphertext (think of as an IV)
24 */
25 BigInt BOTAN_DLL fe1_encrypt(const BigInt& n, const BigInt& X,
26 const SymmetricKey& key,
27 const MemoryRegion<byte>& tweak);
28
29 /**
30 * Decrypt X from and onto the group Z_n using key and tweak
31 * @param n the modulus
32 * @param X the ciphertext as a BigInt
33 * @param key is the key used for encryption
34 * @param tweak the same tweak used for encryption
35 */
36 BigInt BOTAN_DLL fe1_decrypt(const BigInt& n, const BigInt& X,
37 const SymmetricKey& key,
38 const MemoryRegion<byte>& tweak);
39
40 }
41
42 }
43
44 #endif
Botan::FPE::fe1_encrypt
BigInt fe1_encrypt(const BigInt &n, const BigInt &X0, const SymmetricKey &key, const MemoryRegion< byte > &tweak)
Definition: fpe_fe1.cpp:138
Botan::FPE::fe1_decrypt
BigInt fe1_decrypt(const BigInt &n, const BigInt &X0, const SymmetricKey &key, const MemoryRegion< byte > &tweak)
Definition: fpe_fe1.cpp:166
Botan::SymmetricKey
OctetString SymmetricKey
Definition: symkey.h:147
Botan
Definition: algo_base.h:14