[Cryptography Team] [ANN] Fortuna and RandomGenerator

I have just posted the following packages:

- Cryptography-RandomAndPrime-cmm.3 - Cryptography-Core-cmm.18

RandomAndPrime refactors SecureRandom into the following hierarchy:

RandomGenerator SecureRandom

with a short, well-considered API. RandomGenerator provides:

nextBits:, nextBytes:, nextFrom:to:, and nextInt:

Subclasses must implement nextBits: and nextBytes:.

With these new versions, you may then load

- Fortuna-cmm.5

which adds a Fortuna subclass exactly as specified by Practical Cryptography.

The changes to Cryptography-Core include:

- implemented BlockCipherMode>>#destroy to avoid potential leakage. - minor improvements to CTR mode. - changed HashFunction>>#doubleHashMessage: to answer a ByteArray (LSB first) intead of an Integer.