RSA Encryption & Decryption

In the last blog, I had discussed about about private key generation for RSA Algorithm. This blog is going to be about encryption and decryption part of RSA Algorithm.

Encryption:
Let us consider a situation where the mesaage to be encrypted is m, the large prime numbers are p &q , n is the product of p &q, e is the exponent and let c be the encrypted Cipher text. The Code in order this message using RSA Algorithm would be :
The above mentioned code for a specific example will give us the following output.


Decryption:
Encryption uses a public key in order to secure the message. But while decrypting it, a private key is used by the intended reeiver. The code for decrypting is :

The decrypted message will be in hexadecimal. In order it to a alphabetical string , we use the following python code.

$ python -c 'print("50617373776F72642069732064656573".decode("hex"))'



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