TinTin++ Mud Client Scripts
The following script by sdb allows you to encrypt and decrypt messages. You need opensll installed for this to work.

This script is written for v2.01.97 and higher

#EVENT {PROGRAM START}
{
     #variable {ssl_key} {mind your own business}
}

#ALIAS {etell %1 %2}
{
     #script {encrypt}{echo "%2" | openssl enc -e -aes-256-cbc -a -A -salt -k "$ssl_key"};
     tell %1 >>$encrypt[1]
}

#ACTION {%1 tells you '>>%2'}
{
     #script {decrypt}{echo "%2" | openssl enc -d -aes-256-cbc -a -A -salt -k "$ssl_key"};
     #showme %1 e-tells you '$decrypt[1]';
     #line gag
}