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sept: update to support 8.1.0

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This commit is contained in:
Michael Scire
2019-06-18 23:23:31 -07:00
parent c96ae0148e
commit befd912a88
20 changed files with 218 additions and 140 deletions
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13
sept/sept-secondary/sept_sign.py
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@@ -1,5 +1,5 @@
#!/usr/bin/env python
import sys
import sys, os
from struct import pack as pk, unpack as up
from Crypto.Cipher import AES
from Crypto.Hash import CMAC
@@ -41,7 +41,7 @@ def get_last_block_for_desired_mac(key, data, desired_mac):
return last_block
def sign_encrypt_code(code, sig_key, enc_key, iv, desired_mac):
def sign_encrypt_code(code, sig_key, enc_key, iv, desired_mac, version):
# Pad with 0x20 of zeroes.
code = code + bytearray(0x20)
code_len = len(code)
@@ -49,6 +49,9 @@ def sign_encrypt_code(code, sig_key, enc_key, iv, desired_mac):
code_len &= ~0xFFF
code = code + bytearray(code_len - len(code))
# Insert version
code = code[:8] + pk('<I', version) + code[12:]
# Add empty trustzone, warmboot segments.
code = code + bytearray(0x1FE0 - 0x10)
pk11_hdr = b'PK11' + pk('<IIIIIII', 0x1000, 0, 0, code_len - 0x20, 0, 0x1000, 0)
@@ -69,8 +72,10 @@ def main(argc, argv):
if len(code) & 0xF:
code = code + bytearray(0x10 - (len(code) & 0xF))
# TODO: Support dev unit crypto
with open(argv[2], 'wb') as f:
f.write(sign_encrypt_code(code, KEYS.HOVI_SIG_KEY_PRD, KEYS.HOVI_ENC_KEY_PRD, KEYS.IV, b'THANKS_NVIDIA_<3'))
fn, fext = os.path.splitext(argv[2])
for key in range(KEYS.NUM_KEYS):
with open(fn + ('_%02X' % key) + fext, 'wb') as f:
f.write(sign_encrypt_code(code, KEYS.HOVI_SIG_KEY_PRD[key], KEYS.HOVI_ENC_KEY_PRD[key], KEYS.IV[key], b'THANKS_NVIDIA_<3', key))
return 0