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发表于 2016-5-3 23:08:18
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加密解密没学会,提供点资料吧
- public class Aes_Encryption
- {
- static final int KEY_NREADY = 0;
- static final int KEY_READY = 1;
- static final int AES_OK = 0;
- static final int AES_ERROR = 1;
- static final int AES_BLOCK_SIZE = 4;
- static final int AES_KEY_SIZE = 4;
- static final int AES_EXPKEY_SIZE = 44;
- static int m_keyState = 0;
- static String m_keyOfKey2 = "I am key, wawawa";
- static int[] m_expKey = new int[44];
- static final int[] Sbox = { 99, 124, 119, 123, 242, 107, 111, 197, 48, 1, 103, 43, 254, 215, 171, 118, 202, 130, 201, 125, 250, 89, 71, 240, 173, 212, 162, 175, 156, 164, 114, 192, 183, 253, 147, 38, 54, 63, 247, 204, 52, 165, 229, 241, 113, 216, 49, 21, 4, 199, 35, 195, 24, 150, 5, 154, 7, 18, 128, 226, 235, 39, 178, 117, 9, 131, 44, 26, 27, 110, 90, 160, 82, 59, 214, 179, 41, 227, 47, 132, 83, 209, 0, 237, 32, 252, 177, 91, 106, 203, 190, 57, 74, 76, 88, 207, 208, 239, 170, 251, 67, 77, 51, 133, 69, 249, 2, 127, 80, 60, 159, 168, 81, 163, 64, 143, 146, 157, 56, 245, 188, 182, 218, 33, 16, 255, 243, 210, 205, 12, 19, 236, 95, 151, 68, 23, 196, 167, 126, 61, 100, 93, 25, 115, 96, 129, 79, 220, 34, 42, 144, 136, 70, 238, 184, 20, 222, 94, 11, 219, 224, 50, 58, 10, 73, 6, 36, 92, 194, 211, 172, 98, 145, 149, 228, 121, 231, 200, 55, 109, 141, 213, 78, 169, 108, 86, 244, 234, 101, 122, 174, 8, 186, 120, 37, 46, 28, 166, 180, 198, 232, 221, 116, 31, 75, 189, 139, 138, 112, 62, 181, 102, 72, 3, 246, 14, 97, 53, 87, 185, 134, 193, 29, 158, 225, 248, 152, 17, 105, 217, 142, 148, 155, 30, 135, 233, 206, 85, 40, 223, 140, 161, 137, 13, 191, 230, 66, 104, 65, 153, 45, 15, 176, 84, 187, 22 };
- static final int[] InvSbox = { 82, 9, 106, 213, 48, 54, 165, 56, 191, 64, 163, 158, 129, 243, 215, 251, 124, 227, 57, 130, 155, 47, 255, 135, 52, 142, 67, 68, 196, 222, 233, 203, 84, 123, 148, 50, 166, 194, 35, 61, 238, 76, 149, 11, 66, 250, 195, 78, 8, 46, 161, 102, 40, 217, 36, 178, 118, 91, 162, 73, 109, 139, 209, 37, 114, 248, 246, 100, 134, 104, 152, 22, 212, 164, 92, 204, 93, 101, 182, 146, 108, 112, 72, 80, 253, 237, 185, 218, 94, 21, 70, 87, 167, 141, 157, 132, 144, 216, 171, 0, 140, 188, 211, 10, 247, 228, 88, 5, 184, 179, 69, 6, 208, 44, 30, 143, 202, 63, 15, 2, 193, 175, 189, 3, 1, 19, 138, 107, 58, 145, 17, 65, 79, 103, 220, 234, 151, 242, 207, 206, 240, 180, 230, 115, 150, 172, 116, 34, 231, 173, 53, 133, 226, 249, 55, 232, 28, 117, 223, 110, 71, 241, 26, 113, 29, 41, 197, 137, 111, 183, 98, 14, 170, 24, 190, 27, 252, 86, 62, 75, 198, 210, 121, 32, 154, 219, 192, 254, 120, 205, 90, 244, 31, 221, 168, 51, 136, 7, 199, 49, 177, 18, 16, 89, 39, 128, 236, 95, 96, 81, 127, 169, 25, 181, 74, 13, 45, 229, 122, 159, 147, 201, 156, 239, 160, 224, 59, 77, 174, 42, 245, 176, 200, 235, 187, 60, 131, 83, 153, 97, 23, 43, 4, 126, 186, 119, 214, 38, 225, 105, 20, 99, 85, 33, 12, 125 };
- static final long[] rcon = { 16777216L, 33554432L, 67108864L, 134217728L, 268435456L, 536870912L, 1073741824L, -2147483648L, 452984832L, 905969664L };
