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keys: Fix failure to set device key for BIS deriv

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shchmue 2022-02-09 13:50:17 -07:00
parent 64a6491309
commit b2d970ed2a
1 changed files with 1 additions and 0 deletions
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source/keys/keys.c
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@ -212,6 +212,7 @@ static void _derive_bis_keys(key_derivation_ctx_t *keys) {
} }
_generate_specific_aes_key(8, keys, &keys->bis_key[0], &bis_key_sources[0], key_generation); _generate_specific_aes_key(8, keys, &keys->bis_key[0], &bis_key_sources[0], key_generation);
// kek = generate_kek(bkeks, devkey, aeskek, aeskey) // kek = generate_kek(bkeks, devkey, aeskek, aeskey)
_get_device_key(8, keys, keys->temp_key, key_generation);
_generate_kek(8, bis_kek_source, keys->temp_key, aes_kek_generation_source, aes_key_generation_source); _generate_kek(8, bis_kek_source, keys->temp_key, aes_kek_generation_source, aes_key_generation_source);
se_aes_crypt_ecb(8, DECRYPT, keys->bis_key[1], AES_128_KEY_SIZE * 2, bis_key_sources[1], AES_128_KEY_SIZE * 2); // bkey = unwrap(bkeys, kek) se_aes_crypt_ecb(8, DECRYPT, keys->bis_key[1], AES_128_KEY_SIZE * 2, bis_key_sources[1], AES_128_KEY_SIZE * 2); // bkey = unwrap(bkeys, kek)
se_aes_crypt_ecb(8, DECRYPT, keys->bis_key[2], AES_128_KEY_SIZE * 2, bis_key_sources[2], AES_128_KEY_SIZE * 2); se_aes_crypt_ecb(8, DECRYPT, keys->bis_key[2], AES_128_KEY_SIZE * 2, bis_key_sources[2], AES_128_KEY_SIZE * 2);