com.google.crypto.tink.hybrid.subtle

Class RsaKemHybridEncrypt

java.lang.Object

com.google.crypto.tink.hybrid.subtle.RsaKemHybridEncrypt

All Implemented Interfaces:

HybridEncrypt

public final class RsaKemHybridEncrypt
extends Object
implements HybridEncrypt

Hybrid encryption with RSA-KEM as defined in Shoup's ISO standard proposal as KEM, and AEAD as DEM and HKDF as KDF.

Shoup's ISO standard proposal is available at https://www.shoup.net/iso/std6.pdf.

Constructor Summary

Constructors

Constructor and Description
RsaKemHybridEncrypt(RSAPublicKey recipientPublicKey, String hkdfHmacAlgo, byte[] hkdfSalt, AeadFactory aeadFactory)

Method Summary

Modifier and Type	Method and Description
byte[]	encrypt(byte[] plaintext, byte[] contextInfo) Encryption operation: encrypts plaintext binding contextInfo to the resulting ciphertext.

Methods inherited from class java.lang.Object

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

Constructor Detail

RsaKemHybridEncrypt

public RsaKemHybridEncrypt(RSAPublicKey recipientPublicKey,
                           String hkdfHmacAlgo,
                           byte[] hkdfSalt,
                           AeadFactory aeadFactory)
                    throws GeneralSecurityException

Throws:

GeneralSecurityException

Method Detail

encrypt

public byte[] encrypt(byte[] plaintext,
                      byte[] contextInfo)
               throws GeneralSecurityException

Description copied from interface: HybridEncrypt

Encryption operation: encrypts plaintext binding contextInfo to the resulting ciphertext.

Specified by:

encrypt in interface HybridEncrypt

Returns:

resulting ciphertext

Throws:

GeneralSecurityException