From 4797a57f1ead1563501e95a5cca1f81fe136b7e7 Mon Sep 17 00:00:00 2001
From: JISAUAY <jackson.d.hodge@jbhunt.com>
Date: Mon, 22 Sep 2025 11:29:37 -0500
Subject: [PATCH] init

---
 .gitignore       |  2 ++
 README.md        |  0
 alice.py         | 30 ++++++++++++++++++++++++++++++
 bob.py           | 18 ++++++++++++++++++
 requirements.txt |  1 +
 5 files changed, 51 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 README.md
 create mode 100644 alice.py
 create mode 100644 bob.py
 create mode 100644 requirements.txt

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..2d8364d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+ctext
+key
\ No newline at end of file
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..e69de29
diff --git a/alice.py b/alice.py
new file mode 100644
index 0000000..ebdc80f
--- /dev/null
+++ b/alice.py
@@ -0,0 +1,30 @@
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import pad
+from Crypto.Random import get_random_bytes
+
+
+# Generate new secret key
+with open('key', 'wb') as f:
+    f.write(get_random_bytes(16))
+
+plaintext = input("Please input the message: ")
+
+# Pad plaintext
+plaintext = plaintext.encode()
+
+plaintext = pad(plaintext, 16)
+
+# Read Key
+with open('key', 'rb') as f:
+    aes_key = f.read()
+
+# Encrypt and send (write) message
+cipher = AES.new(aes_key, AES.MODE_CBC)
+
+ciphertext = cipher.encrypt(plaintext)
+
+with open('ctext', 'wb') as f:
+    f.write(ciphertext)
+
+
+
diff --git a/bob.py b/bob.py
new file mode 100644
index 0000000..78ef585
--- /dev/null
+++ b/bob.py
@@ -0,0 +1,18 @@
+from Crypto.Cipher import AES
+from Crypto.Util.Padding import unpad
+
+# Read Key
+with open('key', 'rb') as f:
+    aes_key = f.read()
+
+cipher = AES.new(aes_key, AES.MODE_CBC)
+
+# Read message and decrypt
+
+with open('ctext', 'rb') as f:
+    ciphertext = f.read()
+
+plaintext = unpad(cipher.decrypt(ciphertext), 16)
+
+print(f'Plaintext: {plaintext}')
+
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 0000000..e0267fd
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+pycryptodome==3.23.0
\ No newline at end of file