Added 2Step Encryption Module + Updated Readme.md

Projects/Encryption Module(2 Step)/AES Encryption Template/aes.py

@@ -0,0 +1,36 @@
+import rsa
+import rsa.randnum
+import random
+from Crypto.Cipher import AES
+from secrets import token_bytes
+
+key = rsa.randnum.read_random_bits(128) #Generate a Random Key
+pub_key,prvt_key = rsa.newkeys(512) #Generate Public & Private Keys for RSA Encryption
+encrypted_aes_key = rsa.encrypt(key, pub_key) #Encrypt the Random Key using RSA
+
+def encrypt(msg): #Sending End
+    cipher = AES.new(key,AES.MODE_EAX) #Using the Random Key, encrypt the data using AES
+    nonce = cipher.nonce
+    ciphertext,tag = cipher.encrypt_and_digest(msg.encode('ascii')) #Encode the Data to ASCII, since AES takes only Bytes
+    return nonce, ciphertext, tag
+
+#Send the Encrypted Data, along with the Encrypted Random Key (RSA Encrypted)
+def decrypt(nonce,ciphertext,tag): #Receiving End
+    aes_key = rsa.decrypt(encrypted_aes_key,prvt_key) #Decrypt the Key using RSA
+    cipher = AES.new(aes_key, AES.MODE_EAX, nonce=nonce) #Use the above key to decrypt the Data.
+    plaintext = cipher.decrypt(ciphertext)
+    try:
+        cipher.verify(tag)
+        return plaintext.decode('ascii') #Decode the text from ASCII to String 
+    except:
+        return False
+
+
+
+nonce,ciphertext,tag = encrypt(input("Enter a message: "))
+plaintext = decrypt(nonce,ciphertext,tag)
+print(f'Cipher text: {ciphertext}')
+if not plaintext:
+    print('Message is Corrupted')
+else:
+    print(f'Plain Text: {plaintext}')

Projects/Encryption Module(2 Step)/decrypt.py

@@ -0,0 +1,6 @@
+import rsa
+
+def decryptmsg(cryptmessage,prvt_key):
+    decrypted = rsa.decrypt(cryptmessage,prvt_key).decode()
+    return decrypted
+

Projects/Encryption Module(2 Step)/encrypt.py

@@ -0,0 +1,6 @@
+import rsa
+
+def encryptmsg(message,pub_key):
+    encrypted = rsa.encrypt(message.encode(),pub_key)
+    return encrypted
+

Projects/Encryption Module(2 Step)/test.py

@@ -0,0 +1,10 @@
+import rsa
+import encrypt
+import decrypt
+
+message = input("Enter a message to be encrypted:")
+pub_key,prvt_key = rsa.newkeys(512)
+res = encrypt.encryptmsg(message,pub_key)
+unres = decrypt.decryptmsg(res,prvt_key)
+print("Encrypted Message: ",res)
+print("Decrypted Message: ",unres)

README.md

@@ -100,7 +100,7 @@ After contributing add your **NAME and USER NAME** here:
  5. **Mohit** - [MohitOnHub](https://github.com/MohitOnHub)
  6. **Vikalp Shishodia** - [VkRan](https://github.com/VkRan)
 
- 7. **Full Name** - [User Name](https://github.com/username)
+ 7. **Swapnanil Ray** - [redhatpanda](https://github.com/redhatpanda)
  8. **Full Name** - [User Name](https://github.com/username)