ch.epfl.dedis.lib.omniledger.darc

Interface Signer

All Known Implementing Classes:

SignerEd25519, SignerX509EC

public interface Signer

Nested Class Summary

Nested Classes

Modifier and Type	Interface and Description
static class	Signer.SignRequestRejectedException

Method Summary

Modifier and Type	Method and Description
Identity	getIdentity() Returns an identity of the signer.
Scalar	getPrivate() Returns the private key of the signer, or throws a NoPrivateKey exception.
Point	getPublic() Returns the public key of the signer or throws a NoPublicKey exception.
byte[]	serialize() Returns an array of bytes representing the signer.
byte[]	sign(byte[] msg) Signs the sha256 hash of the message.

Method Detail

sign

byte[] sign(byte[] msg)
     throws Signer.SignRequestRejectedException

Signs the sha256 hash of the message. It must return an array of bytes that can be verified by the corresponding identity-implementation.

Parameters:

msg -

Returns:

Throws:

Signer.SignRequestRejectedException

getPrivate

Scalar getPrivate()
           throws CothorityCryptoException

Returns the private key of the signer, or throws a NoPrivateKey exception.

Returns:

Throws:

CothorityCryptoException

getPublic

Point getPublic()
         throws CothorityCryptoException

Returns the public key of the signer or throws a NoPublicKey exception.

Returns:

Throws:

CothorityCryptoException

getIdentity

Identity getIdentity()
              throws CothorityCryptoException

Returns an identity of the signer.

Returns:

Throws:

CothorityCryptoException

serialize

byte[] serialize()
          throws IOException

Returns an array of bytes representing the signer. The first byte must indicate the type

Returns:

Throws:

IOException