1. Mozilla Persona is a proposed decentralized and privacy-protecting login system that uses email addresses as identifiers and aims to replace passwords on the entire web. 2. Passwords are difficult for users to secure and remember, making them problematic as primary login credentials. Persona aims to solve these problems by leveraging existing email identities in a simple and cross-browser compatible way. 3. Developers can easily add support for Persona login to their sites in just a few steps by including a JavaScript library and setting up login/logout callbacks without needing an API key.

1. François Marier – @fmarier
Mozilla Persona
a federated and privacy-protecting
login system for the whole Web

2. passwords

3. problem #1:
passwords are hard to secure

14. bcrypt / scrypt / pbkdf2
per-user salt
site secret
password & lockout policies
secure recovery

15. bcrypt / scrypt / pbkdf2
per-user salt
site secret
password & lockout policies
secure recovery

16. bcrypt / scrypt / pbkdf2
per-user salt
site secret
password & lockout policies
secure recovery

17. bcrypt / scrypt / pbkdf2
per-user salt
site secret
password & lockout policies
secure recovery

18. bcrypt / scrypt / pbkdf2
per-user salt
site secret
password & lockout policies
secure recovery

19. bcrypt / scrypt / pbkdf2
per-user salt
site secret
password & lockout policies
secure recovery
2013
2013
password
password
guidelines
guidelines

20. passwords are hard to secure
they are a liability

21. ALTER TABLE user
DROP COLUMN password;

22. problem #2:
passwords are hard to remember

25. pick an easy password

26. pick an easy password
use it everywhere

27. passwords are hard to remember
they need to be reset

29. control
email
account
control
all
accounts
=

31. “People want a little
dating before marriage.”
Eric Vishria – Rockmelt

33. decentralised

34. myid.com/u/francois

37. privacy®

38. existing login systems
are not good enough

39. ideal web-wide identity system

40. ●
decentralised
●
simple
●
cross-browser
ideal web-wide identity system

41. ●
decentralised
●
simple
●
cross-browser
ideal web-wide identity system

42. ●
decentralised
●
simple
cross-browser
ideal web-wide identity system

43. what if it were a standard
part of the web browser?

45. how does it work?

46. fmarier@gmail.com

47. why email addresses?

48. why email addresses?
already federated
people know their email
natural association between person & email
easy to have separate identities
most sites need a way to contact users
no lock-in

49. why email addresses?
already federated
people know their email
natural association between person & email
easy to have separate identities
most sites need a way to contact users
no lock-in

50. why email addresses?
already federated
people know their email
natural association between person & email
easy to have separate identities
most sites need a way to contact users
no lock-in

51. why email addresses?
already federated
people know their email
natural association between person & email
easy to have separate identities
most sites need a way to contact users
no lock-in

52. why email addresses?
already federated
people know their email
natural association between person & email
easy to have separate identities
most sites need a way to contact users
no lock-in

53. why email addresses?
already federated
people know their email
natural association between person & email
easy to have separate identities
most sites need a way to contact users
no lock-in

54. fmarier@gmail.com

55. demo #1:
http://www.voo.st/
fmariertest@eyedee.me

56. Persona is already a
decentralised system

57. decentralisation is the answer, but it's not
a product adoption strategy

58. we can't wait for all domains
to adopt Persona

59. we can't wait for all domains
to adopt Persona
solution: a temporary
centralised fallback

60. demo #2:
http://sloblog.io/
francoistest@web.de

61. Persona already works
with all email domains

62. identity bridging

63. demo #3:
http://www.reasonwell.com/
fmariertest@yahoo.com

67. Persona supports
all modern browsers
>= 8

68. Persona is decentralised,
simple and cross-browser

69. it's simple for users, but is it also
simple for developers?

71. <script src=”https://login.persona.org/include.js”>
</script>
</body></html>

72. navigator.id.watch({
loggedInEmail: “francois@mozilla.com”,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
// do something
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

73. navigator.id.watch({
loggedInUser: “francois@mozilla.com”,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
// do something
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

74. navigator.id.watch({
loggedInUser: null,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
// do something
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

75. navigator.id.watch({
loggedInUser: null,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
// do something
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

76. navigator.id.watch({
loggedInUser: null,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
window.location = '/';
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

78. navigator.id.request()

82. navigator.id.watch({
loggedInUser: null,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
window.location = '/';
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

