I think Steve posted a while back that those ciphers require special handling and do not work with the enc command yet.
.................................... Erik Tkal Juniper OAC/UAC/Pulse Development From: owner-openssl-us...@openssl.org [mailto:owner-openssl-us...@openssl.org] On Behalf Of e...@mit.edu Sent: Thursday, October 11, 2012 12:19 PM To: openssl-users@openssl.org Subject: id-aes256-GCM command line encrypt+decrypt fail Hello, I am trying to encrypt and decrypt a string using command-line openssl (1.0.1c) with the id-aes256-GCM algorithm, but every time it fails echo -n "bla" | openssl enc -e -id-aes256-GCM -nosalt -a -out t.out openssl enc -d -id-aes256-GCM -nosalt -a -in t.out bad decrypt This is true whether I use manually specified key/IV or password, with or without salt. The same commands work with other algorithms. What am I missing? Thanks Mark