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-rw-r--r--CryptoPP/rc5.cpp79
1 files changed, 0 insertions, 79 deletions
diff --git a/CryptoPP/rc5.cpp b/CryptoPP/rc5.cpp
deleted file mode 100644
index 2b730def7..000000000
--- a/CryptoPP/rc5.cpp
+++ /dev/null
@@ -1,79 +0,0 @@
-// rc5.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-#include "rc5.h"
-#include "misc.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-void RC5::Base::UncheckedSetKey(const byte *k, unsigned int keylen, const NameValuePairs &params)
-{
- AssertValidKeyLength(keylen);
-
- r = GetRoundsAndThrowIfInvalid(params, this);
- sTable.New(2*(r+1));
-
- static const RC5_WORD MAGIC_P = 0xb7e15163L; // magic constant P for wordsize
- static const RC5_WORD MAGIC_Q = 0x9e3779b9L; // magic constant Q for wordsize
- static const int U=sizeof(RC5_WORD);
-
- const unsigned int c = STDMAX((keylen+U-1)/U, 1U); // RC6 paper says c=1 if keylen==0
- SecBlock<RC5_WORD> l(c);
-
- GetUserKey(LITTLE_ENDIAN_ORDER, l.begin(), c, k, keylen);
-
- sTable[0] = MAGIC_P;
- for (unsigned j=1; j<sTable.size();j++)
- sTable[j] = sTable[j-1] + MAGIC_Q;
-
- RC5_WORD a=0, b=0;
- const unsigned n = 3*STDMAX((unsigned int)sTable.size(), c);
-
- for (unsigned h=0; h < n; h++)
- {
- a = sTable[h % sTable.size()] = rotlFixed((sTable[h % sTable.size()] + a + b), 3);
- b = l[h % c] = rotlMod((l[h % c] + a + b), (a+b));
- }
-}
-
-typedef BlockGetAndPut<RC5::RC5_WORD, LittleEndian> Block;
-
-void RC5::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
- const RC5_WORD *sptr = sTable;
- RC5_WORD a, b;
-
- Block::Get(inBlock)(a)(b);
- a += sptr[0];
- b += sptr[1];
- sptr += 2;
-
- for(unsigned i=0; i<r; i++)
- {
- a = rotlMod(a^b,b) + sptr[2*i+0];
- b = rotlMod(a^b,a) + sptr[2*i+1];
- }
-
- Block::Put(xorBlock, outBlock)(a)(b);
-}
-
-void RC5::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
- const RC5_WORD *sptr = sTable.end();
- RC5_WORD a, b;
-
- Block::Get(inBlock)(a)(b);
-
- for (unsigned i=0; i<r; i++)
- {
- sptr-=2;
- b = rotrMod(b-sptr[1], a) ^ a;
- a = rotrMod(a-sptr[0], b) ^ b;
- }
- b -= sTable[1];
- a -= sTable[0];
-
- Block::Put(xorBlock, outBlock)(a)(b);
-}
-
-NAMESPACE_END