diff options
Diffstat (limited to 'core/src/main/java/org/bouncycastle/crypto/engines/CamelliaLightEngine.java')
| -rw-r--r-- | core/src/main/java/org/bouncycastle/crypto/engines/CamelliaLightEngine.java | 592 |
1 files changed, 0 insertions, 592 deletions
diff --git a/core/src/main/java/org/bouncycastle/crypto/engines/CamelliaLightEngine.java b/core/src/main/java/org/bouncycastle/crypto/engines/CamelliaLightEngine.java deleted file mode 100644 index 2b1e71b2..00000000 --- a/core/src/main/java/org/bouncycastle/crypto/engines/CamelliaLightEngine.java +++ /dev/null @@ -1,592 +0,0 @@ -package org.bouncycastle.crypto.engines; - -import org.bouncycastle.crypto.BlockCipher; -import org.bouncycastle.crypto.CipherParameters; -import org.bouncycastle.crypto.DataLengthException; -import org.bouncycastle.crypto.OutputLengthException; -import org.bouncycastle.crypto.params.KeyParameter; - -/** - * Camellia - based on RFC 3713, smaller implementation, about half the size of CamelliaEngine. - */ - -public class CamelliaLightEngine - implements BlockCipher -{ - private static final int BLOCK_SIZE = 16; - private static final int MASK8 = 0xff; - private boolean initialized; - private boolean _keyis128; - - private int[] subkey = new int[24 * 4]; - private int[] kw = new int[4 * 2]; // for whitening - private int[] ke = new int[6 * 2]; // for FL and FL^(-1) - private int[] state = new int[4]; // for encryption and decryption - - private static final int SIGMA[] = { - 0xa09e667f, 0x3bcc908b, - 0xb67ae858, 0x4caa73b2, - 0xc6ef372f, 0xe94f82be, - 0x54ff53a5, 0xf1d36f1c, - 0x10e527fa, 0xde682d1d, - 0xb05688c2, 0xb3e6c1fd - }; - - /* - * - * S-box data - * - */ - private static final byte SBOX1[] = { - (byte)112, (byte)130, (byte)44, (byte)236, - (byte)179, (byte)39, (byte)192, (byte)229, - (byte)228, (byte)133, (byte)87, (byte)53, - (byte)234, (byte)12, (byte)174, (byte)65, - (byte)35, (byte)239, (byte)107, (byte)147, - (byte)69, (byte)25, (byte)165, (byte)33, - (byte)237, (byte)14, (byte)79, (byte)78, - (byte)29, (byte)101, (byte)146, (byte)189, - (byte)134, (byte)184, (byte)175, (byte)143, - (byte)124, (byte)235, (byte)31, (byte)206, - (byte)62, (byte)48, (byte)220, (byte)95, - (byte)94, (byte)197, (byte)11, (byte)26, - (byte)166, (byte)225, (byte)57, (byte)202, - (byte)213, (byte)71, (byte)93, (byte)61, - (byte)217, (byte)1, (byte)90, (byte)214, - (byte)81, (byte)86, (byte)108, (byte)77, - (byte)139, (byte)13, (byte)154, (byte)102, - (byte)251, (byte)204, (byte)176, (byte)45, - (byte)116, (byte)18, (byte)43, (byte)32, - (byte)240, (byte)177, (byte)132, (byte)153, - (byte)223, (byte)76, (byte)203, (byte)194, - (byte)52, (byte)126, (byte)118, (byte)5, - (byte)109, (byte)183, (byte)169, (byte)49, - (byte)209, (byte)23, (byte)4, (byte)215, - (byte)20, (byte)88, (byte)58, (byte)97, - (byte)222, (byte)27, (byte)17, (byte)28, - (byte)50, (byte)15, (byte)156, (byte)22, - (byte)83, (byte)24, (byte)242, (byte)34, - (byte)254, (byte)68, (byte)207, (byte)178, - (byte)195, (byte)181, (byte)122, (byte)145, - (byte)36, (byte)8, (byte)232, (byte)168, - (byte)96, (byte)252, (byte)105, (byte)80, - (byte)170, (byte)208, (byte)160, (byte)125, - (byte)161, (byte)137, (byte)98, (byte)151, - (byte)84, (byte)91, (byte)30, (byte)149, - (byte)224, (byte)255, (byte)100, (byte)210, - (byte)16, (byte)196, (byte)0, (byte)72, - (byte)163, (byte)247, (byte)117, (byte)219, - (byte)138, (byte)3, (byte)230, (byte)218, - (byte)9, (byte)63, (byte)221, (byte)148, - (byte)135, (byte)92, (byte)131, (byte)2, - (byte)205, (byte)74, (byte)144, (byte)51, - (byte)115, (byte)103, (byte)246, (byte)243, - (byte)157, (byte)127, (byte)191, (byte)226, - (byte)82, (byte)155, (byte)216, (byte)38, - (byte)200, (byte)55, (byte)198, (byte)59, - (byte)129, (byte)150, (byte)111, (byte)75, - (byte)19, (byte)190, (byte)99, (byte)46, - (byte)233, (byte)121, (byte)167, (byte)140, - (byte)159, (byte)110, (byte)188, (byte)142, - (byte)41, (byte)245, (byte)249, (byte)182, - (byte)47, (byte)253, (byte)180, (byte)89, - (byte)120, (byte)152, (byte)6, (byte)106, - (byte)231, (byte)70, (byte)113, (byte)186, - (byte)212, (byte)37, (byte)171, (byte)66, - (byte)136, (byte)162, (byte)141, (byte)250, - (byte)114, (byte)7, (byte)185, (byte)85, - (byte)248, (byte)238, (byte)172, (byte)10, - (byte)54, (byte)73, (byte)42, (byte)104, - (byte)60, (byte)56, (byte)241, (byte)164, - (byte)64, (byte)40, (byte)211, (byte)123, - (byte)187, (byte)201, (byte)67, (byte)193, - (byte)21, (byte)227, (byte)173, (byte)244, - (byte)119, (byte)199, (byte)128, (byte)158 - }; - - private static int rightRotate(int x, int s) - { - return (((x) >>> (s)) + ((x) << (32 - s))); - } - - private static int leftRotate(int x, int s) - { - return ((x) << (s)) + ((x) >>> (32 - s)); - } - - private static void roldq(int rot, int[] ki, int ioff, - int[] ko, int ooff) - { - ko[0 + ooff] = (ki[0 + ioff] << rot) | (ki[1 + ioff] >>> (32 - rot)); - ko[1 + ooff] = (ki[1 + ioff] << rot) | (ki[2 + ioff] >>> (32 - rot)); - ko[2 + ooff] = (ki[2 + ioff] << rot) | (ki[3 + ioff] >>> (32 - rot)); - ko[3 + ooff] = (ki[3 + ioff] << rot) | (ki[0 + ioff] >>> (32 - rot)); - ki[0 + ioff] = ko[0 + ooff]; - ki[1 + ioff] = ko[1 + ooff]; - ki[2 + ioff] = ko[2 + ooff]; - ki[3 + ioff] = ko[3 + ooff]; - } - - private static void decroldq(int rot, int[] ki, int ioff, - int[] ko, int ooff) - { - ko[2 + ooff] = (ki[0 + ioff] << rot) | (ki[1 + ioff] >>> (32 - rot)); - ko[3 + ooff] = (ki[1 + ioff] << rot) | (ki[2 + ioff] >>> (32 - rot)); - ko[0 + ooff] = (ki[2 + ioff] << rot) | (ki[3 + ioff] >>> (32 - rot)); - ko[1 + ooff] = (ki[3 + ioff] << rot) | (ki[0 + ioff] >>> (32 - rot)); - ki[0 + ioff] = ko[2 + ooff]; - ki[1 + ioff] = ko[3 + ooff]; - ki[2 + ioff] = ko[0 + ooff]; - ki[3 + ioff] = ko[1 + ooff]; - } - - private static void roldqo32(int rot, int[] ki, int ioff, - int[] ko, int ooff) - { - ko[0 + ooff] = (ki[1 + ioff] << (rot - 32)) | (ki[2 + ioff] >>> (64 - rot)); - ko[1 + ooff] = (ki[2 + ioff] << (rot - 32)) | (ki[3 + ioff] >>> (64 - rot)); - ko[2 + ooff] = (ki[3 + ioff] << (rot - 32)) | (ki[0 + ioff] >>> (64 - rot)); - ko[3 + ooff] = (ki[0 + ioff] << (rot - 32)) | (ki[1 + ioff] >>> (64 - rot)); - ki[0 + ioff] = ko[0 + ooff]; - ki[1 + ioff] = ko[1 + ooff]; - ki[2 + ioff] = ko[2 + ooff]; - ki[3 + ioff] = ko[3 + ooff]; - } - - private static void decroldqo32(int rot, int[] ki, int ioff, - int[] ko, int ooff) - { - ko[2 + ooff] = (ki[1 + ioff] << (rot - 