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-rw-r--r--libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/DESEngine.java495
1 files changed, 0 insertions, 495 deletions
diff --git a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/DESEngine.java b/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/DESEngine.java
deleted file mode 100644
index 68d7ea156..000000000
--- a/libraries/spongycastle/core/src/main/java/org/spongycastle/crypto/engines/DESEngine.java
+++ /dev/null
@@ -1,495 +0,0 @@
-package org.spongycastle.crypto.engines;
-
-import org.spongycastle.crypto.BlockCipher;
-import org.spongycastle.crypto.CipherParameters;
-import org.spongycastle.crypto.DataLengthException;
-import org.spongycastle.crypto.OutputLengthException;
-import org.spongycastle.crypto.params.KeyParameter;
-
-/**
- * a class that provides a basic DES engine.
- */
-public class DESEngine
- implements BlockCipher
-{
- protected static final int BLOCK_SIZE = 8;
-
- private int[] workingKey = null;
-
- /**
- * standard constructor.
- */
- public DESEngine()
- {
- }
-
- /**
- * initialise a DES cipher.
- *
- * @param encrypting whether or not we are for encryption.
- * @param params the parameters required to set up the cipher.
- * @exception IllegalArgumentException if the params argument is
- * inappropriate.
- */
- public void init(
- boolean encrypting,
- CipherParameters params)
- {
- if (params instanceof KeyParameter)
- {
- if (((KeyParameter)params).getKey().length > 8)
- {
- throw new IllegalArgumentException("DES key too long - should be 8 bytes");
- }
-
- workingKey = generateWorkingKey(encrypting,
- ((KeyParameter)params).getKey());
-
- return;
- }
-
- throw new IllegalArgumentException("invalid parameter passed to DES init - " + params.getClass().getName());
- }
-
- public String getAlgorithmName()
- {
- return "DES";
- }
-
- public int getBlockSize()
- {
- return BLOCK_SIZE;
- }
-
- public int processBlock(
- byte[] in,
- int inOff,
- byte[] out,
- int outOff)
- {
- if (workingKey == null)
- {
- throw new IllegalStateException("DES engine not initialised");
- }
-
- if ((inOff + BLOCK_SIZE) > in.length)
- {
- throw new DataLengthException("input buffer too short");
- }
-
- if ((outOff + BLOCK_SIZE) > out.length)
- {
- throw new OutputLengthException("output buffer too short");
- }
-
- desFunc(workingKey, in, inOff, out, outOff);
-
- return BLOCK_SIZE;
- }
-
- public void reset()
- {
- }
-
- /**
- * what follows is mainly taken from "Applied Cryptography", by
- * Bruce Schneier, however it also bears great resemblance to Richard
- * Outerbridge's D3DES...
- */
-
-// private static final short[] Df_Key =
-// {
-// 0x01,0x23,0x45,0x67,0x89,0xab,0xcd,0xef,
-// 0xfe,0xdc,0xba,0x98,0x76,0x54,0x32,0x10,
-// 0x89,0xab,0xcd,0xef,0x01,0x23,0x45,0x67
-// };
-
- private static final short[] bytebit =
- {
- 0200, 0100, 040, 020, 010, 04, 02, 01
- };
-
- private static final int[] bigbyte =
- {
- 0x800000, 0x400000, 0x200000, 0x100000,
- 0x80000, 0x40000, 0x20000, 0x10000,
- 0x8000, 0x4000, 0x2000, 0x1000,
- 0x800, 0x400, 0x200, 0x100,
- 0x80, 0x40, 0x20, 0x10,
- 0x8, 0x4, 0x2, 0x1
- };
-
- /*
- * Use the key schedule specified in the Standard (ANSI X3.92-1981).
