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(Unicode C) Generate TOTP using Base32 Secret (6 Digits, Time-based, 30-second period)Generates a 6-digit time-based TOTP code using a base32 secret with a 30-second time period.
#include <C_CkCrypt2W.h> #include <C_CkStringBuilderW.h> void ChilkatSample(void) { HCkCrypt2W crypt; const wchar_t *secretKey; HCkStringBuilderW sbKey; BOOL success; int numRemoved; int numDigits; int timePeriod; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. // crypt = CkCrypt2W_Create(); // Base32 secret key: secretKey = L"oebf ytfl qmzb p4xd 2ztf zyz4 hjrw 3uyo"; sbKey = CkStringBuilderW_Create(); success = CkStringBuilderW_Append(sbKey,secretKey); // Remove SPACE chars. numRemoved = CkStringBuilderW_Replace(sbKey,L" ",L""); // Note: A new token is generated every 30 seconds. You must generate within the same 30 second interval to get the same result. // Generate 6 digits. numDigits = 6; // 30 second time period. timePeriod = 30; wprintf(L"Your token is: %s\n",CkCrypt2W_totp(crypt,CkStringBuilderW_getAsString(sbKey),L"base32",L"0",L"",timePeriod,numDigits,-1,L"sha1")); CkCrypt2W_Dispose(crypt); CkStringBuilderW_Dispose(sbKey); } |
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