Interception Capabilities 2000
![]()
Contents
High frequency radio interception
Space interception of inter-city networks
Sugar Grove, Virginia : COMSAT interception at ECHELON site
Sabana Seca, Puerto Rico and Leitrim, Canada : COMSAT interception sites
Waihopai, New Zealand : Intelsat interception
at ECHELON site
Law enforcement communications interception
- policy development in Europe
Disseminating economic intelligence
The use of Comint economic intelligence product
Airbus Industrie and Saudi Arabia
Communications intelligence equipment
Filtering, data processing, and facsimile analysis
Traffic analysis, keyword recognition, text retrieval, and topic analysis
Speaker identification and other voice message
selection techniques
Summary
2. Globally, about 15-20 billion Euro is expended annually on Comint and related activities. The largest component of this expenditure is incurred by the major English-speaking nations of the UKUSA alliance.(1) This report describes how Comint organisations have for more than 80 years made arrangements to obtain access to much of the world's international communications. These include the unauthorised interception of commercial satellites, of long distance communications from space, of undersea cables using submarines, and of the Internet. In excess of 120 satellite systems are currently in simultaneous operation collecting intelligence (section 2).
3. The highly automated UKUSA system for processing Comint, often known as ECHELON, has been widely discussed within Europe following a 1997 STOA report.(2) That report summarised information from the only two primary sources then available on ECHELON.(3) This report provides original new documentary and other evidence about the ECHELON system and its involvement in the interception of communication satellites (section 3). A technical annexe give a supplementary, detailed description of Comint processing methods.
4. Comint information derived from the interception of international communications has long been routinely used to obtain sensitive data concerning individuals, governments, trade and international organisations. This report sets out the organisational and reporting frameworks within which economically sensitive information is collected and disseminated, summarising examples where European commercial organisations have been the subject of surveillance (section 4).
5. This report identifies a previously unknown international organisation - "ILETS" - which has, without parliamentary or public discussion or awareness, put in place contentious plans to require manufacturers and operators of new communications systems to build in monitoring capacity for use by national security or law enforcement organisations (section 5).
6. Comint organisations now perceive that the technical difficulties of collecting communications are increasing, and that future production may be costlier and more limited than at present. The perception of such difficulties may provide a useful basis for policy options aimed at protective measures concerning economic information and effective encryption (section 6).
7. Key findings concerning the state of the art in Comint include :
What is communications intelligence?
2. Comint has shadowed the development of extensive high capacity new civil telecommunications systems, and has in consequence become a large-scale industrial activity employing many skilled workers and utilising exceptionally high degrees of automation.
3. The targets of Comint operations are varied. The most traditional Comint targets are military messages and diplomatic communications between national capitals and missions abroad. Since the 1960s, following the growth of world trade, the collection of economic intelligence and information about scientific and technical developments has been an increasingly important aspect of Comint. More recent targets include narcotics trafficking, money laundering, terrorism and organised crime.
4. Whenever access to international communications channels is obtained for one purpose, access to every other type of communications carried on the same channels is automatic, subject only to the tasking requirements of agencies. Thus, for example, NSA and its British counterpart GCHQ, used Comint collected primarily for other purposes to provide data about domestic political opposition figures in the United States between 1967 and 1975.
6. Although UKUSA Comint agency staffs and budgets have shrunk following the end of the cold war, they have reaffirmed their requirements for access to all the world's communications. Addressing NSA staff on his departure in 1992, then NSA director Admiral William Studeman described how "the demands for increased global access are growing". The "business area" of "global access" was, he said, one of "two, hopefully strong, legs upon which NSA must stand" in the next century.(7)
10. Once targets have been selected, specific existing or new collection capabilities may be tasked, based on the type of information required, the susceptibility of the targeted activity to collection, and the likely effectiveness of collection.
12. Collection follows interception, but is a distinct activity in that many types of signals may be intercepted but will receive no further processing save perhaps technical searches to verify that communications patterns remain unchanged. For example, a satellite interception station tasked to study a newly launched communications satellite will set up an antenna to intercept all that the satellite sends to the ground. Once a survey has established which parts of the satellite's signals carry, say, television or communications of no interest, these signals will not progress further within the system.
13. Collection includes both acquiring information by interception and passing information of interest downstream for processing and production. Because of the high information rates used in many modern networks, and the complexity of the signals within them, it is now common for high speed recorders or "snapshot" memories temporarily to hold large quantities of data while processing takes place. Modern collection activities use secure, rapid communications to pass data via global networks to human analysts who may be a continent away. Selecting messages for collection and processing is in most cases automated, involving large on-line databanks holding information about targets of interest.
15. At an early stage, if it is not inherent in the selection of the message or conversation, each intercepted signal or channel will be described in standard "case notation". Case notation first identifies the countries whose communications have been intercepted, usually by two letters. A third letter designates the general class of communications: C for commercial carrier intercepts, D for diplomatic messages, P for police channels, etc. A fourth letter designates the type of communications system (such as S for multi-channel). Numbers then designate particular links or networks. Thus for example, during the 1980s NSA intercepted and processed traffic designated as "FRD" (French diplomatic) from Chicksands, England, while the British Comint agency GCHQ deciphered "ITD" (Italian diplomatic) messages at its Cheltenham headquarters. (9)
16. Processing may also involve translation or "gisting" (replacing a verbatim text with the sense or main points of a communication). Translation and gisting can to some degree be automated.
