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
380
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
160
DevRelCon London 2019 - Developer Experience Workshop
cbetta
0
140
DevRelCon London 2019 - Developer Experience Workshop
cbetta
0
340
The 7 Deadly Sins of Developer Experience (DevRelCon Tokyo)
cbetta
0
4.1k
Developer Experience Workshop
cbetta
1
600
The 7 Deadly Sins of Developer Onboarding
cbetta
0
190
A brick by brick guide to developer experience
cbetta
2
650
Hackathons Workshop
cbetta
0
310
This strange planet earth
cbetta
0
390
Other Decks in Technology
See All in Technology
知覚とデザイン
rinchoku
1
570
ハノーファーメッセ2025で見た生成AI活用ユースケース.pdf
hamadakoji
1
460
serverless team topology
_kensh
3
230
Linux カーネルが支えるコンテナの仕組み / LF Japan Community Days 2025 Osaka
tenforward
1
120
AI駆動で進める依存ライブラリ更新 ─ Vue プロジェクトの品質向上と開発スピード改善の実践録
sayn0
1
290
AWS UG Grantでグローバル20名に選出されてre:Inventに行く話と、マルチクラウドセキュリティの教科書を執筆した話 / The Story of Being Selected for the AWS UG Grant to Attending re:Invent, and Writing a Multi-Cloud Security Textbook
yuj1osm
1
130
アウトプットから始めるOSSコントリビューション 〜eslint-plugin-vueの場合〜 #vuefes
bengo4com
3
1.8k
OpenTelemetry が拡げる Gemini CLI の可観測性
phaya72
2
2.2k
だいたい分かった気になる 『SREの知識地図』 / introduction-to-sre-knowledge-map-book
katsuhisa91
PRO
3
1.4k
AI時代におけるデータの重要性 ~データマネジメントの第一歩~
ryoichi_ota
0
710
AI時代の開発を加速する組織づくり - ブログでは書けなかったリアル
hiro8ma
1
310
MCP ✖️ Apps SDKを触ってみた
hisuzuya
0
360
Featured
See All Featured
jQuery: Nuts, Bolts and Bling
dougneiner
65
7.9k
Product Roadmaps are Hard
iamctodd
PRO
55
11k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
48
9.7k
Build your cross-platform service in a week with App Engine
jlugia
233
18k
Art, The Web, and Tiny UX
lynnandtonic
303
21k
Designing Experiences People Love
moore
142
24k
Build The Right Thing And Hit Your Dates
maggiecrowley
38
2.9k
Site-Speed That Sticks
csswizardry
13
920
VelocityConf: Rendering Performance Case Studies
addyosmani
333
24k
A Tale of Four Properties
chriscoyier
161
23k
Statistics for Hackers
jakevdp
799
220k
BBQ
matthewcrist
89
9.9k
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