-
- public static void StrKeyToByteChar(String paramString, byte[] paramArrayOfByte)
- {
- char[] arrayOfChar = paramString.toCharArray();
- for (int i = 0; i < 16; i++) {
- paramArrayOfByte[i] = ((byte)((byte)arrayOfChar[i] & 0xFF));
- }
- }
-
- static int STlinkPCaes_Encry_Api(byte[] paramArrayOfByte1, byte[] paramArrayOfByte2, byte[] paramArrayOfByte3, int paramInt)
- {
- int m = 16;
- byte[] arrayOfByte1 = new byte[m];
-
- int i = paramInt;
- int j = 0;
-
- AES_keyschedule_enc(paramArrayOfByte3, m_expKey);
- m_keyState = 1;
- while (i > 0)
- {
- Object localObject = null;
- int n;
- if (i >= m)
- {
- localObject = Arrays.copyOfRange(paramArrayOfByte1, j, j + m);
- n = m;
- }
- else
- {
- n = i;
- if (i > 0)
- {
- byte[] arrayOfByte2 = new byte[m];
- for (k = 0; k < i; k++) {
- arrayOfByte2[k] = paramArrayOfByte1[(j + k)];
- }
- for (k = i; k < m; k++) {
- arrayOfByte2[k] = ((byte)(int)Double.doubleToLongBits(Math.random()));
- }
- localObject = arrayOfByte2;
- }
- }
- if (i > 0) {
- AES_encrypt((byte[])localObject, arrayOfByte1, m_expKey);
- }
- for (int k = 0; k < m; k++) {
- paramArrayOfByte2[(j + k)] = arrayOfByte1[k];
- }
- i -= n;
- j += n;
- }
- return 0;
- }
-
- static int STlinkPCaes_Decry_Api(byte[] paramArrayOfByte1, byte[] paramArrayOfByte2, byte[] paramArrayOfByte3, int paramInt)
- {
- int m = 16;
- byte[] arrayOfByte1 = new byte[m];
-
- int i = paramInt;
- int j = 0;
-
- AES_keyschedule_enc(paramArrayOfByte3, m_expKey);
- m_keyState = 1;
- while (i > 0)
- {
- Object localObject = null;
- int n;
- if (i >= m)
- {
- localObject = Arrays.copyOfRange(paramArrayOfByte1, j, j + m);
- n = m;
- }
- else
- {
- n = i;
- if (i > 0)
- {
- byte[] arrayOfByte2 = new byte[m];
- for (k = 0; k < i; k++) {
- arrayOfByte2[k] = paramArrayOfByte1[(j + k)];
- }
- for (k = i; k < m; k++) {
- arrayOfByte2[k] = ((byte)(int)Double.doubleToLongBits(Math.random()));
- }
- localObject = arrayOfByte2;
- }
- }
- if (i > 0) {
- AES_decrypt((byte[])localObject, arrayOfByte1, m_expKey);
- }
- for (int k = 0; k < n; k++) {
- paramArrayOfByte2[(j + k)] = arrayOfByte1[k];
- }
- i -= n;
- j += n;
- }
- return 0;
- }
-
- static int byte0(int paramInt)
- {
- return paramInt >> 24 & 0xFF;
- }
-
- static int byte1(int paramInt)
- {
- return paramInt >> 16 & 0xFF;
- }
-
- static int byte2(int paramInt)
- {
- return paramInt >> 8 & 0xFF;
- }
-
- static int byte3(int paramInt)
- {
- return paramInt & 0xFF;
- }
-
- static int WORD8_TO_WORD32(int paramInt1, int paramInt2, int paramInt3, int paramInt4)
- {
- return (paramInt1 << 24 & 0xFF000000) + (paramInt2 << 16 & 0xFF0000) + (paramInt3 << 8 & 0xFF00) + (paramInt4 & 0xFF);
- }
-
- static int Xtime(int paramInt)
- {
- long l1 = 4294967295L;
- long l2 = paramInt & l1;
- long l3 = (l2 & 0x7F7F7F7F) << 1 ^ ((l2 & 0xFFFFFFFF80808080) >> 7) * 27L;
- return (int)(l3 & l1);
- }
-
- static int upr(int paramInt1, int paramInt2)
- {
- long l1 = 4294967295L;
- long l2 = paramInt1 & l1;
- long l3 = l2 >> 8 * paramInt2 | l2 << 32 - 8 * paramInt2;
- return (int)(l3 & l1);
- }
-
