X.25: “Interface between Data Terminal Equipment (DTE) and Data Circuit-terminating Equipment (DCE) for terminals operating in the packet mode and connected to public data networks by dedicated circuit”. First published in the CCITT, Orange Book, October 1976, Later versions available as ITU-T X.25

https://www.itu.int/itu-t/recommendations/rec.aspx?rec=3694

SnifferMaterial

SnifferArchive (Zip File 1.1GB)

Top Patent search engines

USPTO Web Patent Databases – Contains links to the various databases of the Patent and Trademark Office. Provides full-text of patents from 1976 to the present and full-page images for patents starting in 1790. Recent U.S. patents are available from this site long before they become available on other patent sites. The USPTO’s PATFT searches and serves over 7,000,000 patents and includes all three types of patents (utility, design and plant). Word searches only find patents from 1976 to the present. Prior patents must be searched by issued date, patent number or classification number.

Espacenet – Produced by the European Patent Office – free access to more than 80 million patent documents worldwide, containing information about inventions and technical developments from 1836 to today. Addition to this group – https://www.epo.org/searching-for-patents.html

The Lens: Patent Search – The Lens covers over 100 million patent documents from around the world. Includes classification searching and quick access to patent family information. Patents identified using the Lens can then be tracked down elsewhere if full text is not available in the Lens.

Google Patent Search – This is exactly what it sounds like – the Google search version of the USPTO patent database; however, it does not contain the most recent U.S. patents. It offers the ability to search through U.S. patents by patent number, inventor, keywords, date, classification number, or patent type. It includes patent applications and international patents. Clicking on parts of the record allows researchers to easily move around to view similar patents. Printing images can be done by right clicking on the drawing and selecting print. Use Advanced Search form for specialized searches: http://www.google.com/advanced_patent_search

pat2pdf – This is a free website that will allow you to enter a U.S. patent number and retrieve a PDF version of the patent. The documents are drawn from the USPTO file server and it does not require any special software to view the images.

PATENTSCOPE – Free tool. One of the few sources that will allow researchers to simultaneously search across multiple countries’ patent collections. Some results will link out to full-text, depending on availability.

Canadian Patent Database – The Canadian Patent Database contains all Canadian patents (both applications and granted patents) since 1924. Contains only bibliographic data, titles and images. No abstracts or claims data are available for patents granted prior to August 15, 1978.

DEPATISnet – DEPATISnet is a free service provided by the German Patent and Trade Mark Office (GPTO). Visitors can conduct online searches in patent publications from around the world stored in the database of DEPATIS. Data records are imported into DEPATIS in the original language. For example, Japanese patents will have English abstracts but French documents will be in French as this is the way the data was supplied to DEPATIS. No translations are provided.

UK Patents and Copyrights – https://www.gov.uk/search-for-patent

Industrial Property Digital Library (http://www.ipdl.inpit.go.jp/homepg_e.ipdl) The JPO (Japanese Patent Office) serves patents from their Industrial Property Digital Library. The PAJ (Patent Abstracts of Japan) database has word searching back to 1976. Their classification system (F1/F-term) search goes back to 1885. There is a three to six month delay in translations to English. The Japan Patent Information Organization (JAPIO) offers English-language access to Japanese unexamined patent applications and offers a machine translation of patents.

SurfIP (https://www.ipos.gov.sg/about-ip/patents) SurfIP, the Singapore government’s patent database, has a structured search that accesses any or all of the following countries’ patent information: U.S., China, UK, Canada, Taipei, Korea, and Thailand. The choices also include EP patents. Interestingly, Japan is not listed. The number of stars in the results list indicates perceived relevance, and an active link leads to the home site for the full document.

Patent Analysis (h ttp://www.patentanalysis.com/) – Countries like Australia and New Zealand have put patent information online recently. Patent Analysis searches both along with the U.S. and European patents.

Freepatentsonline (http://www.freepatentsonline.com/search.html) – Freepatentsonline has search fields similar to PATFT. It searches U.S., EP, (European), JP (Japanese), and WO (PCT) patents. Alerts, portfolios, and PDF downloading are available with free registration, but only for the sites’ word-searchable patents (i.e., U.S. from 1976).

Specialty Web Engines

Archive.org – Huge behemoth of media now public domain – rare books, sound recordings, video, 20 year archived images of all old websites, and free audio books!

