Platform Server SSL/TLS Support

Platform Server supports two different modes of SSL/TLS communication: TLS mode and TLS tunnel mode.

• TLS Mode: Platform Server initiates a TLS connection with the target Platform Server. Certificates are passed between the client and server and the certificates are validated. A symmetric encryption key is transmitted between the client and the server. The SSL connection is then terminated. Data is encrypted using the symmetric key passed in the TLS session. Sequence numbers and a message digest are added to each packet of data transmitted and are validated by the recipient. TLS mode is supported for all versions of Platform Server, Internet Server, and Command Center.
• TLS Tunnel Mode: Platform Server initiates a TLS connection with the target Platform Server. Certificates are passed between the client and server and the certificates are validated. Transfer data is sent over the TLS session. All data is encrypted using the cipher selected during TLS negotiation. Message digests and sequence numbers are added by the internal TLS protocol. TLS mode is supported for Platform Server V8 and above and for Internet Server and Command Center V8 and above. If you are using Platform Server to communicate over public lines, the recommendation is to use TLS tunnel mode.

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