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Remove variable block size for Threefish (GH #535)

pull/548/head
Jeffrey Walton 2017-11-17 19:15:14 -05:00
parent dbd79a1e49
commit b9bd51f7a6
No known key found for this signature in database
GPG Key ID: B36AB348921B1838
5 changed files with 285 additions and 236 deletions
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49
TestVectors/threefish.txt
View File

@ -1,5 +1,21 @@
AlgorithmType: SymmetricCipher AlgorithmType: SymmetricCipher
Name: Threefish/ECB Name: Threefish-256(256)/ECB
Comment: Test Vector 5, Threefish-256, null tweak
Source: skein_golden_kat_internals.txt
Tweak: word64 0000000000000000 0000000000000000
Key: word64 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Plaintext: word64 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Ciphertext: word64 94EEEA8B1F2ADA84 ADF103313EAE6670 952419A1F4B16D53 D83F13E63C9F6B11
Test: Encrypt
Name: Threefish-256(256)/ECB
Comment: Test Vector 6, Threefish-256, tweak
Source: skein_golden_kat_internals.txt
Tweak: word64 0706050403020100 0F0E0D0C0B0A0908
Key: word64 1716151413121110 1F1E1D1C1B1A1918 2726252423222120 2F2E2D2C2B2A2928
Plaintext: word64 F8F9FAFBFCFDFEFF F0F1F2F3F4F5F6F7 E8E9EAEBECEDEEEF E0E1E2E3E4E5E6E7
Ciphertext: word64 DF8FEA0EFF91D0E0 D50AD82EE69281C9 76F48D58085D869D DF975E95B5567065
Test: Encrypt
Name: Threefish-512(512)/ECB
Comment: Test Vector 1 Comment: Test Vector 1
Source: Botan test vectors (threefish.vec) Source: Botan test vectors (threefish.vec)
Key: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 \ Key: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 \
@ -9,7 +25,7 @@ Plaintext: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Ciphertext: B1A2BBC6EF6025BC 40EB3822161F36E3 75D1BB0AEE3186FB D19E47C5D479947B \ Ciphertext: B1A2BBC6EF6025BC 40EB3822161F36E3 75D1BB0AEE3186FB D19E47C5D479947B \
7BC2F8586E35F0CF F7E7F03084B0B7B1 F1AB3961A580A3E9 7EB41EA14A6D7BBE 7BC2F8586E35F0CF F7E7F03084B0B7B1 F1AB3961A580A3E9 7EB41EA14A6D7BBE
Test: Encrypt Test: Encrypt
Name: Threefish/ECB Name: Threefish-512(512)/ECB
Comment: Test Vector 2 Comment: Test Vector 2
Source: Botan test vectors (threefish.vec) Source: Botan test vectors (threefish.vec)
Key: B1A2BBC6EF6025BC 40EB3822161F36E3 75D1BB0AEE3186FB D19E47C5D479947B \ Key: B1A2BBC6EF6025BC 40EB3822161F36E3 75D1BB0AEE3186FB D19E47C5D479947B \
@ -19,7 +35,7 @@ Plaintext: 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Ciphertext: F13CA06760DD9BBE AB87B6C56F3BBBDB E9D08A77978B942A C02D471DC10268F2 \ Ciphertext: F13CA06760DD9BBE AB87B6C56F3BBBDB E9D08A77978B942A C02D471DC10268F2 \
261C3D4330D6CA34 1F4BD4115DEE16A2 1DCDA2A34A0A76FB A976174E4CF1E306 261C3D4330D6CA34 1F4BD4115DEE16A2 1DCDA2A34A0A76FB A976174E4CF1E306
Test: Encrypt Test: Encrypt
Name: Threefish/ECB Name: Threefish-512(512)/ECB
Comment: Test Vector 3 Comment: Test Vector 3
Source: Botan test vectors (threefish.vec) Source: Botan test vectors (threefish.vec)
Key: F13CA06760DD9BBE AB87B6C56F3BBBDB E9D08A77978B942A C02D471DC10268F2 \ Key: F13CA06760DD9BBE AB87B6C56F3BBBDB E9D08A77978B942A C02D471DC10268F2 \
@ -29,7 +45,7 @@ Plaintext: B1A2BBC6EF6025BC 40EB3822161F36E3 75D1BB0AEE3186FB D19E47C5D479947B \
Ciphertext: 1BEC82CBA1357566 B34E1CF1FBF123A1 41C8F4089F6E4CE3 209AEA10095AEC93 \ Ciphertext: 1BEC82CBA1357566 B34E1CF1FBF123A1 41C8F4089F6E4CE3 209AEA10095AEC93 \
C900D068BDC7F7A2 DD58513C11DEC956 B93169B1C4F24CED E31A265DE83E36B4 C900D068BDC7F7A2 DD58513C11DEC956 B93169B1C4F24CED E31A265DE83E36B4
Test: Encrypt Test: Encrypt
Name: Threefish/ECB Name: Threefish-512(512)/ECB
Comment: Test Vector 4 Comment: Test Vector 4
Source: Botan test vectors (threefish.vec) Source: Botan test vectors (threefish.vec)
Key: F13CA06760DD9BBE AB87B6C56F3BBBDB E9D08A77978B942A C02D471DC10268F2 \ Key: F13CA06760DD9BBE AB87B6C56F3BBBDB E9D08A77978B942A C02D471DC10268F2 \
@ -43,24 +59,7 @@ Ciphertext: 1BEC82CBA1357566 B34E1CF1FBF123A1 41C8F4089F6E4CE3 209AEA10095AEC93
073CB5F8FABFA17D B751477F294EB3DD 4ACD92B78397331F CC36A9C3D3055B81 \ 073CB5F8FABFA17D B751477F294EB3DD 4ACD92B78397331F CC36A9C3D3055B81 \
D867CBDD56279037 373359CA1832669A F4B87A1F2FDAF8D3 6E2FB7A6D19F5D45 D867CBDD56279037 373359CA1832669A F4B87A1F2FDAF8D3 6E2FB7A6D19F5D45
Test: Encrypt Test: Encrypt
################################################################################## Name: Threefish-512(512)/ECB
Name: Threefish/ECB
Comment: Test Vector 5, Threefish-256, null tweak
Source: skein_golden_kat_internals.txt
Tweak: word64 0000000000000000 0000000000000000
Key: word64 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Plaintext: word64 0000000000000000 0000000000000000 0000000000000000 0000000000000000
Ciphertext: word64 94EEEA8B1F2ADA84 ADF103313EAE6670 952419A1F4B16D53 D83F13E63C9F6B11
Test: Encrypt
Name: Threefish/ECB
Comment: Test Vector 6, Threefish-256, tweak
Source: skein_golden_kat_internals.txt
Tweak: word64 0706050403020100 0F0E0D0C0B0A0908
Key: word64 1716151413121110 1F1E1D1C1B1A1918 2726252423222120 2F2E2D2C2B2A2928
Plaintext: word64 F8F9FAFBFCFDFEFF F0F1F2F3F4F5F6F7 E8E9EAEBECEDEEEF E0E1E2E3E4E5E6E7
Ciphertext: word64 DF8FEA0EFF91D0E0 D50AD82EE69281C9 76F48D58085D869D DF975E95B5567065
Test: Encrypt
Name: Threefish/ECB
Comment: Test Vector 7, Threefish-512, null tweak Comment: Test Vector 7, Threefish-512, null tweak
Source: skein_golden_kat_internals.txt Source: skein_golden_kat_internals.txt
Tweak: word64 0000000000000000 0000000000000000 Tweak: word64 0000000000000000 0000000000000000
@ -71,7 +70,7 @@ Plaintext: word64 0000000000000000 0000000000000000 0000000000000000 00000000
Ciphertext: word64 BC2560EFC6BBA2B1 E3361F162238EB40 FB8631EE0ABBD175 7B9479D4C5479ED1 \ Ciphertext: word64 BC2560EFC6BBA2B1 E3361F162238EB40 FB8631EE0ABBD175 7B9479D4C5479ED1 \
CFF0356E58F8C27B B1B7B08430F0E7F7 E9A380A56139ABF1 BE7B6D4AA11EB47E CFF0356E58F8C27B B1B7B08430F0E7F7 E9A380A56139ABF1 BE7B6D4AA11EB47E
Test: Encrypt Test: Encrypt
Name: Threefish/ECB Name: Threefish-512(512)/ECB
Comment: Test Vector 8, Threefish-512, tweak Comment: Test Vector 8, Threefish-512, tweak
Source: skein_golden_kat_internals.txt Source: skein_golden_kat_internals.txt
Tweak: word64 0706050403020100 0F0E0D0C0B0A0908 Tweak: word64 0706050403020100 0F0E0D0C0B0A0908
@ -82,7 +81,7 @@ Plaintext: word64 F8F9FAFBFCFDFEFF F0F1F2F3F4F5F6F7 E8E9EAEBECEDEEEF E0E1E2E3
Ciphertext: word64 2C5AD426964304E3 9A2436D6D8CA01B4 DD456DB00E333863 794725970EB9368B \ Ciphertext: word64 2C5AD426964304E3 9A2436D6D8CA01B4 DD456DB00E333863 794725970EB9368B \
043546998D0A2A27 25A7C918EA204478 346201A1FEDF11AF 3DAF1C5C3D672789 043546998D0A2A27 25A7C918EA204478 346201A1FEDF11AF 3DAF1C5C3D672789
Test: Encrypt Test: Encrypt
Name: Threefish/ECB Name: Threefish-1024(1024)/ECB
Comment: Test Vector 9, Threefish-1024, null tweak Comment: Test Vector 9, Threefish-1024, null tweak
Source: skein_golden_kat_internals.txt Source: skein_golden_kat_internals.txt
Tweak: word64 0000000000000000 0000000000000000 Tweak: word64 0000000000000000 0000000000000000
@ -99,7 +98,7 @@ Ciphertext: word64 04B3053D0A3D5CF0 0136E0D1C7DD85F7 067B212F6EA78A5C 0DA9C10
540306B460472E0B 71C18254BCEA820D C36B4068BEAF32C8 FA4329597A360095 \ 540306B460472E0B 71C18254BCEA820D C36B4068BEAF32C8 FA4329597A360095 \
C4A36C28434A5B9A D54331444B1046CF DF11834830B2A460 1E39E8DFE1F7EE4F C4A36C28434A5B9A D54331444B1046CF DF11834830B2A460 1E39E8DFE1F7EE4F
Test: Encrypt Test: Encrypt
Name: Threefish/ECB Name: Threefish-1024(1024)/ECB
Comment: Test Vector 10, Threefish-1024, tweak Comment: Test Vector 10, Threefish-1024, tweak
Source: skein_golden_kat_internals.txt Source: skein_golden_kat_internals.txt
Tweak: word64 0706050403020100 0F0E0D0C0B0A0908 Tweak: word64 0706050403020100 0F0E0D0C0B0A0908

8
bench1.cpp
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@ -6,6 +6,8 @@
#include "validate.h" #include "validate.h"
#include "aes.h" #include "aes.h"
