Difference between pages "Blogs" and "CDMA"

From ForensicsWiki
(Difference between pages)
Jump to: navigation, search
 
(Forensics)
 
Line 1: Line 1:
[[Computer forensics]] related resources like: blogs, fora, tweets, tools and challenges (and test images).
+
'''Code division multiple access''' ('''CDMA''') is a cellular frequency that, originally developed during World War II for military purposes, incorporates "spread spectrum" techniques. Unlike other cellular systems like [[GSM]] and [[TDMA]], every channel on the network uses the full available spectrum. This allows each user (identified by a unique [[pseudonoise code]] ([[PN]])) to communicate over several frequencies, as opposed to only one. CDMA is an improved version of TDMA (Time Division Multiple Access). TDMA uses a time-sharing protocol to provide three to four times more capacity than analog systems, just as a GSM.
  
= Blogs =
+
== History ==
  
== English ==
+
[[Qualcomm]] developed the key advances that made CDMA suitable for [[cell phones|cellular phones]] and conducted an open demonstration in San Diego in November 1989.
  
* [http://www.appleexaminer.com/ The Apple Examiner]
+
The first CDMA network was launched commercially in 1995 as [[cdmaOne]] and provided approximately 10 times more capacity than analog networks. CDMA has become the fastest-growing of all wireless technologies, with over 100 million subscribers worldwide.  
* [http://computer.forensikblog.de/en/ Computer Forensics Blog], by [[Andreas Schuster]]
+
* [http://www.niiconsulting.com/checkmate/ Checkmate - e-zine on Digital Forensics and Incident Response]
+
* [http://www.infosecinstitute.com/blog/ethical_hacking_computer_forensics.html Jack Koziol - Ethical Hacking and Computer Forensics]
+
* [http://windowsir.blogspot.com/ Windows Incident Response Blog], by [[Harlan Carvey]]
+
* [http://geschonneck.com/ Computer Forensics Blog], by [[Alexander Geschonneck]]
+
* [http://forensicblog.org/ Computer Forensics Blog], by [[Michael Murr]]
+
* [http://forenshick.blogspot.com/ Forensic news, Technology, TV, and more], by [[Jordan Farr]]
+
* [http://unixsadm.blogspot.com/ UNIX, OpenVMS and Windows System Administration, Digital Forensics, High Performance Computing, Clustering and Distributed Systems], by [[Criveti Mihai]]
+
* [http://intrusions.blogspot.com/ Various Authors - Intrusions and Malware Analysis]
+
* [http://chicago-ediscovery.com/education/computer-forensics-glossary/ Computer Forensic Glossary Blog, HOWTOs and other resources], by [[Andrew Hoog]]
+
* [http://secureartisan.wordpress.com/ Digital Forensics with a Focus on EnCase], by [[Paul Bobby]]
+
* [http://www.crimemuseum.org/blog/ National Museum of Crime and Punishment-CSI/Forensics Blog]
+
* [http://forensicsfromthesausagefactory.blogspot.com/ Forensics from the sausage factory]
+
* [http://integriography.wordpress.com Computer Forensics Blog], by [[David Kovar]]
+
* [http://jessekornblum.livejournal.com/ A Geek Raised by Wolves], by [[Jesse Kornblum]]
+
* [http://computer-forensics.sans.org/blog SANS Computer Forensics and Incident Response Blog by SANS Institute]
+
* [http://www.digitalforensicsource.com Digital Forensic Source]
+
* [http://dfsforensics.blogspot.com/ Digital Forensics Solutions]
+
* [http://forensicaliente.blogspot.com/ Forensicaliente]
+
* [http://www.ericjhuber.com/ A Fistful of Dongles]
+
* [http://gleeda.blogspot.com/ JL's stuff]
+
* [http://4n6k.blogspot.com/ 4n6k]
+
* [http://justaskweg.com/ JustAskWeg], by [[Jimmy Weg]]
+
* [http://blog.kiddaland.net/ IR and forensic talk], by [[Kristinn Gudjonsson]]
+
* [http://c-skills.blogspot.ch/ c-skills], by [[Sebastian Krahmer]]
+
* [http://sketchymoose.blogspot.ch/]
+
  