32)) | (ki[2 + ioff] >>> (64 - rot)); - ko[3 + ooff] = (ki[2 + ioff] << (rot - 32)) | (ki[3 + ioff] >>> (64 - rot)); - ko[0 + ooff] = (ki[3 + ioff] << (rot - 32)) | (ki[0 + ioff] >>> (64 - rot)); - ko[1 + ooff] = (ki[0 + ioff] << (rot - 32)) | (ki[1 + ioff] >>> (64 - rot)); - ki[0 + ioff] = ko[2 + ooff]; - ki[1 + ioff] = ko[3 + ooff]; - ki[2 + ioff] = ko[0 + ooff]; - ki[3 + ioff] = ko[1 + ooff]; - } - - private int bytes2int(byte[] src, int offset) - { - int word = 0; - - for (int i = 0; i < 4; i++) - { - word = (word << 8) + (src[i + offset] & MASK8); - } - return word; - } - - private void int2bytes(int word, byte[] dst, int offset) - { - for (int i = 0; i < 4; i++) - { - dst[(3 - i) + offset] = (byte)word; - word >>>= 8; - } - } - - private byte lRot8(byte v, int rot) - { - return (byte)((v << rot) | ((v & 0xff) >>> (8 - rot))); - } - - private int sbox2(int x) - { - return (lRot8(SBOX1[x], 1) & MASK8); - } - - private int sbox3(int x) - { - return (lRot8(SBOX1[x], 7) & MASK8); - } - - private int sbox4(int x) - { - return (SBOX1[((int)lRot8((byte)x, 1) & MASK8)] & MASK8); - } - - private void camelliaF2(int[] s, int[] skey, int keyoff) - { - int t1, t2, u, v; - - t1 = s[0] ^ skey[0 + keyoff]; - u = sbox4((t1 & MASK8)); - u |= (sbox3(((t1 >>> 8) & MASK8)) << 8); - u |= (sbox2(((t1 >>> 16) & MASK8)) << 16); - u |= ((int)(SBOX1[((t1 >>> 24) & MASK8)] & MASK8) << 24); - - t2 = s[1] ^ skey[1 + keyoff]; - v = (int)SBOX1[(t2 & MASK8)] & MASK8; - v |= (sbox4(((t2 >>> 8) & MASK8)) << 8); - v |= (sbox3(((t2 >>> 16) & MASK8)) << 16); - v |= (sbox2(((t2 >>> 24) & MASK8)) << 24); - - v = leftRotate(v, 8); - u ^= v; - v = leftRotate(v, 8) ^ u; - u = rightRotate(u, 8) ^ v; - s[2] ^= leftRotate(v, 16) ^ u; - s[3] ^= leftRotate(u, 8); - - t1 = s[2] ^ skey[2 + keyoff]; - u = sbox4((t1 & MASK8)); - u |= sbox3(((t1 >>> 8) & MASK8)) << 8; - u |= sbox2(((t1 >>> 16) & MASK8)) << 16; - u |= ((int)SBOX1[((t1 >>> 24) & MASK8)] & MASK8) << 24; - - t2 = s[3] ^ skey[3 + keyoff]; - v = ((int)SBOX1[(t2 & MASK8)] & MASK8); - v |= sbox4(((t2 >>> 8) & MASK8)) << 8; - v |= sbox3(((t2 >>> 16) & MASK8)) << 16; - v |= sbox2(((t2 >>> 24) & MASK8)) << 24; - - v = leftRotate(v, 8); - u ^= v; - v = leftRotate(v, 8) ^ u; - u = rightRotate(u, 8) ^ v; - s[0] ^= leftRotate(v, 16) ^ u; - s[1] ^= leftRotate(u, 8); - } - - private void camelliaFLs(int[] s, int[] fkey, int keyoff) - { - - s[1] ^= leftRotate(s[0] & fkey[0 + keyoff], 1); - s[0] ^= fkey[1 + keyoff] | s[1]; - - s[2] ^= fkey[3 + keyoff] | s[3]; - s[3] ^= leftRotate(fkey[2 + keyoff] & s[2], 1); - } - - private void setKey(boolean forEncryption, byte[] key) - { - int[] k = new int[8]; - int[] ka = new int[4]; - int[] kb = new int[4]; - int[] t = new int[4]; - - switch (key.length) - { - case 16: - _keyis128 = true; - k[0] = bytes2int(key, 0); - k[1] = bytes2int(key, 4); - k[2] = bytes2int(key, 8); - k[3] = bytes2int(key, 12); - k[4] = k[5] = k[6] = k[7] = 0; - break; - case 24: - k[0] = bytes2int(key, 0); - k[1] = bytes2int(key, 4); - k[2] = bytes2int(key, 8); - k[3] = bytes2int(key, 12); - k[4] = bytes2int(key, 16); - k[5] = bytes2int(key, 20); - k[6] = ~k[4]; - k[7] = ~k[5]; - _keyis128 = false; - break; - case 32: - k[0] = bytes2int(key, 