ch.epfl.dedis.calypso

Class DecryptKeyReply

java.lang.Object

ch.epfl.dedis.calypso.DecryptKeyReply

public class DecryptKeyReply
extends Object

The response of the DecryptKey RPC call.

Constructor Summary

Constructors

Constructor and Description
DecryptKeyReply(Calypso.DecryptKeyReply proto) Construct from the protobuf representation.

Method Summary

Modifier and Type	Method and Description
byte[]	extractKeyMaterial(Scalar reader) Recover the key material by decrypting each slice and merging all the slices.

Methods inherited from class java.lang.Object

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

Constructor Detail

DecryptKeyReply

public DecryptKeyReply(Calypso.DecryptKeyReply proto)

Construct from the protobuf representation.

Parameters:

proto - the input protobuf

Method Detail

extractKeyMaterial

public byte[] extractKeyMaterial(Scalar reader)
                          throws CothorityCryptoException

Recover the key material by decrypting each slice and merging all the slices. This has to be done because we use ElGamal encryption that can only encrypt 30 bytes when using Ed25519.

Parameters:

reader - The secret key of the reader.

Returns:

the key material

Throws:

CothorityCryptoException - if something went wrong with decoding the point