Feature Request: PowerVu (DES & AES) Support

[Hugo Portisch]

Hi,

as MDAPI Plus is only supporting CSA (FFdesca) I will request the new algos PowerVu (DES) and the AES algo.
I can supply a DLL for these algos:

void *__stdcall des_get_key_struct(void);
void __stdcall des_free_key_struct(void *deskeys);
int __stdcall des_get_keyset_size(void);
void __stdcall des_set_even_control_word(void *deskeys, const uint8_t *cw);
void __stdcall des_set_odd_control_word(void *deskeys, const uint8_t *cw);
void __stdcall des_set_control_words(void *deskeys, const uint8_t *ev, const uint8_t *od);
void __stdcall des_decrypt_packtes(void *cluster, des_keys_t *deskeys);

void *__stdcall aes_get_key_struct(void);
void __stdcall aes_free_key_struct(void *aeskeys);
int __stdcall aes_get_keyset_size(void);
void __stdcall aes_set_even_control_word(void *aeskeys, const uint8_t *cw);
void __stdcall aes_set_odd_control_word(void *aeskeys, const uint8_t *cw);
void __stdcall aes_set_control_words(void *aeskeys, const uint8_t *ev, const uint8_t *od);
void __stdcall aes_decrypt_packtes(void *cluster, aes_keys_t *aeskeys);

So these exports are similar to the FFdecsa functions.

oscam (-emu) with extened CW API is switching the algos with this enum:

enum ca_descr_algo {
    CA_ALGO_DVBCSA,
    CA_ALGO_DES,
    CA_ALGO_AES128,
};

So MDAPI have to add a command that the client is able to switch the algo.
The DES cw keys are the same size like the CSA cw keys, 8 bytes.
But AES cw keys are 16 bytes (128 bit). So for this may DVB_SET_CW_ALT can be used?

How to use:
Default algo is the CA_ALGO_DVBCSA. If needed oscam will switch the algo to DES or AES.
Then oscam is sending the cws for this algo.

[PlusPlus]

Hi, could you please contact me via google hangouts as alexplas@gmail.com