Sign DCCD Fix 1.0

gistfile1.txt

let elliptic = require('elliptic');
let ec = new elliptic.ec('secp256k1');
let secp256k1 = require('secp256k1')
let wif = require('wif');
let sha256 = require('js-sha256');

let cargoId = inputs.cargoId;
        let information = inputs.information;
        console.log(inputs.privateKey);
        let privateKey = wif.decode(inputs.privateKey);
        privateKey = buf2hex(privateKey.privateKey);
        let keyPair = ec.keyFromPrivate(privateKey);
        let privKey = keyPair.getPrivate("hex");
        let pubKey = keyPair.getPublic();
        console.log(privateKey);
        console.log(`Private key: ${privKey}`);
        console.log("Public key :", pubKey.encode("hex"));
        console.log("Public key (compressed):",
             pubKey.encodeCompressed("hex"));
        let timestamp = Math.round((new Date()).getTime() / 1000);
        let temperature = '0'
        let string = (cargoId + timestamp + temperature + information);
        console.log(string);
        let msgHash = sha256(string);
        let hash = Buffer.from(msgHash, 'hex')
        hash = buf2hex(hash);
        hash = sha256(hash);
        hash = Buffer.from(hash, 'hex')
        console.log(hash);
        let priv = Buffer.from(privateKey, 'hex')
        console.log(buf2hex(priv));
        const sigObj = secp256k1.ecdsaSign(hash, priv);
        let final = (buf2hex(sigObj.signature));
        console.log(final);

        let dictionary = {
            dictionary: {
                cargo_id: cargoId,
                timestamp: timestamp,
                temperature: temperature,
                information: information,
                public_key: pubKey.encode("hex"),
                signed_hash: final
            }
        }
        dispatch(postItems(dictionary))