Examples
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Short message
hello
About RSA Encrypt
RSA-OAEP is asymmetric encryption: anyone with your public key can encrypt a message that only your private key can decrypt - useful for short secrets like a symmetric key or a small credential, not for encrypting whole files directly.
Paste an SPKI PEM public key and a short plaintext to get RSA-OAEP (SHA-256) ciphertext. For anything larger than a small secret, encrypt the data with AES first and use RSA only to protect that AES key - the standard hybrid-encryption pattern.
FAQ
- What key format?
- SPKI PEM public key (BEGIN PUBLIC KEY).