com.google.crypto.tink.hybrid.subtle

Class RsaKemHybridDecrypt

java.lang.Object

com.google.crypto.tink.hybrid.subtle.RsaKemHybridDecrypt

All Implemented Interfaces:

HybridDecrypt

public final class RsaKemHybridDecrypt
extends Object
implements HybridDecrypt

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
RsaKemHybridDecrypt(RSAPrivateKey recipientPrivateKey, String hkdfHmacAlgo, byte[] hkdfSalt, AeadFactory aeadFactory)

Method Summary

Modifier and Type	Method and Description
byte[]	decrypt(byte[] ciphertext, byte[] contextInfo) Decryption operation: decrypts ciphertext verifying the integrity of contextInfo.

Methods inherited from class java.lang.Object

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

Constructor Detail

RsaKemHybridDecrypt

public RsaKemHybridDecrypt(RSAPrivateKey recipientPrivateKey,
                           String hkdfHmacAlgo,
                           byte[] hkdfSalt,
                           AeadFactory aeadFactory)
                    throws GeneralSecurityException

Throws:

GeneralSecurityException

Method Detail

decrypt

public byte[] decrypt(byte[] ciphertext,
                      byte[] contextInfo)
               throws GeneralSecurityException

Description copied from interface: HybridDecrypt

Decryption operation: decrypts ciphertext verifying the integrity of contextInfo.

Specified by:

decrypt in interface HybridDecrypt

Returns:

resulting plaintext

Throws:

GeneralSecurityException