kaiyga/MikroTikPatch
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modified: npk.py

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modified:   patch.py
This commit is contained in:
zyb 2024-07-20 06:30:29 +08:00
parent 55355e6c19
commit c4cfc235f1
2 changed files with 28 additions and 27 deletions
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46
npk.py
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@ -212,17 +212,7 @@ class NovaPackage(Package):
import hashlib import hashlib
from mikro import mikro_kcdsa_sign,mikro_eddsa_sign from mikro import mikro_kcdsa_sign,mikro_eddsa_sign
build_time = os.environ['BUILD_TIME'] if 'BUILD_TIME' in os.environ else None build_time = os.environ['BUILD_TIME'] if 'BUILD_TIME' in os.environ else None
if NpkPartID.SIGNATURE in self._parts: if len(self._packages) > 0:
if len(self[NpkPartID.SIGNATURE].data) != 20+48+64:
self[NpkPartID.SIGNATURE].data = b'\0'*(20+48+64)
if build_time:
self[NpkPartID.NAME_INFO].data._build_time = int(build_time)
sha1_digest = self.get_digest(hashlib.new('SHA1'))
sha256_digest = self.get_digest(hashlib.new('SHA256'))
kcdsa_signature = mikro_kcdsa_sign(sha256_digest[:20],kcdsa_private_key)
eddsa_signature = mikro_eddsa_sign(sha256_digest,eddsa_private_key)
self[NpkPartID.SIGNATURE].data = sha1_digest + kcdsa_signature + eddsa_signature
else:
for package in self._packages: for package in self._packages:
if len(package[NpkPartID.SIGNATURE].data) != 20+48+64: if len(package[NpkPartID.SIGNATURE].data) != 20+48+64:
package[NpkPartID.SIGNATURE].data = b'\0'*(20+48+64) package[NpkPartID.SIGNATURE].data = b'\0'*(20+48+64)
@ -233,22 +223,21 @@ class NovaPackage(Package):
kcdsa_signature = mikro_kcdsa_sign(sha256_digest[:20],kcdsa_private_key) kcdsa_signature = mikro_kcdsa_sign(sha256_digest[:20],kcdsa_private_key)
eddsa_signature = mikro_eddsa_sign(sha256_digest,eddsa_private_key) eddsa_signature = mikro_eddsa_sign(sha256_digest,eddsa_private_key)
package[NpkPartID.SIGNATURE].data = sha1_digest + kcdsa_signature + eddsa_signature package[NpkPartID.SIGNATURE].data = sha1_digest + kcdsa_signature + eddsa_signature
else:
if len(self[NpkPartID.SIGNATURE].data) != 20+48+64:
self[NpkPartID.SIGNATURE].data = b'\0'*(20+48+64)
if build_time:
self[NpkPartID.NAME_INFO].data._build_time = int(build_time)
sha1_digest = self.get_digest(hashlib.new('SHA1'))
sha256_digest = self.get_digest(hashlib.new('SHA256'))
kcdsa_signature = mikro_kcdsa_sign(sha256_digest[:20],kcdsa_private_key)
eddsa_signature = mikro_eddsa_sign(sha256_digest,eddsa_private_key)
self[NpkPartID.SIGNATURE].data = sha1_digest + kcdsa_signature + eddsa_signature
def verify(self,kcdsa_public_key:bytes,eddsa_public_key:bytes): def verify(self,kcdsa_public_key:bytes,eddsa_public_key:bytes):
import hashlib import hashlib
from mikro import mikro_kcdsa_verify,mikro_eddsa_verify from mikro import mikro_kcdsa_verify,mikro_eddsa_verify
if NpkPartID.SIGNATURE in self._parts: if len(self._packages) > 0:
sha1_digest = self.get_digest(hashlib.new('SHA1'))
sha256_digest = self.get_digest(hashlib.new('SHA256'))
signature = self[NpkPartID.SIGNATURE].data
if sha1_digest != signature[:20]:
return False
if not mikro_kcdsa_verify(sha256_digest[:20],signature[20:68],kcdsa_public_key):
return False
if not mikro_eddsa_verify(sha256_digest,signature[68:132],eddsa_public_key):
return False
else:
for package in self._packages: for package in self._packages:
sha1_digest = self.get_digest(hashlib.new('SHA1'),package) sha1_digest = self.get_digest(hashlib.new('SHA1'),package)
sha256_digest = self.get_digest(hashlib.new('SHA256'),package) sha256_digest = self.get_digest(hashlib.new('SHA256'),package)
@ -259,6 +248,17 @@ class NovaPackage(Package):
return False return False
if not mikro_eddsa_verify(sha256_digest,signature[68:132],eddsa_public_key): if not mikro_eddsa_verify(sha256_digest,signature[68:132],eddsa_public_key):
return False return False
else:
sha1_digest = self.get_digest(hashlib.new('SHA1'))
sha256_digest = self.get_digest(hashlib.new('SHA256'))
signature = self[NpkPartID.SIGNATURE].data
if sha1_digest != signature[:20]:
return False
if not mikro_kcdsa_verify(sha256_digest[:20],signature[20:68],kcdsa_public_key):
return False
if not mikro_eddsa_verify(sha256_digest,signature[68:132],eddsa_public_key):
return False
return True return True
def save(self,file): def save(self,file):

9
patch.py
View File

@ -310,12 +310,13 @@ def patch_npk_package(package,key_dict,kcdsa_private_key,eddsa_private_key):
run_shell_command(f"rm -f {squashfs_file}") run_shell_command(f"rm -f {squashfs_file}")
def patch_npk_file(key_dict,kcdsa_private_key,eddsa_private_key,input_file,output_file=None): def patch_npk_file(key_dict,kcdsa_private_key,eddsa_private_key,input_file,output_file=None):
npk = NovaPackage.load(input_file) npk = NovaPackage.load(input_file)
if NpkPartID.NAME_INFO in npk._parts: if len(npk._packages) > 0:
patch_npk_package(npk,key_dict,kcdsa_private_key,eddsa_private_key)
else:
for package in npk._packages: for package in npk._packages:
patch_npk_package(package,key_dict,kcdsa_private_key,eddsa_private_key) patch_npk_package(package,key_dict,kcdsa_private_key,eddsa_private_key)
else:
patch_npk_package(npk,key_dict,kcdsa_private_key,eddsa_private_key)
npk.sign(kcdsa_private_key,eddsa_private_key) npk.sign(kcdsa_private_key,eddsa_private_key)
npk.save(output_file or input_file) npk.save(output_file or input_file)