Probleme mit SSH-Verbindung? "Algorithm negotiation fail"?
Guckst du hier: JSch supports aes128-cbc,aes192-cbc,aes256-cbc,aes128-ctr,aes192-ctr, aes256-ctr but you require AES support in your J2SE to choose some of them. If you are using Sun's J2SE, J2SE 1.4.2 or later is required. And then, J2SE 1.4.2(or later) does not support aes256 by the default, because of 'import control restrictions of some countries'. We have confirmed that by applying "Java Cryptography Extension (JCE) Unlimited Strength Jurisdiction Policy Files 1.4.2" ... we can enjoy 'aes256-cbc,aes256-ctr'.
JCE für Java 6,7 und 8: