2FA: The Rise of Two-Factor Authentication

Two-factor authentication has gotten lots of attention lately. It's being praised as a way to help eliminate passwords and already has several major companies adapting their practices to use it. Let me guide you through the world of 2FA, some of the basic concepts (with examples) and dive deeper into the associated protocols and RFCs.

@ PHP Master Series, Vol 2

1. 2FA Chris Cornutt - PHP Master Series, Vol 2 The rise of two-factor authentication Wednesday, October 16, 2013
2. A Wednesday, October 16, 2013
3. A Wednesday, October 16, 2013
4. A USER & PASS Wednesday, October 16, 2013
5. A USER & PASS SECURITY QUESTIONS Wednesday, October 16, 2013
6. A USER & PASS SECURITY QUESTIONS ? Wednesday, October 16, 2013
7. Identity is hard Wednesday, October 16, 2013
8. Wednesday, October 16, 2013
9. ? who? Wednesday, October 16, 2013
10. Know Wednesday, October 16, 2013
11. Know Have Wednesday, October 16, 2013
12. Know Have Are Wednesday, October 16, 2013
13. Know Have Are ...and sometimes where Wednesday, October 16, 2013
14. 1 2 3 4 5 6 7 8 9 0 + Wednesday, October 16, 2013
15. ))) Wednesday, October 16, 2013
16. Wednesday, October 16, 2013
17. Wednesday, October 16, 2013
18. 2Fa myths Wednesday, October 16, 2013
19. it’s a “quick fix” Wednesday, October 16, 2013
20. it’s not easy to break Wednesday, October 16, 2013
21. too many similarities Wednesday, October 16, 2013
22. just for compliance... Wednesday, October 16, 2013
23. 2Fa advantages Wednesday, October 16, 2013
24. safer than just passwords (duh) Wednesday, October 16, 2013
25. defense in depth Wednesday, October 16, 2013
26. increase customer confidence Wednesday, October 16, 2013
27. 2Fa disadvantages Wednesday, October 16, 2013
28. yet another device? Wednesday, October 16, 2013
29. not cost effective Wednesday, October 16, 2013
30. harder for users Wednesday, October 16, 2013
31. 2Fa flow Wednesday, October 16, 2013
32. Wednesday, October 16, 2013
33. 1. user creates account (user/pass) Wednesday, October 16, 2013
34. 1. user creates account (user/pass) 2. user configures 2FA device Wednesday, October 16, 2013
35. 1. user creates account (user/pass) 2. user configures 2FA device 3. confirmation code sent Wednesday, October 16, 2013
36. 1. user creates account (user/pass) 2. user configures 2FA device 3. confirmation code sent 4. site requests code as validation Wednesday, October 16, 2013
37. 1. user creates account (user/pass) 2. user configures 2FA device 3. confirmation code sent 4. site requests code as validation Device configured, code sent on login Wednesday, October 16, 2013
38. Wednesday, October 16, 2013
39. 1. user creates account (user/pass) Wednesday, October 16, 2013
40. 1. user creates account (user/pass) 2. user configures 2FA device Wednesday, October 16, 2013
41. 1. user creates account (user/pass) 2. user configures 2FA device 3. user set up with 3rd party Wednesday, October 16, 2013
42. 1. user creates account (user/pass) 2. user configures 2FA device 3. user set up with 3rd party 4. 3rd party validates user Wednesday, October 16, 2013
43. 1. user creates account (user/pass) 2. user configures 2FA device 3. user set up with 3rd party 4. 3rd party validates user Device configured, 3rd party request Wednesday, October 16, 2013
44. 2Fa options Wednesday, October 16, 2013
45. Wednesday, October 16, 2013
46. 2Fa tech Wednesday, October 16, 2013
47. Google Authenticator Wednesday, October 16, 2013
48. Google Authenticator Wednesday, October 16, 2013
49. Google Authenticator HMAC-based OTP Wednesday, October 16, 2013
50. Google Authenticator HMAC-based OTP RFC 4226 Wednesday, October 16, 2013
51. Google Authenticator HMAC-based OTP RFC 4226 Time-based OTP Wednesday, October 16, 2013
52. Google Authenticator HMAC-based OTP RFC 4226 Time-based OTP RFC 6238 Wednesday, October 16, 2013
53. Google Authenticator HMAC-based OTP RFC 4226 Time-based OTP RFC 6238 base32 encoded Wednesday, October 16, 2013
54. Google Authenticator HMAC-based OTP RFC 4226 Time-based OTP RFC 6238 base32 encoded sha1 HMAC hashed Wednesday, October 16, 2013
