Here are the classes, structs, unions and interfaces with brief descriptions:

CcryptoAES128	For decryption to be successfull the following need to be identical to the values used for the encryption. the key data the iv data For encryption to be successful the following need to exist. the key data optionally the iv data. If the iv data does not exist a new iv will be generated
Cdatabytes	Baseclass for memory allocation and size information
CencryptedData	Variable size encrypted data
CivData	IV data for AES128 is 12 bytes
CMasterKeyData	Masterkey data for AES128 is 16bytes
Cpass2Key	Create suitable keys for key generation (the masterkey) and encryption/decryption (newkey)