Example usage for org.bouncycastle.crypto PBEParametersGenerator PKCS5PasswordToBytes

List of usage examples for org.bouncycastle.crypto PBEParametersGenerator PKCS5PasswordToBytes

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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:com.thecorpora.qbo.androidapk.AESCipher.java

License:Open Source License

private ParametersWithIV getKeyParamWithIv(String keyphrase, byte[] salt) {
    int iterationCount = 1;
    //creating generator for PBE derived keys and ivs as used by open ssl
    PBEParametersGenerator generator = new OpenSSLPBEParametersGenerator();

    //intialse the PBE generator with password, salt and iteration count
    generator.init(PBEParametersGenerator.PKCS5PasswordToBytes(keyphrase.toCharArray()), salt, iterationCount);

    //Generate a key with initialisation vector parameter derived from the password, salt and iteration count
    ParametersWithIV paramWithIv = (ParametersWithIV) generator.generateDerivedParameters(256, 128);
    KeyParameter keyParam = (KeyParameter) paramWithIv.getParameters();

    return paramWithIv;
}

From source file:com.wlami.mibox.core.encryption.PBKDF2.java

License:Open Source License

protected static byte[] doPbkdf2(String password, String salt, int rounds) {
    PBEParametersGenerator pbeParametersGenerator = new PKCS5S2ParametersGenerator();
    pbeParametersGenerator.init(PBEParametersGenerator.PKCS5PasswordToBytes(password.toCharArray()),
            PBEParametersGenerator.PKCS5PasswordToBytes(salt.toCharArray()), rounds);
    KeyParameter keyParameter = (KeyParameter) pbeParametersGenerator
            .generateDerivedParameters(DEFAULT_KEY_LENGTH_BIT);
    return keyParameter.getKey();
}

From source file:edu.vt.middleware.crypt.pbe.OpenSSLKeyGenerator.java

License:Open Source License

/** {@inheritDoc} */
public byte[] generate(final char[] password, final int size) {
    final OpenSSLPBEParametersGenerator generator = new OpenSSLPBEParametersGenerator();
    generator.init(PBEParametersGenerator.PKCS5PasswordToBytes(password), salt);

    final KeyParameter p = (KeyParameter) generator.generateDerivedParameters(size);
    return p.getKey();
}

From source file:edu.vt.middleware.crypt.pbe.PBKDF1KeyGenerator.java

License:Open Source License

/** {@inheritDoc} */
protected byte[] toBytes(final char[] password) {
    return PBEParametersGenerator.PKCS5PasswordToBytes(password);
}

From source file:edu.vt.middleware.crypt.PbeKeyGenerator.java

License:Open Source License

/**
 * Generate a key from a text password using the PKCS#5 version 1 method
 * described at http://www.rsa.com/rsalabs/node.asp?id=2127.
 *
 * @param  password  Raw material used for key generation.
 * @param  keyBitLength  Size of generated key in bits.
 * @param  digest  Digest algorithm to use during key generation.
 * @param  salt  Key initialization data.
 *
 * @return  Secret key based on password.
 *//* w  w w .ja  v  a2  s  .co m*/
public SecretKey generatePkcs5v1(final char[] password, final int keyBitLength, final DigestAlgorithm digest,
        final byte[] salt) {
    final int minSize = keyBitLength / BITS_IN_BYTE;
    if (digest.getDigest().getDigestSize() < minSize) {
        throw new IllegalArgumentException("Digest is too small for chosen key size. "
                + "Use a digest whose size is at least " + minSize + " bytes.");
    }
    return generate(new PKCS5S1ParametersGenerator(digest.getDigest()),
            PBEParametersGenerator.PKCS5PasswordToBytes(password), keyBitLength, salt);
}

