Example usage for org.bouncycastle.crypto.digests MD5Digest update

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.digests MD5Digest update.

Prototype

public void update(byte[] in, int inOff, int len) 

Source Link

Usage

From source file:ch.rgw.io.FileTool.java

License:Open Source License

/**
 * TODO: Kommentar/*www  .  j a va 2 s .c  om*/
 * 
 * @param file
 * @return
 */
public static byte[] checksum(File file) {
    MD5Digest md5 = new MD5Digest();
    try {
        FileInputStream in = new FileInputStream(file);
        byte[] arr = new byte[65535];
        int num;
        do {
            num = in.read(arr);
            if (num == -1) {
                break;
            }
            md5.update(arr, 0, num);
        } while (num == arr.length);
        byte[] ret = new byte[16];
        md5.doFinal(ret, 0);
        return ret;
    } catch (Exception ex) {
        ExHandler.handle(ex);
        return null;
    }
}

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From source file:com.jrdp.core.encryption.RC4Session.java

License:Apache License

/**
 * Generates a Salted MAC for the current packet
 * @see <a href=http://msdn.microsoft.com/en-us/library/cc240789(v=PROT.10).aspx>
 * 5.3.6.1.1 Salted MAC Generation</a>
 *//*from w  ww .j a v  a  2s. c  om*/
@Override
public byte[] createMac(byte[] data) {
    SHA1Digest sha1 = new SHA1Digest();
    sha1.update(macKey, 0, macKey.length);
    sha1.update(Constants.pad36, 0, Constants.pad36.length);
    byte[] length = new byte[4];
    BitManip.setLittleEndian(length, 0, data.length);
    sha1.update(length, 0, length.length);
    sha1.update(data, 0, data.length);
    byte[] sha1Digest = new byte[Constants.SHA1_DIGEST_LENGTH];
    sha1.doFinal(sha1Digest, 0);

    MD5Digest md5 = new MD5Digest();
    md5.update(macKey, 0, macKey.length);
    md5.update(Constants.pad5c, 0, Constants.pad5c.length);
    md5.update(sha1Digest, 0, sha1Digest.length);
    byte[] md5Digest = new byte[Constants.MD5_DIGEST_LENGTH];
    md5.doFinal(md5Digest, 0);

    byte[] mac = new byte[8];
    System.arraycopy(md5Digest, 0, mac, 0, 8);

    return mac;
}

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From source file:com.jrdp.core.encryption.RC4Session.java

License:Apache License

private byte[] updateRc4Key(byte[] originalKey, byte[] currentKey) {
    int keySize = 0;
    switch (encryptionMethod) {
    case Constants.ENCRYPTION_128BIT:
        keySize = 16;/*from   w  w w. j a  va2  s .c o m*/
        break;
    case Constants.ENCRYPTION_40BIT:
    case Constants.ENCRYPTION_56BIT:
        keySize = 8;
        break;
    case Constants.ENCRYPTION_NONE:
    case Constants.ENCRYPTION_FIPS:
        //Should never happen...
        return null;
    }

    SHA1Digest sha1 = new SHA1Digest();
    sha1.update(originalKey, 0, keySize);
    sha1.update(Constants.pad36, 0, Constants.pad36.length);
    sha1.update(currentKey, 0, currentKey.length);
    byte[] shaComponent = new byte[Rdp.SHA1_DIGEST_LENGTH];
    sha1.doFinal(shaComponent, 0);

    //StringManip.print(shaComponent, "SHA1:");

    MD5Digest md5 = new MD5Digest();
    md5.update(originalKey, 0, keySize);
    md5.update(Constants.pad5c, 0, Constants.pad5c.length);
    md5.update(shaComponent, 0, shaComponent.length);
    byte[] tempKey = new byte[Rdp.MD5_DIGEST_LENGTH];
    md5.doFinal(tempKey, 0);

    //StringManip.print(tempKey, "MD5:");

    RC4Engine rc4 = new RC4Engine();
    if (keySize == 16) {
        byte[] newKey = new byte[tempKey.length];
        rc4.init(true, new KeyParameter(tempKey));
        rc4.processBytes(tempKey, 0, tempKey.length, newKey, 0);
        return newKey;
    } else {
        byte[] newKey = new byte[8];
        byte[] smallerTmpKey = new byte[8];
        System.arraycopy(tempKey, 0, smallerTmpKey, 0, 8);
        rc4.init(true, new KeyParameter(smallerTmpKey));
        rc4.processBytes(smallerTmpKey, 0, 8, newKey, 0);
        newKey[0] = (byte) 0xd1;
        if (encryptionMethod == Constants.ENCRYPTION_40BIT) {
            newKey[1] = 0x26;
            newKey[2] = (byte) 0x9e;
        }
        return newKey;
    }
}

