com.google.crypto.tink.hybrid

Class HybridDecryptFactory

java.lang.Object

com.google.crypto.tink.hybrid.HybridDecryptFactory

public final class HybridDecryptFactory
extends Object

Static methods for obtaining HybridDecrypt instances.

Usage

 KeysetHandle keysetHandle = ...;
 HybridDecrypt hybridDecrypt = HybridDecryptFactory.getPrimitive(keysetHandle);
 byte[] ciphertext = ...;
 byte[] contextInfo = ...;
 byte[] plaintext = hybridDecrypt.decrypt(ciphertext, contextInfo);
 

The returned primitive works with a keyset (rather than a single key). To decrypt, the primitive uses the prefix of the ciphertext to efficiently select the right key in the set. If the keys associated with the prefix do not work, the primitive tries all keys with OutputPrefixType.RAW.

Since:

1.0.0

Constructor Summary

Constructors

Constructor and Description
HybridDecryptFactory()

Method Summary

Modifier and Type	Method and Description
static HybridDecrypt	getPrimitive(KeysetHandle keysetHandle)
static HybridDecrypt	getPrimitive(KeysetHandle keysetHandle, KeyManager<HybridDecrypt> keyManager)

Methods inherited from class java.lang.Object

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

Constructor Detail

HybridDecryptFactory

public HybridDecryptFactory()

Method Detail

getPrimitive

public static HybridDecrypt getPrimitive(KeysetHandle keysetHandle)
                                  throws GeneralSecurityException

Returns:

a HybridDecrypt primitive from a keysetHandle.

Throws:

GeneralSecurityException

getPrimitive

public static HybridDecrypt getPrimitive(KeysetHandle keysetHandle,
                                         KeyManager<HybridDecrypt> keyManager)
                                  throws GeneralSecurityException

Returns:

a HybridDecrypt primitive from a keysetHandle and a custom keyManager.

Throws:

GeneralSecurityException