Example usage for org.bouncycastle.crypto PBEParametersGenerator PKCS5PasswordToBytes

Introduction

In this page you can find the example usage for org.bouncycastle.crypto PBEParametersGenerator PKCS5PasswordToBytes.

Prototype

public static byte[] PKCS5PasswordToBytes(char[] password) 

Source Link

Document

converts a password to a byte array according to the scheme in PKCS5 (ascii, no padding)

Usage

From source file:org.jruby.ext.openssl.x509store.PEMInputOutput.java

License:LGPL

private static byte[] decrypt(byte[] decoded, String dekInfo, char[] passwd)
        throws IOException, GeneralSecurityException {
    if (passwd == null) {
        throw new IOException("Password is null, but a password is required");
    }//www.  j  a  v  a2 s . com
    StringTokenizer tknz = new StringTokenizer(dekInfo, ",");
    String algorithm = tknz.nextToken();
    byte[] iv = Hex.decode(tknz.nextToken());
    if (!CipherModule.isSupportedCipher(algorithm)) {
        throw new IOException("Unknown algorithm: " + algorithm);
    }
    String[] cipher = org.jruby.ext.openssl.Cipher.Algorithm.osslToJsse(algorithm);
    String realName = cipher[3];
    int[] lengths = org.jruby.ext.openssl.Cipher.Algorithm.osslKeyIvLength(algorithm);
    int keyLen = lengths[0];
    int ivLen = lengths[1];
    if (iv.length != ivLen) {
        throw new IOException("Illegal IV length");
    }
    byte[] salt = new byte[8];
    System.arraycopy(iv, 0, salt, 0, 8);
    OpenSSLPBEParametersGenerator pGen = new OpenSSLPBEParametersGenerator();
    pGen.init(PBEParametersGenerator.PKCS5PasswordToBytes(passwd), salt);
    KeyParameter param = (KeyParameter) pGen.generateDerivedParameters(keyLen * 8);
    SecretKey secretKey = new javax.crypto.spec.SecretKeySpec(param.getKey(), realName);
    Cipher c = Cipher.getInstance(realName);
    c.init(Cipher.DECRYPT_MODE, secretKey, new IvParameterSpec(iv));
    return c.doFinal(decoded);
}

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From source file:org.opcfoundation.ua.utils.BouncyCastleUtils.java

License:Open Source License

/**
 * Converts a password to a byte array according to the scheme in PKCS5 (ascii, no padding)
 * @param password a character array representing the password.
 * @return a byte array representing the password.
 *//*from  w  w  w .ja v a2  s.c  o  m*/
public static byte[] PKCS5PasswordToBytes(char[] password) {
    return PBEParametersGenerator.PKCS5PasswordToBytes(password);
}

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From source file:org.xwiki.crypto.password.PasswordToByteConverter.java

License:Open Source License

/**
 * Convert password to bytes./*from   w w w .j  av a 2  s. c o  m*/
 *
 * @param password password to convert.
 * @param mode mode of conversion.
 * @return a bytes array representing the password.
 */
public static byte[] convert(char[] password, ToBytesMode mode) {
    byte[] passwd;

    switch (mode) {
    case PKCS12:
        passwd = PBEParametersGenerator.PKCS12PasswordToBytes(password);
        break;
    case PKCS5:
        passwd = PBEParametersGenerator.PKCS5PasswordToBytes(password);
        break;
    default:
        passwd = PBEParametersGenerator.PKCS5PasswordToUTF8Bytes(password);
        break;
    }

    return passwd;
}

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