summaryrefslogtreecommitdiffstats
path: root/cryptopp562/safer.cpp
diff options
context:
space:
mode:
authorMalfurious <m@lfurio.us>2024-10-21 11:09:00 -0400
committerMalfurious <m@lfurio.us>2024-10-24 06:41:41 -0400
commit5494fc310acf0aabb9d828451331e44483eb21c7 (patch)
tree77280a586d52470fca89b9ed73f5f1faaf7907c6 /cryptopp562/safer.cpp
parent428471d39fb8c205a9fad899c88c30a2cb7df685 (diff)
downloadcompass-5494fc310acf0aabb9d828451331e44483eb21c7.tar.gz
compass-5494fc310acf0aabb9d828451331e44483eb21c7.zip
Remove Crypto++ library
The tracked version of Crypto++ is going on 10 years old and doesn't always compile properly on modern tooling. This removes the entire subdirectory as well as references to files in the build script. Due to the number of files touched by this commit, I opt to add its replacement in the next commit. Signed-off-by: Malfurious <m@lfurio.us>
Diffstat (limited to 'cryptopp562/safer.cpp')
-rw-r--r--cryptopp562/safer.cpp153
1 files changed, 0 insertions, 153 deletions
diff --git a/cryptopp562/safer.cpp b/cryptopp562/safer.cpp
deleted file mode 100644
index d46ca64..0000000
--- a/cryptopp562/safer.cpp
+++ /dev/null
@@ -1,153 +0,0 @@
-// safer.cpp - modified by by Wei Dai from Richard De Moliner's safer.c
-
-#include "pch.h"
-#include "safer.h"
-#include "misc.h"
-#include "argnames.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-const byte SAFER::Base::exp_tab[256] =
- {1, 45, 226, 147, 190, 69, 21, 174, 120, 3, 135, 164, 184, 56, 207, 63,
- 8, 103, 9, 148, 235, 38, 168, 107, 189, 24, 52, 27, 187, 191, 114, 247,
- 64, 53, 72, 156, 81, 47, 59, 85, 227, 192, 159, 216, 211, 243, 141, 177,
- 255, 167, 62, 220, 134, 119, 215, 166, 17, 251, 244, 186, 146, 145, 100, 131,
- 241, 51, 239, 218, 44, 181, 178, 43, 136, 209, 153, 203, 140, 132, 29, 20,
- 129, 151, 113, 202, 95, 163, 139, 87, 60, 130, 196, 82, 92, 28, 232, 160,
- 4, 180, 133, 74, 246, 19, 84, 182, 223, 12, 26, 142, 222, 224, 57, 252,
- 32, 155, 36, 78, 169, 152, 158, 171, 242, 96, 208, 108, 234, 250, 199, 217,
- 0, 212, 31, 110, 67, 188, 236, 83, 137, 254, 122, 93, 73, 201, 50, 194,
- 249, 154, 248, 109, 22, 219, 89, 150, 68, 233, 205, 230, 70, 66, 143, 10,
- 193, 204, 185, 101, 176, 210, 198, 172, 30, 65, 98, 41, 46, 14, 116, 80,
- 2, 90, 195, 37, 123, 138, 42, 91, 240, 6, 13, 71, 111, 112, 157, 126,
- 16, 206, 18, 39, 213, 76, 79, 214, 121, 48, 104, 54, 117, 125, 228, 237,
- 128, 106, 144, 55, 162, 94, 118, 170, 197, 127, 61, 175, 165, 229, 25, 97,
