Public Key Encrypt/Decrypt Tool
Generate keys, encrypt, and decrypt messages using RSA encryption.
About RSA Keys
RSA encryption uses two keys: a public key for encryption and a private key for decryption. This demonstration creates 512-bit keys for speed (production systems typically use 2048+ bit keys).
About Encryption
Paste a public key and enter a message. The encryption will convert your text to a format that can only be decrypted with the corresponding private key.
About Decryption
Paste your private key and an encrypted message to reveal the original content. Only the holder of the private key can decrypt messages encrypted with the matching public key.
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Start Free TrialHow to Use the Public Key Encryption/Decryption Demo Tool
This tool demonstrates the core principles of asymmetric cryptography through a simple three-step process:
- Generate Keys: Create a new key pair. The public key can be shared, while the private key must be kept secret.
- Encrypt Message: Use a public key to encrypt a message that can only be read using the matching private key.
- Decrypt Message: Use a private key to decrypt messages that were encrypted with the matching public key.
Why Public Key Encryption Matters to Developers
Asymmetric encryption solves fundamental security challenges in distributed systems and is the backbone of secure communications on the internet. It enables secure connections without requiring prior key exchange.
Use Cases in Development Workflows
- Secure Communications: Establishing secure channels between clients and servers via HTTPS.
- Secure Data Storage: Encrypting sensitive data in a way that only authorized users can decrypt.
- Digital Signatures: Verifying the authenticity and integrity of code, documents, or messages.
- API Security: Securing API tokens and credentials in client-server communications.
Connection to Cloud Hosting
Modern cloud applications rely heavily on public key cryptography for secure connections, data protection, and authentication. Kloudbean's hosting infrastructure employs these encryption principles to keep your applications and data secure.
Frequently Asked Questions
Q. Is this encryption tool secure for production use?
No, this demo uses shorter keys for demonstration purposes. For production, use established cryptography libraries with proper key sizes (2048+ bits).
Q. What encryption algorithm does this demo use?
This demo uses RSA, a widely-used asymmetric encryption algorithm. It generates public-private key pairs for encrypting/decrypting data.
Q. Why is there a message size limitation?
RSA can only encrypt data up to a certain size (based on key length). For larger messages, production systems use hybrid encryption (combining symmetric and asymmetric methods).
Q. Is my data safe when using this tool?
Yes, all cryptographic operations happen entirely in your browser. No data is sent to any server.
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