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Merge User and System BisPartition_t because they are the same key anyway

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Rajko Stojadinovic 2018-04-25 18:43:10 +02:00
parent b9f9a4876f
commit cd1b5731d4
2 changed files with 6 additions and 9 deletions
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12
fusee/fusee-secondary/src/key_derivation.c
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@ -196,17 +196,15 @@ void derive_bis_key(void *dst, BisPartition_t partition_id, u32 target_firmware)
static const u8 bis_kek_source[0x10] = {0x34, 0xC1, 0xA0, 0xC4, 0x82, 0x58, 0xF8, 0xB4, 0xFA, 0x9E, 0x5E, 0x6A, 0xDA, 0xFC, 0x7E, 0x4F};
const int key_source_idx = (partition_id > 2) ? 2 : partition_id;
switch (partition_id) {
case BisPartition_Calibration:
fusee_generate_specific_aes_key(dst, key_source_for_bis[key_source_idx][0], false, target_firmware);
fusee_generate_specific_aes_key(dst + 0x10, key_source_for_bis[key_source_idx][1], false, target_firmware);
fusee_generate_specific_aes_key(dst, key_source_for_bis[partition_id][0], false, target_firmware);
fusee_generate_specific_aes_key(dst + 0x10, key_source_for_bis[partition_id][1], false, target_firmware);
break;
case BisPartition_Safe:
case BisPartition_User:
case BisPartition_System:
fusee_generate_personalized_aes_key_for_bis(dst, bis_kek_source, key_source_for_bis[key_source_idx][0], target_firmware);
fusee_generate_personalized_aes_key_for_bis(dst + 0x10, bis_kek_source, key_source_for_bis[key_source_idx][1], target_firmware);
case BisPartition_UserSystem:
fusee_generate_personalized_aes_key_for_bis(dst, bis_kek_source, key_source_for_bis[partition_id][0], target_firmware);
fusee_generate_personalized_aes_key_for_bis(dst + 0x10, bis_kek_source, key_source_for_bis[partition_id][1], target_firmware);
break;
default:
generic_panic();

3
fusee/fusee-secondary/src/key_derivation.h
View file

@ -17,8 +17,7 @@
typedef enum {
BisPartition_Calibration = 0,
BisPartition_Safe = 1,
BisPartition_User = 2,
BisPartition_System = 3
BisPartition_UserSystem = 2
} BisPartition_t;
typedef struct {