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Is there a build in library in .NET that can compute secure one-way hash ? I mean a library that implements SHA-2 cryptographic hash function or something similar.
If is there is no SHA-2 implementation some weaker hash funcion would be sufficient.
If there are more options I prefer the most secure one.
Please provide a use example e.g. provide the code that returns one-way hash for string mySampleString.
EDIT: Please provide the example and the hash algorithm used.
You can use the SHA256Mananged class to generate a hash of a string. The ComputeHash documentation provides a complete example.
If you are targeting Vista+ only, you can use the faster SHA256Cng class instead. Just realize that it will throw on XP.