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Firstly: RSA is computationally complex algorithm and should not be used to encrypt large data. RSA keys can be created with trusted third party. But is the system is in house then you can generate few keys through following technique shown here However it is not recommended to use static set of keys for RSA (as there are security trade offs for reusing the ...


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First, a bit of background. If we refer to the size of an elliptic curve group as $n$, we select an elliptic curve with $n = hq$, where $q$ is a large prime, and $h$ is a small integer called the cofactor; it is typically either 1, 4 or 8. The values of $q$ and $h$ will be part of the curve definition. As you know, with straight DH, we agree on a point ...


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KDFs like PBKDF2 are a work multiplier but they can't get blood from a stone. A PBKDF2 using 10,000 rounds "slows" the attacker down by requiring each "guess" to take 10,000 hashes instead of 1. The problem is that passwords like the ones you described are so weak a 10,000x increase in cracking time is like going from 1 ms to 10 seconds. It really isn't ...


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Would this help preventing brute force attacks? It would slow down an attacker and prevent them from trying as many password guesses. E.g. if you used 1000 rounds like in RFC 2898, you would reduce the number of guesses by a factor of 1000. Assuming you count dictionary attacks under brute force attacks, such attacks would definitely not be completely ...



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