com.amazonaws.encryptionsdk.internal

Interface MessageCryptoHandler

All Superinterfaces:

CryptoHandler

All Known Implementing Classes:

DecryptionHandler, EncryptionHandler, LazyMessageCryptoHandler

public interface MessageCryptoHandler
extends CryptoHandler

Method Summary

Modifier and Type	Method and Description
Map<String,String>	getEncryptionContext() Return the encryption context used in the generation of the data key used for the encryption of content.
CiphertextHeaders	getHeaders()
List<? extends MasterKey<?>>	getMasterKeys() All used MasterKeys.
void	setMaxInputLength(long size) Informs this handler of an upper bound on the input data size.

Methods inherited from interface com.amazonaws.encryptionsdk.internal.CryptoHandler

doFinal, estimateFinalOutputSize, estimateOutputSize, estimatePartialOutputSize, isComplete, processBytes

Method Detail

setMaxInputLength

void setMaxInputLength(long size)

Informs this handler of an upper bound on the input data size. The handler will throw an exception if this bound is exceeded, and may use it to perform performance optimizations as well.

If this method is called multiple times, the smallest bound will be used.

Parameters:

size - An upper bound on the input data size.

getEncryptionContext

Map<String,String> getEncryptionContext()

Return the encryption context used in the generation of the data key used for the encryption of content.

During decryption, this value should be obtained by parsing the ciphertext headers that encodes this value.

Returns:

the key-value map containing the encryption context.

getHeaders

CiphertextHeaders getHeaders()

getMasterKeys

List<? extends MasterKey<?>> getMasterKeys()

All used MasterKeys. For encryption flows, these are all the MasterKeys used to protect the data. In the decryption flow, it is the single MasterKey actually used to decrypt the data.