#include "kalyna.h"
#include "threefish.h"
#include "blumshub.h" #include "blumshub.h"
#include "files.h" #include "files.h"
#include "filters.h" #include "filters.h"
@ -575,9 +577,9 @@ void Benchmark2(double t, double hertz)
BenchMarkByName<SymmetricCipher>("Camellia/CTR", 16); BenchMarkByName<SymmetricCipher>("Camellia/CTR", 16);
BenchMarkByName<SymmetricCipher>("Camellia/CTR", 32); BenchMarkByName<SymmetricCipher>("Camellia/CTR", 32);
BenchMarkByName<SymmetricCipher>("Twofish/CTR"); BenchMarkByName<SymmetricCipher>("Twofish/CTR");
BenchMarkByName<SymmetricCipher>("Threefish/CTR", 32, "Threefish/CTR (256-bit key)", MakeParameters(Name::BlockSize(), 32)); BenchMarkByName<SymmetricCipher>("Threefish-256(256)/CTR", 32);
BenchMarkByName<SymmetricCipher>("Threefish/CTR", 64, "Threefish/CTR (512-bit key)", MakeParameters(Name::BlockSize(), 64)); BenchMarkByName<SymmetricCipher>("Threefish-512(512)/CTR", 64);
BenchMarkByName<SymmetricCipher>("Threefish/CTR", 128, "Threefish/CTR (1024-bit key)", MakeParameters(Name::BlockSize(), 128)); BenchMarkByName<SymmetricCipher>("Threefish-1024(1024)/CTR", 128);
BenchMarkByName<SymmetricCipher>("Serpent/CTR"); BenchMarkByName<SymmetricCipher>("Serpent/CTR");
BenchMarkByName<SymmetricCipher>("CAST-256/CTR"); BenchMarkByName<SymmetricCipher>("CAST-256/CTR");
BenchMarkByName<SymmetricCipher>("RC6/CTR"); BenchMarkByName<SymmetricCipher>("RC6/CTR");

14
regtest2.cpp
View File

@ -142,9 +142,17 @@ void RegisterFactories2()
RegisterSymmetricCipherDefaultFactories<ECB_Mode<Kalyna> >(); // Test Vectors RegisterSymmetricCipherDefaultFactories<ECB_Mode<Kalyna> >(); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CBC_Mode<Kalyna> >(); // Test Vectors RegisterSymmetricCipherDefaultFactories<CBC_Mode<Kalyna> >(); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CTR_Mode<Kalyna> >(); // Benchmarks RegisterSymmetricCipherDefaultFactories<CTR_Mode<Kalyna> >(); // Benchmarks
RegisterSymmetricCipherDefaultFactories<ECB_Mode<Threefish> >(); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CBC_Mode<Threefish> >(); // Test Vectors RegisterSymmetricCipherDefaultFactories<ECB_Mode<Threefish256> >("Threefish-256(256)/ECB"); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CTR_Mode<Threefish> >(); // Benchmarks RegisterSymmetricCipherDefaultFactories<CBC_Mode<Threefish256> >("Threefish-256(256)/CBC"); // Test Vectors
RegisterSymmetricCipherDefaultFactories<ECB_Mode<Threefish512> >("Threefish-512(512)/ECB"); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CBC_Mode<Threefish512> >("Threefish-512(512)/CBC"); // Test Vectors
RegisterSymmetricCipherDefaultFactories<ECB_Mode<Threefish1024> >("Threefish-1024(1024)/ECB"); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CBC_Mode<Threefish1024> >("Threefish-1024(1024)/CBC"); // Test Vectors
RegisterSymmetricCipherDefaultFactories<CTR_Mode<Threefish256> >("Threefish-256(256)/CTR"); // Benchmarks
RegisterSymmetricCipherDefaultFactories<CTR_Mode<Threefish512> >("Threefish-512(512)/CTR"); // Benchmarks
RegisterSymmetricCipherDefaultFactories<CTR_Mode<Threefish1024> >("Threefish-1024(1024)/CTR"); // Benchmarks
RegisterDefaultFactoryFor<KeyDerivationFunction, HKDF<SHA1> >(); RegisterDefaultFactoryFor<KeyDerivationFunction, HKDF<SHA1> >();
RegisterDefaultFactoryFor<KeyDerivationFunction, HKDF<SHA256> >(); RegisterDefaultFactoryFor<KeyDerivationFunction, HKDF<SHA256> >();

235
threefish.cpp
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@ -7,7 +7,6 @@
#include "threefish.h" #include "threefish.h"
#include "misc.h" #include "misc.h"
#include "cpu.h"
#include "algparam.h" #include "algparam.h"
#include "argnames.h" #include "argnames.h"
@ -236,100 +235,85 @@ ANONYMOUS_NAMESPACE_END
NAMESPACE_BEGIN(CryptoPP) NAMESPACE_BEGIN(CryptoPP)
void Threefish::Base::UncheckedSetKey(const byte *key, unsigned int keylen, const NameValuePairs &params) void Threefish256::Base::UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params)
