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

Introduction

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

Prototype

public void init(boolean encrypting, CipherParameters params) throws IllegalArgumentException 

Source Link

Document

Initialise the cipher and, possibly, the initialisation vector (IV).

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);
        for (int ax = 0; ax < cx; ax++)
            aes.processBlock(blo[ax], 0, blo[ax], 0);
    }/*  w  w w . j  a va 2s  .co m*/

    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);
        for (int ax = 0; ax < cx; ax++)
            aes.processBlock(blo[ax], 0, blo[ax], 0);
    }/*from w  w  w .j a  v a2 s. c  o  m*/

    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);

    int cx = blo.length;
    for (int ax = 0; ax < cx; ax++)
        aes.processBlock(blo[ax], 0, blo[ax], 0);
    data = Stdio.MulBlock(blo, 16);//from w  ww.j  ava 2 s .co m
    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);

    int cx = blo.length;
    for (int ax = 0; ax < cx; ax++)
        aes.processBlock(blo[ax], 0, blo[ax], 0);
    data = Stdio.MulBlock(blo, 16);//from  w  w w  . ja  v  a 2  s  . c o m
    blo = null;
    return data;
}

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