diff options
| author | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
|---|---|---|
| committer | Vadim Dashevskiy <watcherhd@gmail.com> | 2012-05-15 10:38:20 +0000 |
| commit | 48540940b6c28bb4378abfeb500ec45a625b37b6 (patch) | |
| tree | 2ef294c0763e802f91d868bdef4229b6868527de /plugins/CryptoPP/crypto/salsa.h | |
| parent | 5c350913f011e119127baeb32a6aedeb4f0d33bc (diff) | |
initial commit
git-svn-id: http://svn.miranda-ng.org/main/trunk@2 1316c22d-e87f-b044-9b9b-93d7a3e3ba9c
Diffstat (limited to 'plugins/CryptoPP/crypto/salsa.h')
| -rw-r--r-- | plugins/CryptoPP/crypto/salsa.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/plugins/CryptoPP/crypto/salsa.h b/plugins/CryptoPP/crypto/salsa.h new file mode 100644 index 0000000000..ea3ed248a6 --- /dev/null +++ b/plugins/CryptoPP/crypto/salsa.h @@ -0,0 +1,43 @@ +// salsa.h - written and placed in the public domain by Wei Dai
+
+#ifndef CRYPTOPP_SALSA_H
+#define CRYPTOPP_SALSA_H
+
+#include "strciphr.h"
+
+NAMESPACE_BEGIN(CryptoPP)
+
+//! _
+struct Salsa20_Info : public VariableKeyLength<32, 16, 32, 16, SimpleKeyingInterface::UNIQUE_IV, 8>
+{
+ static const char *StaticAlgorithmName() {return "Salsa20";}
+};
+
+class CRYPTOPP_NO_VTABLE Salsa20_Policy : public AdditiveCipherConcretePolicy<word32, 16>, public Salsa20_Info
+{
+protected:
+ void CipherSetKey(const NameValuePairs ¶ms, const byte *key, size_t length);
+ void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
+ void CipherResynchronize(byte *keystreamBuffer, const byte *IV);
+ bool IsRandomAccess() const {return true;}
+ void SeekToIteration(lword iterationCount);
+#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X64
+ unsigned int GetAlignment() const;
+ unsigned int GetOptimalBlockSize() const;
+#endif
+
+private:
+ FixedSizeAlignedSecBlock<word32, 16> m_state;
+ int m_rounds;
+};
+
+/// <a href="http://www.cryptolounge.org/wiki/Salsa20">Salsa20</a>, variable rounds: 8, 12 or 20 (default 20)
+struct Salsa20 : public Salsa20_Info, public SymmetricCipherDocumentation
+{
+ typedef SymmetricCipherFinal<ConcretePolicyHolder<Salsa20_Policy, AdditiveCipherTemplate<> >, Salsa20_Info> Encryption;
+ typedef Encryption Decryption;
+};
+
+NAMESPACE_END
+
+#endif
|