Removes apps folder

generate_keys.py

@@ -0,0 +1,66 @@
+import os.path
+from getopt import getopt
+from sys import argv, exit
+
+from cryptography.hazmat.backends import default_backend
+from cryptography.hazmat.primitives import serialization
+from cryptography.hazmat.primitives.asymmetric import ec
+
+
+"""
+Simple too to generate an ECDSA key pair using the secp256k1 curve and store it on disk.
+
+Default output dir = .
+Default key naming = teos_sk.der and teos_pk.der
+
+The output dir and naming can be changed using the -n and -d command line options, respectively.
+
+DISCLAIMER: Use this for testing only, using keys generated from this file in production is highly unadvised.
+"""
+
+
+def save_sk(sk, filename):
+    der = sk.private_bytes(
+        encoding=serialization.Encoding.DER,
+        format=serialization.PrivateFormat.PKCS8,
+        encryption_algorithm=serialization.NoEncryption(),
+    )
+
+    with open(filename, "wb") as der_out:
+        der_out.write(der)
+
+
+def save_pk(pk, filename):
+    der = pk.public_bytes(encoding=serialization.Encoding.X962, format=serialization.PublicFormat.CompressedPoint)
+    with open(filename, "wb") as der_out:
+        der_out.write(der)
+
+
+if __name__ == "__main__":
+    name = "teos"
+    output_dir = "apps"
+
+    opts, _ = getopt(argv[1:], "n:d:", ["name", "dir"])
+    for opt, arg in opts:
+        if opt in ["-n", "--name"]:
+            name = arg
+
+        if opt in ["-d", "--dir"]:
+            output_dir = arg
+
+    if output_dir.endswith("/"):
+        output_dir = output_dir[:-1]
+
+    SK_FILE_NAME = "{}/{}_sk.der".format(output_dir, name)
+    PK_FILE_NAME = "{}/{}_pk.der".format(output_dir, name)
+
+    if os.path.exists(SK_FILE_NAME):
+        print('A key with name "{}" already exists. Aborting.'.format(SK_FILE_NAME))
+        exit(1)
+
+    sk = ec.generate_private_key(ec.SECP256K1, default_backend())
+    pk = sk.public_key()
+
+    save_sk(sk, SK_FILE_NAME)
+    save_pk(pk, PK_FILE_NAME)
+    print('Saved private key "{}" and public key "{}".'.format(SK_FILE_NAME, PK_FILE_NAME))