- 253, 77, 124, 183, 11, 238, 173, 75, 34, 245, 231, 115, 35, 33, 200, 5,
- 225, 102, 221, 179, 88, 105, 99, 86, 15, 161, 49, 149, 23, 7, 58, 40};
-
-const byte SAFER::Base::log_tab[256] =
- {128, 0, 176, 9, 96, 239, 185, 253, 16, 18, 159, 228, 105, 186, 173, 248,
- 192, 56, 194, 101, 79, 6, 148, 252, 25, 222, 106, 27, 93, 78, 168, 130,
- 112, 237, 232, 236, 114, 179, 21, 195, 255, 171, 182, 71, 68, 1, 172, 37,
- 201, 250, 142, 65, 26, 33, 203, 211, 13, 110, 254, 38, 88, 218, 50, 15,
- 32, 169, 157, 132, 152, 5, 156, 187, 34, 140, 99, 231, 197, 225, 115, 198,
- 175, 36, 91, 135, 102, 39, 247, 87, 244, 150, 177, 183, 92, 139, 213, 84,
- 121, 223, 170, 246, 62, 163, 241, 17, 202, 245, 209, 23, 123, 147, 131, 188,
- 189, 82, 30, 235, 174, 204, 214, 53, 8, 200, 138, 180, 226, 205, 191, 217,
- 208, 80, 89, 63, 77, 98, 52, 10, 72, 136, 181, 86, 76, 46, 107, 158,
- 210, 61, 60, 3, 19, 251, 151, 81, 117, 74, 145, 113, 35, 190, 118, 42,
- 95, 249, 212, 85, 11, 220, 55, 49, 22, 116, 215, 119, 167, 230, 7, 219,
- 164, 47, 70, 243, 97, 69, 103, 227, 12, 162, 59, 28, 133, 24, 4, 29,
- 41, 160, 143, 178, 90, 216, 166, 126, 238, 141, 83, 75, 161, 154, 193, 14,
- 122, 73, 165, 44, 129, 196, 199, 54, 43, 127, 67, 149, 51, 242, 108, 104,
- 109, 240, 2, 40, 206, 221, 155, 234, 94, 153, 124, 20, 134, 207, 229, 66,
- 184, 64, 120, 45, 58, 233, 100, 31, 146, 144, 125, 57, 111, 224, 137, 48};
-
-#define EXP(x) exp_tab[(x)]
-#define LOG(x) log_tab[(x)]
-#define PHT(x, y) { y += x; x += y; }
-#define IPHT(x, y) { x -= y; y -= x; }
-
-static const unsigned int BLOCKSIZE = 8;
-static const unsigned int MAX_ROUNDS = 13;
-
-void SAFER::Base::UncheckedSetKey(const byte *userkey_1, unsigned int length, const NameValuePairs &params)
-{
- bool strengthened = Strengthened();
- unsigned int nof_rounds = params.GetIntValueWithDefault(Name::Rounds(), length == 8 ? (strengthened ? 8 : 6) : 10);
-
- const byte *userkey_2 = length == 8 ? userkey_1 : userkey_1 + 8;
- keySchedule.New(1 + BLOCKSIZE * (1 + 2 * nof_rounds));
-
- unsigned int i, j;
- byte *key = keySchedule;
- SecByteBlock ka(BLOCKSIZE + 1), kb(BLOCKSIZE + 1);
-
- if (MAX_ROUNDS < nof_rounds)
- nof_rounds = MAX_ROUNDS;
- *key++ = (unsigned char)nof_rounds;
- ka[BLOCKSIZE] = 0;
- kb[BLOCKSIZE] = 0;
- for (j = 0; j < BLOCKSIZE; j++)
- {
- ka[BLOCKSIZE] ^= ka[j] = rotlFixed(userkey_1[j], 5U);
- kb[BLOCKSIZE] ^= kb[j] = *key++ = userkey_2[j];
- }
-
- for (i = 1; i <= nof_rounds; i++)
- {
- for (j = 0; j < BLOCKSIZE + 1; j++)
- {
