buildroot/boot/optee-os/0001-scripts-pem_to_pub_c.py-sign.py-use-pycryptodomex.patch

From 06e71feaeb08349abe56b50c3dfb08a8341cf55f Mon Sep 17 00:00:00 2001
From: Romain Naour <romain.naour@gmail.com>
Date: Sun, 26 Apr 2020 21:55:55 +0200
Subject: [PATCH] scripts/pem_to_pub_c.py/sign.py: use pycryptodomex

These scripts still use pycrypto.

From [1]:
"PyCryptodome is a fork of PyCrypto, which is not maintained any more
(the last release dates back to 2013 [2]). It exposes almost the same
API, but there are a few incompatibilities [3]."

Don't use upstream commit since it also switches from the algorithm
TEE_ALG_RSASSA_PKCS1_V1_5_SHA256 to TEE_ALG_RSASSA_PKCS1_PSS_MGF1_SHA256
when replacing pycrypto to pycryptodomex [4].

[1] https://github.com/OP-TEE/optee_os/commit/90ad2450436fdd9fc0d28a3f92f3fbcfd89a38f0
[2] https://pypi.org/project/pycrypto/#history
[3] https://pycryptodome.readthedocs.io/en/latest/src/vs_pycrypto.html
[4] https://github.com/OP-TEE/optee_os/commit/ababd72d2fd76cb2ded8e202b49db28d6545f6eb

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 scripts/pem_to_pub_c.py | 4 ++--
 scripts/sign.py         | 8 ++++----
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/scripts/pem_to_pub_c.py b/scripts/pem_to_pub_c.py
index 3a896a39..d3f0e500 100755
--- a/scripts/pem_to_pub_c.py
+++ b/scripts/pem_to_pub_c.py
@@ -21,8 +21,8 @@ def get_args():
 
 def main():
     import array
-    from Crypto.PublicKey import RSA
-    from Crypto.Util.number import long_to_bytes
+    from Cryptodome.PublicKey import RSA
+    from Cryptodome.Util.number import long_to_bytes
 
     args = get_args()
 
diff --git a/scripts/sign.py b/scripts/sign.py
index 2939c591..80ce2e9f 100755
--- a/scripts/sign.py
+++ b/scripts/sign.py
@@ -121,10 +121,10 @@ def get_args(logger):
 
 
 def main():
-    from Crypto.Signature import PKCS1_v1_5
-    from Crypto.Hash import SHA256
-    from Crypto.PublicKey import RSA
-    from Crypto.Util.number import ceil_div
+    from Cryptodome.Signature import PKCS1_v1_5
+    from Cryptodome.Hash import SHA256
+    from Cryptodome.PublicKey import RSA
+    from Cryptodome.Util.number import ceil_div
     import base64
     import logging
     import os
-- 
2.25.3