From source file:edu.vt.middleware.crypt.PbeKeyGenerator.java

License:Open Source License

/**
 * Generate a key/IV pair from a text password using the PKCS#5 version 1
 * method described at http://www.rsa.com/rsalabs/node.asp?id=2127.
 *
 * @param  password  Raw material used for key generation.
 * @param  keyBitLength  Size of generated key in bits.
 * @param  ivBitLength  Size of generated IV in bits.
 * @param  digest  Digest algorithm to use during key generation.
 * @param  salt  Key initialization data.
 *
 * @return  Secret key based on password.
 *//*  www.ja  v  a  2 s .  c o  m*/
public KeyWithIV generatePkcs5v1(final char[] password, final int keyBitLength, final int ivBitLength,
        final DigestAlgorithm digest, final byte[] salt) {
    final int minSize = (keyBitLength + ivBitLength) / BITS_IN_BYTE;
    if (digest.getDigest().getDigestSize() < minSize) {
        throw new IllegalArgumentException("Digest is too small for chosen key + IV size. "
                + "Use a digest whose size is at least " + minSize + " bytes.");
    }
    return generate(new PKCS5S1ParametersGenerator(digest.getDigest()),
            PBEParametersGenerator.PKCS5PasswordToBytes(password), keyBitLength, ivBitLength, salt);
}

From source file:edu.vt.middleware.crypt.PbeKeyGenerator.java

License:Open Source License

/**
 * Generate a key from a text password using the PKCS#5 version 2.0 method
 * described at http://www.rsa.com/rsalabs/node.asp?id=2127. A SHA-1 digest is
 * used as the calculation function.//from w  w w . j  a  v a2s  .c om
 *
 * @param  password  Raw material used for key generation.
 * @param  keyBitLength  Size of generated key in bits.
 * @param  salt  Key initialization data.
 *
 * @return  Secret key based on password.
 */
public SecretKey generatePkcs5v2(final char[] password, final int keyBitLength, final byte[] salt) {
    return generate(new PKCS5S2ParametersGenerator(), PBEParametersGenerator.PKCS5PasswordToBytes(password),
            keyBitLength, salt);
}

From source file:edu.vt.middleware.crypt.PbeKeyGenerator.java

License:Open Source License

/**
 * Generate a key/IV pair from a text password using the PKCS#5 version 2.0
 * method described at http://www.rsa.com/rsalabs/node.asp?id=2127. A SHA-1
 * digest is used as the calculation function.
 *
 * @param  password  Raw material used for key generation.
 * @param  keyBitLength  Size of generated key in bits.
 * @param  ivBitLength  Size of generated IV in bits.
 * @param  salt  Key initialization data.
 *
 * @return  Secret key based on password.
 *//*from w  ww . j a v a 2 s  .  c o  m*/
public KeyWithIV generatePkcs5v2(final char[] password, final int keyBitLength, final int ivBitLength,
        final byte[] salt) {
    return generate(new PKCS5S2ParametersGenerator(), PBEParametersGenerator.PKCS5PasswordToBytes(password),
            keyBitLength, ivBitLength, salt);
}

From source file:edu.vt.middleware.crypt.PbeKeyGenerator.java

License:Open Source License

/**
 * Generate a key from a text password using a method based ok PKCS#5 version
 * 2 that is consistent with that performed by the openssl enc operation.
 *
 * @param  password  Raw material used for key generation.
 * @param  keyBitLength  Size of generated key in bits.
 * @param  salt  Key initialization data.
 *
 * @return  Secret key based on password.
 *///from w  w  w  .  j  av a2 s  .  co m
public SecretKey generateOpenssl(final char[] password, final int keyBitLength, final byte[] salt) {
    return generate(new OpenSSLPBEParametersGenerator(), PBEParametersGenerator.PKCS5PasswordToBytes(password),
            keyBitLength, salt);
}

From source file:edu.vt.middleware.crypt.PbeKeyGenerator.java

License:Open Source License

/**
 * Generate a key/IV pair from a text password using a strategy compatible
 * with the OpenSSL enc operation. The strategy is based on PKCS#5 version 2,
 * but uses a MD5 hash instead of SHA1 and an iteration count of 1. For
 * compatibility with OpenSSL, the IV size should be equal to key size.
 *
 * @param  password  Raw material used for key generation.
 * @param  keyBitLength  Size of generated key in bits.
 * @param  ivBitLength  Size of generated IV in bits.
 * @param  salt  Key initialization data.
 *
 * @return  Secret key based on password.
 *///  w  ww .j  a v a2s. c o m
public KeyWithIV generateOpenssl(final char[] password, final int keyBitLength, final int ivBitLength,
        final byte[] salt) {
    return generate(new OpenSSLPBEParametersGenerator(), PBEParametersGenerator.PKCS5PasswordToBytes(password),
            keyBitLength, ivBitLength, salt);
}