ch.epfl.dedis.lib.darc

Class Request

java.lang.Object

ch.epfl.dedis.lib.darc.Request

public class Request
extends Object

The darc request, which represents a request or action that the client signs off for the service to verify.

Constructor Summary

Constructors

Constructor and Description
Request(DarcId baseId, String action, byte[] msg, List<Identity> identities, List<byte[]> signatures) Constructor for the darc request.

Method Summary

Modifier and Type	Method and Description
byte[]	hash() Computes the sha256 digest of the request, the message that it hashes does not include the signature part of the request.
void	setSignatures(List<byte[]> signatures) The setter for signatures.
DarcProto.Request	toProto() Converts this object to the protobuf representation.

Methods inherited from class java.lang.Object

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

Constructor Detail

Request

public Request(DarcId baseId,
               String action,
               byte[] msg,
               List<Identity> identities,
               List<byte[]> signatures)

Constructor for the darc request.

Parameters:

baseId - The base ID of the darc, the service will verify using the latest darc for this base ID.

action - The action of the request, it is typically one of the rules in the darc.

msg - The message that the service will check, typically a hash of some payload that is not contained in the request itself.

identities - The identities of the signers.

signatures - The signature of the signers. It is not essential to set these in the constructor, they can always be set using the setter.

Method Detail

setSignatures

public void setSignatures(List<byte[]> signatures)

The setter for signatures.

Parameters:

signatures - These signatures must be on the digest of the request, i.e. output of the hash method.

toProto

public DarcProto.Request toProto()

Converts this object to the protobuf representation.

Returns:

The protobuf representation.

hash

public byte[] hash()

Computes the sha256 digest of the request, the message that it hashes does not include the signature part of the request.

Returns:

The digest.