How to get user data from encrypted hash on sql server 2017?

Transact-SQL
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1

How to extract data from hashbyte text after hash or encrypted on SQL

how to extract data from hashbyte text after hash or encrypted on sql server 2017 ?

I work on sql server 2017 i have field nvarchar(max) store values hashbytes

suppose i have text as username:sayed password:321

and i hash it by using hashbyte

so after hashing by using hashbyte

i need to extract data from it

meaning i need to get data of user as

username:sayed password:321

so how to extract data from field hashed by using hashbyte sql server 2017

meaning

How to get data password:321

i hash my text as below

select HASHBYTES('SHA2_512','username:sayed password:321')

how to get text

username:sayed password:321

from hashed below

0x11AF8281C1FB70097586CDCA6A9B2CA35BCC464CCD4F57D3C1D347371EB8433015080669AE93141D8A170822BB803CC36015841ED3BA853D322201C4A25F9E8D

2

By design, hashing is a one-way function, it can't be decrypted like an encryption function can. In order to recover information from a hashed value you'd have to generate the plaintext value by brute force and hash it so you could compare it to the stored hash.

3

By design, hashing is a one-way function, it can't be decrypted like an encryption function can. In order to recover information from a hashed value you'd have to generate the plaintext value by brute force and hash it so you could compare it to the stored hash.