== Dutch ==
+
== Benefits ==
  
* [http://stam.blogs.com/8bits/ 8 bits], by [[Mark Stam]] (also contain English articles otherwise use [http://translate.google.com/translate?u=http%3A%2F%2Fstam.blogs.com%2F8bits%2Fforensisch%2Findex.html&langpair=nl%7Cen&hl=en&ie=UTF-8 Google translation])
+
* Greater capacity. Provides 10-20 times the capacity of analog equipment and three times the capacity of other digital platforms.
 +
* Excellent voice and call quality through the filtering out of background noise, cross-talk, and interference.
 +
* Rapid deployment. CDMA systems can be expanded quickly and more cost effectively than most landline networks.
 +
* Fewer dropped calls.
 +
* Improved security and privacy because of CDMA's digitally encoded transmissions.
 +
* Reduced background noise and interference by combining multiple signals which improves signal strength.
  
== French ==
+
== Forensics ==
  
* [http://forensics-dev.blogspot.com Forensics-dev] ([http://translate.google.com/translate?u=http%3A%2F%2Fforensics-dev.blogspot.com%2F&langpair=fr%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools Google translation])
+
CDMA phones do not have the advantage of [[SIM Cards]], so forensics can only be done on the phone itself, as all relevant data is stored directly on the phone. This information includes the [[phonebook]], [[call history]] log, [[SMS]] messages, and any calendar or to-do applications the phone might have.
  
== German ==
+
Due to the fact that the phone must be physically connected to a forensics workstation for data acquisition, it is important to be aware of the phone's battery state (a charging cable should be obtained to ensure constant power), and blocking the phone's signal. Also, the correct data cable must be obtained to connect the phone to the workstation ([[Susteen]] provides a kit that includes many cables for the most popular phones).
  
* [http://computer.forensikblog.de/ Computer Forensik Blog Gesamtausgabe], by [[Andreas Schuster]] ([http://computer.forensikblog.de/en/ English version])
+
=== Software ===
* [http://computer-forensik.org computer-forensik.org], by [[Alexander Geschonneck]] ([http://translate.google.com/translate?u=http%3A%2F%2Fwww.computer-forensik.org&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools Google translation])
+
* [http://henrikbecker.blogspot.com Digitale Beweisführung], by [[Henrik Becker]] ([http://translate.google.com/translate?u=http%3A%2F%2Fhenrikbecker.blogspot.com&langpair=de%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools Google translation])
+
  
== Spanish ==
+
Software for acquiring a CDMA-based phone includes:
  
* [http://www.forensic-es.org/blog forensic-es.org] ([http://translate.google.com/translate?u=http%3A%2F%2Fwww.forensic-es.org%2Fblog&langpair=es%7Cen&hl=en&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools Google translation])
+
* [[BitPIM]]
* [http://www.inforenses.com InForenseS], by [[Javier Pages]] ([http://translate.google.com/translate?u=http%3A%2F%2Fwww.inforenses.com&langpair=es%7Cen&hl=es&ie=UTF-8&oe=UTF-8&prev=%2Flanguage_tools Google translation])
+
* [[DataPilot Secure View]]
* [http://windowstips.wordpress.com El diario de Juanito]
+
* [[Paraben Cell Seizure]]
* [http://conexioninversa.blogspot.com Conexión inversa]
+
  
== Russian ==
+
== External Links ==
  
* Group-IB: [http://notheft.ru/blogs/group-ib blog at notheft.ru], [http://www.securitylab.ru/blog/company/group-ib/ blog at securitylab.ru]
+
* [http://en.wikipedia.org/wiki/Cdma Wikipedia: CDMA]
 