18. The nature of dissemination is highly significant to questions of how Comint is exploited to obtain economic advantage. Comint activities everywhere are highly classified because, it is argued, knowledge of the success of interception would be likely to lead targets to change their communications methods to defeat future interception. Within the UKUSA system, the dissemination of Comint reports is limited to individuals holding high-level security "SCI" clearances.(10) Further, because only cleared officials can see Comint reports, only they can set requirements and thus control tasking. Officials of commercial companies normally neither have clearance nor routine access to Comint, and may therefore only benefit from commercially relevant Comint information to the extent that senior, cleared government officials permit. The ways in which this takes place is described in Section 5, below.
19. Dissemination is further restricted within the UKUSA organisation by national and international rules generally stipulating that the Sigint agencies of each nation may not normally collect or (if inadvertently collected) record or disseminate information about citizens of, or companies registered in, any other UKUSA nation. Citizens and companies are collectively known as "legal persons". The opposite procedure is followed if the person concerned has been targeted by their national Comint organisation.
20. For example, Hager has described
(11)
how New Zealand officials were instructed to remove the names of identifiable
UKUSA citizens or companies from their reports, inserting instead words
such as "a Canadian citizen" or "a US company". British Comint staff have
described following similar procedures in respect of US citizens following
the introduction of legislation to limit NSA's domestic intelligence activities
in 1978.(12)
The Australian government says that "DSD and its counterparts operate internal
procedures to satisfy themselves that their national interests and policies
are respected by the others ... the Rules [on Sigint and Australian persons]
prohibit the dissemination of information relating to Australian persons
gained accidentally during the course of routine collection of foreign
communications; or the reporting or recording of the names of Australian
persons mentioned in foreign communications".(13)
The corollary is also true; UKUSA nations place no restrictions on intelligence
gathering affecting either citizens or companies of any non-UKUSA nation,
including member states of the European Union (except the UK).
International Leased Carrier
(ILC) communications
26. The first geostationary Intelsat satellites were orbited in 1967. Satellite technology developed rapidly. The fourth generation of Intelsat satellites, introduced in 1971, provided capacity for 4,000 simulataneous telephone channels and were capable of handling all forms of communications simultaneously -telephone, telex, telegraph, television, data and facsimile. In 1999, Intelsat operated 19 satellites of its 5th to 8th generations. The latest generation can handle the equivalent to 90,000 simultaneous calls.
![]() |
![]() |
|
|
|
32. The most advanced type of HF monitoring system deployed during this period for Comint purposes was a large circular antenna array known as AN/FLR-9. AN/FLR-9 antennae are more than 400 metres in diameter. They can simultaneously intercept and determine the bearing of signals from as many directions and on as many frequencies as may be desired. In 1964, AN/FLR-9 receiving systems were installed at San Vito dei Normanni, Italy; Chicksands, England, and Karamursel, Turkey.
33. In August 1966, NSA transferred ILC collection activities from its Scottish site at Kirknewton, to Menwith Hill in England. Ten years later, this activity was again transferred, to Chicksands. Although the primary function of the Chicksands site was to intercept Soviet and Warsaw Pact air force communications, it was also tasked to collect ILC and "NDC" (Non-US Diplomatic Communications). Prominent among such tasks was the collection of FRD traffic (i.e., French diplomatic communications). Although most personnel at Chicksands were members of the US Air Force, diplomatic and ILC interception was handled by civilian NSA employees in a unit called DODJOCC.(17)
34. During the 1970s, British Comint units on Cyprus were tasked to collect HF communications of allied NATO nations, including Greece and Turkey. The interception took place at a British army unit at Ayios Nikolaos, eastern Cyprus.(18) In the United States in 1975, investigations by a US Congressional Committee revealed that NSA was collecting diplomatic messages sent to and from Washington from an army Comint site at Vint Hill Farms, Virginia. The targets of this station included the United Kingdom.(19)
36. The first US Comint satellite, CANYON, was launched In August 1968, followed soon by a second. The satellites were controlled from a ground station at Bad Aibling, Germany. In order to provide permanent coverage of selected targets, CANYON satellites were placed close to geostationary orbits. However, the orbits were not exact, causing the satellites to change position and obtain more data on ground targets.(20) Seven CANYON satellites were launched between 1968 and 1977.
37. CANYON's target was the Soviet Union. Major Soviet communications links extended for thousands of miles, much of it over Siberia, where permafrost restricted the reliable use of underground cables. Geographical circumstances thus favoured NSA by making Soviet internal communications links highly accessible. The satellites performed better than expected, so the project was extended.
38. The success of CANYON led to the design and deployment of a new class of Comint satellites, CHALET. The ground station chosen for the CHALET series was Menwith Hill, England. Under NSA project P-285, US companies were contracted to install and assist in operating the satellite control system and downlinks (RUNWAY) and ground processing system (SILKWORTH). The first two CHALET satellites were launched in June 1978 and October 1979. After the name of the first satellite appeared in the US press, they were renamed VORTEX. In 1982, NSA obtained approval for expanded "new mission requirements" and were given funds and facilities to operate four VORTEX satellites simultaneously. A new 5,000m2 operations centre (STEEPLEBUSH) was constructed to house processing equipment. When the name VORTEX was published in 1987, the satellites were renamed MERCURY.(21)
39. The expanded mission given to Menwith Hill after 1985 included MERCURY collection from the Middle East. The station received an award for support to US naval operations in the Persian Gulf from 1987 to 1988. In 1991, a further award was given for support of the Iraqi war operations, Desert Storm and Desert Shield.(22) Menwith Hill is now the major US site for Comint collection against its major ally, Israel. Its staff includes linguists trained in Hebrew, Arabic and Farsi as well as European languages. Menwith Hill has recently been expanded to include ground links for a new network of Sigint satellites launched in 1994 and 1995 (RUTLEY). The name of the new class of satellites remains unknown.