{ {
switch (keylen) // Blocksize is Keylength for Threefish
{ CRYPTOPP_ASSERT(keyLength == KEYLENGTH);
case 32: // 256
m_rkey.New(5); m_rkey.New(5);
m_wspace.New(4); m_wspace.New(4);
m_blocksize = 32;
GetUserKey(LITTLE_ENDIAN_ORDER, m_rkey.begin(), 4, key, 32); GetUserKey(LITTLE_ENDIAN_ORDER, m_rkey.begin(), 4, userKey, keyLength);
m_rkey[4] = W64LIT(0x1BD11BDAA9FC1A22) ^ m_rkey[0] ^ m_rkey[1] ^ m_rkey[2] ^ m_rkey[3]; m_rkey[4] = W64LIT(0x1BD11BDAA9FC1A22) ^ m_rkey[0] ^ m_rkey[1] ^ m_rkey[2] ^ m_rkey[3];
break;
case 64: // 512
m_rkey.New(9);
m_wspace.New(8);
m_blocksize = 64;
GetUserKey(LITTLE_ENDIAN_ORDER, m_rkey.begin(), 8, key, 64); SetTweak(params);
m_rkey[8] = W64LIT(0x1BD11BDAA9FC1A22) ^ m_rkey[0] ^ m_rkey[1] ^ m_rkey[2] ^ m_rkey[3] ^ m_rkey[4] ^
m_rkey[5] ^ m_rkey[6] ^ m_rkey[7];
break;
case 128: // 128
m_rkey.New(17);
m_wspace.New(16);
m_blocksize = 128;
GetUserKey(LITTLE_ENDIAN_ORDER, m_rkey.begin(), 16, key, 128);
m_rkey[16] = W64LIT(0x1BD11BDAA9FC1A22) ^ m_rkey[0] ^ m_rkey[1] ^ m_rkey[2] ^ m_rkey[3] ^ m_rkey[4] ^
m_rkey[5] ^ m_rkey[6] ^ m_rkey[7] ^ m_rkey[8] ^ m_rkey[9] ^ m_rkey[10] ^ m_rkey[11] ^ m_rkey[12] ^
m_rkey[13] ^ m_rkey[14] ^ m_rkey[15];
break;
default:
CRYPTOPP_ASSERT(0);
}
m_tweak.New(3);
ConstByteArrayParameter t;
if (params.GetValue(Name::Tweak(), t))
{
CRYPTOPP_ASSERT(t.size() == 16);
GetUserKey(LITTLE_ENDIAN_ORDER, m_tweak.begin(), 2, t.begin(), 16);
m_tweak[2] = m_tweak[0] ^ m_tweak[1];
}
else
{
::memset(m_tweak.begin(), 0x00, 24);
}
} }
void Threefish::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const void Threefish256::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
switch(m_blocksize)
{
case 32:
ProcessAndXorBlock_256(inBlock, xorBlock, outBlock);
break;
case 64:
ProcessAndXorBlock_512(inBlock, xorBlock, outBlock);
break;
case 128:
ProcessAndXorBlock_1024(inBlock, xorBlock, outBlock);
break;
default:
CRYPTOPP_ASSERT(0);
}
}
void Threefish::Enc::ProcessAndXorBlock_256(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{ {
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3]; word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock; typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock); InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3); iblk(G0)(G1)(G2)(G3);
G0 += m_rkey[0]; G1 += m_rkey[1]; G2 += m_rkey[2]; G3 += m_rkey[3]; G0 += m_rkey[0]; G1 += m_rkey[1]; G2 += m_rkey[2];
G1 += m_tweak[0]; G2 += m_tweak[1]; G3 += m_rkey[3]; G1 += m_tweak[0]; G2 += m_tweak[1];
G256x8(0); G256x8(2); G256x8(4); G256x8(6); G256x8(8); G256x8(0); G256x8(2); G256x8(4); G256x8(6); G256x8(8);
G256x8(10); G256x8(12); G256x8(14); G256x8(16); G256x8(10); G256x8(12); G256x8(14); G256x8(16);
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock; typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock); OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3); oblk(G0)(G1)(G2)(G3);
} }
void Threefish::Enc::ProcessAndXorBlock_512(const byte *inBlock, const byte *xorBlock, byte *outBlock) const void Threefish256::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
// Reverse bytes on BigEndian; align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3);
G0 -= m_rkey[3]; G1 -= m_rkey[4]; G2 -= m_rkey[0]; G3 -= m_rkey[1];
G1 -= m_tweak[0]; G2 -= m_tweak[1]; G3 -= 18;
IG256x8(16); IG256x8(14); IG256x8(12); IG256x8(10);
IG256x8(8); IG256x8(6); IG256x8(4); IG256x8(2); IG256x8(0);
// Reverse bytes on BigEndian; align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3);
}
/////////////////////////////////////////////////////////////////
void Threefish512::Base::UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params)
{
// Blocksize is Keylength for Threefish
CRYPTOPP_ASSERT(keyLength == KEYLENGTH);
m_rkey.New(9);
m_wspace.New(8);
GetUserKey(LITTLE_ENDIAN_ORDER, m_rkey.begin(), 8, userKey, keyLength);
m_rkey[8] = W64LIT(0x1BD11BDAA9FC1A22) ^ m_rkey[0] ^ m_rkey[1] ^ m_rkey[2] ^ m_rkey[3] ^ m_rkey[4] ^