- */
-
- private static final byte[] pc1 =
- {
- 56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17,
- 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35,
- 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21,
- 13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3
- };
-
- private static final byte[] totrot =
- {
- 1, 2, 4, 6, 8, 10, 12, 14,
- 15, 17, 19, 21, 23, 25, 27, 28
- };
-
- private static final byte[] pc2 =
- {
- 13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9,
- 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1,
- 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47,
- 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31
- };
-
- private static final int[] SP1 = {
- 0x01010400, 0x00000000, 0x00010000, 0x01010404,
- 0x01010004, 0x00010404, 0x00000004, 0x00010000,
- 0x00000400, 0x01010400, 0x01010404, 0x00000400,
- 0x01000404, 0x01010004, 0x01000000, 0x00000004,
- 0x00000404, 0x01000400, 0x01000400, 0x00010400,
- 0x00010400, 0x01010000, 0x01010000, 0x01000404,
- 0x00010004, 0x01000004, 0x01000004, 0x00010004,
- 0x00000000, 0x00000404, 0x00010404, 0x01000000,
- 0x00010000, 0x01010404, 0x00000004, 0x01010000,
- 0x01010400, 0x01000000, 0x01000000, 0x00000400,
- 0x01010004, 0x00010000, 0x00010400, 0x01000004,
- 0x00000400, 0x00000004, 0x01000404, 0x00010404,
- 0x01010404, 0x00010004, 0x01010000, 0x01000404,
- 0x01000004, 0x00000404, 0x00010404, 0x01010400,
- 0x00000404, 0x01000400, 0x01000400, 0x00000000,
- 0x00010004, 0x00010400, 0x00000000, 0x01010004
- };
-
- private static final int[] SP2 = {
- 0x80108020, 0x80008000, 0x00008000, 0x00108020,
- 0x00100000, 0x00000020, 0x80100020, 0x80008020,
- 0x80000020, 0x80108020, 0x80108000, 0x80000000,
- 0x80008000, 0x00100000, 0x00000020, 0x80100020,
- 0x00108000, 0x00100020, 0x80008020, 0x00000000,
- 0x80000000, 0x00008000, 0x00108020, 0x80100000,
- 0x00100020, 0x80000020, 0x00000000, 0x00108000,
- 0x00008020, 0x80108000, 0x80100000, 0x00008020,
- 0x00000000, 0x00108020, 0x80100020, 0x00100000,
- 0x80008020, 0x80100000, 0x80108000, 0x00008000,
- 0x80100000, 0x80008000, 0x00000020, 0x80108020,
- 0x00108020, 0x00000020, 0x00008000, 0x80000000,
- 0x00008020, 0x80108000, 0x00100000, 0x80000020,
- 0x00100020, 0x80008020, 0x80000020, 0x00100020,
- 0x00108000, 0x00000000, 0x80008000, 0x00008020,
- 0x80000000, 0x80100020, 0x80108020, 0x00108000
- };
-
- private static final int[] SP3 = {
- 0x00000208, 0x08020200, 0x00000000, 0x08020008,
- 0x08000200, 0x00000000, 0x00020208, 0x08000200,
- 0x00020008, 0x08000008, 0x08000008, 0x00020000,
- 0x08020208, 0x00020008, 0x08020000, 0x00000208,
- 0x08000000, 0x00000008, 0x08020200, 0x00000200,
- 0x00020200, 0x08020000, 0x08020008, 0x00020208,
- 0x08000208, 0x00020200, 0x00020000, 0x08000208,
- 0x00000008, 0x08020208, 0x00000200, 0x08000000,
- 0x08020200, 0x08000000, 0x00020008, 0x00000208,
- 0x00020000, 0x08020200, 0x08000200, 0x00000000,
- 0x00000200, 0x00020008, 0x08020208, 0x08000200,
- 0x08000008, 0x00000200, 0x00000000, 0x08020008,
