com.yahoo.security.AeadCipher Maven / Gradle / Ivy
// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
package com.yahoo.security;
import org.bouncycastle.crypto.io.CipherInputStream;
import org.bouncycastle.crypto.io.CipherOutputStream;
import org.bouncycastle.crypto.modes.AEADBlockCipher;
import java.io.InputStream;
import java.io.OutputStream;
/**
* AEAD cipher wrapper to hide the underlying crypto provider used.
*
* @author vekterli
*/
public class AeadCipher {
private final AEADBlockCipher cipher;
private AeadCipher(AEADBlockCipher cipher) {
this.cipher = cipher;
}
static AeadCipher of(AEADBlockCipher cipher) {
return new AeadCipher(cipher);
}
/**
* Returns a wrapping OutputStream that, depending on the cipher mode, either
* encrypts or decrypts all data that is written to it before passing it on to out.
*/
public OutputStream wrapOutputStream(OutputStream out) {
return new CipherOutputStream(out, cipher);
}
/**
* Returns a wrapping InputStream that, depending on the cipher mode, either
* encrypts or decrypts all data that is read from the underlying input stream.
*/
public InputStream wrapInputStream(InputStream in) {
return new CipherInputStream(in, cipher);
}
}