7 cheap used cars that aren't worth the trouble

A cheap car may seem like the deal of a lifetime. However, suspiciously affordable vehicles are often hiding serious flaws.
Scientific Research Publishing

Secure Offline: A Hardware-Bound Cryptographic Framework for Software License Validation in Internet Constrained Educational Environments ()

The system employs HMAC-SHA256 (Hash-based Message Authentication Code using SHA-256) for license integrity verification. SHA-256 refers to the Secure Hash Algorithm producing 256-bit hash values (see ...