0); - k[1] = bytes2int(key, 4); - k[2] = bytes2int(key, 8); - k[3] = bytes2int(key, 12); - k[4] = bytes2int(key, 16); - k[5] = bytes2int(key, 20); - k[6] = bytes2int(key, 24); - k[7] = bytes2int(key, 28); - _keyis128 = false; - break; - default: - throw new - IllegalArgumentException("key sizes are only 16/24/32 bytes."); - } - - for (int i = 0; i < 4; i++) - { - ka[i] = k[i] ^ k[i + 4]; - } - /* compute KA */ - camelliaF2(ka, SIGMA, 0); - for (int i = 0; i < 4; i++) - { - ka[i] ^= k[i]; - } - camelliaF2(ka, SIGMA, 4); - - if (_keyis128) - { - if (forEncryption) - { - /* KL dependant keys */ - kw[0] = k[0]; - kw[1] = k[1]; - kw[2] = k[2]; - kw[3] = k[3]; - roldq(15, k, 0, subkey, 4); - roldq(30, k, 0, subkey, 12); - roldq(15, k, 0, t, 0); - subkey[18] = t[2]; - subkey[19] = t[3]; - roldq(17, k, 0, ke, 4); - roldq(17, k, 0, subkey, 24); - roldq(17, k, 0, subkey, 32); - /* KA dependant keys */ - subkey[0] = ka[0]; - subkey[1] = ka[1]; - subkey[2] = ka[2]; - subkey[3] = ka[3]; - roldq(15, ka, 0, subkey, 8); - roldq(15, ka, 0, ke, 0); - roldq(15, ka, 0, t, 0); - subkey[16] = t[0]; - subkey[17] = t[1]; - roldq(15, ka, 0, subkey, 20); - roldqo32(34, ka, 0, subkey, 28); - roldq(17, ka, 0, kw, 4); - - } - else - { // decryption - /* KL dependant keys */ - kw[4] = k[0]; - kw[5] = k[1]; - kw[6] = k[2]; - kw[7] = k[3]; - decroldq(15, k, 0, subkey, 28); - decroldq(30, k, 0, subkey, 20); - decroldq(15, k, 0, t, 0); - subkey[16] = t[0]; - subkey[17] = t[1]; - decroldq(17, k, 0, ke, 0); - decroldq(17, k, 0, subkey, 8); - decroldq(17, k, 0, subkey, 0); - /* KA dependant keys */ - subkey[34] = ka[0]; - subkey[35] = ka[1]; - subkey[32] = ka[2]; - subkey[33] = ka[3]; - decroldq(15, ka, 0, subkey, 24); - decroldq(15, ka, 0, ke, 4); - decroldq(15, ka, 0, t, 0); - subkey[18] = t[2]; - subkey[19] = t[3]; - decroldq(15, ka, 0, subkey, 12); - decroldqo32(34, ka, 0, subkey, 4); - roldq(17, ka, 0, kw, 0); - } - } - else - { // 192bit or 256bit - /* compute KB */ - for (int i = 0; i < 4; i++) - { - kb[i] = ka[i] ^ k[i + 4]; - } - camelliaF2(kb, SIGMA, 8); - - if (forEncryption) - { - /* KL dependant keys */ - kw[0] = k[0]; - kw[1] = k[1]; - kw[2] = k[2]; - kw[3] = k[3]; - roldqo32(45, k, 0, subkey, 16); - roldq(15, k, 0, ke, 4); - roldq(17, k, 0, subkey, 32); - roldqo32(34, k, 0, subkey, 44); - /* KR dependant keys */ - roldq(15, k, 4, subkey, 4); - roldq(15, k, 4, ke, 0); - roldq(30, k, 4, subkey, 24); - roldqo32(34, k, 4, subkey, 36); - /* KA dependant keys */ - roldq(15, ka, 0, subkey, 8); - roldq(30, ka, 0, subkey, 20); - /* 32bit rotation */ - ke[8] = ka[1]; - ke[9] = ka[2]; - ke[10] = ka[3]; - ke[11] = ka[0]; - roldqo32(49, ka, 0, subkey, 40); - - /* KB dependant keys */ - subkey[0] = kb[0]; - subkey[1] = kb[1]; - subkey[2] = kb[2]; - subkey[3] = kb[3]; - roldq(30, kb, 0, subkey, 12); - roldq(30, kb, 0, subkey, 28); - roldqo32(51, kb, 0, kw, 4); - - } - else - { // decryption - /* KL dependant keys */ - kw[4] = k[0]; - kw[5] = k[1]; - kw[6] = k[2]; - kw[7] = k[3]; - decroldqo32(45, k, 0, subkey, 28); - decroldq(15, k, 0, ke, 4); - decroldq(17, k, 0, subkey, 12); - decroldqo32(34, k, 0, subkey, 0); - /* KR dependant keys */ - decroldq(15, k, 4, subkey, 40); - decroldq(15, k, 