41. A third class of satellite, known
first as JUMPSEAT and latterly as TRUMPET, operates in highly elliptical
near-polar orbits enabling them to "hover" for long period over high northern
latitudes. They enable the United States to collect signals from transmitters
in high northern latitudes poorly covered by MERCURY or ORION, and also
to intercept signals sent to Russian communications satellites in the same
orbits.
![]() |
![]() |
|
|
|
|
|
43. It follows that, within constraints imposed by budgetary limitation and tasking priorities, the United States can if it chooses direct space collection systems to intercept mobile communications signals and microwave city-to-city traffic anywhere on the planet. The geographical and processing difficulties of collecting messages simultaneously from all parts of the globe suggest strongly that the tasking of these satellites will be directed towards the highest priority national and military targets. Thus, although European communications passing on inter-city microwave routes can be collected, it is likely that they are normally ignored. But it is very highly probable that communications to or from Europe and which pass through the microwave communications networks of Middle Eastern states are collected and processed.
44. No other nation (including the former Soviet Union) has deployed satellites comparable to CANYON, RHYOLITE, or their successors. Both Britain (project ZIRCON) and France (project ZENON) have attempted to do so, but neither persevered. After 1988 the British government purchased capacity on the US VORTEX (now MERCURY) constellation to use for unilateral national purposes.(24) A senior UK Liaison Officer and staff from GCHQ work at Menwith Hill NSA station and assist in tasking and operating the satellites.
46. ILC interception capability against western-run communications satellites remained at this level until the late 1970s, when a second US site at Sugar Grove, West Virginia was added to the network. By 1980, its three satellite antenna had been reassigned to the US Naval Security Group and were used for COMSAT interception. Large-scale expansion of the ILC satellite interception system took place between 1985 and 1995, in conjunction with the enlargement of the ECHELON processing system (section 3). New stations were constructed in the United States (Sabana Seca, Puerto Rico), Canada (Leitrim, Ontario), Australia (Kojarena, Western Australia) and New Zealand (Waihopai, South Island). Capacity at Yakima, Morwenstow and Sugar Grove was expanded, and continues to expand.
Based on a simple count of the number
of antennae currently installed at each COMSAT interception or satellite
SIGINT station, it appears that the UKUSA nations are between them currently
operating at least 120 satellite based collection systems. The approximate
number of antennae in each category are:
| - Tasked on western commercial communications satellites (ILC) | 40 |
| - Controlling space based signals intelligence satellites | 30 |
| - Currently or formerly tasked on Soviet communications satellites | 50 |
Systems in the third category may have been reallocated to ILC tasks since the end of the cold war.(25)
47. Other nations increasingly collect
Comint from satellites. Russia's FAPSI operates large ground collection
sites at Lourdes, Cuba and at Cam Ranh Bay, Vietnam.(26)
Germany's BND and France's DGSE are alleged to collaborate in the operation
of a COMSAT collection site at Kourou, Guyana, targeted on "American and
South American satellite communications". DGSE is also said to have COMSAT
collection sites at Domme (Dordogne, France), in New Caledonia, and in
the United Arab Emirates.(27)
The Swiss intelligence service has recently announced a plan for two COMSAT
interception stations.(28)
![]() |
![]() |
|
|
|
49. In October 1971, this security was shown not to exist. A US submarine, Halibut, visited the Sea of Okhotsk off the eastern USSR and recorded communications passing on a military cable to the Khamchatka Peninsula. Halibut was equipped with a deep diving chamber, fully in view on the submarine's stern. The chamber was described by the US Navy as a "deep submergence rescue vehicle". The truth was that the "rescue vehicle" was welded immovably to the submarine. Once submerged, deep-sea divers exited the submarine and wrapped tapping coils around the cable. Having proven the principle, USS Halibut returned in 1972 and laid a high capacity recording pod next to the cable. The technique involved no physical damage and was unlikely to have been readily detectable.(29)
50. The Okhotsk cable tapping operation continued for ten years, involving routine trips by three different specially equipped submarines to collect old pods and lay new ones; sometimes, more than one pod at a time. New targets were added in 1979. That summer, a newly converted submarine called USS Parche travelled from San Francisco under the North Pole to the Barents Sea, and laid a new cable tap near Murmansk. Its crew received a presidential citation for their achievement. The Okhotsk cable tap ended in 1982, after its location was compromised by a former NSA employee who sold information about the tap, codenamed IVY BELLS, to the Soviet Union. One of the IVY BELLS pods is now on display in the Moscow museum of the former KGB. The cable tap in the Barents Sea continued in operation, undetected, until tapping stopped in 1992.
51. During 1985, cable-tapping operations were extended into the Mediterranean, to intercept cables linking Europe to West Africa. (30) After the cold war ended, the USS Parche was refitted with an extended section to accommodate larger cable tapping equipment and pods. Cable taps could be laid by remote control, using drones. USS Parche continues in operation to the present day, but the precise targets of its missions remain unknown. The Clinton administration evidently places high value on its achievements, Every year from 1994 to 1997, the submarine crew has been highly commended.(31) Likely targets may include the Middle East, Mediterranean, eastern Asia, and South America. The United States is the only naval power known to have deployed deep-sea technology for this purpose.
52. Miniaturised inductive taps recorders
have also been used to intercept underground cables.(32)
Optical fibre cables, however, do not leak radio frequency signals and
cannot be tapped using inductive loops. NSA and other Comint agencies have
spent a great deal of money on research into tapping optical fibres, reportedly
with little success. But long distance optical fibre cables are not invulnerable.