+
* [http://www.bitpim.org: BitPIM]
= Related blogs =
+
* [http://www.susteen.com DataPilot Secure View]
 
+
* [http://www.paraben-forensics.com Paraben Cell Seizure]
* [http://www.c64allstars.de C64Allstars Blog]
+
* [http://www.emergentchaos.com/ Emergent Chaos], by [[Adam Shostack]]
+
* [http://jeffjonas.typepad.com/ Inventor of NORA discusses privacy and all things digital], by [[Jeff Jonas]]
+
* [http://www.cs.uno.edu/~golden/weblog Digital Forensics, Coffee, Benevolent Hacking], by [[Golden G. Richard III]]
+
 
+
= Circles/Fora/Groups =
+
* [http://forensicfocus.com/ Forensic Focus]
+
* [http://tech.groups.yahoo.com/group/win4n6 Yahoo! groups: win4n6 · Windows Forensic Analysis]
+
 
+
= Tweets =
+
* [http://twitter.com/#!/search/%23DFIR?q=%23DFIR #DFIR]
+
* [http://twitter.com/#!/search/%23forensics #forensics]
+
 
+
= Tools =
+
* [http://www2.opensourceforensics.org/ Open Source Digital Forensics]
+
* [http://forensiccontrol.com/resources/free-software/ Free computer forensic tools]
+
* [http://code.google.com/p/libyal/ Yet another library library (and tools)]
+
 
+
= Challenges (and test images) =
+
* [http://www.forensicfocus.com/images-and-challenges Forensic Focus - Test Images and Forensic Challenges]
+
* [http://testimages.wordpress.com/ Digital Forensic Test Images]
+
* [http://secondlookforensics.com/linux-memory-images/ Second Look - Linux Memory Images]
+
 
+
= Conferences =
+
See: [[:Category:Conferences|Conferences]]
+
 
+
[[Category:Further information]]
+

Revision as of 10:30, 30 April 2006

Code division multiple access (CDMA) is a cellular frequency that, originally developed during World War II for military purposes, incorporates "spread spectrum" techniques. Unlike other cellular systems like GSM and TDMA, every channel on the network uses the full available spectrum. This allows each user (identified by a unique pseudonoise code (PN)) to communicate over several frequencies, as opposed to only one. CDMA is an improved version of TDMA (Time Division Multiple Access). TDMA uses a time-sharing protocol to provide three to four times more capacity than analog systems, just as a GSM.

History

Qualcomm developed the key advances that made CDMA suitable for cellular phones and conducted an open demonstration in San Diego in November 1989.

The first CDMA network was launched commercially in 1995 as cdmaOne and provided approximately 10 times more capacity than analog networks. CDMA has become the fastest-growing of all wireless technologies, with over 100 million subscribers worldwide.

Benefits

  • Greater capacity. Provides 10-20 times the capacity of analog equipment and three times the capacity of other digital platforms.
  • Excellent voice and call quality through the filtering out of background noise, cross-talk, and interference.
  • Rapid deployment. CDMA systems can be expanded quickly and more cost effectively than most landline networks.
  • Fewer dropped calls.
  • Improved security and privacy because of CDMA's digitally encoded transmissions.
  • Reduced background noise and interference by combining multiple signals which improves signal strength.

Forensics

CDMA phones do not have the advantage of SIM Cards, so forensics can only be done on the phone itself, as all relevant data is stored directly on the phone. This information includes the phonebook, call history log, SMS messages, and any calendar or to-do applications the phone might have.

Due to the fact that the phone must be physically connected to a forensics workstation for data acquisition, it is important to be aware of the phone's battery state (a charging cable should be obtained to ensure constant power), and blocking the phone's signal. Also, the correct data cable must be obtained to connect the phone to the workstation (Susteen provides a kit that includes many cables for the most popular phones).

Software

Software for acquiring a CDMA-based phone includes:

External Links