Gamecard-Installer-NX/includes/nx/crypto.h

#pragma once

#include <stdint.h>
#include <switch.h>

#include "nx/nca.h"


typedef enum
{
    EncryptMode_Decrypt = 0x0,
    EncryptMode_Encrypt = 0x1
} EncryptMode;


extern uint8_t HEADER_KEK[0x10];
extern uint8_t HEADER_KEY[0x20];
extern uint8_t HEADER_KEY_0[0x10];
extern uint8_t HEADER_KEY_1[0x10];


//
bool init_crypto(void);
void exit_crypto(void);

//
uint32_t crypto_get_sys_key_gen(void);
uint32_t crypto_get_highest_key_gen(NcaKeyAreaEncryptionKeyIndex index);
bool crypto_has_key_gen(NcaKeyAreaEncryptionKeyIndex index, uint32_t key_gen);
bool crypto_has_key_gen_from_keys(NcaKeyAreaEncryptionKeyIndex index, uint8_t key_gen);
const uint8_t *crypto_get_keak_from_keys(NcaKeyAreaEncryptionKeyIndex index, uint8_t key_gen);
const uint8_t *crypto_get_titlekek_from_keys(uint8_t key_gen);

//
const uint8_t *crypto_return_keak_source(NcaKeyAreaEncryptionKeyIndex index);

void *crypto_aes(const void *in, void *out, const uint8_t *key, EncryptMode mode);
void *crypto_aes_ctr(const void *in, void *out, const uint8_t *key, uint8_t *counter, size_t size, uint64_t offset);
void *crypto_aes_cbc(const void *in, void *out, const uint8_t *key, size_t size, void *iv, EncryptMode mode);
void *crypto_aes_xts(const void *in, void *out, const uint8_t *key0, const uint8_t *key1, uint64_t sector, size_t sector_size, size_t data_size, EncryptMode mode);