Hash Values SHA512

[Guest]

I am developing an application which allows users to create transactions
using excel and uploading the transactions using a .csv text file. I am
using System.Security.Cryptography.SHA512 to create a hash value saved in am
SQL 2000 database. My user has asked me what is the probability that two
different text files will yield the same hash result.

Does anyone have a good answer for that?

 

[Kevin Jones]

It's about 1 in 2^256