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Digital signatures TEDx

Estonia vs the World
by

Anton Keks

on 10 April 2016

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Transcript of Digital signatures TEDx

vs
Anton Keks, @antonkeks
Digital
Thanks!
@antonkeks
signatures
Estonia vs the World
Encryption
transforming data with a key
abc
def
f(key)
symmetric
(ciphering)
PKI
assymetric
key pair
abc
def
f(key1)
f(key2)
private key
public key
Digital signature
data
hash
signature
f
encrypt
(private key)
Signing
Verifying
signature
hash
data
decrypt
(public key)
hash
f
hash
kept secret
shared with the world
(one way f)
= proof that you own the private key
x509
certificates
public key
owner's info
expiration date
shared as
is the same?
stored on
ID card
Mobile ID
USB token
file
smart card
SIM card
CA
Certificate Authority
issues certificates
check public
key validity
trusted by all
The Government
The best CA is
certifies every citizen
provides keys on physical tokens
Estonia
As internal ID
(digitally signing them)
(insecure)
Identity
Present/Near future
Enables remote citizens (e-residency)

More distant future
More secure less anonymous internet (fewer spammers)
Web of trust style?
No need for overpriced notar services?

We are already working on this now for banks and other companies.

Less bureaucracy
- quicker agreements and decisions
More businesses can be automated
Ecological - no storing of paper
Legally binding signatures
vs
Safer distant communication
E-voting attracts more people
IT needs more people, i.e. you!
Identity protection
International collaboration: crimes more difficult
More convenience, integration (bio chips?)
Paper signatures are
outdated &
insecure
Ancient technology
easily forgeable
often are reproduced as digital images anyway
Don't prove identity
Don't prove that signed content wasn't modified
Digital signatures
for Modern World
e-voting
Convenient
More secure
More votes
Cheaper
Physical location becomes unimportant
Anonymous Internet problem
HTTPS server certificates
Web of Trust
Huge potential
Better, more efficient World
We need help to build it!
1st?
Full transcript