com.amazonaws.cloudhsm.jce.provider

Class AesGcmCipher

java.lang.Object

javax.crypto.CipherSpi

com.amazonaws.cloudhsm.jce.provider.AesGcmCipher

public class AesGcmCipher
extends javax.crypto.CipherSpi

AesGcmCipher implements CipherSpi for the "AES/GCM/NoPadding" transformation.

CloudHSM's AES/GCM/NoPadding implementation is special with respect to IV. During the Encrypt operation mode, the IV is generated within CloudHSM and any caller-provided IV is ignored. Applications may call Cipher.getIV() after Cipher.doFinal() to get the generated IV.

CloudHSM does not need a SecureRandom source, as the HSM handles randomness internally. Any source of SecureRandom passed to Cipher methods will be ignored.

See Also:

Cipher, SecureRandom, GCMParameterSpec

Constructor Summary

Constructors

Constructor and Description
AesGcmCipher(CloudHsmProvider provider) Constructs this Cipher in GCM mode with no padding.

Method Summary

Methods inherited from class java.lang.Object

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

Constructor Detail

AesGcmCipher

public AesGcmCipher(CloudHsmProvider provider)
             throws java.lang.IllegalStateException

Constructs this Cipher in GCM mode with no padding.

Parameters:

provider - CloudHSM provider that offers this service.

Throws:

java.lang.IllegalStateException - when provider is null.