From cf6ffb5ef3b50fb6485f3e669c28156c03a5420c Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Wed, 12 Feb 2014 16:17:04 -0600
Subject: add cast5 (cbc, cfb, ofb) vector source info to docs

---
 .../custom-vectors/cast5/generate_cast5.py         | 58 ++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100644 docs/development/custom-vectors/cast5/generate_cast5.py

(limited to 'docs/development/custom-vectors/cast5/generate_cast5.py')

diff --git a/docs/development/custom-vectors/cast5/generate_cast5.py b/docs/development/custom-vectors/cast5/generate_cast5.py
new file mode 100644
index 00000000..f038825a
--- /dev/null
+++ b/docs/development/custom-vectors/cast5/generate_cast5.py
@@ -0,0 +1,58 @@
+import binascii
+
+from cryptography.hazmat.backends.openssl.backend import backend
+from cryptography.hazmat.primitives.ciphers import base, algorithms, modes
+
+
+def encrypt(mode, key, iv, plaintext):
+    cipher = base.Cipher(
+        algorithms.CAST5(binascii.unhexlify(key)),
+        mode(binascii.unhexlify(iv)),
+        backend
+    )
+    encryptor = cipher.encryptor()
+    ct = encryptor.update(binascii.unhexlify(plaintext))
+    ct += encryptor.finalize()
+    return binascii.hexlify(ct)
+
+
+def build_vectors(mode, filename):
+    vector_file = open(filename, "r")
+
+    count = 0
+    output = []
+    key = None
+    iv = None
+    plaintext = None
+    ct = None
+    for line in vector_file:
+        line = line.strip()
+        if line.startswith("KEY"):
+            if count != 0:
+                output.append("CIPHERTEXT = {}".format(encrypt(mode, key, iv, plaintext)))
+            output.append("\nCOUNT = {}".format(count))
+            count += 1
+            name, key = line.split(" = ")
+            output.append("KEY = {}".format(key))
+        elif line.startswith("IV"):
+            name, iv = line.split(" = ")
+            iv = iv[0:16]
+            output.append("IV = {}".format(iv))
+        elif line.startswith("PLAINTEXT"):
+            name, plaintext = line.split(" = ")
+            output.append("PLAINTEXT = {}".format(plaintext))
+
+    output.append("CIPHERTEXT = {}".format(encrypt(mode, key, iv, plaintext)))
+    return "\n".join(output)
+
+
+def write_file(data, filename):
+    with open(filename, "w") as f:
+        f.write(data)
+
+cbc_path = "tests/hazmat/primitives/vectors/ciphers/AES/CBC/CBCMMT128.rsp"
+write_file(build_vectors(modes.CBC, cbc_path), "cast5-cbc.txt")
+ofb_path = "tests/hazmat/primitives/vectors/ciphers/AES/OFB/OFBMMT128.rsp"
+write_file(build_vectors(modes.OFB, ofb_path), "cast5-ofb.txt")
+cfb_path = "tests/hazmat/primitives/vectors/ciphers/AES/CFB/CFB128MMT128.rsp"
+write_file(build_vectors(modes.CFB, cfb_path), "cast5-cfb.txt")
-- 
cgit v1.2.3


From 9f540f2bdc70bed5bb06d96c70e45955cb45e5f1 Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Wed, 12 Feb 2014 17:51:57 -0600
Subject: improve formatting and fix pep8 for generate/verify cast5 scripts

---
 docs/development/custom-vectors/cast5/generate_cast5.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'docs/development/custom-vectors/cast5/generate_cast5.py')

diff --git a/docs/development/custom-vectors/cast5/generate_cast5.py b/docs/development/custom-vectors/cast5/generate_cast5.py
index f038825a..fe898ff2 100644
--- a/docs/development/custom-vectors/cast5/generate_cast5.py
+++ b/docs/development/custom-vectors/cast5/generate_cast5.py
@@ -29,7 +29,9 @@ def build_vectors(mode, filename):
         line = line.strip()
         if line.startswith("KEY"):
             if count != 0:
-                output.append("CIPHERTEXT = {}".format(encrypt(mode, key, iv, plaintext)))
+                output.append("CIPHERTEXT = {}".format(
+                    encrypt(mode, key, iv, plaintext))
+                )
             output.append("\nCOUNT = {}".format(count))
             count += 1
             name, key = line.split(" = ")
-- 
cgit v1.2.3


From 89d0506b3044aa49a7ddd1fba9de1c39fa3eb7e7 Mon Sep 17 00:00:00 2001
From: Paul Kehrer <paul.l.kehrer@gmail.com>
Date: Wed, 12 Feb 2014 18:02:45 -0600
Subject: remove unused var

---
 docs/development/custom-vectors/cast5/generate_cast5.py | 1 -
 1 file changed, 1 deletion(-)

(limited to 'docs/development/custom-vectors/cast5/generate_cast5.py')

diff --git a/docs/development/custom-vectors/cast5/generate_cast5.py b/docs/development/custom-vectors/cast5/generate_cast5.py
index fe898ff2..c3f579e7 100644
--- a/docs/development/custom-vectors/cast5/generate_cast5.py
+++ b/docs/development/custom-vectors/cast5/generate_cast5.py
@@ -24,7 +24,6 @@ def build_vectors(mode, filename):
     key = None
     iv = None
     plaintext = None
-    ct = None
     for line in vector_file:
         line = line.strip()
         if line.startswith("KEY"):
-- 
cgit v1.2.3