com.guardtime.ksi

Class SignatureVerifier

java.lang.Object

com.guardtime.ksi.SignatureVerifier

All Implemented Interfaces:

Verifier

public class SignatureVerifier
extends Object
implements Verifier

Obtaining Verifier object(s) and using it to verify KSI signatures.

Constructor Summary

Constructors

Constructor and Description
SignatureVerifier()

Method Summary

Modifier and Type	Method and Description
VerificationResult	verify(KSISignature signature, ContextAwarePolicy policy) Verifies the KSI signature.
VerificationResult	verify(KSISignature signature, DataHash documentHash, ContextAwarePolicy policy) Verifies the KSI signature.
VerificationResult	verify(KSISignature signature, DataHash documentHash, Long level, ContextAwarePolicy policy) Verifies the KSI signature.

Methods inherited from class java.lang.Object

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

Constructor Detail

SignatureVerifier

public SignatureVerifier()

Method Detail

verify

public VerificationResult verify(KSISignature signature,
                                 ContextAwarePolicy policy)
                          throws KSIException

Description copied from interface: Verifier

Verifies the KSI signature.

Specified by:

verify in interface Verifier

Parameters:

signature - instance of KSISignature to be verified.

policy - context aware policy ContextAwarePolicy to be used to verify the signature.

Returns:

The verification result (VerificationResult).

Throws:

KSIException - when error occurs (e.g. when communication with KSI service fails).

verify

public VerificationResult verify(KSISignature signature,
                                 DataHash documentHash,
                                 ContextAwarePolicy policy)
                          throws KSIException

Description copied from interface: Verifier

Verifies the KSI signature. User provided document hash is compared against the data hash within the KSI signature.

Specified by:

verify in interface Verifier

Parameters:

signature - instance of KSISignature to be verified.

documentHash - instance of DataHash to be verified against the signature.

policy - context aware policy ContextAwarePolicy to be used to verify the signature.

Returns:

The verification result (VerificationResult).

Throws:

KSIException - when error occurs (e.g. when communication with KSI service fails).

verify

public VerificationResult verify(KSISignature signature,
                                 DataHash documentHash,
                                 Long level,
                                 ContextAwarePolicy policy)
                          throws KSIException

Description copied from interface: Verifier

Verifies the KSI signature. User provided document hash and level are compared against the values within the KSI signature.

Specified by:

verify in interface Verifier

Parameters:

signature - instance of KSISignature to be verified.

documentHash - instance of DataHash to be verified against the signature.

level - local aggregation tree height.

policy - context aware policy ContextAwarePolicy to be used to verify the signature.

Returns:

The verification result (VerificationResult).

Throws:

KSIException - when error occurs (e.g. when communication with KSI service fails).