83. eyJhbGciOiJEUzEyOCJ9.eyJwdWJsaWMta2V5Ijp7ImFsZ29yaXRobSI6IkRTIiwieSI6ImNhZDg2ZDg
yNWU0MjBkMGI4Njk5MjM4ZDM5ZTFjYjIyOGMyMTk1NWFiMzcwOTQ1YzExNzBhMzM4NjcyNDM0ZDJmNGY
xZDg5ZjFkZjMzNmU1ZjZjZjk2YjhiOTlmMjgyNmFjNTYxZmI1YWMyYTc4ZjNhMzBkNGYxNTVhYjc3ZGE
xYmY3MWU4ZGMzNjQ0MmU2NjQ3MmE5Mjg0N2I2YjFlNDRkMTJlM2IwMjVjOWZmNTFmNDdhMWE5ZWYyMGZ
hOTVjMTcxZjBkMTYzNGE4ZTY4YTk5NWU3ZjFjY2FiYTJlOTRjYTI3ODE1ZWVkMTcxYjY1YTJmZGQzNTE
1NjY3OTI0ZjUiLCJwIjoiZmY2MDA0ODNkYjZhYmZjNWI0NWVhYjc4NTk0YjM1MzNkNTUwZDlmMWJmMmE
5OTJhN2E4ZGFhNmRjMzRmODA0NWFkNGU2ZTBjNDI5ZDMzNGVlZWFhZWZkN2UyM2Q0ODEwYmUwMGU0Y2M
xNDkyY2JhMzI1YmE4MWZmMmQ1YTViMzA1YThkMTdlYjNiZjRhMDZhMzQ5ZDM5MmUwMGQzMjk3NDRhNTE
3OTM4MDM0NGU4MmExOGM0NzkzMzQzOGY4OTFlMjJhZWVmODEyZDY5YzhmNzVlMzI2Y2I3MGVhMDAwYzN
mNzc2ZGZkYmQ2MDQ2MzhjMmVmNzE3ZmMyNmQwMmUxNyIsInEiOiJlMjFlMDRmOTExZDFlZDc5OTEwMDh
lY2FhYjNiZjc3NTk4NDMwOWMzIiwiZyI6ImM1MmE0YTBmZjNiN2U2MWZkZjE4NjdjZTg0MTM4MzY5YTY
xNTRmNGFmYTkyOTY2ZTNjODI3ZTI1Y2ZhNmNmNTA4YjkwZTVkZTQxOWUxMzM3ZTA3YTJlOWUyYTNjZDV
kZWE3MDRkMTc1ZjhlYmY2YWYzOTdkNjllMTEwYjk2YWZiMTdjN2EwMzI1OTMyOWU0ODI5YjBkMDNiYmM
3ODk2YjE1YjRhZGU1M2UxMzA4NThjYzM0ZDk2MjY5YWE4OTA0MWY0MDkxMzZjNzI0MmEzODg5NWM5ZDV
iY2NhZDRmMzg5YWYxZDdhNGJkMTM5OGJkMDcyZGZmYTg5NjIzMzM5N2EifSwicHJpbmNpcGFsIjp7ImV
tYWlsIjoiZm9vQG1vY2tteWlkLmNvbSJ9LCJpYXQiOjEzNzY1MzY0NjM1MTgsImV4cCI6MTM3NjU0MDA
2MzUxOCwiaXNzIjoibW9ja215aWQuY29tIn0.IeUR0_3ayAZkdNSXjF4aaCwSHnHa4X1lzrjX-qkNcPI
bXx1hmQQPwg~eyJhbGciOiJEUzEyOCJ9.eyJleHAiOjEzNzY1MzY3MDc2MzUsImF1ZCI6Imh0dHA6Ly9
sb2NhbGhvc3QifQ.NJ8H1qZcWXbXfPJSdgB_mORHQ442ZkY0XYfdQsZZsIjooG7k7qWyVw

84. navigator.id.watch({
loggedInUser: null,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
window.location = '/home';
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

85. def verify_assertion(assertion):
page = requests.post(
'https://verifier.login.persona.org/verify',
data={ "assertion": assertion,
"audience": 'http://123done.org'}
)
data = page.json
return data.status == 'okay'

86. def verify_assertion(assertion):
page = requests.post(
'https://verifier.login.persona.org/verify',
data={ "assertion": assertion,
"audience": 'http://123done.org'}
)
data = page.json
return data.status == 'okay'