- static int fwd_mcol(int paramInt)
- {
- int i = Xtime(paramInt) ^ upr(paramInt ^ Xtime(paramInt), 3) ^ upr(paramInt, 2) ^ upr(paramInt, 1);
- return i;
- }
-
- static int inv_mcol(int paramInt)
- {
- int i = Xtime(paramInt);
- int j = Xtime(i);
- int k = Xtime(j);
- paramInt ^= k;
- return i ^= j ^ k ^ upr(i ^ paramInt, 3) ^ upr(j ^ paramInt, 2) ^ upr(paramInt, 1);
- }
-
- static void AES_keyschedule_enc(byte[] paramArrayOfByte, int[] paramArrayOfInt)
- {
- int i = 0;
- int[] arrayOfInt = new int[4];
- for (i = 0; i < 4; i++)
- {
- arrayOfInt[i] = ByteBuffer.wrap(paramArrayOfByte).order(ByteOrder.LITTLE_ENDIAN).getInt(4 * i);
- paramArrayOfInt[i] = arrayOfInt[i];
- }
- for (i = 0; i < 10;)
- {
- int j = byte1(arrayOfInt[3]);
- int k = Sbox[j];
- int m = byte2(arrayOfInt[3]);
- int n = Sbox[m];
- int i1 = byte3(arrayOfInt[3]);
- int i2 = Sbox[i1];
- int i3 = byte0(arrayOfInt[3]);
- int i4 = Sbox[i3]; int
- tmp118_117 = 0; int[] tmp118_116 = arrayOfInt;tmp118_116[tmp118_117] = ((int)(tmp118_116[tmp118_117] ^ WORD8_TO_WORD32(Sbox[byte1(arrayOfInt[3])], Sbox[byte2(arrayOfInt[3])], Sbox[byte3(arrayOfInt[3])], Sbox[byte0(arrayOfInt[3])]) ^ rcon[(i++)]));
-
- arrayOfInt[1] ^= arrayOfInt[0];
- arrayOfInt[2] ^= arrayOfInt[1];
- arrayOfInt[3] ^= arrayOfInt[2];
-
- System.arraycopy(arrayOfInt, 0, paramArrayOfInt, 4 * i, 4);
- }
- }
-
- static void AES_keyschedule_dec(byte[] paramArrayOfByte, int[] paramArrayOfInt)
- {
- AES_keyschedule_enc(paramArrayOfByte, paramArrayOfInt);
- }
-
- static void AES_decrypt(byte[] paramArrayOfByte1, byte[] paramArrayOfByte2, int[] paramArrayOfInt)
- {
- int[] arrayOfInt = new int[4];
- int n = 10;
- int i1 = 40;
- for (int i2 = 0; i2 < 4; i2++)
- {
- int i3 = ByteBuffer.wrap(paramArrayOfByte1).order(ByteOrder.LITTLE_ENDIAN).getInt(4 * i2);
- arrayOfInt[i2] = (i3 ^ paramArrayOfInt[(i1 + i2)]);
- }
- i1 -= 8;
- for (;;)
- {
- i = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[0])], InvSbox[byte1(arrayOfInt[3])], InvSbox[byte2(arrayOfInt[2])], InvSbox[byte3(arrayOfInt[1])]) ^ paramArrayOfInt[(i1 + 4)];
-
- j = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[1])], InvSbox[byte1(arrayOfInt[0])], InvSbox[byte2(arrayOfInt[3])], InvSbox[byte3(arrayOfInt[2])]) ^ paramArrayOfInt[(i1 + 5)];
-
- k = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[2])], InvSbox[byte1(arrayOfInt[1])], InvSbox[byte2(arrayOfInt[0])], InvSbox[byte3(arrayOfInt[3])]) ^ paramArrayOfInt[(i1 + 6)];
-
- m = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[3])], InvSbox[byte1(arrayOfInt[2])], InvSbox[byte2(arrayOfInt[1])], InvSbox[byte3(arrayOfInt[0])]) ^ paramArrayOfInt[(i1 + 7)];
-
- arrayOfInt[0] = inv_mcol(i);
- arrayOfInt[1] = inv_mcol(j);
- arrayOfInt[2] = inv_mcol(k);
- arrayOfInt[3] = inv_mcol(m);
-
- i1 -= 4;
-
- n--;
- if (n == 1) {
- break;
- }
- }
- int i = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[0])], InvSbox[byte1(arrayOfInt[3])], InvSbox[byte2(arrayOfInt[2])], InvSbox[byte3(arrayOfInt[1])]) ^ paramArrayOfInt[(i1 + 4)];
-
