JDBC ENCCSM problem

Hi, I have a problem with JDBC and ENCCSM (only with aes(xxx). First i explain my environment: Informix server: * IBM Informix Dynamic Server Version 14.10.FC1 (linux) (Test server) * concsm.cfg: net_sec("/aplicacions/informix/lib/csm/iencs11a.so", "cipher[aes256:cbc], mac[levels:<high>,files:</aplicacions/informix/etc/keyData0.dat,/aplicacions/inf ormix/etc/keyData1.dat>], switch[cipher:30,key:10]") Informix Client: * IBM Informix JDBC Driver Version 4.10.JC7DE * java version "1.8.0_161" Java(TM) SE Runtime Environment (build 1.8.0_161-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.161-b12, mixed mode) * Cipher : aes256 * URL: String dataUrl = "jdbc:informix-sqli://<my_server>:<my port>/<my database>:INFORMIXSERVER=<my informix server>;csm=(classname=com.informix.jdbc.Crypto,cipher[aes256:cbc],mac[levels:<h igh>,files:<keyData0.dat,keyData1.dat>],switch[cipher:30,key:10]);SQLIDEBUG=trac e"; Result at client side: * FAILED: Failed to connect java.sql.SQLException: com.informix.csm.IfxCsmException: Unknown cipher/mode requested Result at server side: 07/12/19 11:04:19 file cssstubs.c, line 762, session 68, thread 87, CSM-VP bad call argument. 07/12/19 11:04:19 listener-thread@soc_be.c:3130: err = -14565: oserr = 0: errstr = : CSS: error reading data. 07/12/19 11:04:19 listener-thread@soc_be.c:3411: err = -25582: oserr = 0: errstr = : Network connection is broken. This woks fine with dbaccess (client and server are the same machine) and with informix CSDK 4.10 (windows) (aes256) When I change cipher from aes256 to bf3 the communication from jdbc to server worke fine. Only fails with aes(xxx) Thanks,