(SQL Server) BCrypt Hash a Password

Example to BCrypt hash a password.

Note: This example requires Chilkat v9.5.0.65 or greater.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

-- Important: See this note about string length limitations for strings returned by sp_OAMethod calls.
--
CREATE PROCEDURE ChilkatSample
AS
BEGIN
    DECLARE @hr int
    -- This example assumes the Chilkat API to have been previously unlocked.
    -- See Global Unlock Sample for sample code.

    DECLARE @crypt int
    -- Use "Chilkat_9_5_0.Crypt2" for versions of Chilkat < 10.0.0
    EXEC @hr = sp_OACreate 'Chilkat.Crypt2', @crypt OUT
    IF @hr <> 0
    BEGIN
        PRINT 'Failed to create ActiveX component'
        RETURN
    END

    -- The BCrypt cost factor (work factor) can be set to a value from 4 to 31.
    -- The default value is 10.  We'll set it here explicitly to the default value
    -- to make this new property known.  This line of code can be omitted
    -- if the default value of 10 is desired.
    EXEC sp_OASetProperty @crypt, 'BCryptWorkFactor', 10

    DECLARE @bcryptHash nvarchar(4000)
    EXEC sp_OAMethod @crypt, 'BCryptHash', @bcryptHash OUT, 'mySecretPassword'

    PRINT 'BCrypt hash = ' + @bcryptHash

    -- Sample output:
    -- BCrypt hash = $2a$10$H5kIVktMGzAPKGKNAe9DVu0iwEqfhv/o4MMJ/Dzw/MPy1leOE9NOK

    -- Note: Your output will be different because the BCryptHash method
    -- automatically generates a random salt. 

    EXEC @hr = sp_OADestroy @crypt


END
GO