(Lianja) BCrypt Verify a Password (Check if Password is Correct)

A system that uses BCrypt for storing passwords would not store the actual password, but would instead store the bcrypt hash of the password. When a user presents the password, such as for login, call BCryptVerify to verify the password against the stored bcrypt hash.

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

Chilkat Lianja Extension Download Chilkat Lianja Extension

// This example assumes the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loCrypt = createobject("CkCrypt2")

lcStoredHash = "$2a$10$H5kIVktMGzAPKGKNAe9DVu0iwEqfhv/o4MMJ/Dzw/MPy1leOE9NOK"
lcPassword = "mySecretPassword"

llPasswordValid = loCrypt.BCryptVerify(lcPassword,lcStoredHash)
if (llPasswordValid = .T.) then
    ? lcPassword + " is valid."
else
    ? lcPassword + " is NOT valid."
endif

lcPassword = "notAValidPassword"
llPasswordValid = loCrypt.BCryptVerify(lcPassword,lcStoredHash)
if (llPasswordValid = .T.) then
    ? lcPassword + " is valid."
else
    ? lcPassword + " is NOT valid."
endif

// Output should be:

// 	mySecretPassword is valid.
// 	notAValidPassword is NOT valid.


release loCrypt