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7
Transcript
*****
More than
What?
one of these.
Hardware
Delivery
Software
2FA Config-o-matic
- Something you know.
- Something you have.
Virtual
Physical
2FA
- Something you are.
157365
Strong Secret
No Secret
Public Delivery
No Delivery
When?
Second Factor
Completely Own
3rd Party
How
does it look
- During login.
- Before anaction.
- Part of signup.
Authentication
Why not
Options
to a
User?
Tim Lytle
Why?
Picked by users.
mean
Do it all?
Online here.
@tjlytle
Passwords are hard.
Trade-offs.
Works here.
Static.
Used to work here.
Can be forgotten.
[Let's take a look at some code.]
Can Services make this easier?
github.com/nexmo/ToDo-Web
Rate this talk
https://joind.in/talk/7dcb0
Delivery
Challenge
Algorithm
Service compares
Sent using a
Service sends a
to range of values.
Requires active
separate channel.
signed challenge.
internet
User provides
connection.
Service generates
device's code.
Result of seed
single use code.
+ time. (TOTP)
Device identifies
OTP
request.
OTP
Or seed +
Challenge
157365
counter. (HOTP)
Response
Service verifies
Sibling
Returned over
Seed
codes match.
mobile app,
the authenticating
(and counter
approving
Requires
channel.
or time)
Returns
User ID
web login.
synchronization.
signed response.
Computationally
(number,
expensive.
email, etc)
Secret
One secret
per application
(or keypair)
or global.
But
does
Work?
how
it
Yes,of course.
Just
actions.
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