- int j = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[1])], InvSbox[byte1(arrayOfInt[0])], InvSbox[byte2(arrayOfInt[3])], InvSbox[byte3(arrayOfInt[2])]) ^ paramArrayOfInt[(i1 + 5)];
-
- int k = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[2])], InvSbox[byte1(arrayOfInt[1])], InvSbox[byte2(arrayOfInt[0])], InvSbox[byte3(arrayOfInt[3])]) ^ paramArrayOfInt[(i1 + 6)];
-
- int m = WORD8_TO_WORD32(InvSbox[byte0(arrayOfInt[3])], InvSbox[byte1(arrayOfInt[2])], InvSbox[byte2(arrayOfInt[1])], InvSbox[byte3(arrayOfInt[0])]) ^ paramArrayOfInt[(i1 + 7)];
-
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(i);
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(4, j);
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(8, k);
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(12, m);
- }
-
- static void AES_encrypt(byte[] paramArrayOfByte1, byte[] paramArrayOfByte2, int[] paramArrayOfInt)
- {
- int[] arrayOfInt = new int[4];
- int n = 10;
- int i1 = 0;
- for (int i2 = 0; i2 < 4; i2++)
- {
- int i3 = ByteBuffer.wrap(paramArrayOfByte1).order(ByteOrder.LITTLE_ENDIAN).getInt(4 * i2);
- arrayOfInt[i2] = (i3 ^ paramArrayOfInt[(i1 + i2)]);
- }
- i1 += 4;
- for (;;)
- {
- i = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[0])], Sbox[byte1(arrayOfInt[1])], Sbox[byte2(arrayOfInt[2])], Sbox[byte3(arrayOfInt[3])]);
-
- j = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[1])], Sbox[byte1(arrayOfInt[2])], Sbox[byte2(arrayOfInt[3])], Sbox[byte3(arrayOfInt[0])]);
-
- k = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[2])], Sbox[byte1(arrayOfInt[3])], Sbox[byte2(arrayOfInt[0])], Sbox[byte3(arrayOfInt[1])]);
-
- m = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[3])], Sbox[byte1(arrayOfInt[0])], Sbox[byte2(arrayOfInt[1])], Sbox[byte3(arrayOfInt[2])]);
-
- arrayOfInt[0] = (fwd_mcol(i) ^ paramArrayOfInt[i1]);
- arrayOfInt[1] = (fwd_mcol(j) ^ paramArrayOfInt[(i1 + 1)]);
- arrayOfInt[2] = (fwd_mcol(k) ^ paramArrayOfInt[(i1 + 2)]);
- arrayOfInt[3] = (fwd_mcol(m) ^ paramArrayOfInt[(i1 + 3)]);
-
- i1 += 4;
- n--;
- if (n == 1) {
- break;
- }
- }
- int i = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[0])], Sbox[byte1(arrayOfInt[1])], Sbox[byte2(arrayOfInt[2])], Sbox[byte3(arrayOfInt[3])]);
-
- int j = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[1])], Sbox[byte1(arrayOfInt[2])], Sbox[byte2(arrayOfInt[3])], Sbox[byte3(arrayOfInt[0])]);
-
- int k = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[2])], Sbox[byte1(arrayOfInt[3])], Sbox[byte2(arrayOfInt[0])], Sbox[byte3(arrayOfInt[1])]);
-
- int m = WORD8_TO_WORD32(Sbox[byte0(arrayOfInt[3])], Sbox[byte1(arrayOfInt[0])], Sbox[byte2(arrayOfInt[1])], Sbox[byte3(arrayOfInt[2])]);
-
- i ^= paramArrayOfInt[(i1 + 0)];
- j ^= paramArrayOfInt[(i1 + 1)];
- k ^= paramArrayOfInt[(i1 + 2)];
- m ^= paramArrayOfInt[(i1 + 3)];
-
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(i);
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(4, j);
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(8, k);
- ByteBuffer.wrap(paramArrayOfByte2).order(ByteOrder.LITTLE_ENDIAN).putInt(12, m);
- }
- }
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