m_rkey[5] ^ m_rkey[6] ^ m_rkey[7];
SetTweak(params);
}
void Threefish512::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{ {
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3]; word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7]; word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7];
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock; typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock); InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7); iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7);
@ -342,20 +326,61 @@ void Threefish::Enc::ProcessAndXorBlock_512(const byte *inBlock, const byte *xor
G512x8(0); G512x8(2); G512x8(4); G512x8(6); G512x8(8); G512x8(0); G512x8(2); G512x8(4); G512x8(6); G512x8(8);
G512x8(10); G512x8(12); G512x8(14); G512x8(16); G512x8(10); G512x8(12); G512x8(14); G512x8(16);
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock; typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock); OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7); oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7);
} }
void Threefish::Enc::ProcessAndXorBlock_1024(const byte *inBlock, const byte *xorBlock, byte *outBlock) const void Threefish512::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7];
// Reverse bytes on BigEndian; align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7);
G0 -= m_rkey[0]; G1 -= m_rkey[1]; G2 -= m_rkey[2]; G3 -= m_rkey[3];
G4 -= m_rkey[4]; G5 -= m_rkey[5]; G6 -= m_rkey[6]; G7 -= m_rkey[7];
G5 -= m_tweak[0]; G6 -= m_tweak[1]; G7 -= 18;
IG512x8(16); IG512x8(14); IG512x8(12); IG512x8(10);
IG512x8(8); IG512x8(6); IG512x8(4); IG512x8(2); IG512x8(0);
// Reverse bytes on BigEndian; align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7);
}
/////////////////////////////////////////////////////////////////
void Threefish1024::Base::UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params)
{
// Blocksize is Keylength for Threefish
CRYPTOPP_ASSERT(keyLength == KEYLENGTH);
m_rkey.New(17);
m_wspace.New(16);
GetUserKey(LITTLE_ENDIAN_ORDER, m_rkey.begin(), 16, userKey, keyLength);
m_rkey[16] = W64LIT(0x1BD11BDAA9FC1A22) ^ m_rkey[0] ^ m_rkey[1] ^ m_rkey[2] ^ m_rkey[3] ^ m_rkey[4] ^
m_rkey[5] ^ m_rkey[6] ^ m_rkey[7] ^ m_rkey[8] ^ m_rkey[9] ^ m_rkey[10] ^ m_rkey[11] ^ m_rkey[12] ^
m_rkey[13] ^ m_rkey[14] ^ m_rkey[15];
SetTweak(params);
}
void Threefish1024::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{ {
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3]; word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7]; word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7];
word64 &G8=m_wspace[8], &G9=m_wspace[9], &G10=m_wspace[10], &G11=m_wspace[11]; word64 &G8=m_wspace[8], &G9=m_wspace[9], &G10=m_wspace[10], &G11=m_wspace[11];
word64 &G12=m_wspace[12], &G13=m_wspace[13], &G14=m_wspace[14], &G15=m_wspace[15]; word64 &G12=m_wspace[12], &G13=m_wspace[13], &G14=m_wspace[14], &G15=m_wspace[15];
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock; typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock); InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15); iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15);
@ -369,82 +394,20 @@ void Threefish::Enc::ProcessAndXorBlock_1024(const byte *inBlock, const byte *xo
G1024x8(0); G1024x8(2); G1024x8(4); G1024x8(6); G1024x8(8); G1024x8(0); G1024x8(2); G1024x8(4); G1024x8(6); G1024x8(8);
G1024x8(10); G1024x8(12); G1024x8(14); G1024x8(16); G1024x8(18); G1024x8(10); G1024x8(12); G1024x8(14); G1024x8(16); G1024x8(18);
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock; typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock); OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15); oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15);
} }
void Threefish::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const void Threefish1024::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
switch(m_blocksize)
