de.uni_koblenz.aggrimm.icp.crypto.sign.algorithm

Class SignatureVerifier

java.lang.Object

de.uni_koblenz.aggrimm.icp.crypto.sign.algorithm.SignatureVerifier

public class SignatureVerifier
extends Object

Automatically performs all steps for a signature verification. Detects required algorithms and settings by reading the signature data.

Author:

Peter Schauß

Constructor Summary

Constructors

Constructor and Description
SignatureVerifier()

Method Summary

Modifier and Type	Method and Description
static void	resetAfterVerification(GraphCollection gc) Resets a graph collection after a verification Removes all temporary hash and signature values Removes MSGs and converts them back to triple representation without MSGs
static boolean	verify(GraphCollection gc, Key publicKey) Verify a graph collection using a public key A graph collection can only be verified if it contains just a signature graph at root level and nothing else!
static boolean	verify(GraphCollection gc, X509Certificate cert) Verify graph collection using a X.509 certificate
static boolean	verify(String path, Key publicKey) Verify a file using a public key
static boolean	verify(String path, X509Certificate cert) Verify a file using a X.509 certificate

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 static boolean verify(String path,
                             Key publicKey)
                      throws Exception

Verify a file using a public key

Parameters:

path - path to a file containing graph data

publicKey - a public key for signature verification

Returns:

true if successfully verified, false otherwise

Throws:

Exception

verify

public static boolean verify(String path,
                             X509Certificate cert)
                      throws Exception

Verify a file using a X.509 certificate

Parameters:

path - path to a file containing graph data

cert - a public key for signature verification

Returns:

true if successfully verified, false otherwise

Throws:

Exception

verify

public static boolean verify(GraphCollection gc,
                             X509Certificate cert)
                      throws Exception

Verify graph collection using a X.509 certificate

Parameters:

gc -

cert - a public key for signature verification

Returns:

true if successfully verified, false otherwise

Throws:

Exception

verify

public static boolean verify(GraphCollection gc,
                             Key publicKey)
                      throws Exception

Verify a graph collection using a public key A graph collection can only be verified if it contains just a signature graph at root level and nothing else!

Parameters:

gc -

publicKey - a public key for signature verification

Returns:

true if successfully verified, false otherwise

Throws:

Exception - if full verification failed

resetAfterVerification

public static void resetAfterVerification(GraphCollection gc)

Resets a graph collection after a verification Removes all temporary hash and signature values Removes MSGs and converts them back to triple representation without MSGs

Parameters:

gc -