The key means of access is by tampering with optoelectronic "repeaters"
which boost signal levels over long distances. It follows that any submarine
cable system using submerged optoelectronic repeaters cannot be considered
secure from interception and communications intelligence activity.
![]() |
![]() |
|
|
|
54. Since the early 1990s, fast and sophisticated Comint systems have been developed to collect, filter and analyse the forms of fast digital communications used by the Internet. Because most of the world's Internet capacity lies within the United States or connects to the United States, many communications in "cyberspace" will pass through intermediate sites within the United States. Communications from Europe to and from Asia, Oceania, Africa or South America normally travel via the United States.
55. Routes taken by Internet "packets" depend on the origin and destination of the data, the systems through which they enter and leaves the Internet, and a myriad of other factors including time of day. Thus, routers within the western United States are at their most idle at the time when central European traffic is reaching peak usage. It is thus possible (and reasonable) for messages travelling a short distance in a busy European network to travel instead, for example, via Internet exchanges in California. It follows that a large proportion of international communications on the Internet will by the nature of the system pass through the United States and thus be readily accessible to NSA.
56.Standard Internet messages are composed of packets called "datagrams" . Datagrams include numbers representing both their origin and their destination, called "IP addresses". The addresses are unique to each computer connected to the Internet. They are inherently easy to identify as to country and site of origin and destination. Handling, sorting and routing millions of such packets each second is fundamental to the operation of major Internet centres. The same process facilitates extraction of traffic for Comint purposes.
57. Internet traffic can be accessed either from international communications links entering the United States, or when it reaches major Internet exchanges. Both methods have advantages. Access to communications systems is likely to be remain clandestine - whereas access to Internet exchanges might be more detectable but provides easier access to more data and simpler sorting methods. Although the quantities of data involved are immense, NSA is normally legally restricted to looking only at communications that start or finish in a foreign country. Unless special warrants are issued, all other data should normally be thrown away by machine before it can be examined or recorded.
58. Much other Internet traffic (whether foreign to the US or not) is of trivial intelligence interest or can be handled in other ways. For example, messages sent to "Usenet" discussion groups amounts to about 15 Gigabytes (GB) of data per day; the rough equivalent of 10,000 books. All this data is broadcast to anyone wanting (or willing) to have it. Like other Internet users, intelligence agencies have open source access to this data and store and analyse it. In the UK, the Defence Evaluation and Research Agency maintains a 1 Terabyte database containing the previous 90 days of Usenet messages.(35) A similar service, called "Deja News", is available to users of the World Wide Web (WWW). Messages for Usenet are readily distinguishable. It is pointless to collect them clandestinely.
59. Similar considerations affect the World Wide Web, most of which is openly accessible. Web sites are examined continuously by "search engines" which generate catalogues of their contents. "Alta Vista" and "Hotbot" are prominent public sites of this kind. NSA similarly employs computer "bots" (robots) to collect data of interest. For example, a New York web site known as JYA.COM (http://www.jya.com/crypto.htm) offers extensive public information on Sigint, Comint and cryptography. The site is frequently updated. Records of access to the site show that every morning it is visited by a "bot" from NSA's National Computer Security Centre, which looks for new files and makes copies of any that it finds.(36)
60. It follows that foreign Internet
traffic of communications intelligence interest - consisting of e-mail,
file transfers, "virtual private networks" operated over the internet,
and some other messages - will form at best a few per cent of the traffic
on most US Internet exchanges or backbone links. According to a former
employee, NSA had by 1995 installed "sniffer" software to collect such
traffic at nine major Internet exchange points (IXPs).(37)
The first two such sites identified, FIX East and FIX West, are operated
by US government agencies. They are closely linked to nearby commercial
locations, MAE East and MAE West (see table). Three other sites listed
were Network Access Points originally developed by the US National Science
Foundation to provide the US Internet with its initial "backbone".
| Internet site | Location | Operator | Designation |
| FIX East | College Park, Maryland | US government | Federal Information Exchange |
| FIX West | Mountain View, California | US government | Federal Information Exchange |
| MAE East | Washington, DC | MCI | Metropolitan Area Ethernet |
| New York NAP | Pennsauken, New Jersey | Sprintlink | Network Access Point |
| SWAB | Washington, DC | PSInet / Bell Atlantic | SMDS Washington Area Bypass |
| Chicago NAP | Chicago, Illinois | Ameritech / Bellcorp | Network Access Point |
| San Francisco NAP | San Francisco, California | Pacific Bell | Network Access Point |
| MAE West | San Jose, California | MCI | Metropolitan Area Ethernet |
| CIX | Santa Clara California | CIX | Commercial Internet Exchange |
63. A joint NSA/CIA "Special Collection Service" manufactures equipment and trains personnel for covert collection activities One major device is a suitcase-sized computer processing system. ORATORY. ORATORY is in effect a miniaturised version of the Dictionary computers described in the next section, capable of selecting non-verbal communications of interest from a wide range of inputs, according to pre-programmed selection criteria. One major NSA supplier ("The IDEAS Operation") now offers micro-miniature digital receivers which can simultaneously process Sigint data from 8 independent channels. This radio receiver is the size of a credit card. It fits in a standard laptop computer. IDEAS claim, reasonably, that their tiny card "performs functions that would have taken a rack full of equipment not long ago".
The "Watch List"
66. After the public revelation of the SHAMROCK interception programme, NSA Director Lt General Lew Allen described how NSA used "'watch lists" as an aid to watch for foreign activity of reportable intelligence interest".(41) "We have been providing details ... of any messages contained in the foreign communications we intercept that bear on named individuals or organisations. These compilations of names are commonly referred to as 'Watch Lists'", he said.(42) Until the 1970s, Watch List processing was manual. Analysts examined intercepted ILC communications, reporting, "gisting" or analysing those which appeared to cover names or topics on the Watch List.
