Overview > klyn.cryptography > Cipher > rsaEncrypt
Version 0.1.2 Overview Index Tree Deprecated
klyn.cryptography.Cipher.rsaEncrypt
method
public static rsaEncrypt(plainText as String, publicKeyPem as String, padding as String = "OAEP", hashAlgorithm as String = "SHA-256", outputEncoding as String = "base64") as String throws CryptoException:
Description

Encrypts text with an RSA public key.

Supported paddings:

  • OAEP (recommended, default)
  • PKCS1

For OAEP, hashAlgorithm controls both the OAEP digest and MGF1 digest.

Parameters
  • plainText Source text interpreted as UTF-8.
  • publicKeyPem PEM-encoded public key.
  • padding RSA encryption padding. Defaults to `OAEP`.
  • hashAlgorithm Hash used by OAEP when applicable.
  • outputEncoding Output encoding: `base64`, `base64url` or `hex`.
Returns

Encoded ciphertext.

Throws
  • CryptoException when encryption fails. ```klyn import klyn.cryptography keys = RSAKeyPairGenerator().generateKeyPair() encrypted = Cipher.rsaEncrypt("hello", keys.publicKeyPem) print(encrypted) ```