com.guardtime.ksi

Interface Verifier

All Known Subinterfaces:

KSI

All Known Implementing Classes:

SignatureVerifier

public interface Verifier

Verifying a KSI signature. An instance of this class can be obtained using SignatureVerifier class.

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.

Method Detail

verify

VerificationResult verify(KSISignature signature,
                          ContextAwarePolicy policy)
                   throws KSIException

Verifies the KSI signature.

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

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

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

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

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

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

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).