- 0x08000208, 0x00020000, 0x08000000, 0x08020208,
- 0x00000008, 0x00020208, 0x00020200, 0x08000008,
- 0x08020000, 0x08000208, 0x00000208, 0x08020000,
- 0x00020208, 0x00000008, 0x08020008, 0x00020200
- };
-
- private static final int[] SP4 = {
- 0x00802001, 0x00002081, 0x00002081, 0x00000080,
- 0x00802080, 0x00800081, 0x00800001, 0x00002001,
- 0x00000000, 0x00802000, 0x00802000, 0x00802081,
- 0x00000081, 0x00000000, 0x00800080, 0x00800001,
- 0x00000001, 0x00002000, 0x00800000, 0x00802001,
- 0x00000080, 0x00800000, 0x00002001, 0x00002080,
- 0x00800081, 0x00000001, 0x00002080, 0x00800080,
- 0x00002000, 0x00802080, 0x00802081, 0x00000081,
- 0x00800080, 0x00800001, 0x00802000, 0x00802081,
- 0x00000081, 0x00000000, 0x00000000, 0x00802000,
- 0x00002080, 0x00800080, 0x00800081, 0x00000001,
- 0x00802001, 0x00002081, 0x00002081, 0x00000080,
- 0x00802081, 0x00000081, 0x00000001, 0x00002000,
- 0x00800001, 0x00002001, 0x00802080, 0x00800081,
- 0x00002001, 0x00002080, 0x00800000, 0x00802001,
- 0x00000080, 0x00800000, 0x00002000, 0x00802080
- };
-
- private static final int[] SP5 = {
- 0x00000100, 0x02080100, 0x02080000, 0x42000100,
- 0x00080000, 0x00000100, 0x40000000, 0x02080000,
- 0x40080100, 0x00080000, 0x02000100, 0x40080100,
- 0x42000100, 0x42080000, 0x00080100, 0x40000000,
- 0x02000000, 0x40080000, 0x40080000, 0x00000000,
- 0x40000100, 0x42080100, 0x42080100, 0x02000100,
- 0x42080000, 0x40000100, 0x00000000, 0x42000000,
- 0x02080100, 0x02000000, 0x42000000, 0x00080100,
- 0x00080000, 0x42000100, 0x00000100, 0x02000000,
- 0x40000000, 0x02080000, 0x42000100, 0x40080100,
- 0x02000100, 0x40000000, 0x42080000, 0x02080100,
- 0x40080100, 0x00000100, 0x02000000, 0x42080000,
- 0x42080100, 0x00080100, 0x42000000, 0x42080100,
- 0x02080000, 0x00000000, 0x40080000, 0x42000000,
- 0x00080100, 0x02000100, 0x40000100, 0x00080000,
- 0x00000000, 0x40080000, 0x02080100, 0x40000100
- };
-
- private static final int[] SP6 = {
- 0x20000010, 0x20400000, 0x00004000, 0x20404010,
- 0x20400000, 0x00000010, 0x20404010, 0x00400000,
- 0x20004000, 0x00404010, 0x00400000, 0x20000010,
- 0x00400010, 0x20004000, 0x20000000, 0x00004010,
- 0x00000000, 0x00400010, 0x20004010, 0x00004000,
- 0x00404000, 0x20004010, 0x00000010, 0x20400010,
- 0x20400010, 0x00000000, 0x00404010, 0x20404000,
- 0x00004010, 0x00404000, 0x20404000, 0x20000000,
- 0x20004000, 0x00000010, 0x20400010, 0x00404000,
- 0x20404010, 0x00400000, 0x00004010, 0x20000010,
- 0x00400000, 0x20004000, 0x20000000, 0x00004010,
- 0x20000010, 0x20404010, 0x00404000, 0x20400000,
- 0x00404010, 0x20404000, 0x00000000, 0x20400010,
- 0x00000010, 0x00004000, 0x20400000, 0x00404010,
- 0x00004000, 0x00400010, 0x20004010, 0x00000000,
- 0x20404000, 0x20000000, 0x00400010, 0x20004010
- };
-
- private static final int[] SP7 = {
- 0x00200000, 0x04200002, 0x04000802, 0x00000000,
- 0x00000800, 0x04000802, 0x00200802, 0x04200800,
- 0x04200802, 0x00200000, 0x00000000, 0x04000002,
- 0x00000002, 0x04000000, 0x04200002, 0x00000802,
- 0x04000800, 0x00200802, 0x00200002, 0x04000800,
