Sziasztok! Ujabb security-s problemam merult fol. Ez a kod siman lefut: KeyFactory keyFactory = KeyFactory.getInstance("DSA"); Ez nem: KeyFactory keyFactory = KeyFactory.getInstance("RSA"); Ezt dobja: java.security.NoSuchAlgorithmException: RSA KeyFactory not available Holott a speci ezt mondja. Key and Parameter Algorithms The algorithm names in this section can be specified when generating an instance of KeyPairGenerator, KeyFactory, AlgorithmParameterGenerator, and AlgorithmParameters. RSA: The RSA encryption algorithm as defined in PKCS#1. DSA: The Digital Signature Algorithm as defined in FIPS PUB 186. 1.3-as javat hasznalok. Mi a megoldas? Elore is koszi a segitseget, Fisha