New information about ECHELON sites and systems
67. It now appears that the system identified as ECHELON has been in existence for more than 20 years. The need for such a system was foreseen in the late 1960s, when NSA and GCHQ planned ILC satellite interception stations at Mowenstow and Yakima. It was expected that the quantity of messages intercepted from the new satellites would be too great for individual examination. According to former NSA staff, the first ECHELON computers automated Comint processing at these sites.(43)
68. NSA and CIA then discovered that Sigint collection from space was more effective than had been anticipated, resulting in accumulations of recordings that outstripped the available supply of linguists and analysts. Documents show that when the SILKWORTH processing systems was installed at Menwith Hill for the new satellites, it was supported by ECHELON 2 and other databanks (see illustration).
69. By the mid 1980s, communications intercepted at these major stations were heavily sifted, with a wide variety of specifications available for non-verbal traffic. Extensive further automation was planned in the mid 1980s as NSA Project P-415. Implementation of this project completed the automation of the previous Watch List activity. From 1987 onwards, staff from international Comint agencies travelled to the US to attended training courses for the new computer systems.
70. Project P-415/ECHELON made heavy use of NSA and GCHQ's global Internet-like communication network to enable remote intelligence customers to task computers at each collection site, and receive the results automatically. The key component of the system are local "Dictionary" computers, which store an extensive database on specified targets, including names, topics of interest, addresses, telephone numbers and other selection criteria. Incoming messages are compared to these criteria; if a match is found, the raw intelligence is forwarded automatically. Dictionary computers are tasked with many thousands of different collection requirements, described as "numbers" (four digit codes).
71. Tasking and receiving intelligence
from the Dictionaries involves processes familiar to anyone who has used
the Internet. Dictionary sorting and selection can be compared to using
search engines, which select web pages containing key words or terms and
specifying relationships. The forwarding function of the Dictionary computers
may be compared to e-mail. When requested, the system will provide lists
of communications matching each criterion for review, analysis, "gisting"
or forwarding. An important point about the new system is that before ECHELON,
different countries and different stations knew what was being intercepted
and to whom it was sent. Now, all but a fraction of the messages selected
by Dictionary computers at remote sites are forwarded to NSA or other customers
without being read locally.
![]() |
![]() |
|
|
Ocean regional communications satellites |
74. An upgraded system called TIMBERLINE II, was installed at Sugar Grove in the summer of 1990. At the same time, according to official US documents, an "ECHELON training department" was established.(47) With training complete, the task of the station in 1991 became "to maintain and operate an ECHELON site".(48)
75. The US Air Force has publicly identified the intelligence activity at Sugar Grove: its "mission is to direct satellite communications equipment [in support of] consumers of COMSAT information ... This is achieved by providing a trained cadre of collection system operators, analysts and managers".(49) In 1990, satellite photographs showed that there were 4 satellite antennae at Sugar Grove. By November 1998, ground inspection revealed that this had expanded to a group of 9.
77. Canadian Defence Forces have published details about staff functions at the Leitrim field station of the Canadian Sigint agency CSE. The station, near Ottawa, Ontario has four satellite terminals, erected since 1984. The staff roster includes seven Communications Satellite Analysts, Supervisors and Instructors.(51)
78. In a publicly available resume, a former Communication Satellite Analyst employed at Leitrim describes his job as having required expertise in the "operation and analysis of numerous Comsat computer systems and associated subsystems ... [utilising] computer assisted analysis systems ... [and] a broad range of sophisticated electronic equipment to intercept and study foreign communications and electronic transmissions.(52) Financial reports from CSE also indicate that in 1995/96, the agency planned payments of $7 million to ECHELON and $6 million to Cray (computers). There were no further details about ECHELON.(53)
81. Fax messages and computer data (from modems) are given priority in processing because of the ease with which they are understood and analysed. The main method of filtering and analysing non-verbal traffic, the Dictionary computers, utilise traditional information retrieval techniques, including keywords. Fast special purpose chips enable vast quantities of data to be processed in this way. The newest technique is "topic spotting". The processing of telephone calls is mainly limited to identifying call-related information, and traffic analysis. Effective voice "wordspotting" systems do not exist are not in use, despite reports to the contrary. But "voiceprint" type speaker identification systems have been in use since at least 1995. The use of strong cryptography is slowly impinging on Comint agencies' capabilities. This difficulty for Comint agencies has been offset by covert and overt activities which have subverted the effectiveness of cryptographic systems supplied from and/or used in Europe.
82. The conclusions drawn in the annexe
are that Comint equipment currently available has the capability, as tasked,
to intercept, process and analyse every modern type of high capacity communications
system to which access is obtained, including the highest levels of the
Internet. There are few gaps in coverage. The scale, capacity and speed
of some systems is difficult fully to comprehend. Special purpose systems
have been built to process pager messages, cellular mobile radio and new
satellites.
85. Since 1993, unknown to European parliamentary bodies and their electors, law enforcement officials from many EU countries and most of the UKUSA nations have been meeting annually in a separate forum to discuss their requirements for intercepting communications. These officials met under the auspices of a hitherto unknown organisation, ILETS (International Law Enforcement Telecommunications Seminar). ILETS was initiated and founded by the FBI. Table 2 lists ILETS meetings held between 1993 and 1997.
