Package org.bouncycastle.crypto.hpke

Class AEAD

java.lang.Object

org.bouncycastle.crypto.hpke.AEAD

public class AEAD
extends java.lang.Object

AEAD wrapper backing HPKEContext.seal(byte[], byte[])/HPKEContext.open(byte[], byte[]). Holds the key and base nonce derived during context setup and applies the RFC 9180 §5.2 nonce-XOR-counter construction per call. Supports the four AEAD suite IDs registered by RFC 9180 (AES-128-GCM, AES-256-GCM, ChaCha20-Poly1305, and the export-only sentinel 0xFFFF).

Typical callers don't construct AEAD directly — obtain a context via HPKE.setupBaseS(org.bouncycastle.crypto.params.AsymmetricKeyParameter, byte[])/etc. and use the seal/open methods on the returned HPKEContext.

Constructor Summary

Constructors

Constructor	Description
AEAD(short aeadId, byte[] key, byte[] baseNonce)

Method Summary

Modifier and Type	Method	Description
byte[]	open(byte[] aad, byte[] ct)
byte[]	open(byte[] aad, byte[] ct, int ctOffset, int ctLength)
byte[]	seal(byte[] aad, byte[] pt)
byte[]	seal(byte[] aad, byte[] pt, int ptOffset, int ptLength)

Methods inherited from class java.lang.Object

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

Constructor Detail

AEAD

public AEAD(short aeadId,
            byte[] key,
            byte[] baseNonce)

Method Detail

seal

public byte[] seal(byte[] aad,
                   byte[] pt)
            throws InvalidCipherTextException

Throws:

InvalidCipherTextException

seal

public byte[] seal(byte[] aad,
                   byte[] pt,
                   int ptOffset,
                   int ptLength)
            throws InvalidCipherTextException

Throws:

InvalidCipherTextException

open

public byte[] open(byte[] aad,
                   byte[] ct)
            throws InvalidCipherTextException

Throws:

InvalidCipherTextException

open

public byte[] open(byte[] aad,
                   byte[] ct,
                   int ctOffset,
                   int ctLength)
            throws InvalidCipherTextException

Throws:

InvalidCipherTextException