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- Use the Blowfish cipher to improve password security
- In addition to its common use for generating hashes used to verify the integrity of a downloaded file, the MD5 algorithm is also used widely for password authentication systems. It became the most common Unix password hash algorithm in the 1990s, in fact, and many Unix-like systems still default...
- Blog posts 2007-12-09
- Use MD5 hashes to verify software downloads
- Professor Ronald Rivest of MIT created the MD5 cryptographic hash function in 1991 to replace the earlier MD4 algorithm. It employs a 128-bit hash value, typically expressed as a 32-character hexadecimal number. For instance, an MD5 hash generated from an OpenOffice.org download (v2.3.0 for Win32, English language) looks...
- Blog posts 2007-12-05
- Additional thoughts on long-term digital storage
- After my post on the myth of perpetual digital storage, I received a few e-mail messages from TechRepublic members who specialize in the field of data management or digital archival. There are a few key areas that stand out, on which I will elaborate today. Populate...
- Blog posts 2007-11-19
- Verify integrity with md5deep
- For those gui inclinedFor those with a gui affliction, you can use a product called MD5Summer on Windows. You can find it at http://www.md5summer.org.MD5 is obsolete and broken. Do NOT use it for checking file authenticity!It is easy to create two executables with the same MD5:More info onhttp://cryptography.hyperlink.cz/MD5_collisions.htmlorhttp://www.mathstat.dal.ca/~selinger/md5collision/RE: Verify...
- Discussion threads 2007-07-12
- Verify integrity with md5deep
- Almost everyone who's downloaded software has no doubt come across MD5 sums to verify a package or programs integrity. For those of you who haven't used them the MD5 signature is a 32 character hexadecimal number that is usually displayed next to a filename. While it's theoretically possible...
- Blog posts 2007-07-09
- 2.2.1 Release Candidate
- WordPress 2.2.1 is almost ready. 2.2.1 fixes bugs in widgets, xmlrpc, atom feeds, and other areas. 2.2.1 also addresses security issues found in xmlrpc and phpmailer. Well have more on that in the release notes.A release candidate is available for testing. Try it out, and drop...
- Blog posts 2007-06-16
- Adobe Professional Won't Install--Is it Firefox?
- Hello..so I downloaded the Adobe Professional 8 on my home computer and when I try to install it, it says 'please wait while we configure.."blah blah..and nothing happens. I downloaded it at work and it was just fine. I'm working from home this week and need to be able to...
- Discussion threads 2007-05-30
- 2.2 Release Candidate 2
- Release Candidate 2 of WordPress 2.2 is up.wordpress-2.2-RC2.tar.gzmd5: 1535c8dbab84dea7f0338cba5e58bf2ewordpress-2.2-RC2.zipmd5: 96d038eb76c3970fb32b707962f23df2Here is the full diff between RC1 and RC2.And heres the lowdown on what went into in RC2.The WP importer was reworked to get around a preg_match_all problem in PHP 5.2.2. #4239The show count option for the archives widget now works...
- Blog posts 2007-05-13
- Postgresql installation - incomplete pg_hba.conf
- I am trying to install Postgresql on my Redhat Ent. VPS. I have used the following steps to install it:COPIED FROM ANOTHER SITE:**************************************************************************************************rpm -qa | grep postgres | tee /root/rpm_pgsqlThe above will list all the installed postgresql rpm packages and store the output to /root/rpm_pgsql. You can use this list...
- Discussion threads 2007-02-27
- MD5 Signatures on Downloaded Software
- I have a question for those who are "in the know" on these sorts of things. Maybe this is a stupid question. (I am *so* glad I log in under an alias!)It's regarding the inclusion of an MD5 signature on the website with a download of Open Source software. Or...
- Discussion threads 2007-01-11
- PHP and MySQL password change form with MD5
- Hi,Summary:I am a beginner to PHP and MySQL. I have recently built my first user authentication web interface using PHP sessions, MySQL, and MD5. I can get the users to register, and then log in with a randomly generated password.Problem:My problem is no matter how hard I try I cannot...
- Discussion threads 2005-11-10
- Oracle Tip: Consider MD5 checksums for application passwords
- Don't use MD5, is not secureI have been discussing this issue on my blog.MD5 even was banned in Microsoft.For years people recommends not to use it.First, the posibility of a dictionary attack, and now because of the Rainbow tables, the md5 password as you propose can be broken in minutes,...
- Discussion threads 2005-10-12
- Exploiting MD5 collisions
- If you are not convinced that MD5 hash function is no longer adecuate for file verification, read this article: http://www.codeproject.com/useritems/HackingMd5.aspAlso on my blog I collected a lot of information about the hacking to MD5 functionhttp://www.darksideprogramming.org/archives/criptography/index.html
- Discussion threads 2005-09-15
- Microsoft is not tackling the root cause
- Most malware exploits buffer overflows in Microsoft code. That is where a program allows a malicious user to supply more data than is expected, and places in memory in a way which allows the machine to be reprogrammed maliciously.For more than 35 years there have been computer languages which...
- Discussion threads 2005-08-22
- Be aware of how easily someone can crack a Cisco IOS password
- CISCOI enjoy alot on no thing,,,, but Cisco staff.re: md5..it can be beaten.it has been beaten.the simplest way it to run the md5 encryption as a sum, and then start comparing other strings until you get same sum.identicle sums will allow your encrypted string to be accepted as password.it's still...
- Discussion threads 2005-08-14
- Protect sensitive data with hashing in .NET
- Due to the increasing number of securitythreats, cryptography is a must for most application developmentprojects. Cryptography basically takes meaningful data andtransforms it into data stripped of meaning. The .NET Framework includes everythingnecessary to protect your sensitive data, with one of the morepopular techniques being hashing. ...
- Technical articles 2005-07-25
- Protect sensitive data with hashing in .NET
- The .NET Framework includes everything necessary to protect your sensitive data, with one of the more popular techniques being hashing. Hashing provides a simple method of scrambling data values that may be easily stored in a database and re-created using the original hash algorithm. Due to the...
- Technical articles 2005-07-25
- Time sensitive issue--Please respond immediately--Image Morphing
- Does anyone know of any software or anything that can detect if an image has been morphed? It's nearly impossible to detect with the naked eye, if an image has been changed.Do you have the original?Are you talking about stenography or just something that has been photoshopped?I guess either...
- Discussion threads 2005-06-02
- Oracle Tip: Consider MD5 checksums for application passwords
- It's common to store username and passwordcombinations in a database table for application-level security.This is a good practice because it avoids giving your actualdatabase username and password combinations, which someone coulduse to access the tables and application code directly. There is still a slight risk that someone...
- Technical articles 2004-05-23
- The perils of using PHP crypt()
- Using PHP crypt to create encrypted passwords can be a troublesome undertaking. Learn more about this function and some common sources of errors.The PHP crypt function is a handy tool for encrypting passwords and other data requiring comparison of encrypted strings but not actual decryption. However, selecting an appropriate encryption...
- Technical articles 2002-07-30
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