"Secsh" was the official Internet Engineering Task Force's (IETF) name for the IETF working group responsible for the SSH2 protocol. The SSH protocol has two generations: SSH, the initial draft protocol dating to 1995, which is now labeled SSH1, and SSH version 2, usually called SSH2, which was first published in 1998.
The core documents for SSH2 were published as RFCs in the first half of 2006 followed by the extension documents. The Secsh IETF working group closed shortly thereafter. Of the significant work items for the working group, only the SFTP protocol specification did not advance to RFC. There is currently no working group addressing the SFTP protocol, nor any ongoing work.
If you are interested in reading the documents, click on one of the links below. The original documents may be found at http://www.ietf.org/index.html in the RFC Pages or Internet Drafts sections.
The following proposed standards describe the main elements of the SSH protocol.