Encrypt "HELLO"
text = HELLO
Result: Shows p, q, n, φ, e, d and the encryption/decryption process.
RSA Concept Demo
EDUCATIONAL DEMONSTRATION ONLY — This demonstrates RSA with small primes (p=61, q=53) so you can follow the math by hand. Production RSA uses 2048+ bit primes and the Web Crypto API. Clearly distinguishes key generation, encryption, and decryption steps.
Privacy: this tool processes your data entirely in your browser. Nothing you paste or type is sent to the server.
Enter your values and press Calculate — the result appears here.
Worked examples
Frequently asked questions
Why use small primes?
Small primes make the math followable. Production RSA uses primes with 1024+ digits each, making factoring n computationally infeasible.
What is modular exponentiation?
Computing base^exponent mod modulus efficiently. This is the core operation in RSA — easy to compute, hard to reverse without the private key.
Can I use this for real encryption?
Absolutely not. Use the Web Crypto API or OpenSSL for real RSA. This demo uses tiny numbers that anyone can factor.
📚 Learn More
Cybersecurity
What Is LM Studio?
LM Studio is a desktop application that makes local AI as easy as downloading an app. Browse models…
CybersecurityWhat Is Ollama?
Ollama is the easiest way to run local AI models on your computer. One command downloads a model. A…
CybersecurityWhat Is Local AI?
Local AI means running AI models on your own computer — no internet, no API costs, no data leaving …
CybersecurityThe Shift: From Implementation to Judgment
Key Takeaway --> 🎯 Key Takeaway AI agents change how you implement software — not what you need t…
CybersecurityWhy RAG Exists: The Hallucination Problem
RAG combines document retrieval with LLM generation. Instead of asking the model to "remember" ever…
CybersecurityWhat Is Prompt Engineering?
Key Takeaway Prompt Engineering is the skill of communicating effectively with AI models. It is not…
🔧 Related Tools
RSA Key Pair Generator
Generate RSA-2048 or RSA-4096 key pairs for encryption or digital signatures.
Try it now →RSA-OAEP Encryption
Encrypt plaintext with RSA-OAEP public key.
Try it now →RSA-PSS Signature
Create a digital signature with RSA-PSS.
Try it now →AES-256-GCM Decrypt
Decrypt AES-256-GCM ciphertext with authentication verification.
Try it now →💬 Discuss on BestWordz Community
Join the conversation about Cybersecurity, rsa concept, public key cryptography on the BestWordz Community forum.
Visit Forum →💬 Discuss RSA Concept Demo
Have questions about RSA Concept Demo? Join the BestWordz Community.
Copied!