The document discusses the concept of identity, including personal identity and how identity is represented. It explores how identity has been represented historically through verbal means, trust and official documents/credentials. It then examines how modern digital identity systems work using usernames and passwords for authentication on individual sites, and how a more portable, interoperable digital identity system could function similarly to physical identity documents like a driver's license.

1. social
identity
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2. Friday, December 16, 11

3. Friday, December 16, 11

4. Friday, December 16, 11

5. start
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6. what is identity?
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7. who you are
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8. who am I?
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9. Friday, December 16, 11

10. Max Niederhofer
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11. Dr. Maximilian Georg Wilfried Jochen Niederhofer
(thanks, mom & dad)
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12. Friday, December 16, 11

13. Friday, December 16, 11

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25. Friday, December 16, 11

26. Friday, December 16, 11

27. Friday, December 16, 11

28. Friday, December 16, 11

29. June 26, 1978
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30. 33
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31. Over 18
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32. Over 21
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33. Over 25
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34. Under 65
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35. Friday, December 16, 11

36. Niederhofer Limited
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37. Founder
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38. CEO
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39. Board member
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40. Shareholder
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41. maxniederhofer.com
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42. facebook.com/maxniederhofer
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43. twitter.com/maxniederhofer
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44. linkedin.com/in/maxniederhofer
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45. Friday, December 16, 11

46. Friday, December 16, 11

47. max@niecap.com
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48. max.niederhofer@gmail.com
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49. Friday, December 16, 11

50. maxniederhofer@hotmail.com
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51. Friday, December 16, 11

52. maxniederhofer@mac.com
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53. Friday, December 16, 11

54. +44 7 837 838 227
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55. Friday, December 16, 11

56. Friday, December 16, 11

57. Friday, December 16, 11

58. identity is also
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59. what I like
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60. Friday, December 16, 11

61. Friday, December 16, 11

62. Friday, December 16, 11

63. Friday, December 16, 11

64. Friday, December 16, 11

65. Friday, December 16, 11

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69. Friday, December 16, 11

70. Friday, December 16, 11

71. Friday, December 16, 11

72. Friday, December 16, 11

73. identity
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74. how is it represented?
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75. historically
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76. verbal
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77. trust
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78. person
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79. patents of nobility
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80. Friday, December 16, 11

81. official papers
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82. trust
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83. local scale
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84. modern identity
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85. Friday, December 16, 11

86. Friday, December 16, 11

87. Friday, December 16, 11

88. trust
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89. global scale
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90. Friday, December 16, 11

91. Friday, December 16, 11

92. Over 18
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93. Friday, December 16, 11

94. what I say about me
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95. what others say about me
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96. (others more trusted)
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97. identity = reputation
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98. where is identity used?
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99. identity transactions
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100. verbal
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101. Friday, December 16, 11

102. Friday, December 16, 11

103. job application
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104. Friday, December 16, 11

105. unverified
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106. trust
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107. person
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108. verified?
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109. example
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110. Friday, December 16, 11

111. Friday, December 16, 11

112. Friday, December 16, 11

113. ID?
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114. choice
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115. present ID?
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116. which ID?
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117. Friday, December 16, 11

118. Friday, December 16, 11

119. Friday, December 16, 11

120. =
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121. subject matches
credential
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122. Friday, December 16, 11

123. Friday, December 16, 11

124. valid credential
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125. Friday, December 16, 11

126. Friday, December 16, 11

127. authorized
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128. authorized
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129. reduced friction
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130. identity transactions
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131. photo ID
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132. asymmetrical
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133. trust
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134. no relationship
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135. Friday, December 16, 11

136. Friday, December 16, 11

137. extreme scalability
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138. Friday, December 16, 11

139. not participant
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140. identity transaction
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141. privacy
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142. Friday, December 16, 11

143. reusable
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144. by any recipient
who trusts the issuer
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145. to summarize
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146. what I say about me
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147. what others say about me
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148. modern identity
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149. separation
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150. acquisition
&
presentation
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151. identification
&
authorization
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152. scale
&
privacy
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153. I control
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154. (most of the time)
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155. what is digital identity?
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156. site registration
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157. Friday, December 16, 11

158. Friday, December 16, 11

159. Friday, December 16, 11

160. Friday, December 16, 11

161. hassle
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162. digital identity?
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163. unverified
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164. (like verbal)
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165. (like verbal)
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166. Friday, December 16, 11

167. fewer trust cues
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168. Friday, December 16, 11

169. username/password
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170. authentication
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171. proves
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172. you are
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173. a
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174. directory entry
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175. Identity 1.0
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176. opaque trust decision
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177. single authority
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178. no credential choice
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179. not portable
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180. silo
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181. mimic the real world
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182. digital driver's license?
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183. how do I prove
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184. Friday, December 16, 11

185. Friday, December 16, 11

186. Friday, December 16, 11

187. Over 18
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188. Friday, December 16, 11

189. how do I prove who
I am online?
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190. not possible
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191. not something you give to
the site
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192. what the site
knows about you
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193. reputation
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194. build over time
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195. what other people say
about you
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196. Friday, December 16, 11

197. your reputation
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198. their reputation
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199. closed
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200. walled garden
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201. identity silos
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202. site centric
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203. user centric
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204. attempts
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205. Friday, December 16, 11

206. expensive
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207. no LAMP
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208. proprietary
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209. Microsoft
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210. SSO
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211. Friday, December 16, 11

212. identity = URL?
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213. Friday, December 16, 11

214. Friday, December 16, 11

215. Friday, December 16, 11

216. Friday, December 16, 11

217. rejected
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218. Friday, December 16, 11

219. Friday, December 16, 11

220. Friday, December 16, 11

221. Friday, December 16, 11

222. OAuth
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223. Brad Fitzpatrick
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224. no password
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225. limited data access
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226. closed
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227. silo
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228. Friday, December 16, 11

229. Identity 1.5
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230. Friday, December 16, 11

231. Friday, December 16, 11

232. Max Niederhofer
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233. Friday, December 16, 11

234. authorized
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235. so why is FB Connect
working?
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236. SSO
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237. distribution
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238. traffic
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239. $$$
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240. friends + security
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241. what others say about me
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242. silo
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243. closed
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244. walled garden
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245. privacy
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246. creepy
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247. terrifying
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248. Identity 2.0
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249. Friday, December 16, 11

250. simple
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251. user controls
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252. scales
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253. flexible
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254. who will drive this?
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255. users?
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256. usernames/passwords
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257. motivated
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258. won't pay
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259. FB is working
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260. unlikely
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261. competition
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262. Friday, December 16, 11

263. Friday, December 16, 11

264. standards
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265. identity ecosystem
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266. mess
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267. browsers
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268. ideal
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269. Friday, December 16, 11

270. Friday, December 16, 11

271. Friday, December 16, 11

272. opportunities
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273. chicken/egg
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274. need users
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275. need sites
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276. hard
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277. capital intense
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278. user-centric
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279. from any site
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280. to any site
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281. secure data
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282. structured data
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283. Friday, December 16, 11

284. Friday, December 16, 11

285. Friday, December 16, 11

286. Friday, December 16, 11

287. data marketplace
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288. monetization
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289. solve a user problem
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290. OAuth
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291. Identity 2.0
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292. Q&A
credit: Dick Hardt (original presentation),
Lawrence Lessig (presentation style)
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