b3270 tls Indication

### tls Indication

Change in TLS state.

Attribute | Always present? | Purpose
--- | --- | ---
secure | yes | true or false, connection is secure
verified | no | true or false, host certificate is verified
session | no | session details
host-cert | no | host certificate details

The verified, session and host-cert attributes are present only if secure is true.

Example:

    <tls secure="true" verified="false" session="Version: TLSv1.2&#10;Cipher: AES256-SHA" host-cert="Public key: 2048 bit RSA&10;Subject: C = US, ST = Michigan, L = Southfield, O = "ATT Services, Inc.", OU = zOS, CN = mvsap6-tcpipin.ims.att.com&#10;Issuer: C = US, O = Symantec Corporation, OU = Symantec Trust Network, CN = Symantec Class 3 Secure Server CA - G4&#10;Alternate DNS names: mvsap6-tcpipin.ims.att.com&#10;CA 1 Public key: 2048 bit RSA&#10;CA 1 Subject: C = US, O = Symantec Corporation, OU = Symantec Trust Network, CN = Symantec Class 3 Secure Server CA - G4&#10;CA 1 Issuer: C = US, O = "VeriSign, Inc.", OU = VeriSign Trust Network, OU = "(c) 2006 VeriSign, Inc. - For authorized use only", CN = VeriSign Class 3 Public Primary Certification Authority - G5"/>

b3270: Protocol - Operations - Indications