PTTP Systems

If you use a computer today to buy anything over the internet then you are the end user of cryptographic algorithms. If you feel that you don't need to worry about the implementation of your cryptography, well, you are probably right. You may have read the news about how the MD5 cryptographic hash function is not as secure (collision resistant) as we used to think. Weaknesses in the SHA1 cryptographic hash function have also been found although SHA1 has fared somewhat better than MD5. That news causes people like me enough concern to track the progress of those attacks but so far there is no public indication that a disaster is at hand.

Click to read more ...