86. At their 1993 and 1994 meetings, ILETS participants specified law enforcement user requirements for communications interception. These appear in a 1974 ILETS document called "IUR 1.0". This document was based on an earlier FBI report on "Law Enforcement Requirements for the Surveillance of Electronic Communications", first issued in July 1992 and revised in June 1994. The IUR requirement differed little in substance from the FBI's requirements but was enlarged, containing ten requirements rather than nine. IUR did not specify any law enforcement need for "key escrow" or "key recovery". Cryptography was mentioned solely in the context of network security arrangements.
87. Between 1993 and 1997 police representatives from ILETS were not involved in the NSA-led policy making process for "key recovery", nor did ILETS advance any such proposal, even as late as 1997. Despite this, during the same period the US government repeatedly presented its policy as being motivated by the stated needs of law enforcement agencies. At their 1997 meeting in Dublin, ILETS did not alter the IUR. It was not until 1998 that a revised IUR was prepared containing requirements in respect of cryptography. It follows from this that the US government misled EU and OECD states about the true intention of its policy.
88. This US deception was, however, clear to the senior Commission official responsible for information security. In September 1996, David Herson, head of the EU Senior Officers' Group on Information Security, stated his assessment of the US "key recovery" project :
| Year | Venue | Non-EU participants | EU participants |
| 1993 | Quantico, Virginia, USA | Australia, Canada, Hong Kong, Norway United States | Denmark, France, Germany, Netherlands, Spain, Sweden, United Kingdom |
| 1994 | Bonn, Germany | Australia, Canada, Hong Kong, Norway, United States | Austria, Belgium, Denmark, Finland, France, Germany, Greece, Ireland, Luxembourg, Netherlands, Portugal, Spain, Sweden, United Kingdom |
| 1995 | Canberra, Australia | Australia, Canada, Hong Kong, New Zealand, Norway, United States | Belgium, France, Germany, Greece, Ireland, Italy, Netherlands, Spain, Sweden, United Kingdom |
| 1997 | Dublin, Ireland | Australia, Canada, Hong Kong, New Zealand, Norway, United States | Austria, Belgium, Denmark, Finland, France, Germany, Ireland, Italy, Luxembourg, Netherlands, Portugal, Spain, Sweden, United Kingdom |
91. Following the third ILETS meeting in Canberra in 1995, the Australian government was asked to present the IUR to International Telecommunications Union (ITU). Noting that "law enforcement and national security agencies of a significant number of ITU member states have agreed on a generic set of requirements for legal interception", the Australian government asked the ITU to advise its standards bodies to incorporate the IUR requirements into future telecommunications systems on the basis that the "costs of [providing] legal interception capability and associated disruptions can be lessened by providing for that capability at the design stage".(58)
92. It appears that ILETS met again in 1998 and revised and extended its terms to cover the Internet and Satellite Personal Communications Systems such as Iridium. The new IUR also specified "additional security requirements for network operators and service providers", extensive new requirements for personal information about subscribers, and provisions to deal with cryptography.
93. On 3 September 1998, the revised
IUR was presented to the Police Co-operation Working Group as ENFOPOL 98.
The Austrian Presidency proposed that, as in 1994, the new IUR be adopted
verbatim as a Council Resolution on interception "in respect of new technology".(59)
The group did not agree. After repeated redrafting, a fresh paper has been
prepared by the German Presidency, for the eventual consideration of Council
Home and Justice ministers.(60)
"Anything would be possible technically. Technically they can scoop all this information up, sort through it and find out what it is that might be asked for . . . But there is not policy to do this specifically in response to a particular company's interest(62)
98. The nature of this intelligence support has been widely reported. "Former intelligence officials and other experts say tips based on spying ... regularly flow from the Commerce Department to U.S. companies to help them win contracts overseas.(65) The Office of Executive Support provides classified weekly briefings to security officials. One US newspaper obtained reports from the Commerce Department demonstrating intelligence support to US companies:
100. In Australia, commercially relevant Comint is passed by DSD to the Office of National Assessments, who consider whether, and if so where, to disseminate it. Staff there may pass information to Australian companies if they believe that an overseas nation has or seeks an unfair trade advantage. Targets of such activity have included Thomson-CSF, and trade negotiations with Japanese purchasers of coal and iron ore. Similar systems operate in the other UKUSA nations, Canada and New Zealand.
Panavia European Fighter Aircraft consortium and Saudi Arabia
Developments in technology
107. Even where access is readily available (such as to COMSATs), the proliferation of new systems will limit collection activities, partly because budgetary constraint will restrict new deployments, and partly because some systems (for example, Iridium) cannot be accessed by presently available systems.
108. In the past 15 years the substantial technological lead in computers and information technology once enjoyed by Comint organisations has all but disappeared. Their principal computer systems are bought "off the shelf" and are the equal of or even inferior to those used by first rank industrial and academic organisations. They differ only in being "TEMPEST shielded", preventing them emitting radio signals which could be used to analyse Sigint activity.
109. Communications intelligence organisations recognise that the long war against civil and commercial cryptography has been lost. A thriving academic and industrial community is skilled in cryptography and cryptology. The Internet and the global marketplace have created a free flow in information, systems and software. NSA has failed in its mission to perpetuate access by pretending that that "key escrow" and like systems were intended to support law enforcement (as opposed to Comint) requirements.
110. Future trends in Comint are likely to include limits on investment in Comint collection from space; greater use of human agents to plant collection devices or obtain codes than in the past; and an intensified effort to attack foreign computer systems, using the Internet and other means (in particular, to gain access to protected files or communications before they are encrypted).
111. Attempts to restrict cryptography have nevertheless delayed the large-scale introduction of effective cryptographic security systems. The reduced cost of computational power has also enabled Comint agencies to deploy fast and sophisticated processing and sorting tools.
