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(Node.js) TOTP Algorithm: Time-Based One-Time Password AlgorithmDemonstrates how to generate an time-based one-time password (TOTP) as specified in RFC 6238. This is the algorithm used by Google Authenticator. Note: This example requires Chilkat v9.5.0.77 or greater.
var os = require('os'); if (os.platform() == 'win32') { if (os.arch() == 'ia32') { var chilkat = require('@chilkat/ck-node21-win-ia32'); } else { var chilkat = require('@chilkat/ck-node21-win64'); } } else if (os.platform() == 'linux') { if (os.arch() == 'arm') { var chilkat = require('@chilkat/ck-node21-arm'); } else if (os.arch() == 'x86') { var chilkat = require('@chilkat/ck-node21-linux32'); } else { var chilkat = require('@chilkat/ck-node21-linux64'); } } else if (os.platform() == 'darwin') { if (os.arch() == 'arm64') { var chilkat = require('@chilkat/ck-node21-mac-m1'); } else { var chilkat = require('@chilkat/ck-node21-macosx'); } } function chilkatExample() { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. var crypt = new chilkat.Crypt2(); // Duplicate the following results from RFC 6238 // TOTP Algorithm: Test Values // // +-------------+--------------+------------------+----------+--------+ // | Time (sec) | UTC Time | Value of T (hex) | TOTP | Mode | // +-------------+--------------+------------------+----------+--------+ // | 59 | 1970-01-01 | 0000000000000001 | 94287082 | SHA1 | // | | 00:00:59 | | | | // | 59 | 1970-01-01 | 0000000000000001 | 46119246 | SHA256 | // | | 00:00:59 | | | | // | 59 | 1970-01-01 | 0000000000000001 | 90693936 | SHA512 | // | | 00:00:59 | | | | // | 1111111109 | 2005-03-18 | 00000000023523EC | 07081804 | SHA1 | // | | 01:58:29 | | | | // | 1111111109 | 2005-03-18 | 00000000023523EC | 68084774 | SHA256 | // | | 01:58:29 | | | | // | 1111111109 | 2005-03-18 | 00000000023523EC | 25091201 | SHA512 | // | | 01:58:29 | | | | // | 1111111111 | 2005-03-18 | 00000000023523ED | 14050471 | SHA1 | // | | 01:58:31 | | | | // | 1111111111 | 2005-03-18 | 00000000023523ED | 67062674 | SHA256 | // | | 01:58:31 | | | | // | 1111111111 | 2005-03-18 | 00000000023523ED | 99943326 | SHA512 | // | | 01:58:31 | | | | // | 1234567890 | 2009-02-13 | 000000000273EF07 | 89005924 | SHA1 | // | | 23:31:30 | | | | // | 1234567890 | 2009-02-13 | 000000000273EF07 | 91819424 | SHA256 | // | | 23:31:30 | | | | // | 1234567890 | 2009-02-13 | 000000000273EF07 | 93441116 | SHA512 | // | | 23:31:30 | | | | // | 2000000000 | 2033-05-18 | 0000000003F940AA | 69279037 | SHA1 | // | | 03:33:20 | | | | // | 2000000000 | 2033-05-18 | 0000000003F940AA | 90698825 | SHA256 | // | | 03:33:20 | | | | // | 2000000000 | 2033-05-18 | 0000000003F940AA | 38618901 | SHA512 | // | | 03:33:20 | | | | // | 20000000000 | 2603-10-11 | 0000000027BC86AA | 65353130 | SHA1 | // | | 11:33:20 | | | | // | 20000000000 | 2603-10-11 | 0000000027BC86AA | 77737706 | SHA256 | // | | 11:33:20 | | | | // | 20000000000 | 2603-10-11 | 0000000027BC86AA | 47863826 | SHA512 | // | | 11:33:20 | | | | // +-------------+--------------+------------------+----------+--------+ // Seed for HMAC-SHA1 var seed = "3132333435363738393031323334353637383930"; // Seed for HMAC-SHA256 - 32 bytes var seed32 = "3132333435363738393031323334353637383930313233343536373839303132"; // Seed for HMAC-SHA512 - 64 bytes var seed64 = "31323334353637383930313233343536373839303132333435363738393031323334353637383930313233343536373839303132333435363738393031323334"; // See the online reference documentation for an explanation of arguments. console.log("TOTP(59,sha1) " + crypt.Totp(seed,"hex","0","59",30,8,-1,"sha1")); console.log("TOTP(59,sha256) " + crypt.Totp(seed32,"hex","0","59",30,8,-1,"sha256")); console.log("TOTP(59,sha512) " + crypt.Totp(seed64,"hex","0","59",30,8,-1,"sha512")); console.log("TOTP(1111111109,sha1) " + crypt.Totp(seed,"hex","0","1111111109",30,8,-1,"sha1")); console.log("TOTP(1111111109,sha256) " + crypt.Totp(seed32,"hex","0","1111111109",30,8,-1,"sha256")); console.log("TOTP(1111111109,sha512) " + crypt.Totp(seed64,"hex","0","1111111109",30,8,-1,"sha512")); console.log("TOTP(1111111111,sha1) " + crypt.Totp(seed,"hex","0","1111111111",30,8,-1,"sha1")); console.log("TOTP(1111111111,sha256) " + crypt.Totp(seed32,"hex","0","1111111111",30,8,-1,"sha256")); console.log("TOTP(1111111111,sha512) " + crypt.Totp(seed64,"hex","0","1111111111",30,8,-1,"sha512")); console.log("TOTP(1234567890,sha1) " + crypt.Totp(seed,"hex","0","1234567890",30,8,-1,"sha1")); console.log("TOTP(1234567890,sha256) " + crypt.Totp(seed32,"hex","0","1234567890",30,8,-1,"sha256")); console.log("TOTP(1234567890,sha512) " + crypt.Totp(seed64,"hex","0","1234567890",30,8,-1,"sha512")); console.log("TOTP(2000000000,sha1) " + crypt.Totp(seed,"hex","0","2000000000",30,8,-1,"sha1")); console.log("TOTP(2000000000,sha256) " + crypt.Totp(seed32,"hex","0","2000000000",30,8,-1,"sha256")); console.log("TOTP(2000000000,sha512) " + crypt.Totp(seed64,"hex","0","2000000000",30,8,-1,"sha512")); console.log("TOTP(20000000000,sha1) " + crypt.Totp(seed,"hex","0","20000000000",30,8,-1,"sha1")); console.log("TOTP(20000000000,sha256) " + crypt.Totp(seed32,"hex","0","20000000000",30,8,-1,"sha256")); console.log("TOTP(20000000000,sha512) " + crypt.Totp(seed64,"hex","0","20000000000",30,8,-1,"sha512")); // Note: To compute the TOTP using the current system date/time, pass an empty string instead of an explicit time. // For example: console.log("TOTP(CurrentSystemTime,sha1) " + crypt.Totp(seed,"hex","0","",30,8,-1,"sha1")); console.log("TOTP(CurrentSystemTime,sha256) " + crypt.Totp(seed32,"hex","0","",30,8,-1,"sha256")); console.log("TOTP(CurrentSystemTime,sha512) " + crypt.Totp(seed64,"hex","0","",30,8,-1,"sha512")); } chilkatExample(); |
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