iaik.cms

Class SignatureValue

java.lang.Object

iaik.cms.SignatureValue

public class SignatureValue
extends java.lang.Object

The SignatureValue of a CMS SignerInfo.

The signature value field of a CMS SignerInfo is specified as ASN.1 OCTET STRING (see RFC 5652):

 
 SignatureValue ::= OCTET STRING
 

Provides an alternative way to get the signature value from a SignerInfo object got from a SignedDataInOutStream object during parsing:

 SignedDataInOutStream signedData = ...;
 SignerInfo signerInfo = signedData.getSignerInfos()[0];
 SignatureValue signatureValue = signerInfo.getSigValue();
 byte[] signature = signatureValue.getValue();
 

Usually it is more convenient to get the signature value immediately by calling method getSignatureValue:

 ...
 byte[] signature = signatureValue.getSignatureValue();
 

The only purpose of class SignatureValue is to get the parsed encoded representation of the signature value OCTET STRING:

 ...
 SignatureValue signatureValue = signerInfo.getSigValue();
 byte[] encodedSignatureValue = signatureValue.getEncoded();
 

Constructor Summary

Constructors

Constructor and Description
SignatureValue(byte[] sigValue) Creates a SignatureValue from the given byte value.

Method Summary

Modifier and Type	Method and Description
byte[]	getEncoded() Returns the DER encoded SignatureValue.
byte[]	getValue() Gets the signature value.
iaik.asn1.ASN1Object	toASN1Object() Returns this SignatureValue as ASN1Object.
java.lang.String	toString() Returns a String representation of the signature value.

Methods inherited from class java.lang.Object

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

Constructor Detail

SignatureValue

public SignatureValue(byte[] sigValue)

Creates a SignatureValue from the given byte value.

Parameters:

sigValue - the signature value as byte array

Method Detail

getValue

public byte[] getValue()

Gets the signature value.

Returns:

the signature value

toASN1Object

public iaik.asn1.ASN1Object toASN1Object()

Returns this SignatureValue as ASN1Object.

Returns:

this SignatureValue as ASN1Object

getEncoded

public byte[] getEncoded()

Returns the DER encoded SignatureValue.

Returns:

the DER encoded SignatureValue

toString

public java.lang.String toString()

Returns a String representation of the signature value.

Overrides:

toString in class java.lang.Object

Returns:

the String representation