Hey there guys… !!!
I’m back after a long long time….. Those who know me, know the reason for this outage….. And for those who are new to this site… well.. this is Ne0.
So let me now start with my today’s post… As you all might have already read the title…. Malicious Cryptography… or Cryptovirology. Ever heard this word before ??? Those who are aware of this term, must be aware of its concept and working. And those who are unaware, read on…………..
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Similar to last year, FBI has arranged second round of Cryptanalysis contest.
Hope someone would find this interesting!!
Recently researches were able to find a loop hole in SSL certificate implementation which could could make any secure website (relying on md5 hashing of CA certificates) vulnerable to nearly undetectable phishing attack.
To brief the attack:
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Cryptography, Cybercrime, Information Security, Network Security, Phishing | w0lf | January 1, 2009 | 
Comments (2)
Cryptography, Encryption, netbanking, phishing, PKI, spoofing, SSL certificates
Enigma Machine
Hi there everybody !
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Hula Guys….I’m back with yet another topic on cryptography. This time, it’s cryptographic file systems. Securing data is more important than ever. As the Internet has become more pervasive, security attacks have grown. Widely-available studies report millions of dollars of lost revenues due to security breaches. As security becomes a greater focus in networks, every aspect of online information needs a level of protection from the network-level use of firewalls and IDS to the host-level use of IDS. But these days, an additional level of security has come on the forefront of information security field. Cryptographic File Systems.
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Hi !
Today I’m going to discuss about MD5 Collision Attack. But before proceeding, I’ll just give a brief on the HAsh function. A “hash” (also called a “digest”, and informally a “checksum”) is a kind of “signature” for a stream of data that represents the contents. The closest real-life analog we can think is “a tamper-evident seal on a software package”: if you open the box (change the file), it’s detected.
So what is an MD5 Collision Attack and how is it constructed ?? Before going at this stage, let me first explain what hashing really means ! The very first point here is, to understand that hashing is NOT encryption. This is a common confusion, especially because all these words are in the category of “cryptography”, but it’s important to understand the difference. “Encryption” transforms data from a cleartext to ciphertext and back (given the right keys). Thus we see that “Encryption” is a two-way operation. Hashes, on the other hand, are stream of data into small digest, and it’s strictly a one way operation. All hashes of the same type – (this example shows the “MD5″ variety) – have the same size no matter how big the inputs are.
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