# Reverse Cipher

#### Algorithm of Reverse Cipher

The algorithm of reverse cipher holds the following features −

```
- Reverse Cipher uses a pattern of reversing the string of plain text to convert as cipher text.

- The process of encryption and decryption is same.

- To decrypt cipher text, the user simply needs to reverse the cipher text to get the plain text.
```

![Reverse Cipher](https://www.tutorialspoint.com/cryptography_with_python/images/dawback.jpg)

#### Example

Consider an example where the statement This is program to explain reverse cipher is to be implemented with reverse cipher algorithm. The following python code uses the algorithm to obtain the output.

```python
# Python program to illustrate Reverse Cipher Technique

def reverse(text):
    result = ""
    for i in range(len(text) - 1, -1, -1):
        result += text[i]
    return result

# plain text
text = "This is program to explain reverse cipher"

# calling the reverse function
s = reverse(text)

print("Plain Text : ", text)
print("Cipher: ", s)
```

When the above code is executed, it produces the following result −

```
Plain Text :  This is program to explain reverse cipher
Cipher:  repihc esrever ylniapxe ot margorp si sihT
```

#### Explaination

The above code uses the reverse function to reverse the string of plain text. The reverse function takes the string as an argument and returns the reversed string. The reversed string is stored in the variable s. The variable s is printed as the cipher text.

#### Assignment.

1. Write a python program to implement reverse cipher algorithm using a while loop.
2. Using lambda function, write a python program to implement reverse cipher algorithm.


---

# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://kallyasmedia.gitbook.io/cit-python-cohort-three/week8/cryptography/reverse_cipher.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.