September 2015 – Delta's Lair

OS X NVRAM Restriction Bypassed

09/28/201509/23/2016 Linus

Begin with OS X 10.11 El Capitan, a set of security mechanism, System Integrity Protection(SIP), has been enforced and it can only be configured or turned off in the recovery environment like “Recovery HD”. In the “normal environment”, SIP configuration will not be permitted even with root privilege. If so,… Read moreOS X NVRAM Restriction Bypassed

Simple ASCII Encryption and Decryption Tool

09/23/2015 Linus

This is a simple tool play with ASCII to encrypt or decrypt input text. Wrote this for a demo purpose and fun. How to “Encryption”? -> Start with a plaintext character, followed by the ascii value in hex of the next character. The code is kind of self-explain and there… Read moreSimple ASCII Encryption and Decryption Tool