From 1951bf6444d4d5cdaaf0eee1b89a462c32b92b38 Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Sun, 15 Sep 2013 12:05:43 -0500
Subject: add cryptrec and openssl test vector loaders + tests

---
 tests/utils.py | 83 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 83 insertions(+)

(limited to 'tests/utils.py')

diff --git a/tests/utils.py b/tests/utils.py
index 9362464e..bbb4843f 100644
--- a/tests/utils.py
+++ b/tests/utils.py
@@ -59,3 +59,86 @@ def load_nist_vectors_from_file(filename, op, fields):
     )
     with open(os.path.join(base, filename), "r") as vector_file:
         return load_nist_vectors(vector_file, op, fields)
+
+
+def load_cryptrec_vectors_from_file(filename):
+    base = os.path.join(
+        os.path.dirname(__file__), "primitives", "vectors", "CRYPTREC",
+    )
+    with open(os.path.join(base, filename), "r") as vector_file:
+        return load_cryptrec_vectors(vector_file)
+
+
+def load_cryptrec_vectors(vector_data):
+    keys, data = [], {}
+
+    for line in vector_data:
+        line = line.strip()
+
+        # Blank lines and comments are ignored
+        if not line or line.startswith("#"):
+            continue
+
+        if line.startswith("K"):
+            keys.append(line.split(" : ")[1].replace(" ", ""))
+            # create an array under the key to hold all the P+C pairs
+            data[keys[-1]] = []
+        elif line.startswith("P"):
+            # create a new dict to hold the next P+C pair
+            data[keys[-1]].append({})
+            data[keys[-1]][-1]["P"] = line.split(" : ")[1].replace(" ", "")
+        elif line.startswith("C"):
+            data[keys[-1]][-1]["C"] = line.split(" : ")[1].replace(" ", "")
+
+    cryptrec_list = []
+    for key, value in data.items():
+        for pair in value:
+            cryptrec_list.append(
+                (key.encode("ascii"),
+                 pair["P"].encode("ascii"),
+                 pair["C"].encode("ascii"))
+            )
+
+    return cryptrec_list
+
+
+def load_openssl_vectors_from_file(filename, op):
+    base = os.path.join(
+        os.path.dirname(__file__), "primitives", "vectors", "OpenSSL",
+    )
+    with open(os.path.join(base, filename), "r") as vector_file:
+        return load_openssl_vectors(vector_file, op)
+
+
+def load_openssl_vectors(vector_data, op):
+    encrypt, decrypt = [], []
+
+    for line in vector_data:
+        line = line.strip()
+
+        # Blank lines and comments are ignored
+        if not line or line.startswith("#"):
+            continue
+
+        vector = line.split(":")
+        args_list = (vector[1].encode("ascii"),
+                     vector[2].encode("ascii"),
+                     vector[3].encode("ascii"),
+                     vector[4].encode("ascii"))
+        # some OpenSSL vectors have a final field
+        # 0 for decrypt, 1 for encrypt
+        if len(vector) == 6:
+            if int(vector[5]) == 0:
+                decrypt.append(args_list)
+            else:
+                encrypt.append(args_list)
+        else:
+            # if they don't have 1 or 0 they are meant for both enc & dec
+            # and should be added to both the encrypt and decrypt list
+            encrypt.append(args_list)
+            decrypt.append(args_list)
+
+    if op == "ENCRYPT":
+        return encrypt
+    else:
+        return decrypt
-- 
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