Revize e8face67

Re #8573 - Changed extract_public_key method in such way that it now extracts a public key from a private key instead of a certificate

src/services/cryptography.py

@@ -231 +231 @@
             # the process failed because of some other reason (incorrect cert format)
             raise CryptographyException(OPENSSL_EXECUTABLE, args, err.decode())
 
-    def extract_public_key(self, cert_pem: str) -> str:
+    def extract_public_key(self, private_key_pem: str, passphrase=None) -> str:
         """
-        Extracts a public key from the given certificate passed in PEM format
-        :param cert_pem: PEM data representing a certificate from which a public key should be extracted
+        Extracts a public key from the given private key passed in PEM format
+        :param private_key_pem: PEM data representing the private key from which a public key should be extracted
+        :param passphrase: passphrase to be provided when the supplied private key is encrypted
         :return: a string containing the extracted public key in PEM format
         """
-        args = ["x509", "-in", "-", "-noout", "-pubkey"]
-        return self.__run_for_output(args, proc_input=bytes(cert_pem, encoding="utf-8")).decode()
+        args = ["rsa", "-in", "-", "-pubout"]
+        if passphrase is not None:
+            args.extend(["-passin", f"pass:{passphrase}"])
+        return self.__run_for_output(args, proc_input=bytes(private_key_pem, encoding="utf-8")).decode()
 
     def parse_cert_pem(self, cert_pem):
         """