Pro Tip: If Skein is adopted for SHA-3 implementers should seriously consider replacing the addition with XOR to thwart algebraic attacks.

Pro Tip: The digits of numbers like e and Pi are random which makes them exceptionally well suited for stream ciphers.

Pro tip: To maximize #RSA key strength always pick two Mersenne primes for n and p. They are much harder to find than other primes.

Pro tip: When using #RC4 you can overcome the weaker bit patterns by XORing the key stream with the plaintext twice.