Use of Outdated and Insecure Algorithm DES-ECB to encrypt

[tianjk99]

Please check if there is any problem with using DES-ECB to encrypt.

1. lib/util/vncauth.js, line 35

This algorithm is known to have significant vulnerabilities that can be exploited by attackers, compromising the confidentiality and integrity of sensitive data. DES-ECB uses a fixed encryption key and does not incorporate an initialization vector (IV). As a result, it produces the same output for identical input blocks, making it susceptible to pattern recognition and exposing encrypted data patterns.