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Results tagged with hash
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user 24688
A hash algorithm is a function which takes a variable size input and produces a fixed size output. The algorithm tries to make it difficult to predict the output for a given input, find two inputs with the same output, or reconstruct the input from the output.
12
votes
3
answers
13k
views
What does GUID have, that a Whirlpool, MD5 or SHA-2 hash don't?
In other words, why can't I use a Whirlpool hash like:
4bec4b25ff46e09f7d7adb5b4e6842f871d7e9670506d1a65af501cf96ddf194d0132b85e66c1baaeb5319f2030b607121aae2a038458d32b4d4b03dfd46d5ea
instead of a … I could even tailor the length using substrings of a Whirlpool hash and calculate the probability of collision myself instead of being restricted by GUID specification. …
- 770
3
votes
Accepted
Is it possible to insert data into UUID?
No UUID have a specific structure which doesn't take into account appending any custom user-generated information.
Also consider how bad this idea is, UUID are a type of identification which should s …
- 770