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
370
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
140
DevRelCon London 2019 - Developer Experience Workshop
cbetta
0
130
DevRelCon London 2019 - Developer Experience Workshop
cbetta
0
330
The 7 Deadly Sins of Developer Experience (DevRelCon Tokyo)
cbetta
0
4.1k
Developer Experience Workshop
cbetta
1
590
The 7 Deadly Sins of Developer Onboarding
cbetta
0
190
A brick by brick guide to developer experience
cbetta
2
640
Hackathons Workshop
cbetta
0
300
This strange planet earth
cbetta
0
370
Other Decks in Technology
See All in Technology
Кто отправит outbox? Валентин Удальцов, автор канала Пых
lamodatech
0
230
Welcome to the LLM Club
koic
0
120
比起獨自升級 我更喜歡 DevOps 文化 <3
line_developers_tw
PRO
0
1.1k
成立するElixirの再束縛(再代入)可という選択
kubell_hr
0
520
新卒3年目の後悔〜機械学習モデルジョブの運用を頑張った話〜
kameitomohiro
0
360
Workflows から Agents へ ~ 生成 AI アプリの成長過程とアプローチ~
belongadmin
3
170
LinkX_GitHubを基点にした_AI時代のプロジェクトマネジメント.pdf
iotcomjpadmin
0
150
Observability infrastructure behind the trillion-messages scale Kafka platform
lycorptech_jp
PRO
0
120
~宇宙最速~2025年AWS Summit レポート
satodesu
1
630
ローカルLLMでファインチューニング
knishioka
0
110
ハノーバーメッセ2025座談会.pdf
iotcomjpadmin
0
140
_第3回__AIxIoTビジネス共創ラボ紹介資料_20250617.pdf
iotcomjpadmin
0
140
Featured
See All Featured
Being A Developer After 40
akosma
90
590k
Reflections from 52 weeks, 52 projects
jeffersonlam
351
20k
Adopting Sorbet at Scale
ufuk
77
9.4k
Docker and Python
trallard
44
3.4k
Speed Design
sergeychernyshev
31
1k
Making the Leap to Tech Lead
cromwellryan
134
9.3k
Gamification - CAS2011
davidbonilla
81
5.3k
Principles of Awesome APIs and How to Build Them.
keavy
126
17k
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
48
5.4k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
31
1.2k
Making Projects Easy
brettharned
116
6.2k
A Tale of Four Properties
chriscoyier
159
23k
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