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Create your own virus

A computer virus is a computer program that can copy itself and infect a computer. The term "virus" is also commonly but erroneously used to refer to other types of malware including but not limited to adware and spyware programs that do not have the reproductive ability. A true virus can spread from one computer to another (in some form of executable code) when its host is taken to the target computer; for instance because a user sent it over a network or the Internet, or carried it on a removable medium such as a floppy disk,CD,DVD, or USB drive

Man in the browser attack

The Man-in-the-Browser attack is the same approach as Man-in-the-middle attack, but in this case a Trojan Horse is used to intercept and manipulate calls between the main application’s executable (ex: the browser) and its security mechanisms or libraries on-the-fly.

Md5 Encryption

I have seen lots of people who are new to this information security field dnt know how to encrypt the text in md5 , here in my post i will tell you how to encrypt your desired text into md5

Google Two Way Verification

Google had previously announced the new 2-step verification for Google apps users. The same is now being rolled out to all the Google account users

Showing posts with label Hash. Show all posts
Showing posts with label Hash. Show all posts

Sunday, April 24, 2011

Secure Hash Algorithm

6:42 PM Anonymous No comments


The Secure Hash Algorithm is one of a number of cryptographic hash functions published by the National Institute of Standards and Technology as a U.S. Federal Information Processing Standard:
SHA-0
A new name applied to the original version of the 160-bit hash function published in 1993 under the name "SHA". It was withdrawn shortly after publication due to an undisclosed "significant flaw" and replaced by the slightly revised version SHA-1.
SHA-1
A 160-bit hash function which resembles the earlier MD5 algorithm. This was designed by the National Security Agency (NSA) to be part of the Digital Signature Algorithm.
SHA-2
A family of two similar hash functions, with different block sizes, known as SHA-256 and SHA-512. They differ in the word size; SHA-256 uses 32-byte(256 bits) words where SHA-512 uses 64-byte(512 bits) words. There are also truncated versions of each standardized, known as SHA-224 and SHA-384. These were also designed by the NSA.
SHA-3
A proposed hash function standard still in development. This is being chosen in a public review process from non-government designers. An ongoing NIST hash function competition is scheduled to end with the selection of a winning function, which will be given the name SHA-3 in 2012.
The corresponding standards have been FIPS PUB 180 (original SHA), FIPS PUB 180-1 (SHA-1), FIPS PUB 180-2 (SHA-1, SHA-256, SHA-384, and SHA-512), FIPS PUB 180-3 (SHA-1, SHA-224, SHA-256, SHA-384, and SHA-512).

Source : google .. 
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Updating Hash Security: NIST SHA-3

6:33 PM Anonymous No comments

The NIST (National Institute of Standards and Technology) is holding a competition aimed at finding the best possible replacement for the cureent SHAs (Secure Hash Algorithms) — SHA-1 and SHA-2. Cryptographers are submitting new mathematical algorithms in order to develop a more secure and robust substitute that will strengthen the hash functions that are used in digital signatures, call-message authentication and several other secure protocols on the Internet that help prevent attacks and keep digital information secure


The NIST (National Institute of Standards and Technology) is holding a competition aimed at finding the best possible replacement for the cureent SHAs (Secure Hash Algorithms) — SHA-1 and SHA-2. Cryptographers are submitting new mathematical algorithms in order to develop a more secure and robust substitute that will strengthen the hash functions that are used in digital signatures, call-message authentication and several other secure protocols on the Internet that help prevent attacks and keep digital information secure
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