Example usage for org.bouncycastle.crypto Digest digest

Introduction

In this page you can find the example usage for org.bouncycastle.crypto Digest digest.

Prototype

digest

Source Link

Usage

From source file:com.github.capone.protocol.crypto.SymmetricKey.java

License:Open Source License

protected static SymmetricKey fromScalarMultiplication(PrivateKey sk, PublicKey pk, boolean localKeyFirst)
        throws InvalidKeyException {
    byte[] scalarmult = new byte[SodiumConstants.SCALAR_BYTES];
    Sodium.crypto_scalarmult_curve25519(scalarmult, sk.toBytes(), pk.toBytes());

    Digest digest = new Digest();
    digest.update(scalarmult);/*  ww  w  . j  a v  a  2s .  co m*/
    if (localKeyFirst) {
        digest.update(sk.getPublicKey().toBytes());
        digest.update(pk.toBytes());
    } else {
        digest.update(pk.toBytes());
        digest.update(sk.getPublicKey().toBytes());
    }

    return SymmetricKey.fromBytes(digest.digest());
}

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