Examples of java.security.Signature.verify()

java.security.Signature.verify()
Verifies the passed-in signature.
A call to this method resets this signature object to the state it was in when previously initialized for verification via a call to initVerify(PublicKey). That is, the object is reset and available to verify another signature from the identity whose public key was specified in the call to initVerify. @param signature the signature bytes to be verified. @return true if the signature was verified, false if not. @exception SignatureException if this signature object is not initialized properly, the passed-in signature is improperly encoded or of the wrong type, if this signature algorithm is unable to process the input data provided, etc.


        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("DSA verification failed");
        }


        //

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        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("ECDSA verification failed");
        }


        //

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        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("ECDSA verification failed");
        }


        //

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        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("ECDSA verification failed");
        }


        //

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        s.initVerify(vKey);
        
        s.update(data);
        
        if (!s.verify(sigBytes))
        {
            fail("DSA verification failed");
        }
    }

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        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("DSA verification failed");
        }
    }

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        s.initVerify(vKey);
        
        s.update(data);
        
        if (!s.verify(sigBytes))
        {
            fail("SUN -> BC verification failed");
        }
        
        //

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        s.initVerify(vKey);
        
        s.update(data);
        
        if (!s.verify(sigBytes))
        {
            fail("BC -> SUN verification failed");
        }


        //

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        sig.initVerify(kp.getPublic());


        sig.update(dummySha1);


        sig.verify(sigBytes);


        // reset test


        sig.update(dummySha1);

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        // reset test


        sig.update(dummySha1);


        if (!sig.verify(sigBytes))
        {
            fail("NONEwithDSA failed to reset");
        }


        // lightweight test

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