SIPRNet
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The Secure Internet Protocol Router Network (SIPRNet) is "a system of interconnected
computer network A computer network is a set of computers sharing resources located on or provided by network nodes. The computers use common communication protocols over digital interconnections to communicate with each other. These interconnections are ...
s used by the
U.S. Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national secur ...
and the
U.S. Department of State The United States Department of State (DOS), or State Department, is an executive department of the U.S. federal government responsible for the country's foreign policy and relations. Equivalent to the ministry of foreign affairs of other ...
to transmit
classified information Classified information is material that a government body deems to be sensitive information that must be protected. Access is restricted by law or regulation to particular groups of people with the necessary security clearance and need to know, ...
(up to and including information classified
SECRET Secrecy is the practice of hiding information from certain individuals or groups who do not have the "need to know", perhaps while sharing it with other individuals. That which is kept hidden is known as the secret. Secrecy is often controvers ...
) by packet switching over the 'completely secure' environment". It also provides services such as
hypertext Hypertext is E-text, text displayed on a computer display or other electronic devices with references (hyperlinks) to other text that the reader can immediately access. Hypertext documents are interconnected by hyperlinks, which are typi ...
document access and
electronic mail Electronic mail (email or e-mail) is a method of exchanging messages ("mail") between people using electronic devices. Email was thus conceived as the electronics, electronic (digital media, digital) version of, or counterpart to, mail, ...
. As such, SIPRNet is the DoD's classified version of the civilian
Internet The Internet (or internet) is the global system of interconnected computer networks that uses the Internet protocol suite (TCP/IP) to communicate between networks and devices. It is a '' network of networks'' that consists of private, pub ...
. SIPRNet is the SECRET component of the
Defense Information Systems Network The Defense Information System Network (DISN) has been the United States Department of Defense's enterprise telecommunications network for providing data, video, and voice services for 40 years. The DISN end-to-end infrastructure is composed of ...
. Other components handle communications with other security needs, such as the
NIPRNet The Non-classified Internet Protocol (IP) Router Network (NIPRNet) is an IP network used to exchange unclassified information, including information subject to controls on distribution, among the private network's users. The NIPRNet also provide ...
, which is used for nonsecure communications, and the
Joint Worldwide Intelligence Communications System The Joint Worldwide Intelligence Communication System (JWICS, ) is the United States Department of Defense's secure intranet system that houses top secret and sensitive compartmented information. JWICS superseded the earlier DSNET2 and DSNET3, th ...
(JWICS), which is used for Top Secret communications.


Access

According to the U.S. Department of State Web Development Handbook, domain structure and naming conventions are the same as for the open internet, except for the addition of a
second-level domain In the Domain Name System (DNS) hierarchy, a second-level domain (SLD or 2LD) is a domain that is directly below a top-level domain (TLD). For example, in , is the second-level domain of the TLD. Second-level domains commonly refer to the organ ...
, like, e.g., "sgov" between state and gov: openforum.state.sgov.gov. Files originating from SIPRNet are marked by a header tag "SIPDIS" (SIPrnet DIStribution). A corresponding second-level domain smil.mil exists for DoD users. Access is also available to a "...small pool of trusted allies, including Australia, Canada, the United Kingdom and New Zealand...". This group (including the US) is known as the
Five Eyes The Five Eyes (FVEY) is an intelligence alliance comprising Australia, Canada, New Zealand, the United Kingdom, and the United States. These countries are parties to the multilateral UKUSA Agreement, a treaty for joint cooperation in sig ...
. SIPRNet was one of the networks accessed by
Chelsea Manning Chelsea Elizabeth Manning (born Bradley Edward Manning; December 17, 1987) is an American activist and whistleblower. She is a former United States Army soldier who was convicted by court-martial in July 2013 of violations of the Espionage A ...
, convicted of leaking the video used in
WikiLeaks WikiLeaks () is an international Nonprofit organization, non-profit organisation that published news leaks and classified media provided by anonymous Source (journalism), sources. Julian Assange, an Australian Internet activism, Internet acti ...
' "
Collateral Murder On July 12, 2007, a series of air-to-ground attacks were conducted by a team of two U.S. AH-64 Apache helicopters in Al-Amin al-Thaniyah, New Baghdad, during the Iraqi insurgency which followed the invasion of Iraq. On April 5, 2010, the attacks ...
" release as well as the source of the US diplomatic cables published by WikiLeaks in November 2010.


Alternate names

SIPRNet and
NIPRNet The Non-classified Internet Protocol (IP) Router Network (NIPRNet) is an IP network used to exchange unclassified information, including information subject to controls on distribution, among the private network's users. The NIPRNet also provide ...
are referred to
colloquially Colloquialism (), also called colloquial language, everyday language or general parlance, is the linguistic style used for casual (informal) communication. It is the most common functional style of speech, the idiom normally employed in conversa ...
as ''SIPPERnet'' and ''NIPPERnet'' (or simply ''sipper'' and ''nipper''), respectively.


See also

* CAVNET *
Classified website A variety of networks operating in special security domains handle classified information in the United States or sensitive but unclassified information, while other specialized networks are reserved specifically for unclassified use by the same a ...
*
NIPRNet The Non-classified Internet Protocol (IP) Router Network (NIPRNet) is an IP network used to exchange unclassified information, including information subject to controls on distribution, among the private network's users. The NIPRNet also provide ...
*
RIPR The RIPRNet (Releasable Internet Protocol Router Network) is a TCP/IP based computer network for joint South Korea-US access, analogous to the SIPRNet. Whereas SIPRNet is the de facto SECRET-level TCP/IP network for general use, RIPR is for infor ...
*
Intellipedia Intellipedia is an online system for collaborative data sharing used by the United States Intelligence Community (IC). It was established as a pilot project in late 2005 and formally announced in April 2006. Intellipedia consists of three wi ...
*
Protective distribution system Protection is any measure taken to guard a thing against damage caused by outside forces. Protection can be provided to physical objects, including organisms, to systems, and to intangible things like civil and political rights. Although th ...
*
NATO CRONOS Crisis Response Operations in NATO Operating Systems (CRONOS) is a system of interconnected computer networks used by NATO to transmit classified information. It provides NATO ''Secret'' level operations, with access to NATO intelligence applicatio ...


References


External links


DISA


by the Federation of American Scientists' Intelligence Resource Program
They've Got Learning Locked Down
– article detailing U.S. Coast Guard Academy classroom being first to get access to SIPRNet
BBC Article on SIPRNet
{{DEFAULTSORT:Siprnet Wide area networks Cryptography United States government secrecy Military communications of the United States