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keys: Fix incorrect new console bis key derivation

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This commit is contained in:
shchmue 2019-12-16 13:37:44 -07:00
parent 93c51bde64
commit fa41ad507f
1 changed files with 4 additions and 2 deletions
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6
source/keys/keys.c
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@ -349,14 +349,16 @@ get_tsec: ;
if (pkg1_id->kb >= KB_FIRMWARE_VERSION_500) {
if ((fuse_read_odm(4) & 0x800) && fuse_read_odm(0) == 0x8E61ECAE && fuse_read_odm(1) == 0xF2BA3BB2) {
key_generation = fuse_read_odm(2) & 0x1F;
if (key_generation)
key_generation--;
}
}
if (_key_exists(device_key)) {
if (key_generation) {
se_aes_key_set(8, new_device_key, 0x10);
se_aes_crypt_block_ecb(8, 0, temp_key, new_device_key_sources[pkg1_id->kb - KB_FIRMWARE_VERSION_400]);
se_aes_crypt_block_ecb(8, 0, temp_key, new_device_key_sources[key_generation - KB_FIRMWARE_VERSION_400]);
se_aes_key_set(8, master_key[0], 0x10);
se_aes_unwrap_key(8, 8, new_device_keygen_sources[pkg1_id->kb - KB_FIRMWARE_VERSION_400]);
se_aes_unwrap_key(8, 8, new_device_keygen_sources[key_generation - KB_FIRMWARE_VERSION_400]);
se_aes_crypt_block_ecb(8, 0, temp_key, temp_key);
} else
memcpy(temp_key, device_key, 0x10);