/usr/include/crypto++/panama.h is in libcrypto++-dev 5.6.1-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 | #ifndef CRYPTOPP_PANAMA_H
#define CRYPTOPP_PANAMA_H
#include "strciphr.h"
#include "iterhash.h"
NAMESPACE_BEGIN(CryptoPP)
/// base class, do not use directly
template <class B>
class CRYPTOPP_NO_VTABLE Panama
{
public:
void Reset();
void Iterate(size_t count, const word32 *p=NULL, byte *output=NULL, const byte *input=NULL, KeystreamOperation operation=WRITE_KEYSTREAM);
protected:
typedef word32 Stage[8];
CRYPTOPP_CONSTANT(STAGES = 32)
FixedSizeAlignedSecBlock<word32, 20 + 8*32> m_state;
};
namespace Weak {
/// <a href="http://www.weidai.com/scan-mirror/md.html#Panama">Panama Hash</a>
template <class B = LittleEndian>
class PanamaHash : protected Panama<B>, public AlgorithmImpl<IteratedHash<word32, NativeByteOrder, 32>, PanamaHash<B> >
{
public:
CRYPTOPP_CONSTANT(DIGESTSIZE = 32)
PanamaHash() {Panama<B>::Reset();}
unsigned int DigestSize() const {return DIGESTSIZE;}
void TruncatedFinal(byte *hash, size_t size);
static const char * StaticAlgorithmName() {return B::ToEnum() == BIG_ENDIAN_ORDER ? "Panama-BE" : "Panama-LE";}
protected:
void Init() {Panama<B>::Reset();}
void HashEndianCorrectedBlock(const word32 *data) {this->Iterate(1, data);} // push
size_t HashMultipleBlocks(const word32 *input, size_t length);
word32* StateBuf() {return NULL;}
};
}
//! MAC construction using a hermetic hash function
template <class T_Hash, class T_Info = T_Hash>
class HermeticHashFunctionMAC : public AlgorithmImpl<SimpleKeyingInterfaceImpl<TwoBases<MessageAuthenticationCode, VariableKeyLength<32, 0, INT_MAX> > >, T_Info>
{
public:
void UncheckedSetKey(const byte *key, unsigned int length, const NameValuePairs ¶ms)
{
m_key.Assign(key, length);
Restart();
}
void Restart()
{
m_hash.Restart();
m_keyed = false;
}
void Update(const byte *input, size_t length)
{
if (!m_keyed)
KeyHash();
m_hash.Update(input, length);
}
void TruncatedFinal(byte *digest, size_t digestSize)
{
if (!m_keyed)
KeyHash();
m_hash.TruncatedFinal(digest, digestSize);
m_keyed = false;
}
unsigned int DigestSize() const
{return m_hash.DigestSize();}
unsigned int BlockSize() const
{return m_hash.BlockSize();}
unsigned int OptimalBlockSize() const
{return m_hash.OptimalBlockSize();}
unsigned int OptimalDataAlignment() const
{return m_hash.OptimalDataAlignment();}
protected:
void KeyHash()
{
m_hash.Update(m_key, m_key.size());
m_keyed = true;
}
T_Hash m_hash;
bool m_keyed;
SecByteBlock m_key;
};
namespace Weak {
/// Panama MAC
template <class B = LittleEndian>
class PanamaMAC : public HermeticHashFunctionMAC<PanamaHash<B> >
{
public:
PanamaMAC() {}
PanamaMAC(const byte *key, unsigned int length)
{this->SetKey(key, length);}
};
}
//! algorithm info
template <class B>
struct PanamaCipherInfo : public FixedKeyLength<32, SimpleKeyingInterface::UNIQUE_IV, 32>
{
static const char * StaticAlgorithmName() {return B::ToEnum() == BIG_ENDIAN_ORDER ? "Panama-BE" : "Panama-LE";}
};
//! _
template <class B>
class PanamaCipherPolicy : public AdditiveCipherConcretePolicy<word32, 8>,
public PanamaCipherInfo<B>,
protected Panama<B>
{
protected:
void CipherSetKey(const NameValuePairs ¶ms, const byte *key, size_t length);
void OperateKeystream(KeystreamOperation operation, byte *output, const byte *input, size_t iterationCount);
bool CipherIsRandomAccess() const {return false;}
void CipherResynchronize(byte *keystreamBuffer, const byte *iv, size_t length);
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X64
unsigned int GetAlignment() const;
#endif
FixedSizeSecBlock<word32, 8> m_key;
};
//! <a href="http://www.cryptolounge.org/wiki/PANAMA">Panama Stream Cipher</a>
template <class B = LittleEndian>
struct PanamaCipher : public PanamaCipherInfo<B>, public SymmetricCipherDocumentation
{
typedef SymmetricCipherFinal<ConcretePolicyHolder<PanamaCipherPolicy<B>, AdditiveCipherTemplate<> >, PanamaCipherInfo<B> > Encryption;
typedef Encryption Decryption;
};
NAMESPACE_END
#endif
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