{
case 32:
ProcessAndXorBlock_256(inBlock, xorBlock, outBlock);
break;
case 64:
ProcessAndXorBlock_512(inBlock, xorBlock, outBlock);
break;
case 128:
ProcessAndXorBlock_1024(inBlock, xorBlock, outBlock);
break;
default:
CRYPTOPP_ASSERT(0);
}
}
void Threefish::Dec::ProcessAndXorBlock_256(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
// Reverse bytes on BigEndian; Align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3);
G0 -= m_rkey[3]; G1 -= m_rkey[4]; G2 -= m_rkey[0]; G3 -= m_rkey[1];
G1 -= m_tweak[0]; G2 -= m_tweak[1]; G3 -= 18;
IG256x8(16); IG256x8(14); IG256x8(12); IG256x8(10);
IG256x8(8); IG256x8(6); IG256x8(4); IG256x8(2); IG256x8(0);
// Reverse bytes on BigEndian; Align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3);
}
void Threefish::Dec::ProcessAndXorBlock_512(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7];
// Reverse bytes on BigEndian; Align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7);
G0 -= m_rkey[0]; G1 -= m_rkey[1]; G2 -= m_rkey[2]; G3 -= m_rkey[3];
G4 -= m_rkey[4]; G5 -= m_rkey[5]; G6 -= m_rkey[6]; G7 -= m_rkey[7];
G5 -= m_tweak[0]; G6 -= m_tweak[1]; G7 -= 18;
IG512x8(16); IG512x8(14); IG512x8(12); IG512x8(10);
IG512x8(8); IG512x8(6); IG512x8(4); IG512x8(2); IG512x8(0);
// Reverse bytes on BigEndian; Align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7);
}
void Threefish::Dec::ProcessAndXorBlock_1024(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
{ {
word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3]; word64 &G0=m_wspace[0], &G1=m_wspace[1], &G2=m_wspace[2], &G3=m_wspace[3];
word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7]; word64 &G4=m_wspace[4], &G5=m_wspace[5], &G6=m_wspace[6], &G7=m_wspace[7];
word64 &G8=m_wspace[8], &G9=m_wspace[9], &G10=m_wspace[10], &G11=m_wspace[11]; word64 &G8=m_wspace[8], &G9=m_wspace[9], &G10=m_wspace[10], &G11=m_wspace[11];
word64 &G12=m_wspace[12], &G13=m_wspace[13], &G14=m_wspace[14], &G15=m_wspace[15]; word64 &G12=m_wspace[12], &G13=m_wspace[13], &G14=m_wspace[14], &G15=m_wspace[15];
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef GetBlock<word64, LittleEndian, false> InBlock; typedef GetBlock<word64, LittleEndian, false> InBlock;
InBlock iblk(inBlock); InBlock iblk(inBlock);
iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15); iblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15);
@ -458,7 +421,7 @@ void Threefish::Dec::ProcessAndXorBlock_1024(const byte *inBlock, const byte *xo
IG1024x8(18); IG1024x8(16); IG1024x8(14); IG1024x8(12); IG1024x8(10); IG1024x8(18); IG1024x8(16); IG1024x8(14); IG1024x8(12); IG1024x8(10);
IG1024x8(8); IG1024x8(6); IG1024x8(4); IG1024x8(2); IG1024x8(0); IG1024x8(8); IG1024x8(6); IG1024x8(4); IG1024x8(2); IG1024x8(0);
// Reverse bytes on BigEndian; Align pointer on LittleEndian // Reverse bytes on BigEndian; align pointer on LittleEndian
typedef PutBlock<word64, LittleEndian, false> OutBlock; typedef PutBlock<word64, LittleEndian, false> OutBlock;
OutBlock oblk(xorBlock, outBlock); OutBlock oblk(xorBlock, outBlock);
oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15); oblk(G0)(G1)(G2)(G3)(G4)(G5)(G6)(G7)(G8)(G9)(G10)(G11)(G12)(G13)(G14)(G15);

207
threefish.h
View File

@ -12,79 +12,75 @@
#include "config.h" #include "config.h"
#include "seckey.h" #include "seckey.h"
#include "secblock.h" #include "secblock.h"
#include "algparam.h"
#include "argnames.h"
#include "stdcpp.h"
NAMESPACE_BEGIN(CryptoPP) NAMESPACE_BEGIN(CryptoPP)
//! \class Threefish_Info //! \class Threefish_Info
//! \brief Threefish block cipher information //! \brief Threefish block cipher information
//! \note Crypto++ provides a byte oriented implementation //! \tparam BS block size of the cipher, in bytes
//! \since Crypto++ 6.0 //! \since Crypto++ 6.0
struct Threefish_Info : public VariableBlockSize<32, 32, 128> template <unsigned int BS>
struct Threefish_Info : public FixedBlockSize<BS>, FixedKeyLength<BS>
{ {
