Example usage for org.bouncycastle.crypto.engines RFC3394WrapEngine RFC3394WrapEngine

Introduction

In this page you can find the example usage for org.bouncycastle.crypto.engines RFC3394WrapEngine RFC3394WrapEngine.

Prototype

public RFC3394WrapEngine(BlockCipher engine) 

Source Link

Document

Create a RFC 3394 WrapEngine specifying the encrypt for wrapping, decrypt for unwrapping.

Usage

From source file:com.github.horrorho.inflatabledonkey.crypto.AESWrap.java

License:Open Source License

public static Optional<byte[]> unwrap(byte[] keyEncryptionKey, byte[] wrappedKey) {
    try {/*from w  w  w.j a v a 2 s  .c  o  m*/
        RFC3394WrapEngine engine = new RFC3394WrapEngine(new AESFastEngine());
        engine.init(false, new KeyParameter(keyEncryptionKey));
        return Optional.of(engine.unwrap(wrappedKey, 0, wrappedKey.length));

    } catch (InvalidCipherTextException ex) {
        logger.warn("-- unwrap() - InvalidCipherTextException: {}", ex);
        return Optional.empty();
    }
}

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From source file:com.github.horrorho.inflatabledonkey.crypto.AESWrap.java

License:Open Source License

public static byte[] wrap(byte[] keyEncryptionKey, byte[] unwrappedKey) {
    RFC3394WrapEngine engine = new RFC3394WrapEngine(new AESFastEngine());
    engine.init(true, new KeyParameter(keyEncryptionKey));
    return engine.wrap(unwrappedKey, 0, unwrappedKey.length);
}

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From source file:com.github.horrorho.inflatabledonkey.crypto.RFC3394Wrap.java

License:Open Source License

public static Optional<byte[]> unwrapAES(byte[] keyEncryptionKey, byte[] wrappedKey) {
    try {/* w w  w.  j a  v a2 s .  c o m*/
        RFC3394WrapEngine engine = new RFC3394WrapEngine(new AESFastEngine());
        engine.init(false, new KeyParameter(keyEncryptionKey));
        return Optional.of(engine.unwrap(wrappedKey, 0, wrappedKey.length));

    } catch (InvalidCipherTextException ex) {
        logger.debug("-- unwrap() - InvalidCipherTextException: {}", ex.getMessage());
        return Optional.empty();
    }
}

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From source file:com.github.horrorho.inflatabledonkey.crypto.RFC3394Wrap.java

License:Open Source License

public static byte[] wrapAES(byte[] keyEncryptionKey, byte[] unwrappedKey) {
    RFC3394WrapEngine engine = new RFC3394WrapEngine(new AESFastEngine());
    engine.init(true, new KeyParameter(keyEncryptionKey));
    return engine.wrap(unwrappedKey, 0, unwrappedKey.length);
}

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From source file:com.github.horrorho.inflatabledonkey.crypto.rfc6637.RFC6637Factory.java

License:Open Source License

public static synchronized RFC6637 secp521r1() {
    if (SECP521R1 == null) {
        SECP521R1 = create("secp521r1", SHA512Digest::new, () -> new RFC3394WrapEngine(new AESFastEngine()),
                RFC6637Constants.ECDH, RFC6637Constants.AES_256, 0x20, RFC6637Constants.SHA512);
    }//from   w w  w  .  j a  v  a 2  s  .c o  m

    return SECP521R1;
}

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From source file:com.github.horrorho.inflatabledonkey.crypto.rfc6637.RFC6637Factory.java

License:Open Source License

public static synchronized RFC6637 secp256r1() {
    if (SECP256R1 == null) {
        SECP256R1 = create("secp256r1", SHA256Digest::new, () -> new RFC3394WrapEngine(new AESFastEngine()),
                RFC6637Constants.ECDH, RFC6637Constants.AES_128, 0x10, RFC6637Constants.SHA256);
    }/* www  .  j a v a  2 s.  c om*/

    return SECP256R1;
}

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