Jul 20, 2023

Perl extension to examine a license

CryptLicense decodes an encrypted file and attempts to decrypt it by first, looking for a hash pointer in the caller program called $ptr2_License. The hash contains the path to the License file and an optional ‘private’ key list of modules which will decrypt only with the ‘private’ key. OR, a hash key of ‘next’ with no particular value that indicates to look to the next caller on the stack for the License pointer. If the pointer is not present or the License file is not found successfully, then no further action is taken. If the License file is successfully opened, and the contents validated then the attached encrypted module is loaded and the seconds remaining until License expiration are returned or now in the case of no expiration. Undef is returned for an expired license module fails to load.

Checkout these related ports:
  • Zzuf - Transparent application input fuzzer
  • Zlint - X.509 certificate linter
  • Zeronet - Decentralized websites using Bitcoin crypto and BitTorrent network
  • Zenmap - GUI frontend for the Nmap scanning utility
  • Zeek - System for detecting network intruders in real-time
  • Zaproxy - The OWASP zed attack proxy
  • Yubioath-desktop - GUI for displaying OATH codes with a Yubikey
  • Yubikey-personalization-gui - Graphical YubiKey personalization tool
  • Yubikey-manager-qt - Cross-platform application for configuring any YubiKey
  • Yubikey-agent - Seamless ssh-agent for YubiKeys
  • Yubico-piv-tool - Yubico PIV tool
  • Ylva - Command line password manager and file encryption program
  • Ykpers - Library and tool for personalization of Yubico's YubiKey
  • Ykclient - Yubico C client library
  • Yersinia - Layer 2 vulnerability scanner (switches, spanning tree, 802.1q ...)