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Comparing Data Recovery Software
Software programmers recognize the importance of data files, and thankfully, they have been able to create products that demonstrate their understanding of how often people accidentally delete or lose important data. Thanks to software programmers...
Data Recovery and Data Safety Tips
Whether you own your own business or work for someone that does
you'll find that data protection is one of the smartest and
safest approaches you can take to ensure the profitability and
livelihood of your business. When dealing with data...
Data Recovery Made Easy
Today millions of people all around the world depend on their computers for their daily work, and while modern computers are fairly reliable millions of dollars are lost every year due to technical problems and loss of data. If you spend more than a...
Microsoft Great Plains Customization Recovery & Upgrade For Large Corporation
At the end of XX century, in the late 1990th Great Plains Software eEnterprise was recognized as one of the leader on the midsize to large corporate ERP market. Due to the nature of eEnterprise architecture - it is Great Plains Dexterity based...
Recognizing a PC with Malware
What can you do if you think your computer is affected by spyware or a virus or other malware? (Malware is short for malicious
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Background Of Password Cracking
Passwords to access computer systems are usually stored, in some form, in a database in order for the system to perform password verification. To enhance the privacy of passwords, the stored password verification data is generally produced by applying a one-way function to the password, possibly in combination with other available data. For simplicity of this discussion, when the one-way function does not incorporate a secret key, other than the password, we refer to the one way function employed as a hash and its output as a hashed password. Even though functions that create hashed passwords may be cryptographically secure, possession of a hashed password provides a quick way to verify guesses for the password by applying the function to each guess, and comparing the result to the verification data. The most commonly used hash functions can be computed rapidly and the attacker can do this repeatedly with different guesses until a valid match is found, meaning the plaintext password has been recovered.
The term password cracking is typically limited to recovery of one or more plaintext passwords from hashed passwords. Password cracking requires that an attacker can gain access to a hashed password, either by reading the password verification database or intercepting a hashed password sent over an open network, or has some other way to rapidly and without limit test if a guessed password is correct. Without the hashed password, the attacker can still attempt access to the computer system in question with
guessed passwords. However well designed systems limit the number of failed access attempts and can alert administrators to trace the source of the attack if that quota is exceeded. With the hashed password, the attacker can work undetected, and if the attacker has obtained several hashed passwords, the chances for cracking at least one is quite high. There are also many other ways of obtaining passwords illicitly, such as social engineering, wiretapping, keystroke logging, login spoofing, dumpster diving, timing attack, etc.. However, cracking usually designates a guessing attack.
Cracking may be combined with other techniques. For example, use of a hash-based challenge-response authentication method for password verification may provide a hashed password to an eavesdropper, who can then crack the password. A number of stronger cryptographic protocols exist that do not expose hashed-passwords during verification over a network, either by protecting them in transmission using a high-grade key, or by using a zero-knowledge password proof.
About the Author: David and his team developed Article Post Robot, http://www.articlepostrobot.com, the software which can post articles to hundreds of article sites and mail lists automatically.
Source: www.isnare.com
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| Data Recovery Software and Undelete from R-TT |
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| www.r-tt.com |
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| Data Recovery | Email Data Recovery by Ontrack |
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| www.runtime.org |
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| Beginners Guides: Hard Drive Data Recovery - PCSTATS.com |
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| File Recovery and Data Recovery Software. Hard Drive recovery utility |
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| www.data-recovery-software.net |
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| Data recovery - Wikipedia, the free encyclopedia |
| Data recovery is the process of salvaging data from damaged, failed, ... Although there is some confusion as to the term, data recovery can also be the ... |
| en.wikipedia.org |
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| Active@ UNDELETE Data Recovery. Recover Deleted Files. Windows XP ... |
| Active@ UNDELETE - Data Recovery Software for all Windows File Systems. Recover deleted files from lost, damaged, formatted or reformatted partitions. |
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| New Zealand Data Recovery & Computer Forensics Experts |
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| Canada Data Recovery Services: Hard Disk Drive Recovery, Raid Data ... |
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