Crypto++  8.6
Free C++ class library of cryptographic schemes
sosemanuk.h
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1 // sosemanuk.h - originally written and placed in the public domain by Wei Dai
2 
3 /// \file sosemanuk.h
4 /// \brief Classes for Sosemanuk stream cipher
5 /// \since Crypto++ 5.5
6 
7 #ifndef CRYPTOPP_SOSEMANUK_H
8 #define CRYPTOPP_SOSEMANUK_H
9 
10 #include "strciphr.h"
11 #include "secblock.h"
12 
13 // Clang 3.3 integrated assembler crash on Linux. Clang 3.4 due to compiler
14 // error with .intel_syntax, http://llvm.org/bugs/show_bug.cgi?id=24232
15 #if CRYPTOPP_BOOL_X32 || defined(CRYPTOPP_DISABLE_MIXED_ASM)
16 # define CRYPTOPP_DISABLE_SOSEMANUK_ASM 1
17 #endif
18 
19 NAMESPACE_BEGIN(CryptoPP)
20 
21 /// \brief Sosemanuk stream cipher information
22 /// \since Crypto++ 5.5
23 struct SosemanukInfo : public VariableKeyLength<16, 1, 32, 1, SimpleKeyingInterface::UNIQUE_IV, 16>
24 {
25  CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Sosemanuk";}
26 };
27 
28 /// \brief Sosemanuk stream cipher implementation
29 /// \since Crypto++ 5.5
31 {
32 protected:
33  std::string AlgorithmProvider() const;
34  void CipherSetKey(const NameValuePairs &params, const byte *key, size_t length);
35  void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
36  void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length);
37  bool CipherIsRandomAccess() const {return false;}
38 #if (CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32 || CRYPTOPP_BOOL_X64)
39  unsigned int GetAlignment() const;
40  unsigned int GetOptimalBlockSize() const;
41 #endif
42 
45 };
46 
47 /// \brief Sosemanuk stream cipher
48 /// \details is a stream cipher developed by Come Berbain, Olivier Billet, Anne Canteaut, Nicolas Courtois,
49 /// Henri Gilbert, Louis Goubin, Aline Gouget, Louis Granboulan, Cédric Lauradoux, Marine Minier, Thomas
50 /// Pornin and Hervé Sibert. Sosemanuk is one of the final four Profile 1 (software) ciphers selected for
51 /// the eSTREAM Portfolio.
52 /// \sa <a href="http://www.cryptolounge.org/wiki/Sosemanuk">Sosemanuk</a>
53 /// \since Crypto++ 5.5
55 {
57  typedef Encryption Decryption;
58 };
59 
60 NAMESPACE_END
61 
62 #endif
FixedSizeAlignedSecBlock< word32, 12 >
SymmetricCipherDocumentation
Provides Encryption and Decryption typedefs used by derived classes to implement a symmetric cipher.
Definition: seckey.h:413
Sosemanuk
Sosemanuk stream cipher.
Definition: sosemanuk.h:54
SymmetricCipherFinal
SymmetricCipher implementation.
Definition: strciphr.h:683
AdditiveCipherConcretePolicy
Base class for additive stream ciphers.
Definition: strciphr.h:201
secblock.h
Classes and functions for secure memory allocations.
SymmetricCipher
Interface for one direction (encryption or decryption) of a stream cipher or cipher mode.
Definition: cryptlib.h:1290
SimpleKeyingInterface
Interface for algorithms that take byte strings as keys.
Definition: cryptlib.h:641
KeystreamOperation
KeystreamOperation
Keystream operation flags.
Definition: strciphr.h:88
FixedSizeSecBlock< word32, 25 *4 >
CryptoPP
Crypto++ library namespace.
SosemanukInfo
Sosemanuk stream cipher information.
Definition: sosemanuk.h:23
SosemanukPolicy
Sosemanuk stream cipher implementation.
Definition: sosemanuk.h:30
NameValuePairs
Interface for retrieving values given their names.
Definition: cryptlib.h:321
strciphr.h
Classes for implementing stream ciphers.
VariableKeyLength
Inherited by keyed algorithms with variable key length.
Definition: seckey.h:165