18ec04019dd131bbcfada4020b001d547244d768f144ef947577ce53a13ad690eb43e4b02a8daa3c168045cd122c0685f083e1656756ba7982721322ebe4da7\"); setPrivateKey(priv) Private Key setter. Parameters: Name Type Description priv Hash Account private key. Example account.setPrivateKey(\"ac3773e06ae74c0fa566b0e421d4e391333f31aef90b383f0c0e83e4873609d6\"); getPrivateKey() Private Key getter. Returns: Account private key. Type Buffer Example var privKey = account.getPrivateKey(); //&lt;Buffer 5b ed 67 f9 9c b3 31 9e 0c 6f 6a 03 