- 0x04000002, 0x04200000, 0x04200800, 0x00200002,
- 0x04200000, 0x00000800, 0x00000802, 0x04200802,
- 0x00200800, 0x00000002, 0x04000000, 0x00200800,
- 0x04000000, 0x00200800, 0x00200000, 0x04000802,
- 0x04000802, 0x04200002, 0x04200002, 0x00000002,
- 0x00200002, 0x04000000, 0x04000800, 0x00200000,
- 0x04200800, 0x00000802, 0x00200802, 0x04200800,
- 0x00000802, 0x04000002, 0x04200802, 0x04200000,
- 0x00200800, 0x00000000, 0x00000002, 0x04200802,
- 0x00000000, 0x00200802, 0x04200000, 0x00000800,
- 0x04000002, 0x04000800, 0x00000800, 0x00200002
- };
-
- private static final int[] SP8 = {
- 0x10001040, 0x00001000, 0x00040000, 0x10041040,
- 0x10000000, 0x10001040, 0x00000040, 0x10000000,
- 0x00040040, 0x10040000, 0x10041040, 0x00041000,
- 0x10041000, 0x00041040, 0x00001000, 0x00000040,
- 0x10040000, 0x10000040, 0x10001000, 0x00001040,
- 0x00041000, 0x00040040, 0x10040040, 0x10041000,
- 0x00001040, 0x00000000, 0x00000000, 0x10040040,
- 0x10000040, 0x10001000, 0x00041040, 0x00040000,
- 0x00041040, 0x00040000, 0x10041000, 0x00001000,
- 0x00000040, 0x10040040, 0x00001000, 0x00041040,
- 0x10001000, 0x00000040, 0x10000040, 0x10040000,
- 0x10040040, 0x10000000, 0x00040000, 0x10001040,
- 0x00000000, 0x10041040, 0x00040040, 0x10000040,
- 0x10040000, 0x10001000, 0x10001040, 0x00000000,
- 0x10041040, 0x00041000, 0x00041000, 0x00001040,
- 0x00001040, 0x00040040, 0x10000000, 0x10041000
- };
-
- /**
- * generate an integer based working key based on our secret key
- * and what we processing we are planning to do.
- *
- * Acknowledgements for this routine go to James Gillogly & Phil Karn.
- * (whoever, and wherever they are!).
- */
- protected int[] generateWorkingKey(
- boolean encrypting,
- byte[] key)
- {
- int[] newKey = new int[32];
- boolean[] pc1m = new boolean[56],
- pcr = new boolean[56];
-
- for (int j = 0; j < 56; j++)
- {
- int l = pc1[j];
-
- pc1m[j] = ((key[l >>> 3] & bytebit[l & 07]) != 0);
- }
-
- for (int i = 0; i < 16; i++)
- {
- int l, m, n;
-
- if (encrypting)
- {
- m = i << 1;
- }
- else
- {
- m = (15 - i) << 1;
- }
-
- n = m + 1;
- newKey[m] = newKey[n] = 0;
-
- for (int j = 0; j < 28; j++)
- {
- l = j + totrot[i];
- if (l < 28)
- {
- pcr[j] = pc1m[l];
- }
- else
- {
- pcr[j] = pc1m[l - 28];
- }
- }
-
- for (int j = 28; j < 56; j++)
- {
- l = j + totrot[i];
- if (l < 56)
- {
- pcr[j] = pc1m[l];
- }
- else
- {
- pcr[j] = pc1m[l - 28];
- }
- }
-
- for (int j = 0; j < 24; j++)
- {
- if (pcr[pc2[j]])
- {
- newKey[m] |= bigbyte[j];
- }
-
- if (pcr[pc2[j + 24]])
- {
- newKey[n] |= bigbyte[j];
- }
- }
- }
-
- //
- // store the processed key
- //
- for (int i = 0; i != 32; i += 2)
- {
- int i1, i2;
-
- i1 = newKey[i];
- i2 = newKey[i + 1];
-
- newKey[i] = ((i1 & 0x00fc0000) << 6) | ((i1 & 0x00000fc0) << 10)
- | ((i2 & 0x00fc0000) >>> 10) | ((i2 & 0x00000fc0) >>> 6);
-
- newKey[i + 1] = ((i1 & 0x0003f000) << 12) | ((i1 & 0x0000003f) << 16)
- | ((i2 & 0x0003f000) >>> 4) | (i2 & 0x0000003f);
- }
-
- return newKey;
- }
-
- /**
- * the DES engine.
