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tsencrypt.py

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+from Crypto.PublicKey import RSA
+from Crypto.Cipher import AES, PKCS1_v1_5
+from Crypto.Signature import PKCS1_v1_5 as PKCS1_v1_5s
+from Crypto.Util.Padding import pad
+from Crypto.Hash import SHA1, HMAC
+from Crypto.Random import get_random_bytes
+from sys import argv
+
+SPP_PROD_KEY = """-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----"""
+
+VERSION = 5
+
+ciph = PKCS1_v1_5.new(RSA.import_key(SPP_PROD_KEY))
+sig = PKCS1_v1_5s.new(RSA.import_key(SPP_PROD_KEY))
+
+f = open(argv[1], "rb")
+ts_data = f.read()
+
+aeskey = b"massgrave.dev :3"
+hmackey = b"untrustedstore  "
+
+enc_aeskey = ciph.encrypt(aeskey)
+aeskey_sig = sig.sign(SHA1.new(enc_aeskey))
+hmac = HMAC.new(hmackey, ts_data, SHA1)
+hmac_sig = hmac.digest()
+
+header = VERSION.to_bytes(4, "little") + b"UNTRUSTSTORE" + aeskey_sig + enc_aeskey
+data = hmackey + hmac_sig + b"\x00\x00\x00\x00" + ts_data
+
+aes = AES.new(aeskey, AES.MODE_CBC, b"\x00" * 16)
+encr_data = aes.encrypt(pad(data, AES.block_size))
+
+with open(argv[2], "wb") as g:
+    g.write(header + encr_data)