Package software.amazon.encryption.s3.internal

Class CipherProvider

java.lang.Object

software.amazon.encryption.s3.internal.CipherProvider

public class CipherProvider
extends Object

Composes a CMM to provide S3 specific functionality

Constructor Summary

Constructors

Constructor	Description
CipherProvider()

Method Summary

Modifier and Type	Method	Description
static Cipher	createAndInitCipher(CryptographicMaterials materials, byte[] iv, byte[] messageId)	Given some materials and an IV, create and init a Cipher object.
static SecretKey	generateDerivedEncryptionKey(CryptographicMaterials materials, byte[] messageId)

Methods inherited from class java.lang.Object

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

Constructor Detail

CipherProvider

public CipherProvider()

Method Detail

generateDerivedEncryptionKey

public static SecretKey generateDerivedEncryptionKey(CryptographicMaterials materials,
                                                     byte[] messageId)

createAndInitCipher

public static Cipher createAndInitCipher(CryptographicMaterials materials,
                                         byte[] iv,
                                         byte[] messageId)

Given some materials and an IV, create and init a Cipher object.

Parameters:

materials - the materials which dictate e.g. algorithm suite

iv -

messageId -

Returns:

a Cipher object, initialized and ready to use