test verify npm ecdsa

var ecdsa = require('ecdsa')('secp128r1');

function verifySignature(){

    var signatureBuf = new Buffer("e3d0c9fddc7dc7711767d302b55973ed4787ed4615e07252c877fe89856a1631", 'hex');

    var plainBuf = new Buffer("0423c072623380", 'hex');

    var publicKeyBuf = new Buffer("04494e1a386d3d3cfe3dc10e5de68a499b1c202db5b132393e89ed19fe5be8bc61", 'hex');

    var isValid;
    try {
        isValid = ecdsa.verify(plainBuf, signatureBuf, publicKeyBuf);
    }
    catch(ex){
        console.log(ex);
    }

    console.log('isvalid?', isValid);
    return isValid;
}

exports.verifySignature = verifySignature;