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("ECGOST3410 verification failed");
        }


        //

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        s.initVerify(vKey);


        s.update(data);


        if (!s.verify(sigBytes))
        {
            fail("GOST3410 verification failed");
        }


        keyStoreTest(sKey, vKey);

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        s.setParameter(pss.getParameterSpec(PSSParameterSpec.class));
        
        s.initVerify(pubKey);
        s.update(msg1a);
        if (!s.verify(sig1b))
        {
            fail("SHA256 signature verification failed");
        }


        //

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        s.setParameter(pss.getParameterSpec(PSSParameterSpec.class));
        
        s.initVerify(pubKey);
        s.update(msg1a);
        if (!s.verify(sig1c))
        {
            fail("SHA512 signature verification failed");
        }


        SecureRandom random = new SecureRandom();

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        }


        rawSig.initVerify(pubKey);
        rawSig.update(hash);


        if (!rawSig.verify(rawResult))
        {
            fail("raw mode signature verification failed");
        }
    }

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        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {
            fail("DSTU4145 verification failed");
        }


        BigInteger[] sig = decode(sigBytes);

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        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {
            fail("239 Bit EC verification failed");
        }


        BigInteger[]  sig = derDecode(sigBytes);

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        sgr.initVerify(vKey);


        sgr.update(message);


        if (!sgr.verify(sigBytes))
        {
            fail("239 Bit EC verification failed");
        }


        BigInteger[]  sig = derDecode(sigBytes);

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        s.initVerify(vKey);


        s.update(data);


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


        testKeyFactory((ECPublicKey)vKey, (ECPrivateKey)sKey);

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        s.initVerify(vKey);


        s.update(data);


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

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