Smithsonian Institution Libraries — 20 libraries from museum complexes around the world.

The National Archives — National Archives’ research tools and online databases.

HighWire Press — Online catalog of the largest repository of free full-text and non-free text, peer-reviewed content, from over 1000 different journals.

Topix.net — A news search engine.

Internet Public Library — Internet’s public library.

San Francisco Public Library – A great online library. This is just one example of many such local public libraries that offer similar services.

Books Online

The National Academies Press — Only about 3,000 free books online and ~900 for-sale PDFs.

Newspaper Archives Online – deep research on public announcements

US newspaper coverage – Research Guides lists links to many newspapers

Library of Congress Newspaper Resource List – LOC does a great job getting the list together of wonderful newspaper archives.

NewspaperArchive.com – (commercial) – Known for a large collection.

Business Web Engines

Government Printing Office — Big catalog of stuff published by the Government Printing office. Has business stuff but much much more. Environmental reports, legal docs, nature stuff.

Hoover’s — The Big Boy of info on businesses.

ThomasNet — Just an industrial product search directory.

Consumer Engines

US Consumer Products Safety Commission Recalled Products — Listing of products, sortable by company name.

Government Search Engines

Grants — Grant opportunities, from everything under the sun.

Law and Politics

Law Library of Congress — Allegedly, the largest collection of legal materials in the world, over 2 million volumes.

Global Legal Information Network — Laws, regulations, judicial decisions, and other legal sources.

FindLaw — Free legal database, with collections of cases and codes, legal news.

Science and Academic

Academic Index – Main search is a filtered Google search aimed at high authority rank sites, mainly .edu and .gov which filters a great deal out. Second search ties into deep web academic and non-academic databases skewed to librarians and educators.

Science.gov — Gateway to science info provided by US government agencies.

IEEE Publications (Commercial) — Contains over 1.4 million documents from the Institute of Electronics and Electrical Engineers.

Arxiv – arxiv.org/ — Cornell University repository. Access to 700,000+ technical papers on everything from quantitative biology to computer science. Appears to offer full text in several formats.

Deep Dyve (Commercial) — www.deepdyve.com
DeepDyve has aggregated millions of articles across thousands of journals from the world’s leading publishers, including Springer, Nature Publishing Group, Wiley-Blackwell and more.

Data Mining Data Sources

http://www.kdnuggets.com/datasets/index.html – Links to gobs of free and commercial datasets used for data mining.

Cyber War / InfoSec

Iron Geek irongeek.com — An excellent library of videos explaining many facets of InfoSec and hacking & security

Security Tube – securitytube.net — A large library of videos covering many topics in InfoSec, cyberwar, and most of the hacking conferences.

DefCon — The main hackers Con, so well known that now the Feds send their folks here and it has become a wild west training ground for coming trends. Archives go back to Defcon 1. They are now on Defcon 20, I think.

Shodan – The deep web search for what things are connected to the internet. Controversial, but a good tool.

Terms of Use: The information and links, including search engines and resulting information, found on the DPI Consortium website or in the DPI Consortium Prior Art Database, are offered to help the reader understand the history of deep packet inspection (DPI) technology. While DPI Consortium has endeavored to convey accurate information, DPI Consortium makes no representations or warranties expressed or implied as to the topicality, correctness, completeness, admissibility, or quality of the information provided. DPI Consortium is not responsible for the content linked or referred to from these pages or the DPI Consortium Prior Art Database. Neither DPI Consortium nor its contributors shall be held liable for any use of the information provided. Users of the information should independently confirm the accuracy of information as appropriate for their intended uses.

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Resources

USPTO Training

Articles

The Wild West is Less Wild Than You Think: The Role of Lawful Intercept in Safeguarding Data Collection

The History of Data Communication Analysis

Why Deep Packet Inspection is Vital in the Cloud

Visibility and access strategies for Deep Packet Inspection

How Network Traffic Analysis is Vital to the Performance and Security of Today’s Connected World

Sniffer

History of Sniffers

Protocol Analyzer History

Videos

Example Products

HP 4953A Protocol Analyzer

Standards

IETF Standards

Archive of historical ITU proceedings, including CCITT books

Open source projects

Ethereal/Wireshark

Tcpdump/libpcap

Snort

CCITT/ITU-T Standards