com.google.crypto.tink.aead.internal

Class InsecureNonceChaCha20Poly1305Jce

java.lang.Object

com.google.crypto.tink.aead.internal.InsecureNonceChaCha20Poly1305Jce

@Immutable
public final class InsecureNonceChaCha20Poly1305Jce
extends Object

Implements ChaCha20Poly1305, as described in RFC 8439, section 2.8.

It is similar to ChaCha20Poly1305Jce, but it offers an interface for the user to choose the nonce, which is needed in HPKE.

It uses the JCE, and requires that algorithm "ChaCha20-Poly1305" is present.

Method Summary

Modifier and Type	Method and Description
static InsecureNonceChaCha20Poly1305Jce	create(byte[] key)
byte[]	decrypt(byte[] nonce, byte[] ciphertext, byte[] associatedData)
byte[]	encrypt(byte[] nonce, byte[] plaintext, byte[] associatedData)
static boolean	isSupported()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

create

public static InsecureNonceChaCha20Poly1305Jce create(byte[] key)
                                               throws GeneralSecurityException

Throws:

GeneralSecurityException

isSupported

public static boolean isSupported()

encrypt

public byte[] encrypt(byte[] nonce,
                      byte[] plaintext,
                      byte[] associatedData)
               throws GeneralSecurityException

Throws:

GeneralSecurityException

decrypt

public byte[] decrypt(byte[] nonce,
                      byte[] ciphertext,
                      byte[] associatedData)
               throws GeneralSecurityException

Throws:

GeneralSecurityException