Example usage for org.bouncycastle.crypto.modes CBCBlockCipher processBlock

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.modes CBCBlockCipher processBlock.

Prototype

public int processBlock(byte[] in, int inOff, byte[] out, int outOff)
        throws DataLengthException, IllegalStateException 

Source Link

Document

Process one block of input from the array in and write it to the out array.

Usage

From source file:org.tramaci.onionmail.Stdio.java

License:Open Source License

public static byte[] AESEnc2m(byte[][] key, byte[][] iv, byte[] data) throws Exception {

    byte[][] blo = Stdio.DivBlock(data, 16, false);
    int cx = blo.length;
    int kc = key.length;
    for (int kx = 0; kx < kc; kx++) {
        CBCBlockCipher aes = new CBCBlockCipher(new AESEngine());
        CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key[kx]), iv[kx]);
        aes.init(true, ivAndKey);/*w  w  w  .  j  a v a 2s  .c o  m*/
        for (int ax = 0; ax < cx; ax++)
            aes.processBlock(blo[ax], 0, blo[ax], 0);
    }

    data = Stdio.MulBlock(blo, 16);
    blo = null;
    return data;
}

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From source file:org.tramaci.onionmail.Stdio.java

License:Open Source License

public static byte[] AESDec2m(byte[][] key, byte[][] iv, byte[] data) throws Exception {

    byte[][] blo = Stdio.DivBlock(data, 16, false);
    int cx = blo.length;
    int kc = key.length - 1;
    for (int kx = kc; kx > -1; kx--) {
        CBCBlockCipher aes = new CBCBlockCipher(new AESEngine());
        CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key[kx]), iv[kx]);
        aes.init(false, ivAndKey);/* ww w . j a  v a2s .  c o  m*/
        for (int ax = 0; ax < cx; ax++)
            aes.processBlock(blo[ax], 0, blo[ax], 0);
    }

    data = Stdio.MulBlock(blo, 16);
    blo = null;
    return data;
}

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From source file:org.tramaci.onionmail.Stdio.java

License:Open Source License

public static byte[] AESEnc2(byte[] key, byte[] iv, byte[] data) throws Exception {
    byte[][] blo = Stdio.DivBlock(data, 16, false);

    CBCBlockCipher aes = new CBCBlockCipher(new AESEngine());
    CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key), iv);
    aes.init(true, ivAndKey);/*w  w  w .  j  av  a  2s.c o m*/

    int cx = blo.length;
    for (int ax = 0; ax < cx; ax++)
        aes.processBlock(blo[ax], 0, blo[ax], 0);
    data = Stdio.MulBlock(blo, 16);
    blo = null;
    return data;
}

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From source file:org.tramaci.onionmail.Stdio.java

License:Open Source License

public static byte[] AESDec2(byte[] key, byte[] iv, byte[] data) throws Exception {
    byte[][] blo = Stdio.DivBlock(data, 16, false);

    CBCBlockCipher aes = new CBCBlockCipher(new AESEngine());
    CipherParameters ivAndKey = new ParametersWithIV(new KeyParameter(key), iv);
    aes.init(false, ivAndKey);/*from w ww . j  a v  a2s  . c  om*/

    int cx = blo.length;
    for (int ax = 0; ax < cx; ax++)
        aes.processBlock(blo[ax], 0, blo[ax], 0);
    data = Stdio.MulBlock(blo, 16);
    blo = null;
    return data;
}

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