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From source file:com.jrdp.core.remote.rdp.Secure.java

License:Apache License

/**
 * @param clientRandom random generated by the client
 * @param serverRandom random generated by the server
 * @param keyLength length of keys being requested (40, 56 or 128)
 * @see <a href=http://msdn.microsoft.com/en-us/library/cc240785(v=PROT.10).aspx>
 * 5.3.5.1 Non-FIPS Initial Key Generation</a>
 *///from  w  ww .  j  av a 2s  . co  m
public void setupForNonFipsEncryption(byte[] clientRandom, byte[] serverRandom, int keyLength) {
    if (keyLength != 40 && keyLength != 56 && keyLength != 128) {
        Logger.log(Logger.ERROR, "Received unsupported key length for key generation");
        return;
    }

    //PreMasterSecret = First192Bits(ClientRandom) + First192Bits(ServerRandom)
    byte[] preMasterSecret = new byte[48];
    System.arraycopy(clientRandom, 0, preMasterSecret, 0, 24);
    System.arraycopy(serverRandom, 0, preMasterSecret, 24, 24);

    //SaltedHash(S, I) = MD5(S + SHA(I + S + ClientRandom + ServerRandom))
    //PreMasterHash(I) = SaltedHash(PremasterSecret, I)
    //MasterSecret = PreMasterHash(0x41) + PreMasterHash(0x4242) + PreMasterHash(0x434343)
    byte[] masterSecret = saltedHash(clientRandom, serverRandom, preMasterSecret, masterSecretValues);

    //MasterHash(I) = SaltedHash(MasterSecret, I)
    //SessionKeyBlob = MasterHash(0x58) + MasterHash(0x5959) + MasterHash(0x5A5A5A)
    byte[] sessionKeyBlob = saltedHash(clientRandom, serverRandom, masterSecret, sessionKeyBlobValues);

    //MACKey128 = First128Bits(SessionKeyBlob)
    //FinalHash(K) = MD5(K + ClientRandom + ServerRandom)
    //InitialClientDecryptKey128 = FinalHash(Second128Bits(SessionKeyBlob))
    //InitialClientEncryptKey128 = FinalHash(Third128Bits(SessionKeyBlob))
    byte[] macKey = new byte[16];
    byte[] encryptKey = new byte[16];
    byte[] decryptKey = new byte[16];
    System.arraycopy(sessionKeyBlob, 0, macKey, 0, 16);
    MD5Digest md5 = new MD5Digest();
    md5.update(sessionKeyBlob, 16, 16);
    md5.update(clientRandom, 0, clientRandom.length);
    md5.update(serverRandom, 0, serverRandom.length);
    md5.doFinal(decryptKey, 0);
    md5.update(sessionKeyBlob, 32, 16);
    md5.update(clientRandom, 0, clientRandom.length);
    md5.update(serverRandom, 0, serverRandom.length);
    md5.doFinal(encryptKey, 0);

    if (keyLength == 40 || keyLength == 56) {
        //MACKey56 = 0xD1 + Last56Bits(First64Bits(MACKey128))
        //FinalHash(K) = MD5(K + ClientRandom + ServerRandom)
        //InitialClientEncryptKey56 = 0xD1 + Last56Bits(First64Bits(InitialClientEncryptKey128))
        //InitialClientDecryptKey56 = 0xD1 + Last56Bits(First64Bits(InitialClientDecryptKey128))
        macKey[0] = encryptKey[0] = decryptKey[0] = (byte) 0xd1;
        if (keyLength == 40) {
            //MACKey40 = 0xD1269E + Last40Bits(First64Bits(MACKey128))
            //FinalHash(K) = MD5(K + ClientRandom + ServerRandom)
            //InitialClientEncryptKey40 = 0xD1269E + Last40Bits(First64Bits(InitialClientEncryptKey128))
            //InitialClientDecryptKey40 = 0xD1269E + Last40Bits(First64Bits(InitialClientDecryptKey128))
            macKey[1] = encryptKey[1] = decryptKey[1] = 0x26;
            macKey[2] = encryptKey[2] = decryptKey[2] = (byte) 0x9e;
        }
        byte[] tempMac = new byte[8];
        byte[] tempEncrypt = new byte[8];
        byte[] tempDecrypt = new byte[8];
        System.arraycopy(macKey, 0, tempMac, 0, 8);
        System.arraycopy(encryptKey, 0, tempEncrypt, 0, 8);
        System.arraycopy(decryptKey, 0, tempDecrypt, 0, 8);
        encryption = new RC4Session(tempEncrypt, tempDecrypt, tempMac, encryptionMethod);
    } else if (keyLength == 128) {
        encryption = new RC4Session(encryptKey, decryptKey, macKey, encryptionMethod);
    }
}

