meta user
network profile
| bio | website | woliveirajr.com |
|---|---|---|
| location | Curitiba, Brazil | |
| age | 34 | |
| visits | member for | 1 year, 9 months |
| seen | 4 hours ago | |
| stats | profile views | 9 |
Computer analyst
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May 9 |
answered | What kind of adversary is the cloud? |
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Aug 3 |
awarded | Yearling |
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Jul 26 |
comment |
Are mouse movement coordinates useful as a seed for a RNG? improve your accept rate.... |
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Jun 15 |
comment |
Difference between encrypting something and hashing something @moderation: please, make this question a sugested similar question to every new question that asks about encryption or hashing. We're full of "how to encrypt with MD5" and so on. |
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Jun 15 |
comment |
Tunnels used in md5 Perhaps it's not that paper/idea he was discussing in the original question, but it was so vague that I tried to fix it. But I'm not sure I could... :( |
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Jun 14 |
revised |
Tunnels used in md5 re-made the question |
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Jun 14 |
suggested | suggested edit on Tunnels used in md5 |
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Jun 14 |
comment |
Tunnels used in md5 I think he is talking about the "tunnel attack" on the MD5 hash: cryptography.hyperlink.cz/2006/Tunnels.pdf |
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Mar 22 |
answered | Is a subset of a random set still random? |
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Mar 6 |
answered | HASH Algorithm for 8 bits MCU |
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Feb 24 |
comment |
How to generate one-time password Hum, could be easier if instead of saying the solution you're considering, you tell us what is your problem and then the solution you're thiking about, and problems you have with it... |
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Nov 30 |
comment |
Is it a good idea to use bitwise XOR on a set of MD5 sums? @paulo: but the OP doesn't want protection, collison resistance... it's barely a crypto question, it's much more the use (and collison possibility) using MD5 |
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Nov 30 |
revised |
Is it a good idea to use bitwise XOR on a set of MD5 sums? improved question - added bold to the relevant part |
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Nov 30 |
suggested | suggested edit on Is it a good idea to use bitwise XOR on a set of MD5 sums? |
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Nov 30 |
comment |
Is it a good idea to use bitwise XOR on a set of MD5 sums? I understood that the OP is looking for a "given my data, I want to extract subsets. Can I use MD5 with XOR to verify if the subset contains the same content, without having to worry the about their order ?". Collisions would be a problem of giving false positives. And this has very little to do with crypto... using MD5 and XOR doesn't mean he wants security, secrecy... |
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Nov 30 |
comment |
Is it a good idea to use bitwise XOR on a set of MD5 sums? If you do some research in previous questions (in crypt, or in stackoverflow, etc) that there's always a possibility that you have some collision, but it's very unlikely, and then you deal with it with different approaches if having a collision is a no-go for you... |
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Nov 24 |
answered | Is a book cipher provably secure? |
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Nov 23 |
comment |
How can I create a fixed length output in my hash function? Fixed-length: the output size is constant, no matter the size of the input. So, no matter how many bytes are processed, you'll have the output of 3 bytes: a + b +c (concatenated, not added). And even if your input is smaller than 3 bytes, the output will be 3 bytes. |
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Nov 23 |
answered | How can I create a fixed length output in my hash function? |
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Nov 23 |
comment |
Desirable S-box properties let us continue this discussion in chat |
