Fixed key stream generation
Fixed key stream generation

key streams were limited by the key length earlier (i.e. a single call to salsa20 would generate at most 32 bytes keystream for a 32 byte key). That is fixed now: the keystream is extended to the length of the input by calling salsa20 multiple times (and picking a new nonce every single time)

25A0/DCnet,25A0/DCnet