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From source file:com.jrdp.core.remote.rdp.Secure.java

License:Apache License

private static byte[] saltedHash(byte[] clientRandom, byte[] serverRandom, byte[] salt, byte[][] in) {
    byte[] saltedHash = new byte[MD5_DIGEST_LENGTH * in.length];
    for (int i = 0; i < in.length; i++) {
        SHA1Digest sha1 = new SHA1Digest();
        sha1.update(in[i], 0, in[i].length);
        sha1.update(salt, 0, salt.length);
        sha1.update(clientRandom, 0, clientRandom.length);
        sha1.update(serverRandom, 0, serverRandom.length);
        byte[] sha1Digest = new byte[SHA1_DIGEST_LENGTH];
        sha1.doFinal(sha1Digest, 0);/*from  ww w  .  j  a  va  2s .  com*/

        MD5Digest md5 = new MD5Digest();
        md5.update(salt, 0, salt.length);
        md5.update(sha1Digest, 0, sha1Digest.length);
        byte[] md5Digest = new byte[MD5_DIGEST_LENGTH];
        md5.doFinal(md5Digest, 0);

        System.arraycopy(md5Digest, 0, saltedHash, i * MD5_DIGEST_LENGTH, MD5_DIGEST_LENGTH);
    }
    return saltedHash;
}

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From source file:com.pmovil.codenameone.nativeshare.Share.java

License:Open Source License

private static String md5(String text) {
    MD5Digest digest = new MD5Digest();
    byte[] data = text.getBytes();
    digest.update(data, 0, data.length);
    byte[] md5 = new byte[digest.getDigestSize()];
    digest.doFinal(md5, 0);//from   ww  w.j  av a2  s.  c  o m
    return bytesToHex(md5);
}

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From source file:com.verhas.licensor.HardwareBinder.java

private void updateWithNetworkData(final MD5Digest md5, final NetworkInterfaceData[] networkInterfaces)
        throws UnsupportedEncodingException {
    for (final NetworkInterfaceData ni : networkInterfaces) {
        md5.update(ni.name.getBytes("utf-8"), 0, ni.name.getBytes("utf-8").length);
        if (ni.hwAddress != null) {
            md5.update(ni.hwAddress, 0, ni.hwAddress.length);
        }//w  w w.  j  ava 2 s  . com
    }
}

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From source file:com.verhas.licensor.HardwareBinder.java

private void updateWithHostName(final MD5Digest md5) throws UnknownHostException, UnsupportedEncodingException {
    final String hostName = java.net.InetAddress.getLocalHost().getHostName();
    md5.update(hostName.getBytes("utf-8"), 0, hostName.getBytes("utf-8").length);
}

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From source file:com.verhas.licensor.HardwareBinder.java

private void updateWithArchitecture(final MD5Digest md5) throws UnsupportedEncodingException {
    final String architectureString = System.getProperty("os.arch");
    md5.update(architectureString.getBytes("utf-8"), 0, architectureString.getBytes("utf-8").length);
}

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From source file:com.yacme.ext.oxsit.cust_it.comp.security.cert.X509CertDisplayBase_IT.java

License:Open Source License

protected void initThumbPrints() {
    //obtain a byte block of the entire certificate data
    ByteArrayOutputStream bOut = new ByteArrayOutputStream();
    DEROutputStream dOut = new DEROutputStream(bOut);
    try {//from w  ww  .  ja  va 2 s  . c om
        dOut.writeObject(m_aX509);
        byte[] certBlock = bOut.toByteArray();

        //now compute the certificate SHA1 & MD5 digest
        SHA1Digest digsha1 = new SHA1Digest();
        digsha1.update(certBlock, 0, certBlock.length);
        byte[] hashsha1 = new byte[digsha1.getDigestSize()];
        digsha1.doFinal(hashsha1, 0);
        m_sSHA1Thumbprint = Helpers.printHexBytes(hashsha1);
        MD5Digest digmd5 = new MD5Digest();
        digmd5.update(certBlock, 0, certBlock.length);
        byte[] hashmd5 = new byte[digmd5.getDigestSize()];
        digmd5.doFinal(hashmd5, 0);
        m_sMD5Thumbprint = Helpers.printHexBytes(hashmd5);
    } catch (IOException e) {
        m_aLogger.severe("initThumbPrints", e);
    }
}

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