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RSA Encryption/Decryption

Generate RSA key pairs and encrypt/decrypt messages using public key cryptography. All processing happens in your browser.

Generate RSA Key Pair

Encrypt/Decrypt Message

About RSA Encryption

RSA is an asymmetric cryptographic algorithm that uses a pair of keys (public and private) for encryption and decryption. It's widely used for secure data transmission and digital signatures.

Important Notes:
  • Key Storage: Never share your private key with anyone
  • Message Size: RSA can only encrypt small messages (max ~200 bytes for 2048-bit key)
  • For Large Data: Use hybrid encryption (RSA for key exchange, AES for data)
  • Security: Use at least 2048-bit keys for production use

Related Utils

AES Certificate Decoder Text Cipher Fernet Encryption

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