CRYPTOPP_STATIC_CONSTEXPR const char* StaticAlgorithmName() {return "Threefish";} static const std::string StaticAlgorithmName()
//! \brief The minimum key length used by the algorithm provided as a constant
//! \details MIN_KEYLENGTH is provided in bytes, not bits
CRYPTOPP_CONSTANT(MIN_KEYLENGTH=32)
//! \brief The maximum key length used by the algorithm provided as a constant
//! \details MIN_KEYLENGTH is provided in bytes, not bits
CRYPTOPP_CONSTANT(MAX_KEYLENGTH=128)
//! \brief The default key length used by the algorithm provided as a constant
//! \details MIN_KEYLENGTH is provided in bytes, not bits
CRYPTOPP_CONSTANT(DEFAULT_KEYLENGTH=32)
//! \brief The default IV requirements for the algorithm provided as a constant
//! \details The default value is NOT_RESYNCHRONIZABLE. See IV_Requirement
//! in cryptlib.h for allowed values.
CRYPTOPP_CONSTANT(IV_REQUIREMENT=SimpleKeyingInterface::UNIQUE_IV)
//! \brief The default initialization vector length for the algorithm provided as a constant
//! \details IV_LENGTH is provided in bytes, not bits.
CRYPTOPP_CONSTANT(IV_LENGTH=32)
//! \brief Provides a valid key length for the algorithm provided by a static function.
//! \param keylength the size of the key, in bytes
//! \details Threefish uses 256, 512 and 1024-bit keys. The block size follows key length.
CRYPTOPP_STATIC_CONSTEXPR size_t CRYPTOPP_API StaticGetValidKeyLength(size_t keylength)
{ {
// Valid key lengths are 256, 512 and 1024 bits // Format is Cipher-Blocksize(Keylength)
return (keylength >= 128) ? 128 : return "Threefish-" + IntToString(BS) + "(" + IntToString(BS) + ")";
(keylength >= 64) ? 64 : 32;
}
CRYPTOPP_STATIC_CONSTEXPR size_t CRYPTOPP_API StaticGetValidBlockSize(size_t keylength)
{
return (keylength >= 128) ? 128 :
(keylength >= 64) ? 64 : 32;
} }
}; };
//! \class Threefish //! \class Threefish_Base
//! \brief Threefish block cipher //! \brief Threefish block cipher base class
//! \sa <a href="http://www.cryptopp.com/wiki/Threefish">Threefish</a> //! \tparam BS block size of the cipher, in bytes
//! \details User code should use Threefish256, Threefish512, Threefish1024
//! \sa Threefish256, Threefish512, Threefish1024, <a href="http://www.cryptopp.com/wiki/Threefish">Threefish</a>
//! \since Crypto++ 6.0 //! \since Crypto++ 6.0
class Threefish : public Threefish_Info, public BlockCipherDocumentation template <unsigned int BS>
struct CRYPTOPP_NO_VTABLE Threefish_Base : public Threefish_Info<BS>
{ {
public:
//! \brief Threefish block cipher data processing functions void SetTweak(const NameValuePairs &params)
//! \details Provides implementation common to encryption and decryption
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Base : public VariableBlockCipherImpl<Threefish_Info>
{ {
public: m_tweak.New(3);
std::string AlgorithmName() const { ConstByteArrayParameter t;
// Key length is the same as blocksize if (params.GetValue(Name::Tweak(), t))
return m_blocksize ? "Threefish-" + IntToString(m_blocksize*8) : StaticAlgorithmName(); {
// Tweak size is fixed at 16 for Threefish
CRYPTOPP_ASSERT(t.size() == 16);
GetUserKey(LITTLE_ENDIAN_ORDER, m_tweak.begin(), 2, t.begin(), 16);
m_tweak[2] = m_tweak[0] ^ m_tweak[1];
}
else
{
std::memset(m_tweak.begin(), 0x00, 24);
} }
unsigned int OptimalDataAlignment() const {
return GetAlignmentOf<word64>();
} }
protected:
void UncheckedSetKey(const byte *key, unsigned int keylen, const NameValuePairs &params);
typedef SecBlock<word64, AllocatorWithCleanup<word64, true> > AlignedSecBlock64; typedef SecBlock<word64, AllocatorWithCleanup<word64, true> > AlignedSecBlock64;
mutable AlignedSecBlock64 m_wspace; // workspace mutable AlignedSecBlock64 m_wspace; // workspace
AlignedSecBlock64 m_rkey; // keys AlignedSecBlock64 m_rkey; // keys
AlignedSecBlock64 m_tweak; AlignedSecBlock64 m_tweak;
};
//! \class Threefish256
//! \brief Threefish 256-bit block cipher
//! \details Threefish256 provides 256-bit block size. The valid key size is 256-bit.