87. def verify_assertion(assertion):
page = requests.post(
'https://verifier.login.persona.org/verify',
data={ "assertion": assertion,
"audience": 'http://123done.org'}
)
data = page.json
return data.status == 'okay'

88. {
status: “okay”,
audience: “http://123done.org”,
expires: 1344849682560,
email: “francois@mozilla.com”,
issuer: “login.persona.org”
}

89. {
status: “failed”,
reason: “assertion has expired”
}

92. navigator.id.logout()

93. navigator.id.watch({
loggedInUser: null,
onlogin: function (assertion) {
$.post('/login',
{assertion: assertion},
function (data) {
window.location = '/home';
}
);
},
onlogout: function () {
window.location = '/logout';
}
});

95. 1. load javascript library

96. 1. load javascript library
2. setup login & logout callbacks

97. 1. load javascript library
2. setup login & logout callbacks
3. add login and logout buttons

98. 1. load javascript library
2. setup login & logout callbacks
3. add login and logout buttons
4. verify proof of ownership

99. 1. load javascript library
2. setup login & logout callbacks
3. add login and logout buttons
4. verify proof of ownership
no API key
needed

100. you can add support for
Persona in four easy steps

101. one simple request

103. building a new site:
default to Persona

104. working on an existing site/app:
add support for Persona

105. before

106. after

107. after
navigator.id.request()

109. ALTER TABLE user
DROP COLUMN password;

110. To learn more about Persona:
https://login.persona.org/
http://identity.mozilla.com/
https://developer.mozilla.org/docs/Persona/Why_Persona
https://developer.mozilla.org/docs/Persona/Quick_Setup
https://github.com/mozilla/browserid-cookbook
https://developer.mozilla.org/docs/Persona/Libraries_and_plugins
http://123done.org/
https://wiki.mozilla.org/Identity#Get_Involved
@fmarier http://fmarier.org

111. identity provider API
https://eyedee.me/.well-known/browserid:
{
"public-key": {
"algorithm":"RS",
"n":"8606...",
"e":"65537"
},
"authentication": "/browserid/sign_in.html",
"provisioning": "/browserid/provision.html"
}

112. https://eyedee.me/.well-known/browserid:
{
"public-key": {
"algorithm":"RS",
"n":"8606...",
"e":"65537"
},
"authentication": "/browserid/sign_in.html",
"provisioning": "/browserid/provision.html"
}
identity provider API

113. https://eyedee.me/.well-known/browserid:
{
"public-key": {
"algorithm":"RS",
"n":"8606...",
"e":"65537"
},
"authentication": "/browserid/sign_in.html",
"provisioning": "/browserid/provision.html"
}
identity provider API

114. https://eyedee.me/.well-known/browserid:
{
"public-key": {
"algorithm":"RS",
"n":"8606...",
"e":"65537"
},
"authentication": "/browserid/sign_in.html",
"provisioning": "/browserid/provision.html"
}
identity provider API

115. https://eyedee.me/.well-known/browserid:
{
"public-key": {
"algorithm":"RS",
"n":"8606...",
"e":"65537"
},
"authentication": "/browserid/sign_in.html",
"provisioning": "/browserid/provision.html"
}
identity provider API

116. identity provider API
1. check for your /.well-known/browserid
2. try the provisioning endpoint
3. show the authentication page
4. call the provisioning endpoint again

117. identity provider API
1. check for your /.well-known/browserid
2. try the provisioning endpoint
3. show the authentication page
4. call the provisioning endpoint again

118. identity provider API
1. check for your /.well-known/browserid
2. try the provisioning endpoint
3. show the authentication page
4. call the provisioning endpoint again

119. identity provider API
1. check for your /.well-known/browserid
2. try the provisioning endpoint
3. show the authentication page
4. call the provisioning endpoint again

120. © 2013 François Marier <francois@mozilla.com>
This work is licensed under a
Creative Commons Attribution-ShareAlike 3.0 New Zealand License.
Hotel doorman: https://secure.flickr.com/photos/wildlife_encounters/8024166802/
Top 500 passwords: http://xato.net/passwords/more-top-worst-passwords/
Parchment: https://secure.flickr.com/photos/27613359@N03/6750396225/
Uncle Sam: https://secure.flickr.com/photos/donkeyhotey/5666065982/
Restaurant dinner: https://secure.flickr.com/photos/yourdon/3977084094/
Stop sign: https://secure.flickr.com/photos/artbystevejohnson/6673406227/
Photo credits: