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Dropbear (software)

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This is an old revision of this page, as edited by Tianjiao (talk | contribs) at 09:01, 28 January 2012 (See also: lsh add, which is also a SSH-2 server and client.). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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Dropbear
Developer(s)Matt Johnston
Stable release
2011.54-0.1[1] / November 8, 2011 (2011-11-08)
Repository
Operating systemCross-platform
TypeRemote access
LicenseMIT license
Websitematt.ucc.asn.au/dropbear/dropbear.html

Dropbear is a software package written by Matt Johnston that provides a Secure Shell-compatible server and client. It is designed as a replacement for standard OpenSSH for environments with low memory and processor resources, such as embedded systems.

Technology

Dropbear implements version 2 of the Secure Shell (SSH) protocol.[2]

The cryptographic algorithms are implemented using third party cryptographic libraries included internally in the Dropbear distribution. It derives some parts from OpenSSH to handle BSD-style pseudo terminals.[3]

Features

Dropbear implements the complete SSH version 2 protocol in both the client and the server. It does not support SSH version 1 backwards-compatibility to save space and resources, and to avoid the inherent security vulnerabilities in SSH version 1. SCP is also implemented. SFTP support relies on a binary file which can be provided by OpenSSH or similar programs.

See also

References

  1. ^ http://matt.ucc.asn.au/dropbear/
  2. ^ "Ubuntu Manpage: dropbear - lightweight SSH2 server". Ubuntu.com web site. Canonical, Inc. Retrieved 20 June 2011.
  3. ^ https://matt.ucc.asn.au/dropbear/dropbear.html Dropbear implementation details