112. Recent remarks to CIA veterans by the head of staff of the US House of Representatives Permanent Select Committee on Intelligence, ex CIA officer John Millis illustrate how NSA views the same issues:
The media of telecommunications is no longer Sigint-friendly. It used to be. When you were doing RF signals, anybody within range of that RF signal could receive it just as clearly as the intended recipient. We moved from that to microwaves, and people figured out a great way to harness that as well. Well, we're moving to media that are very difficult to get to.
Encryption is here and it's going to grow very rapidly. That is bad news for Sigint ... It is going to take a huge amount of money invested in new technologies to get access and to be able to break out the information that we still need to get from Sigint".
1. The 1998 Parliamentary resolution on "Transatlantic relations/ECHELON system"(73) called for "protective measures concerning economic information and effective encryption". Providing such measures may be facilitated by developing an in-depth understanding of present and future Comint capabilities.
2. At the technical level, protective measures may best be focused on defeating hostile Comint activity by denying access or, where this is impractical or impossible, preventing processing of message content and associated traffic information by general use of cryptography.
3. As the SOGIS group within the Commission has recognised,(74) the contrasting interests of states is a complex issue. Larger states have made substantial investments in Comint capabilities. One member state is active in the UKUSA alliance, whilst others are either "third parties" to UKUSA or have made bilateral arrangements with NSA. Some of these arrangements were a legacy of the cold war; others are enduring. These issues create internal and international conflicts of interest. Technical solutions are not obvious. It should be possible to define a shared interest in implementing measures to defeat future external Comint activities directed against European states, their citizens and commercial activities.
4. A second area of apparent conflict concerns states' desires to provide communications interception for legitimate law enforcement purposes. The technical and legal processes involved in providing interception for law enforcement purpose differ fundamentally from those used in communications intelligence. Partly because of the lack of parliamentary and public awareness of Comint activities, this distinction is often glossed over, particularly by states that invest heavily in Comint. Any failure to distinguish between legitimate law enforcement interception requirements and interception for clandestine intelligence purposes raises grave issues for civil liberties. A clear boundary between law enforcement and "national security" interception activity is essential to the protection of human rights and fundamental freedoms.
5. At the present time, Internet browsers and other software used in almost every personal computer in Europe is deliberately disabled such that "secure" communications they send can, if collected, be read without difficulty by NSA. US manufacturers are compelled to make these arrangements under US export rules. A level playing field is important. Consideration could be given to a countermeasure whereby, if systems with disabled cryptographic systems are sold outside the United States, they should be required to conform to an "open standard" such that third parties and other nations may provide additional applications which restore the level of security to at least enjoyed by domestic US customers.
6. The work of ILETS has proceeded
for 6 years without the involvement of parliaments, and in the absence
of consultation with the industrial organisations whose vital interests
their work affects. It is regrettable that, prior to the publication of
this report, public information has not been available in states about
the scope of the policy-making processes, inside and outside the EU, which
have led to the formulation of existing and new law enforcement "user requirements".
As a matter of urgency, the current policy-making process should be made
open to public and parliamentary discussion in member states and in the
EP, so that a proper balance may be struck between the security and privacy
rights of citizens and commercial enterprises, the financial and technical
interests of communications network operators and service providers, and
the need to support law enforcement activities intended to suppress serious
crime and terrorism.
Broadband (high capacity multi-channel) communications
2. Digital communications have almost universally taken over from analogue methods. The basic system of digital multi-channel communications is time division multiplexing (TDM). In a TDM telephony system, the individual conversational channels are first digitised. Information concerning each channel is then transmitted sequentially rather than simultaneously, with each link occupying successive time "slots".
3. Standards for digital communications evolved separately within Europe and North America. In the United States, the then dominant public network carrier (the Bell system, run by AT&T) established digital data standards. The basic building block, a T-1 link, carries the equivalent of 24 telephone channels at a rate of 1.544 Mbps. Higher capacity systems operate at greater data transmission rates Thus, the highest transmission rate, T-5, carries the equivalent of 8,000 speech channels at a data rate of 560 Mbps.
4. Europe adopted a different framework for digital communications, based on standards originally agreed by the CEPT. The basic European standard digital link, E-1, carries 30 telephone channels at a data rate of 2 Mbps. Most European telecommunications systems are based on E-1 links or (as in North America), multiples thereof. The distinction is significant because most Comint processing equipment manufactured in the United States is designed to handle intercepted communications working to the European forms of digital communications.
5. Recent digital systems utilise synchronised signals carried by very high capacity optical fibres. Synchronising signals enables single channels to be easily extracted from high capacity links. The new system is known in the US as the synchronous optical network (SONET), although three equivalent definitions and labels are in use.(75)
7. Both companies include senior ex-NSA staff as directors. When not explicitly stated, their products can be identified as intended for Sigint by virtue of being "TEMPEST screened". AST states generally that its "equipment is used for signal reconnaissance of foreign telecommunications by the United States government". One leading cryptographer has aptly and and engagingly described AST as a "one-stop ECHELON shop".