4, ke, 8); - decroldq(30, k, 4, subkey, 20); - decroldqo32(34, k, 4, subkey, 8); - /* KA dependant keys */ - decroldq(15, ka, 0, subkey, 36); - decroldq(30, ka, 0, subkey, 24); - /* 32bit rotation */ - ke[2] = ka[1]; - ke[3] = ka[2]; - ke[0] = ka[3]; - ke[1] = ka[0]; - decroldqo32(49, ka, 0, subkey, 4); - - /* KB dependant keys */ - subkey[46] = kb[0]; - subkey[47] = kb[1]; - subkey[44] = kb[2]; - subkey[45] = kb[3]; - decroldq(30, kb, 0, subkey, 32); - decroldq(30, kb, 0, subkey, 16); - roldqo32(51, kb, 0, kw, 0); - } - } - } - - private int processBlock128(byte[] in, int inOff, - byte[] out, int outOff) - { - for (int i = 0; i < 4; i++) - { - state[i] = bytes2int(in, inOff + (i * 4)); - state[i] ^= kw[i]; - } - - camelliaF2(state, subkey, 0); - camelliaF2(state, subkey, 4); - camelliaF2(state, subkey, 8); - camelliaFLs(state, ke, 0); - camelliaF2(state, subkey, 12); - camelliaF2(state, subkey, 16); - camelliaF2(state, subkey, 20); - camelliaFLs(state, ke, 4); - camelliaF2(state, subkey, 24); - camelliaF2(state, subkey, 28); - camelliaF2(state, subkey, 32); - - state[2] ^= kw[4]; - state[3] ^= kw[5]; - state[0] ^= kw[6]; - state[1] ^= kw[7]; - - int2bytes(state[2], out, outOff); - int2bytes(state[3], out, outOff + 4); - int2bytes(state[0], out, outOff + 8); - int2bytes(state[1], out, outOff + 12); - - return BLOCK_SIZE; - } - - private int processBlock192or256(byte[] in, int inOff, - byte[] out, int outOff) - { - for (int i = 0; i < 4; i++) - { - state[i] = bytes2int(in, inOff + (i * 4)); - state[i] ^= kw[i]; - } - - camelliaF2(state, subkey, 0); - camelliaF2(state, subkey, 4); - camelliaF2(state, subkey, 8); - camelliaFLs(state, ke, 0); - camelliaF2(state, subkey, 12); - camelliaF2(state, subkey, 16); - camelliaF2(state, subkey, 20); - camelliaFLs(state, ke, 4); - camelliaF2(state, subkey, 24); - camelliaF2(state, subkey, 28); - camelliaF2(state, subkey, 32); - camelliaFLs(state, ke, 8); - camelliaF2(state, subkey, 36); - camelliaF2(state, subkey, 40); - camelliaF2(state, subkey, 44); - - state[2] ^= kw[4]; - state[3] ^= kw[5]; - state[0] ^= kw[6]; - state[1] ^= kw[7]; - - int2bytes(state[2], out, outOff); - int2bytes(state[3], out, outOff + 4); - int2bytes(state[0], out, outOff + 8); - int2bytes(state[1], out, outOff + 12); - return BLOCK_SIZE; - } - - public CamelliaLightEngine() - { - } - - public String getAlgorithmName() - { - return "Camellia"; - } - - public int getBlockSize() - { - return BLOCK_SIZE; - } - - public void init(boolean forEncryption, CipherParameters params) - { - if (!(params instanceof KeyParameter)) - { - throw new IllegalArgumentException("only simple KeyParameter expected."); - } - - setKey(forEncryption, ((KeyParameter)params).getKey()); - initialized = true; - } - - public int processBlock(byte[] in, int inOff, - byte[] out, int outOff) - throws IllegalStateException - { - - if (!initialized) - { - throw new IllegalStateException("Camellia is not initialized"); - } - - 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"); - } - - if (_keyis128) - { - return processBlock128(in, inOff, out, outOff); - } - else - { - return processBlock192or256(in, inOff, out, outOff); - } - } - - public void reset() - { - } -} |