net.corda.core.crypto

Class TransactionSignature

net.corda.core.utilities.ByteSequence

OpaqueBytes

net.corda.core.crypto.DigitalSignature

net.corda.core.crypto.TransactionSignature

public class TransactionSignature
extends DigitalSignature

A wrapper around a digital signature accompanied with metadata, see MetaData.Full and class DigitalSignature. The signature protocol works as follows: s = sign(MetaData.hashBytes).

See Also:

MetaData.Full, class DigitalSignature

Nested Class Summary

Nested classes/interfaces inherited from class net.corda.core.crypto.DigitalSignature

DigitalSignature.WithKey

Nested classes/interfaces inherited from class net.corda.core.utilities.OpaqueBytes

OpaqueBytes.Companion

Field Summary

Fields inherited from class net.corda.core.utilities.OpaqueBytes

Companion

Constructor Summary

Constructors

Constructor and Description
TransactionSignature(byte[] signatureData, MetaData metaData) A wrapper around a digital signature accompanied with metadata, see MetaData.Full and class DigitalSignature. The signature protocol works as follows: s = sign(MetaData.hashBytes).

Method Summary

Modifier and Type	Method and Description
MetaData	getMetaData()
byte[]	getSignatureData()
boolean	verify() Function to auto-verify a class MetaData object's signature. Note that class MetaData contains both public key and merkle root of the transaction.

Methods inherited from class net.corda.core.utilities.OpaqueBytes

getBytes, getOffset, getSize, of

Methods inherited from class net.corda.core.utilities.ByteSequence

compareTo, copy, equals, getBytes, getOffset, getSize, hashCode, of, of, of, open, subSequence, take, toString

Constructor Detail

TransactionSignature

public TransactionSignature(byte[] signatureData,
                            MetaData metaData)

A wrapper around a digital signature accompanied with metadata, see MetaData.Full and class DigitalSignature. The signature protocol works as follows: s = sign(MetaData.hashBytes).

See Also:

MetaData.Full, class DigitalSignature

Method Detail

verify

public boolean verify()

Function to auto-verify a class MetaData object's signature. Note that class MetaData contains both public key and merkle root of the transaction.

Throws:

- if the key is invalid.

- if this signatureData object is not initialized properly, the passed-in signatureData is improperly encoded or of the wrong type, if this signatureData algorithm is unable to process the input data provided, etc.

- if the signature scheme is not supported for this private key or if any of the clear or signature data is empty.

See Also:

class MetaData, class MetaData

getSignatureData

public byte[] getSignatureData()

getMetaData

public MetaData getMetaData()