/usr/share/doc/sreeglug
the community knowledge archive — documentation, tutorials, books, links
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Book Security
Crypto 101 (book)
An introductory crypto book, free for everyone — from XOR to TLS.
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Cheat Sheet Security
OWASP Cheat Sheet Series
Concise, practical guidance on auth, sessions, XSS, SQLi and more.
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Documentation Security
OWASP Top 10
The ten most critical web application security risks — read before you deploy anything.
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Tutorial Security
picoCTF
A free, year-round capture-the-flag built for students — start here for cybersecurity practice.
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Tutorial Security
OverTheWire Wargames
SSH-based security games — Bandit teaches the command line while teaching you to break things.