Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
The State of Encryption
Search
Cristiano Betta
June 08, 2017
Technology
0
410
The State of Encryption
My talk from DevTalks Bucharest 2017
Cristiano Betta
June 08, 2017
Tweet
Share
More Decks by Cristiano Betta
See All by Cristiano Betta
Docs as Engineering - DevRelCon London 2019
cbetta
0
180
DevRelCon London 2019 - Developer Experience Workshop
cbetta
0
160
DevRelCon London 2019 - Developer Experience Workshop
cbetta
0
430
The 7 Deadly Sins of Developer Experience (DevRelCon Tokyo)
cbetta
0
4.2k
Developer Experience Workshop
cbetta
1
610
The 7 Deadly Sins of Developer Onboarding
cbetta
0
200
A brick by brick guide to developer experience
cbetta
2
670
Hackathons Workshop
cbetta
0
330
This strange planet earth
cbetta
0
410
Other Decks in Technology
See All in Technology
ブロックテーマでサイトをリニューアルした話 / 2026-01-31 Kansai WordPress Meetup
torounit
0
470
OWASP Top 10:2025 リリースと 少しの日本語化にまつわる裏話
okdt
PRO
3
760
StrandsとNeptuneを使ってナレッジグラフを構築する
yakumo
1
120
Cosmos World Foundation Model Platform for Physical AI
takmin
0
890
AzureでのIaC - Bicep? Terraform? それ早く言ってよ会議
torumakabe
1
550
AIと新時代を切り拓く。これからのSREとメルカリIBISの挑戦
0gm
0
930
顧客との商談議事録をみんなで読んで顧客解像度を上げよう
shibayu36
0
240
All About Sansan – for New Global Engineers
sansan33
PRO
1
1.3k
仕様書駆動AI開発の実践: Issue→Skill→PRテンプレで 再現性を作る
knishioka
2
660
Context Engineeringの取り組み
nutslove
0
340
Ruby版 JSXのRuxが気になる
sansantech
PRO
0
150
10Xにおける品質保証活動の全体像と改善 #no_more_wait_for_test
nihonbuson
PRO
2
280
Featured
See All Featured
Refactoring Trust on Your Teams (GOTO; Chicago 2020)
rmw
35
3.4k
The World Runs on Bad Software
bkeepers
PRO
72
12k
Site-Speed That Sticks
csswizardry
13
1.1k
Building a A Zero-Code AI SEO Workflow
portentint
PRO
0
310
Writing Fast Ruby
sferik
630
62k
RailsConf & Balkan Ruby 2019: The Past, Present, and Future of Rails at GitHub
eileencodes
141
34k
Getting science done with accelerated Python computing platforms
jacobtomlinson
2
110
ピンチをチャンスに:未来をつくるプロダクトロードマップ #pmconf2020
aki_iinuma
128
55k
Impact Scores and Hybrid Strategies: The future of link building
tamaranovitovic
0
200
How to Get Subject Matter Experts Bought In and Actively Contributing to SEO & PR Initiatives.
livdayseo
0
66
The Web Performance Landscape in 2024 [PerfNow 2024]
tammyeverts
12
1k
Visualization
eitanlees
150
17k
Transcript
Qeb Pqxqb lc Bkzovmqflk Rfc Qryrc md Clapwnrgml Sgd Rszsd
ne Dmbqxoshnm The State of Encryption Uif Tubuf pg Fodszqujpo Vjg Uvcvg qh Gpetarvkqp Wkh Vwdwh ri Hqfubswlrq ! Cristiano Betta | @cbetta
Qeb Pqxqb lc Bkzovmqflk Rfc Qryrc md Clapwnrgml Sgd Rszsd
ne Dmbqxoshnm The State of Encryption Uif Tubuf pg Fodszqujpo Vjg Uvcvg qh Gpetarvkqp Wkh Vwdwh ri Hqfubswlrq
1987
None
The living Daylights "
The living Daylights "
None
None
The Real Spies #
None
None
None
None
Hide
Hide%
Microdot
None
1mm 1mm 1mm
MA-4450 '
MA-4450 '
Rotation Sheets (
Jackpot )))
Cristiano Betta @cbetta
♥ security + virgilsecurity.com + betta.io
, security expert + virgilsecurity.com + betta.io
Encryption 101 %
Entropy -
None
11111111111111111111 11111111111111111111 11111111111111111111 11111111111111111111 11111111111111111111 H = 0
11111111111111111111 11111111111111111111 11111111110000000000 00000000000000000000 00000000000000000000 H = 1
RAR(50x1+50x0) H ~= 5
TrueCrypt(RAR) H ~= 7.8
RC4 .
! ! /1 /1
1984 .
Certified Security 0
Diffie- Hellman 1
Color Exchange 2
A B
A B Common Common
A B Common Common Secret Secret
A B Public Mix Public Mix
Public Mix A B Public Mix
Public Mix A B Public Mix
Public Mix A B Public Mix Secret Secret
A B Common Secret Common Secret
1-way functions 3
X*Y = 143 X > 1 Y > 1 3
3 X*Y = 143 X = 11 Y = 13
X*Y = 10,967,535,067 X = 104723 Y = 104729
Public Key Encryption 1
Asymmetric Encryption 1
! / / Pub1 Priv1 ! / / Pub2 Priv2
1 2
! ! 4 1 2
! ! 4+/pub2 1 2
! ! 4 1 2 /
! ! 4 1 2 /
! ! 4+/priv2 1 2 /
! ! 1 2 4
Signatures 5
! ! 4+/priv1 1 2
! ! 1 2 4 0
! ! 1 2 4 0
! ! 4+/pub1 1 2 0
! ! 1 2 ◦
Public Key Encryption 1
PGP SSH SSL TLS BitCoin …. 1
/ Pub1? / Pub2?
Digital Certificates International 0
Verisign
Certificate Authorities 0
0 0 / Pub1? / Pub2? 0 Root
LetsEncrypt 7
letsencrypt.org
Crypto Wars 8
Ammunition
Netscape 9
2000 MTOPS !
None
None
2017 :
Crypto Wars Round 2 ;
Snowden Manning Assange <
“…the N.S.A. has been deliberately weakening the international encryption standards
adopted by developers. One goal … was to ‘influence policies, standards and specifications for commercial public key technologies’…” 76 - New York Times, 6 Sept 2013
Increased Law Enforcement =
http://www.dailymail.co.uk/wires/reuters/article-4350416/UK-minister-says- encryption-messaging-services-unacceptable.html
Chat Apps :
https://www.eff.org/node/82654
Virgil Security
Create private key & public Virgil Card
Push Virgil Card to server
Publish card to Virgil
Encrypt data
Decrypt data
Demo %
Virgil Security >
demo-ip-messaging.virgilsecurity.com
virgilsecurity.com %
Encryption 201 ?
2047 ?
Total Security @
Total Privacy %
Human Error A
Slingshot Security B
Quantum Entanglement -
Large Integer Factorization! ÷
Post-QC Encryption 7
Quantum Key Exchange -
Quantum Key Exchange -
2047 ?
2117 ?
Thank you! @cbetta betta.io Cristiano Betta @virgilsecurity virgilsecurity.com Virgil Security