src/net/authV2.js
/**
     * Compute the data to be signed by the signing key.
     * 
     * @param {string} canonicalRequestData the request data, returned from {@link module:net~AuthorizationV2Builder#buildCanonicalRequestData}
     * @returns {string} the data to sign
     * @private
     */
Compute the data to be signed by the signing key.

@param {string} canonicalRequestData the request data, returned from  module:net~AuthorizationV2Builder#buildCanonicalRequestData
@returns {string} the data to sign
@private
Compute the data to be signed by the signing key . @param { string } canonicalRequestData the request data returned from module : net~AuthorizationV2Builder#buildCanonicalRequestData @returns { string } the data to sign @private
computeSignatureData(canonicalRequestData) {
        return "SNWS2-HMAC-SHA256\n" + iso8601Date(this.requestDate, true) + "\n"
                + Hex.stringify(SHA256(canonicalRequestData));
    }
computeSignatureData ( canonicalRequestData ) { return "SNWS2-HMAC-SHA256\n" + iso8601Date ( this . requestDate , true ) + "\n" + Hex . stringify ( SHA256 ( canonicalRequestData ) ) ; }
Compute the data to be signed by the signing key.
Compute the data to be signed by the signing key .
/*- signature data is like:

            SNWS2-HMAC-SHA256\n
            20170301T120000Z\n
            Hex(SHA256(canonicalRequestData))
        */