- */
- protected void desFunc(
- int[] wKey,
- byte[] in,
- int inOff,
- byte[] out,
- int outOff)
- {
- int work, right, left;
-
- left = (in[inOff + 0] & 0xff) << 24;
- left |= (in[inOff + 1] & 0xff) << 16;
- left |= (in[inOff + 2] & 0xff) << 8;
- left |= (in[inOff + 3] & 0xff);
-
- right = (in[inOff + 4] & 0xff) << 24;
- right |= (in[inOff + 5] & 0xff) << 16;
- right |= (in[inOff + 6] & 0xff) << 8;
- right |= (in[inOff + 7] & 0xff);
-
- work = ((left >>> 4) ^ right) & 0x0f0f0f0f;
- right ^= work;
- left ^= (work << 4);
- work = ((left >>> 16) ^ right) & 0x0000ffff;
- right ^= work;
- left ^= (work << 16);
- work = ((right >>> 2) ^ left) & 0x33333333;
- left ^= work;
- right ^= (work << 2);
- work = ((right >>> 8) ^ left) & 0x00ff00ff;
- left ^= work;
- right ^= (work << 8);
- right = ((right << 1) | ((right >>> 31) & 1)) & 0xffffffff;
- work = (left ^ right) & 0xaaaaaaaa;
- left ^= work;
- right ^= work;
- left = ((left << 1) | ((left >>> 31) & 1)) & 0xffffffff;
-
- for (int round = 0; round < 8; round++)
- {
- int fval;
-
- work = (right << 28) | (right >>> 4);
- work ^= wKey[round * 4 + 0];
- fval = SP7[ work & 0x3f];
- fval |= SP5[(work >>> 8) & 0x3f];
- fval |= SP3[(work >>> 16) & 0x3f];
- fval |= SP1[(work >>> 24) & 0x3f];
- work = right ^ wKey[round * 4 + 1];
- fval |= SP8[ work & 0x3f];
- fval |= SP6[(work >>> 8) & 0x3f];
- fval |= SP4[(work >>> 16) & 0x3f];
- fval |= SP2[(work >>> 24) & 0x3f];
- left ^= fval;
- work = (left << 28) | (left >>> 4);
- work ^= wKey[round * 4 + 2];
- fval = SP7[ work & 0x3f];
- fval |= SP5[(work >>> 8) & 0x3f];
- fval |= SP3[(work >>> 16) & 0x3f];
- fval |= SP1[(work >>> 24) & 0x3f];
- work = left ^ wKey[round * 4 + 3];
- fval |= SP8[ work & 0x3f];
- fval |= SP6[(work >>> 8) & 0x3f];
- fval |= SP4[(work >>> 16) & 0x3f];
- fval |= SP2[(work >>> 24) & 0x3f];
- right ^= fval;
- }
-
- right = (right << 31) | (right >>> 1);
- work = (left ^ right) & 0xaaaaaaaa;
- left ^= work;
- right ^= work;
- left = (left << 31) | (left >>> 1);
- work = ((left >>> 8) ^ right) & 0x00ff00ff;
- right ^= work;
- left ^= (work << 8);
- work = ((left >>> 2) ^ right) & 0x33333333;
- right ^= work;
- left ^= (work << 2);
- work = ((right >>> 16) ^ left) & 0x0000ffff;
- left ^= work;
- right ^= (work << 16);
- work = ((right >>> 4) ^ left) & 0x0f0f0f0f;
- left ^= work;
- right ^= (work << 4);
-
- out[outOff + 0] = (byte)((right >>> 24) & 0xff);
- out[outOff + 1] = (byte)((right >>> 16) & 0xff);
- out[outOff + 2] = (byte)((right >>> 8) & 0xff);
- out[outOff + 3] = (byte)(right & 0xff);
- out[outOff + 4] = (byte)((left >>> 24) & 0xff);
- out[outOff + 5] = (byte)((left >>> 16) & 0xff);
- out[outOff + 6] = (byte)((left >>> 8) & 0xff);
- out[outOff + 7] = (byte)(left & 0xff);
- }
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-10 08:01:18 +0000