craterdog.security

Class DigitalSeal

java.lang.Object

craterdog.smart.SmartObject<DigitalSeal>

craterdog.security.DigitalSeal

All Implemented Interfaces:

craterdog.core.Composite, Comparable<DigitalSeal>

public final class DigitalSeal
extends craterdog.smart.SmartObject<DigitalSeal>

This class defines the attributes that make up an digital seal that is used to sign a document.

Author:

Derk Norton

Field Summary

Fields

Modifier and Type	Field and Description
SealAttributes	attributes The actual attributes that make up the digital seal.
String	notarySignature A base 32 encoding of the bytes that were generated as a signature of the seal attributes.

Constructor Summary

Constructors

Constructor and Description
DigitalSeal() The default constructor ensures that the custom attribute types (like tags) will be formatted correctly when printed.

Method Summary

Methods inherited from class craterdog.smart.SmartObject

addSerializableClass, addSerializableClass, compareTo, copy, equals, hashCode, toExposedString, toString, toString

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

attributes

public SealAttributes attributes

The actual attributes that make up the digital seal.

notarySignature

public String notarySignature

A base 32 encoding of the bytes that were generated as a signature of the seal attributes. The signature must be generated using the following steps:

1. Format the attributes as a string.
2. Extract the characters of the string into a "UTF-8" based byte array.
3. Generate the signature bytes for that array using the algorithm specified in the Watermark of the signed document.
4. Encode the signature bytes as a base 32 string using the craterdog.utils.Base32Utils class.

Constructor Detail

DigitalSeal

public DigitalSeal()

The default constructor ensures that the custom attribute types (like tags) will be formatted correctly when printed.