Added new algo for RSA

[rishabhkemni]

• Used in cryptography, the RSA algorithm is known for its complexity in terms of factoring large prime numbers

Describe your change:

The RSA algorithm is a widely used public-key cryptosystem that enables secure data transmission. It involves generating a pair of keys: a public key for encryption and a private key for decryption. The program you have generates these keys, encrypts a message, and then decrypts it.

https://spyscape.com/article/can-you-crack-these-10-mind-boggling-ciphers-and-codes

• Added an algorithm

Checklist:

• I have read CONTRIBUTING.md.

• This pull request is all my own work -- I have not plagiarized.

• I know that pull requests will not be merged if they fail the automated tests.

• This PR only changes one algorithm file.

• All new Python files are placed inside an existing directory.

• All filenames are in all lowercase characters with no spaces or dashes.

• All functions and variable names follow Python naming conventions.

• All function parameters and return values are annotated with Python type hints.

• All functions have doctests that pass the automated testing.

• All new algorithms include at least one URL that points to Wikipedia or another similar explanation.

Please review and merge

[algorithms-keeper]

Closing this pull request as invalid

@rishabhkemni, this pull request is being closed as none of the checkboxes have been marked. It is important that you go through the checklist and mark the ones relevant to this pull request. Please read the Contributing guidelines.

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• If it is, then mark it by putting a x between the square bracket like so: [x]

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