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#ifndef CRYPTOPP_SAFER_H
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#define CRYPTOPP_SAFER_H
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#include "seckey.h"
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#include "secblock.h"
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00010 NAMESPACE_BEGIN(CryptoPP)
00011
00012
00013 class
SAFER
00014 {
00015
public:
00016
class Base :
public BlockCipher
00017 {
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public:
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unsigned int GetAlignment()
const {
return 1;}
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void UncheckedSetKey(
CipherDir dir,
const byte *userkey,
unsigned int length,
unsigned nof_rounds);
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00022
bool strengthened;
00023
SecByteBlock keySchedule;
00024
static const byte exp_tab[256];
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static const byte log_tab[256];
00026 };
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class Enc :
public Base
00029 {
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public:
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void ProcessAndXorBlock(
const byte *inBlock,
const byte *xorBlock, byte *outBlock)
const;
00032 };
00033
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class Dec :
public Base
00035 {
00036
public:
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void ProcessAndXorBlock(
const byte *inBlock,
const byte *xorBlock, byte *outBlock)
const;
00038 };
00039 };
00040
00041
struct SAFER_K_Info :
public FixedBlockSize<8>,
public VariableKeyLength<16, 8, 16, 8>,
public VariableRounds<10, 1, 13>
00042 {
00043
static const char *StaticAlgorithmName() {
return "SAFER-K";}
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static unsigned int DefaultRounds(
unsigned int keylength) {
return keylength == 8 ? 6 : 10;}
00045 };
00046
00047
00048 class SAFER_K :
public SAFER_K_Info,
public SAFER,
public BlockCipherDocumentation
00049 {
00050
class Enc :
public BlockCipherBaseTemplate<SAFER_K_Info, SAFER::Enc>
00051 {
00052
public:
00053 Enc() {strengthened =
false;}
00054 };
00055
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class Dec :
public BlockCipherBaseTemplate<SAFER_K_Info, SAFER::Dec>
00057 {
00058
public:
00059 Dec() {strengthened =
false;}
00060 };
00061
00062
public:
00063 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00064 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00065 };
00066
00067
struct SAFER_SK_Info :
public FixedBlockSize<8>,
public VariableKeyLength<16, 8, 16, 8>,
public VariableRounds<10, 1, 13>
00068 {
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static const char *StaticAlgorithmName() {
return "SAFER-SK";}
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static unsigned int DefaultRounds(
unsigned int keylength) {
return keylength == 8 ? 8 : 10;}
00071 };
00072
00073
00074 class SAFER_SK :
public SAFER_SK_Info,
public SAFER,
public BlockCipherDocumentation
00075 {
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class Enc :
public BlockCipherBaseTemplate<SAFER_SK_Info, SAFER::Enc>
00077 {
00078
public:
00079 Enc() {strengthened =
true;}
00080 };
00081
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class Dec :
public BlockCipherBaseTemplate<SAFER_SK_Info, SAFER::Dec>
00083 {
00084
public:
00085 Dec() {strengthened =
true;}
00086 };
00087
00088
public:
00089 typedef BlockCipherTemplate<ENCRYPTION, Enc> Encryption;
00090 typedef BlockCipherTemplate<DECRYPTION, Dec> Decryption;
00091 };
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typedef SAFER_K::Encryption SAFER_K_Encryption;
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typedef SAFER_K::Decryption SAFER_K_Decryption;
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typedef SAFER_SK::Encryption SAFER_SK_Encryption;
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typedef SAFER_SK::Decryption SAFER_SK_Decryption;
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00099 NAMESPACE_END
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#endif