ch.epfl.dedis.lib.darc

Class SignaturePath

java.lang.Object

ch.epfl.dedis.lib.darc.SignaturePath

public class SignaturePath
extends Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	OWNER
static int	USER

Constructor Summary

Constructors

Constructor and Description
SignaturePath(DarcOCSProto.SignaturePath proto)
SignaturePath(Darc darc, Signer signer, int role) Overloaded method for convenience.
SignaturePath(List<Darc> darcPath, Identity signer, int role) The role is the final role this signature should be used.
SignaturePath(List<Darc> darcPath, Signer signer, int role) Overloaded method for convenience.
SignaturePath(Signer signer, int role) For creating online paths that don't inlcude the previous darcs but that need the path to be verified by the verifier itself.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object other)
List<Darc>	getDarcs() Returns a copy of the darc-list
List<DarcId>	getPathIDs()
byte[]	getPathMsg() Returns the path as an array of bytes.
Identity	getSigner() Returns the signer of this signature.
DarcOCSProto.SignaturePath	toProto() Creates a protobuf representation of this signature.

Methods inherited from class java.lang.Object

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

Field Detail

OWNER

public static final int OWNER

See Also:

Constant Field Values

USER

public static final int USER

See Also:

Constant Field Values

Constructor Detail

SignaturePath

public SignaturePath(List<Darc> darcPath,
                     Identity signer,
                     int role)

The role is the final role this signature should be used. 0 for owner and 1 for user. In the example given in the Signature-class, if the document only knows the id of the version 0 of the reader darc, then the darcPath will be: Reader.0, Reader.1, Publisher.0, Publisher.1

Parameters:

darcPath -

signer -

role -

SignaturePath

public SignaturePath(List<Darc> darcPath,
                     Signer signer,
                     int role)
              throws CothorityCryptoException

Overloaded method for convenience.

Parameters:

darcPath -

signer -

role -

Throws:

CothorityCryptoException

SignaturePath

public SignaturePath(Darc darc,
                     Signer signer,
                     int role)
              throws CothorityCryptoException

Overloaded method for convenience.

Parameters:

darc -

signer -

role -

Throws:

CothorityCryptoException

SignaturePath

public SignaturePath(Signer signer,
                     int role)
              throws CothorityCryptoException

For creating online paths that don't inlcude the previous darcs but that need the path to be verified by the verifier itself.

Parameters:

signer -

role -

Throws:

CothorityCryptoException

SignaturePath

public SignaturePath(DarcOCSProto.SignaturePath proto)
              throws CothorityCryptoException

Throws:

CothorityCryptoException

Method Detail

getPathMsg

public byte[] getPathMsg()
                  throws CothorityCryptoException

Returns the path as an array of bytes. For the example given under the Signature-class, the following array would be returned for an owner-signature. byte(0) | Reader.0.getId | Reader.1.getId | Publisher.0.getId | Publisher.1.getId

Returns:

Throws:

CothorityCryptoException

getPathIDs

public List<DarcId> getPathIDs()

getDarcs

public List<Darc> getDarcs()

Returns a copy of the darc-list

Returns:

getSigner

public Identity getSigner()

Returns the signer of this signature.

Returns:

toProto

public DarcOCSProto.SignaturePath toProto()

Creates a protobuf representation of this signature.

Returns:

equals

public boolean equals(Object other)

Overrides:

equals in class Object