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(Unicode C) 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.
#include <C_CkCrypt2W.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *storedHash; const wchar_t *password; BOOL passwordValid; // This example assumes the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. crypt = CkCrypt2W_Create(); storedHash = L"$2a$10$H5kIVktMGzAPKGKNAe9DVu0iwEqfhv/o4MMJ/Dzw/MPy1leOE9NOK"; password = L"mySecretPassword"; passwordValid = CkCrypt2W_BCryptVerify(crypt,password,storedHash); if (passwordValid == TRUE) { wprintf(L"%s is valid.\n",password); } else { wprintf(L"%s is NOT valid.\n",password); } password = L"notAValidPassword"; passwordValid = CkCrypt2W_BCryptVerify(crypt,password,storedHash); if (passwordValid == TRUE) { wprintf(L"%s is valid.\n",password); } else { wprintf(L"%s is NOT valid.\n",password); } // Output should be: // mySecretPassword is valid. // notAValidPassword is NOT valid. CkCrypt2W_Dispose(crypt); } |
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