Crypto++ 8.2 Free C++ class library of cryptographic schemes

wake.h
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1 // wake.h - originally written and placed in the public domain by Wei Dai
2
3 /// \file wake.h
4 /// \brief Classes for WAKE stream cipher
5
6 #ifndef CRYPTOPP_WAKE_H
7 #define CRYPTOPP_WAKE_H
8
9 #include "seckey.h"
10 #include "secblock.h"
11 #include "strciphr.h"
12
13 NAMESPACE_BEGIN(CryptoPP)
14
15 /// \brief WAKE stream cipher information
16 /// \tparam B Endianness of the stream cipher
17 /// \since Crypto++ 1.0
18 template <class B = BigEndian>
19 struct WAKE_OFB_Info : public FixedKeyLength<32>
20 {
21 CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return B::ToEnum() == LITTLE_ENDIAN_ORDER ? "WAKE-OFB-LE" : "WAKE-OFB-BE";}
22 };
23
24 class CRYPTOPP_NO_VTABLE WAKE_Base
25 {
26 protected:
27 word32 M(word32 x, word32 y);
28 void GenKey(word32 k0, word32 k1, word32 k2, word32 k3);
29
30 word32 t[257];
31 word32 r3, r4, r5, r6;
32 };
33
34 /// \brief WAKE stream cipher operation
35 /// \tparam B Endianness of the stream cipher
36 /// \since Crypto++ 1.0
37 template <class B = BigEndian>
38 class CRYPTOPP_NO_VTABLE WAKE_Policy : public AdditiveCipherConcretePolicy<word32, 1, 64>, protected WAKE_Base
39 {
40 protected:
41 void CipherSetKey(const NameValuePairs &params, const byte *key, size_t length);
42 // OFB
43 void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
44 bool CipherIsRandomAccess() const {return false;}
45 };
46
47 /// \brief WAKE stream cipher
48 /// \tparam B Endianness of the stream cipher
49 /// \since Crypto++ 1.0
50 template <class B = BigEndian>
51 struct WAKE_OFB : public WAKE_OFB_Info<B>, public SymmetricCipherDocumentation
52 {
53 typedef SymmetricCipherFinal<ConcretePolicyHolder<WAKE_Policy<B>, AdditiveCipherTemplate<> >, WAKE_OFB_Info<B> > Encryption;
54 typedef Encryption Decryption;
55 };
56
57 NAMESPACE_END
58
59 #endif
FixedKeyLength
Inherited by keyed algorithms with fixed key length.
Definition: seckey.h:124
AdditiveCipherConcretePolicy
Base class for additive stream ciphers.
Definition: strciphr.h:201
WAKE_OFB
WAKE stream cipher.
Definition: wake.h:51
LITTLE_ENDIAN_ORDER
byte order is little-endian
Definition: cryptlib.h:145
secblock.h
Classes and functions for secure memory allocations.
WAKE_Base
Definition: wake.h:24
seckey.h
Classes and functions for implementing secret key algorithms.
SymmetricCipher
Interface for one direction (encryption or decryption) of a stream cipher or cipher mode...
Definition: cryptlib.h:1286
WAKE_Policy
WAKE stream cipher operation.
Definition: wake.h:38
strciphr.h
Classes for implementing stream ciphers.
SymmetricCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a symmetric cipher...
Definition: seckey.h:413
WAKE_OFB_Info
WAKE stream cipher information.
Definition: wake.h:19
KeystreamOperation
KeystreamOperation
Keystream operation flags.
Definition: strciphr.h:88
CryptoPP
Crypto++ library namespace.
SymmetricCipherFinal
SymmetricCipher implementation.
Definition: strciphr.h:673
AdditiveCipherTemplate<>
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:321