This is a simple implementation of RSA encryption and decryption for educational purposes only. It is mostly based on this course: https://www.educative.io/courses/everyday-cryptography/JPpNR32rK0v.
private, public, err := GenerateKeysPair()
original_plaintext := "Lorem ipsum"
ciphertext := Encrypt(original_plaintext, public)
decrypted_plaintext := Decrypt(ciphertext, private)- Key pair generation
- Encryption and decryption
- Randomized padding - outputs different ciphertexts on each encryption
This toy implementation has several limitations:
- Uses short primes that fit into 16 bits.
- Uses int32 for each byte, which is not an efficient encoding scheme.
- Does not use cryptographically strong random number generators.
To enhance clarity and simplicity, I have omitted all these complications.
This is a toy implementation and should not be used for any real-world cryptographic tasks.
I hope this code helps you understand the basics of RSA. Feel free to explore and experiment with the code.
Great advanced course on Cryptography: https://www.coursera.org/learn/crypto