55. enygma/gauth : dev-master <?php require_once ‘vendor/autoload.php’; $userCode = ‘123456’; $initCode = ‘...’; $verify = $g->validateCode($code); var_dump($verify); // boolean Wednesday, October 16, 2013
56. Yubikey Wednesday, October 16, 2013
57. Yubikey Wednesday, October 16, 2013
58. Yubikey API validated request Wednesday, October 16, 2013
59. Yubikey API validated request OTP + Nonce + Client ID Wednesday, October 16, 2013
60. Yubikey API validated request OTP + Nonce + Client ID Signature Wednesday, October 16, 2013
61. Yubikey API validated request OTP + Nonce + Client ID Signature Unique 44 characters Wednesday, October 16, 2013
62. Yubikey API validated request OTP + Nonce + Client ID Signature Unique 44 characters 128-bit AES OTP Wednesday, October 16, 2013
63. enygma/yubikey : dev-master <?php require_once ‘vendor/autoload.php’; $apiKey = ‘dGVzdG1uZzEyMzQ1Njc40TA=’; $clientId = ‘12345’; $v = new \Yubikey\Validate($apiKey, $clientId); $response = $v->check($inputtedKey); echo ($response->success() === true) ? 'success!' : 'you failed. aw.'; Wednesday, October 16, 2013
64. Duo Security Wednesday, October 16, 2013
65. Duo Security Wednesday, October 16, 2013
66. Duo Security Hosted service (API) Wednesday, October 16, 2013
67. Duo Security Hosted service (API) OTP codes Wednesday, October 16, 2013
68. Duo Security Hosted service (API) OTP codes SMS messaging Wednesday, October 16, 2013
69. Duo Security Hosted service (API) OTP codes SMS messaging Phone callback Wednesday, October 16, 2013
70. Duo Security Hosted service (API) OTP codes SMS messaging Phone callback Push notifications Wednesday, October 16, 2013
71. Duo Security Hosted service (API) OTP codes SMS messaging Phone callback Push notifications NIST certified Wednesday, October 16, 2013
72. enygma/duoauth : v1.0 <?php require_once ‘vendor/autoload.php’; $user = new \DuoAuth\User(); if ($user->validateCode(‘username’, $code)) { echo ‘success!’; } Wednesday, October 16, 2013
73. Authy Wednesday, October 16, 2013
74. Authy Wednesday, October 16, 2013
75. Authy API validated request Wednesday, October 16, 2013
76. Authy API validated request One time password Wednesday, October 16, 2013
77. Authy API validated request One time password Bluetooth pairing Wednesday, October 16, 2013
78. Authy API validated request One time password Bluetooth pairing SMS messaging Wednesday, October 16, 2013
79. Authy API validated request One time password Bluetooth pairing SMS messaging Works with other OTP codes Wednesday, October 16, 2013
80. Authy API validated request One time password Bluetooth pairing SMS messaging Works with other OTP codes Wednesday, October 16, 2013
81. Twilio Wednesday, October 16, 2013
82. http://www.twilio.com/docs/howto/two-factor-authentication <?php $password = substr(md5(time().rand(0, 10^10)), 0, 10); $content = ‘Your new password is ‘.$password; $client = new Services_Twilio($acctSid, $token); $client->account->sms_messages->create( ‘from-phone-number’, ‘to-phone-number’, $content ); // store code, verify when user returns Wednesday, October 16, 2013
83. Custom Wednesday, October 16, 2013
84. Custom Internal implementation SMS send through service Internal authorization Custom auth requirements intact Wednesday, October 16, 2013
85. enough? but is it Wednesday, October 16, 2013
86. Wednesday, October 16, 2013
87. Weak passwords are still a problem Wednesday, October 16, 2013
88. Weak passwords are still a problem Why stop at two? Wednesday, October 16, 2013
89. Weak passwords are still a problem Why stop at two? Other options aren’t as strong, but help Wednesday, October 16, 2013
90. Wednesday, October 16, 2013
91. the unfortunate truth is that passwords are here to stay... Wednesday, October 16, 2013
92. Wednesday, October 16, 2013
93. Thanks! Wednesday, October 16, 2013
94. Thanks! Questions? Wednesday, October 16, 2013
95. Thanks! Questions? @enygma Wednesday, October 16, 2013
96. Thanks! Questions? @enygma http://websec.io/tagged/twofactor Wednesday, October 16, 2013
97. Thanks! Questions? @enygma http://websec.io/tagged/twofactor http://joind.in/9750 Wednesday, October 16, 2013