Package com.yahoo.security.hpke

Interface Aead

public interface Aead

Authenticated encryption with associated data (AEAD)

Author:

vekterli

Method Summary

Modifier and Type	Method	Description
short	aeadId()	Predefined AEAD ID, as given in RFC 9180 section 7.3
static Aead	aes128Gcm()
short	nK()	The length in bytes of a key for this algorithm.
short	nN()	The length in bytes of a nonce for this algorithm.
short	nT()	The length in bytes of the authentication tag for this algorithm.
byte[]	open(byte[] key, byte[] nonce, byte[] aad, byte[] ct)
byte[]	seal(byte[] key, byte[] nonce, byte[] aad, byte[] pt)

Method Details

seal

byte[] seal(byte[] key,
 byte[] nonce,
 byte[] aad,
 byte[] pt)

Parameters:

key - Symmetric key bytes for encryption

nonce - Nonce to use for the encryption

aad - Associated authenticated data that will not be encrypted

pt - Plaintext to seal

Returns:

resulting ciphertext

open

byte[] open(byte[] key,
 byte[] nonce,
 byte[] aad,
 byte[] ct)

Parameters:

key - Symmetric key bytes for decryption

nonce - Nonce to use for the decryption

aad - Associated authenticated data to verify

ct - ciphertext to decrypt

Returns:

resulting plaintext

nK

short nK()

The length in bytes of a key for this algorithm.

nN

short nN()

The length in bytes of a nonce for this algorithm.

nT

short nT()

The length in bytes of the authentication tag for this algorithm.

aeadId

short aeadId()

Predefined AEAD ID, as given in RFC 9180 section 7.3

aes128Gcm

static Aead aes128Gcm()