cryptography

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Latest blogosphere posts tagged “cryptography”

 

• Illegal numbers: Can you break the law with math?

  
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  When numbers are illegal, anyone with a computer might reasonably ask questions about what exactly would constitute an offence. In the absence of law and precedent for an infinite space of numbers, perhaps the best that can done is to set a few guidelines which protect fair use of our numerical heritage.
  2 days ago

• Monday review – the hot 24 stories of the week

  
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  In case you missed any recent stories, heres everything we wrote in the last seven days.
  3 days ago

• Get ready for the next #sophospuzzle – coming soon to a T-shirt near you

  
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  Its almost time for the annual AusCERT conference in Queensland, Australia.And for everyone whos asked, the answer is, "Yes! Theres a #sophospuzzle!"No, you dont have to there to join in...
  4 days ago

• Cryptography in .NET : Random Numbers and Hashes

  
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  This is the 3 rd  part in a short series on cryptography in .NET. In the previous 2 articles I covered using Symmetric algorithms like AES and Asymmetric algorithms like RSA . In this section I want to cover random number generation and hashing. This will lead into the final article which will be about combining ...
  1 week ago

• Is Goldman Sachs the Canary?

  
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  As reported in today’s New York Times, Bloomberg said the functions that allowed journalists to monitor subscribers were a mistake and were promptly disabled after Goldman Sachs complained that a Bloomberg reporter had, while inquiring about a partner’s employment status, pointed out that the partner had not ...
  1 week ago

• Cryptography: The Science of Encoding and Decoding Messages

  
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  Sending secret messages using codes has been a practice since the ancient time. In the Roman Empire, military officers would let messengers cut their hair, tattoo a secret message on their head, and send them to another place to relay … Continue reading →
  1 week ago

• Snapchat images that have "disappeared forever" stay right on your phone...

  
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  Snapchat claims to let you share even "ugly selfies" because once theyre viewed they "disappear forever."US-based computer forensics geek Richard Hickman thought hed find out how true that claim was...
  1 week ago

• BYOD Security: Complying With Australian Privacy Principle 11

  
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  Last week (28 April to 4 May 2013) was "Privacy Awareness Week" in the Asia Pacific region.  Australia is one of the entities that participates in PAW (the others are, in alphabetical order, Canada, Hong Kong, Korea, Macau, Mexico, New Zealand, and the USA). As part of the awareness campaign, the Office of the ...
  2 weeks ago

• Government lab reveals it’s had fledgling quantum internet operating for two years

  
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  This week, the Los Alamos National Laboratory announced that it has had a functioning "quantum internet" for some time now.
  2 weeks ago

• RQ-4 Euro Hawk UAV: Certification Kill?

  
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  Euro Hawk UAV (clickto view full) Since the 9/11 terrorist attacks, the RQ-4 Global Hawk high-altitude, long-endurance (HALE) UAV has gone from a developmental platform to the next generation of American aerial reconnaissance. Flying at 60,000 feet, the RQ-4′s use their advanced synthetic aperture radar and other ...
  2 weeks ago

• Monday review - the hot 20 stories of the week

  
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  Get up to date with everything we wrote in the past seven days - its weekly roundup time.
  2 weeks ago

• British cryptographic hacking from WW2 - how well would *you* have done?

  
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  If you were taken prisoner and wanted to send messages home under your captors noses, what would you do?Find out how a Royal Navy officer did just that during WW2, and have a go yourself at hiding a secret message in an innocent-sounding letter home!
  2 weeks ago

• IBM takes a big new step in cryptography: practical homomorphic encryption

  
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  IBM just released an open source software package called HELib.HE stands for *homomorphic encryption*, and HELib is an important cryptographic milestone.Paul Ducklin explains why...
  2 weeks ago

• How to specify signature level in OpenPGP

  
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  I always misplace this information, so I’m saving it here for (hopefully) easier access next time. By default, gpg will sign keys without specifying a certification level (ie it will set it to 0, which means unspecified). If you want to change this behavior, you can add ask-cert-level in the configuration file ( ...
  2 weeks ago

• Ophcrack v3.5.0

  
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  Ophcrack is a Windows password cracker based on a time-memory trade-off using rainbow tables. This is a new variant of Hellman’s original trade-off, with better performance. It recovers 99.9% of alphanumeric passwords in seconds. Ophrack 3.5.0 comes with a Qt Graphical User Interface which runs on Windows, Mac OS X ...
  2 weeks ago

• Generating Random Numbers for Cryptography with Lava Lamps

  
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  Generating Random Numbers for Cryptography with Lava Lamps? Yes, this is a serious article. Cryptography often requires random numbers. From seed values to cryptographic key material to data obfuscation values to actual keys, random numbers are incredibly important. If there’s … Continue Reading
  2 weeks ago

• What is Encryption and How Does It Work?

  
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  Encryption has a long history dating back to when the ancient Greeks and Romans sent secret messages by substituting letters only decipherable with a secret key. Join us for a quick history lesson and learn more about how encryption works.  The Early Days of Encryption The ancient Greeks used a tool called a  ...
  3 weeks ago

• Video Tour of Udacity: Free College Courses Online

  
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  Topic :   Free college courses (currently mostly math, computer-related, web development, etc.) Format :  Complete courses, some available for credit, that include brief videos, quizzes, practice exercises, and more Reviewer /email: Mike G – greers_pm@yahoo.com This is a brief video tour of the Udacity ...
  3 weeks ago

• The hidden side of Internet: access it anonymously using FreeNet

  
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  Follow @FantaGhost Every time we access an Internet resource (web, mail, IRC, etc…) our ADSL modem or router is connected “directly”: all packets transmitted by our computer are addressed via routers and switches across the net to their final destination. Every time our packets pass through a network ...
  3 weeks ago

• Data Backup Encryption: Kmart (Inadvertently) Suffers Data Breach At Gun Point

  
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  Do you backup your data?  Excellent!  Do you use encryption software to protect its contents?  Not doing so means that youve joined the "Data Breach Club," where the chances of a data breach are not an "if" but "when."  Take Kmart as an example, which had a data breach because a thief robbed one of its store at ...
  3 weeks ago

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