This interface is used to sign the Hex format string, and the signature verification uses verifyMessage interface.

❗️
WARNING
Do not use this in any web / user-facing applications. This will expose the private key.

Usage

// sign a Hex formatted string
tronWeb.trx.sign(str, privateKey)

Input Parameters

Parameter	Description	Data Type
str	Hex formatted string	String
privateKey	The private key used for signing. Optional. The default value is the private key passed in when constructing tronweb object.	String

Example

var str = "helloworld"; 
var HexStr = tronWeb.toHex(str);
var signedStr = await tronWeb.trx.sign(HexStr, privateKey);
console.log(signedStr)

>0xe89b777b011b678c9f52e464117f8a8a2193f2cb8d37cbb9e1bd7bd8905fb79046185ea458fab36ed387d60b0842b59b15c7a419797575986492d0271a91d9e71b