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ams: replace sept with tsec firmware (#1594)

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* ams: replace sept with tsec firmware

This replaces sept with a custom tsec key derivation firmware.

NOTE: This does not use any TSEC exploits whatsoever; it is a well-signed
TSEC binary assembled with envyas and signed with the real cauth key.

For more details, contact SciresM#0524.

* fusee: only set SBK if it's readable
This commit is contained in:
SciresM
2021-08-20 13:13:29 -07:00
committed by GitHub
parent f175802136
commit 17ca463c3f
137 changed files with 149 additions and 28364 deletions
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9
fusee/fusee-primary/fusee-primary-main/src/hwinit.c
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@@ -158,7 +158,12 @@ static void config_se_brom(void) {
/* Bootrom part we skipped. */
uint32_t sbk[4] = {fuse_chip->FUSE_PRIVATE_KEY[0], fuse_chip->FUSE_PRIVATE_KEY[1], fuse_chip->FUSE_PRIVATE_KEY[2], fuse_chip->FUSE_PRIVATE_KEY[3]};
set_aes_keyslot(0xE, sbk, 0x10);
for (int i = 0; i < 4; ++i) {
if (sbk[i] != 0xFFFFFFFF) {
set_aes_keyslot(0xE, sbk, 0x10);
break;
}
}
/* Lock SBK from being read. */
se->SE_CRYPTO_KEYTABLE_ACCESS[0xE] = 0x7E;
@@ -247,7 +252,7 @@ void nx_hwinit(bool enable_log) {
} else {
uint8_t val = 0x40;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_CNFGBBC, &val, 1);
val = 0x60;
val = 0x58;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_ONOFFCNFG1, &val, 1);
val = 0x38;
i2c_send(I2C_5, MAX77620_PWR_I2C_ADDR, MAX77620_REG_FPS_CFG0, &val, 1);