9. A newly intercepted communications satellite or data link can be analysed using the AST Model 196 "Transponder characterisation system". Once its basic communications structure has been analysed, the Model 195 "Wideband snapshot analyser", also known as SNAPPER, can record sample data from even the highest capacity systems, sufficient to analyse communications in minute detail. By the start of 1999, operating in conjunction with the Model 990 "Flexible Data Acquisition Unit", this systems was able to record, playback and analyse at data rates up to 2.488 Gbps (SONET OC-48). This is 16 times faster than the largest backbone links in general use on the Internet; larger than the telephony capacity of any current communications satellite; and equivalent to 40,000 simultaneous telephone calls. It can be fitted with 48 Gbyte of memory (500-1000 times larger than found in an average personal computer), enabling relatively lengthy recordings of high-speed data links. The 2.5 Gbps capacity of a single SNAPPER unit exceeds the current daily maximum data rate found on a typical large Internet exchange.(77)
10. Both AST and IDEAS offer a wide range of recorders, demultiplexers, scanners and processors, mostly designed to process European type (CEPT) E-1, E-3 (etc) signals at data rates of up to 160 Mbps. Signals may be recorded to banks of high-speed tape recorders, or into high capacity "RAID"(78) hard disk networks. Intercepted optical signals can be examined with the AST Model 257E "SONET analyser".
11. Once communications links have been analysed and broken down to their constituent parts, the next stage of Comint collection involves multi-channel processors which extract and filter messages and signals from the desired channels. There are three broad categories of interest: "voice grade channels", normally carrying telephony; fax communications; and analogue data modems. A wide selection of multi-channel Comint processors are available. Almost all of them separate voice, fax and data messages into distinct "streams" for downstream processing and analysis.
12. The AST Model 120 multi-channel processor - used by NSA in different configurations known as STARQUAKE, COBRA and COPPERHEAD - can handle 1,000 simultaneous voice channels and automatically extract fax, data and voice traffic. Model 128, larger still, can process 16 European E-3 channels (a data rate of 500 Mbps) and extract 480 channels of interest. The 1999 giant of AST's range, the Model 132 "Voice Channel Demultiplexer", can scan up to 56,700 communications channels, extracting more than 3,000 voice channels of interest. AST also provides Sigint equipment to intercept low capacity VSAT(79) satellite services used by smaller businesses and domestic users. These systems can be intercepted by the AST Model 285 SCPS processor, which identifies and extracts up to 48 channels of interest, distinguished between voice, fax and data.
13. According to US government publications, an early Wideband Extraction system was installed at NSA's Vint Hill Farms field station in 1970, about the time that systematic COMSAT interception collection began. That station is now closed. US publications identify the NSA/CSS Regional Sigint Operations Centre at San Antonio, Texas, as a site currently providing a multi-channel Wideband Extraction service.
15. High-speed data systems can also be passed to AST's TRAILMAPPER software system, which works at a data rate of up to 2.5 Gbps. It can interpret and analyse every type of telecommunications system, including European, American and optical standards. TRAILMAPPER appears to have been designed with a view to analysing ATM (asynchronous transfer mode) communications. ATM is a modern, high-capacity digital communications system. It is better suited than standard Internet connections to carrying multimedia traffic and to providing business with private networks (VPN, LAN or WAN). TRAILMAPPER will identify and characterise such business networks.
16. In the next stage downstream, intercepted signals are processed according to whether they are voice, fax or data. AST's "Data Workstation" is designed to categorise all aspects of data communications, including systems for handling e-mail or sending files on the Internet.(81) Although the very latest modem systems (other than ISDN) are not included in its advertised specification, it is clear from published research that AST has developed the technology to intercept and process the latest data communications systems used by individuals and business to access the Internet.(82) The Data Workstation can stored and automatically process 10,000 different recorded signals.
17. Fax messages are processed by AST's Fax Image Workstation. This is described as a "user friendly, interactive analysis tool for rapid examination images stored on disk. Although not mentioned in AST's literature, standard fax pre-processing for Dictionary computers involves automatic "optical character recognition" (OCR) software. This turns the typescript into computer readable (and processable) text. The effectiveness of these systems makes fax-derived Comint an important collection subsystem. It has one drawback. OCR computer systems that can reliably recognise handwriting do not exist. No one knows how to design such a system. It follows that, perversely, hand-written fax messages may be a secure form of communication that can evade Dictionary surveillance criteria, provided always that the associated "signal related information" (calling and receiving fax numbers) have not been recognised as being of interest and directed to a Fax Image Workstation.
18. AST also make a "Pager Identification and Message Extraction" system which automatically collects and processes data from commercial paging systems. IDEAS offer a Video Teleconferencing Processor that can simultaneously view or record two simultaneous teleconferencing sessions. Sigint systems to intercept cellular mobile phone networks such as GSM are not advertised by AST or IDEAS, but are available from other US contractors. The specifications and ready availability of such systems indicate how industrialised and pervasive Comint has became. It has moved far from the era when (albeit erroneously), it was publicly associated only with monitoring diplomatic or military messages.
NSA "Trailmapper software
showing atomatic detection of private networks inside
intercepted high capacity STM-1
digital communications system
20. Whenever machine readable communications are available, keyword recognition is fundamental to Dictionary computers, and to the ECHELON system. The Dictionary function is straightforward. Its basic mode of operation is akin to web search engines. The differences are of substance and of scale. Dictionaries implement the tasking of their host station against the entire mass of collected communications, and automate the distribution of selected raw product.
21. Advanced systems have been developed to perform very high speed sorting of large volumes of intercepted information. In the late 1980s, the manufacturers of the RHYOLITE Sigint satellites, TRW, designed and manufactured a Fast Data Finder (FDF) microchip for NSA. The FDF chip was declassified in 1972 and made available for commercial use by a spin-off company, Paracel. Since then Paracel has sold over 150 information filtering systems, many of them to the US government. Paracel describes its current FDF technology as the "fastest, most accurate adaptive filtering system in the world":
22. A lower capacity system, the PRP-9800 Pattern Recognition Processor, is manufactured by IDEAS. This is a computer card which can be fitted to a standard PC. It can analyse data str