//! \note Crypto++ provides a byte oriented implementation
//! \sa Threefish256, Threefish512, Threefish1024, <a href="http://www.cryptopp.com/wiki/Threefish">Threefish</a>
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Threefish256 : public Threefish_Base<32>, public BlockCipherDocumentation
{
public:
//! \brief Threefish block cipher data processing functions
//! \details Provides implementation common to encryption and decryption
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Threefish_Base<32> >
{
protected:
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
}; };
//! \brief Provides implementation for encryption transformation //! \brief Provides implementation for encryption transformation
@ -95,33 +91,114 @@ public:
{ {
protected: protected:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
void ProcessAndXorBlock_256(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
void ProcessAndXorBlock_512(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
void ProcessAndXorBlock_1024(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
}; };
//! \brief Provides implementation for decryption transformation //! \brief Provides implementation for encryption transformation
//! \details Dec provides implementation for encryption transformation. All key and block //! \details Dec provides implementation for decryption transformation. All key and block
//! sizes are supported. //! sizes are supported.
//! \since Crypto++ 6.0 //! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Dec : public Base class CRYPTOPP_NO_VTABLE Dec : public Base
{ {
protected: protected:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const; void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
void ProcessAndXorBlock_256(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
void ProcessAndXorBlock_512(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
void ProcessAndXorBlock_1024(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
}; };
public:
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption; typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption; typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
}; };
typedef Threefish::Encryption ThreefishEncryption; typedef Threefish256::Encryption Threefish256Encryption;
typedef Threefish::Decryption ThreefishDecryption; typedef Threefish256::Decryption Threefish256Decryption;
//! \class Threefish512
//! \brief Threefish 512-bit block cipher
//! \details Threefish512 provides 512-bit block size. The valid key size is 512-bit.
//! \note Crypto++ provides a byte oriented implementation
//! \sa Threefish256, Threefish512, Threefish1024, <a href="http://www.cryptopp.com/wiki/Threefish">Threefish</a>
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Threefish512 : public Threefish_Base<64>, public BlockCipherDocumentation
{
public:
//! \brief Threefish block cipher data processing functions
//! \details Provides implementation common to encryption and decryption
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Threefish_Base<64> >
{
protected:
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
};
//! \brief Provides implementation for encryption transformation
//! \details Enc provides implementation for encryption transformation. All key and block
//! sizes are supported.
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Enc : public Base
{
protected:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
//! \brief Provides implementation for encryption transformation
//! \details Dec provides implementation for decryption transformation. All key and block
//! sizes are supported.
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Dec : public Base
{
protected:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
typedef Threefish512::Encryption Threefish512Encryption;
typedef Threefish512::Decryption Threefish512Decryption;
//! \class Threefish1024
//! \brief Threefish 1024-bit block cipher
//! \details Threefish1024 provides 1024-bit block size. The valid key size is 1024-bit.
//! \note Crypto++ provides a byte oriented implementation
//! \sa Threefish256, Threefish512, Threefish1024, <a href="http://www.cryptopp.com/wiki/Threefish">Threefish</a>
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Threefish1024 : public Threefish_Base<128>, public BlockCipherDocumentation
{
public:
//! \brief Threefish block cipher data processing functions
//! \details Provides implementation common to encryption and decryption
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Base : public BlockCipherImpl<Threefish_Base<128> >
{
protected:
void UncheckedSetKey(const byte *userKey, unsigned int keyLength, const NameValuePairs &params);
};
//! \brief Provides implementation for encryption transformation
//! \details Enc provides implementation for encryption transformation. All key and block
//! sizes are supported.
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Enc : public Base
{
protected:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
//! \brief Provides implementation for encryption transformation
//! \details Dec provides implementation for decryption transformation. All key and block
//! sizes are supported.
//! \since Crypto++ 6.0
class CRYPTOPP_NO_VTABLE Dec : public Base
{
protected:
void ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const;
};
typedef BlockCipherFinal<ENCRYPTION, Enc> Encryption;
typedef BlockCipherFinal<DECRYPTION, Dec> Decryption;
};
typedef Threefish1024::Encryption Threefish1024Encryption;
typedef Threefish1024::Decryption Threefish1024Decryption;
NAMESPACE_END NAMESPACE_END