- ka[j] = rotlFixed(ka[j], 6U);
- kb[j] = rotlFixed(kb[j], 6U);
- }
- for (j = 0; j < BLOCKSIZE; j++)
- if (strengthened)
- *key++ = (ka[(j + 2 * i - 1) % (BLOCKSIZE + 1)]
- + exp_tab[exp_tab[18 * i + j + 1]]) & 0xFF;
- else
- *key++ = (ka[j] + exp_tab[exp_tab[18 * i + j + 1]]) & 0xFF;
- for (j = 0; j < BLOCKSIZE; j++)
- if (strengthened)
- *key++ = (kb[(j + 2 * i) % (BLOCKSIZE + 1)]
- + exp_tab[exp_tab[18 * i + j + 10]]) & 0xFF;
- else
- *key++ = (kb[j] + exp_tab[exp_tab[18 * i + j + 10]]) & 0xFF;
- }
-}
-
-typedef BlockGetAndPut<byte, BigEndian> Block;
-
-void SAFER::Enc::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
- byte a, b, c, d, e, f, g, h, t;
- const byte *key = keySchedule+1;
- unsigned int round = keySchedule[0];
-
- Block::Get(inBlock)(a)(b)(c)(d)(e)(f)(g)(h);
- while(round--)
- {
- a ^= key[0]; b += key[1]; c += key[2]; d ^= key[3];
- e ^= key[4]; f += key[5]; g += key[6]; h ^= key[7];
- a = EXP(a) + key[ 8]; b = LOG(b) ^ key[ 9];
- c = LOG(c) ^ key[10]; d = EXP(d) + key[11];
- e = EXP(e) + key[12]; f = LOG(f) ^ key[13];
- g = LOG(g) ^ key[14]; h = EXP(h) + key[15];
- key += 16;
- PHT(a, b); PHT(c, d); PHT(e, f); PHT(g, h);
- PHT(a, c); PHT(e, g); PHT(b, d); PHT(f, h);
- PHT(a, e); PHT(b, f); PHT(c, g); PHT(d, h);
- t = b; b = e; e = c; c = t; t = d; d = f; f = g; g = t;
- }
- a ^= key[0]; b += key[1]; c += key[2]; d ^= key[3];
- e ^= key[4]; f += key[5]; g += key[6]; h ^= key[7];
- Block::Put(xorBlock, outBlock)(a)(b)(c)(d)(e)(f)(g)(h);
-}
-
-void SAFER::Dec::ProcessAndXorBlock(const byte *inBlock, const byte *xorBlock, byte *outBlock) const
-{
- byte a, b, c, d, e, f, g, h, t;
- unsigned int round = keySchedule[0];
- const byte *key = keySchedule + BLOCKSIZE * (1 + 2 * round) - 7;
-
- Block::Get(inBlock)(a)(b)(c)(d)(e)(f)(g)(h);
- h ^= key[7]; g -= key[6]; f -= key[5]; e ^= key[4];
- d ^= key[3]; c -= key[2]; b -= key[1]; a ^= key[0];
- while (round--)
- {
- key -= 16;
- t = e; e = b; b = c; c = t; t = f; f = d; d = g; g = t;
- IPHT(a, e); IPHT(b, f); IPHT(c, g); IPHT(d, h);
- IPHT(a, c); IPHT(e, g); IPHT(b, d); IPHT(f, h);
- IPHT(a, b); IPHT(c, d); IPHT(e, f); IPHT(g, h);
- h -= key[15]; g ^= key[14]; f ^= key[13]; e -= key[12];
- d -= key[11]; c ^= key[10]; b ^= key[9]; a -= key[8];
- h = LOG(h) ^ key[7]; g = EXP(g) - key[6];
- f = EXP(f) - key[5]; e = LOG(e) ^ key[4];
- d = LOG(d) ^ key[3]; c = EXP(c) - key[2];
- b = EXP(b) - key[1]; a = LOG(a) ^ key[0];
- }
- Block::Put(xorBlock, outBlock)(a)(b)(c)(d)(e)(f)(g)(h);
-}
-
-NAMESPACE_END