"CryptoHack is a fun platform for learning cryptography. The emphasis is on breaking bad implementations of "modern" crypto, such as AES, RSA, and Elliptic-curve. The format is a series of puzzles that teach small lessons and motivate further research."-cryptohack.org Not hard enough? Try CryptoPals.com.
Tag: bookmarks
Canned Emails
"a minimal site with prewritten emails"-Canned Emails Nice way to ease yourself into the philosophy of five.sentenc.es. Still, you have to use your judgment. Email isn't always the best medium, e.g., don't break up with someone over email or text.
