com.google.crypto.tink.subtle

Interface IndCpaCipher

All Known Implementing Classes:

AesCtrJceCipher

public interface IndCpaCipher

This interface for symmetric key ciphers that are indistinguishable against chosen-plaintext attacks.

Said primitives do not provide authentication, thus should not be used directly, but only to construct safer primitives such as Aead.

Since:

1.0.0

Method Summary

Modifier and Type	Method and Description
byte[]	decrypt(byte[] ciphertext) Decrypts ciphertext.
byte[]	encrypt(byte[] plaintext) Encrypts plaintext.

Method Detail

encrypt

byte[] encrypt(byte[] plaintext)
        throws GeneralSecurityException

Encrypts plaintext. The resulting ciphertext is indistinguishable under chosen-plaintext attack. However, it does not have integrity protection.

Returns:

the resulting ciphertext.

Throws:

GeneralSecurityException

decrypt

byte[] decrypt(byte[] ciphertext)
        throws GeneralSecurityException

Decrypts ciphertext.

Returns:

the resulting plaintext.

Throws:

GeneralSecurityException