Some links I find useful that you might also:
- Crypto Meta http://cdn.sstatic.net/cryptometa/img/favicon.ico http://meta.crypto.stackexchange.com/q/343/
- Crypto.SE http://cdn.sstatic.net/crypto/img/favicon.ico Kerckhoffs’ principles – Why should I make my cipher public?
- Crypto.SE http://cdn.sstatic.net/crypto/img/favicon.ico Why should I use Authenticated Encryption instead of just encryption?
- Security.SE http://cdn.sstatic.net/security/img/favicon.ico How to securely hash passwords