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%\usepackage{opensans}          % Can't make this work so far. Shame. Would be lovely.
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% Document Info
\author{Jianmin Feng (taotao)}
\pdfinfo{
  /Title (cyber-security-basic.pdf)
  /Creator (Cheatography)
  /Author (Jianmin Feng (taotao))
  /Subject (Cyber Security basic Cheat Sheet)
}

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\noindent
\begin{multicols}{3}
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    \vspace{-7pt}
    {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent
        \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}}
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\begin{tabulary}{11cm}{L}
    \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Cyber Security basic Cheat Sheet}}}} \\
    \normalsize{by \textcolor{DarkBackground}{Jianmin Feng (taotao)} via \textcolor{DarkBackground}{\uline{cheatography.com/79308/cs/19793/}}}
\end{tabulary}
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\noindent
\begin{multicols}{3}
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  \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}}  \\
  \vspace{-2pt}Jianmin Feng (taotao) \\
  \uline{cheatography.com/taotao} \\
  \end{tabulary}
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\begin{tabulary}{5.8cm}{L}
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  \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}}  \\
   \vspace{-2pt}Not Yet Published.\\
   Updated 8th June, 2019.\\
   Page {\thepage} of \pageref{LastPage}.
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  \vspace{-5pt}
  %\includegraphics[width=48px,height=48px]{dave.jpeg}
  Measure your website readability!\\
  www.readability-score.com
\end{tabulary}
\end{multicols}}




\begin{document}
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\begin{multicols*}{2}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Udemy Nathan cyber security basic}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{\seqsplit{https://www.stationx.net/canarytokens/}% Row Count 1 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{x{2.08 cm} x{5.92 cm} }
\SetRowColor{DarkBackground}
\mymulticolumn{2}{x{8.4cm}}{\bf\textcolor{white}{Basic theory - asset and vulnerability}}  \tn
% Row 0
\SetRowColor{LightBackground}
Protect valued & confidential, not afford to lose, irrepaceable, cost most damages, impact reputation \tn 
% Row Count 3 (+ 3)
% Row 1
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{privacy(confidential), anonymity (identity hiding),Preudonymity (false identity, such as bitcoin)} \tn 
% Row Count 5 (+ 2)
% Row 2
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{security and vulnerabilities (ssh, https, 2FA, vpn etc)} \tn 
% Row Count 7 (+ 2)
% Row 3
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{threats (virus malware, hacking, spyware, rootkits, adware, phishing,vishing,exploit kits)} \tn 
% Row Count 9 (+ 2)
% Row 4
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{adversaries ( hacker, cyber criminals, spies, creackers, law enforcement goverments} \tn 
% Row Count 11 (+ 2)
% Row 5
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{assets and protection, granularity, risk assessments} \tn 
% Row Count 13 (+ 2)
% Row 6
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{risk =vulnerability X threads X consequences, trade off risk and beneficial} \tn 
% Row Count 15 (+ 2)
% Row 7
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{select - implement - assess -monitor} \tn 
% Row Count 16 (+ 1)
% Row 8
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{security vs privacy vs anonymity: conflict} \tn 
% Row Count 17 (+ 1)
% Row 9
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{cinfidentiality(keep your self), integrity ( accuracy unmodified) availability ( functional): CIA Tiad} \tn 
% Row Count 20 (+ 3)
% Row 10
\SetRowColor{LightBackground}
\mymulticolumn{2}{x{8.4cm}}{Defense in depth: prevention- detection - recovery} \tn 
% Row Count 21 (+ 1)
% Row 11
\SetRowColor{white}
\mymulticolumn{2}{x{8.4cm}}{Zero trust model, the less trust, including yourself, the safer. trust nothing trust nobody. never put online. nothing is safe online} \tn 
% Row Count 24 (+ 3)
\hhline{>{\arrayrulecolor{DarkBackground}}--}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{basic theory - current threat and vulnerability}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Value of hack: not a person, but a Bot -automate AI software to continuous attacking you.hijacking \newline % Row Count 2 (+ 2)
Top 3 things need to stay safe online?  \newline % Row Count 3 (+ 1)
security bugs:always exist, as human writing code.OS, firmware, app, web browser ( js, java), known bug + patches, unknown bugs + zero days , no patch \newline % Row Count 7 (+ 4)
\seqsplit{https://www.cvedetails.com/} \newline % Row Count 8 (+ 1)
https://exploit.db.com: public available, patch available, can be used to exploit unpatched system \newline % Row Count 10 (+ 2)
hacker-white (ethnic legal hacking) and black hacker (cyber criminals) \newline % Row Count 12 (+ 2)
cracker- crack the key of a software \newline % Row Count 13 (+ 1)
cyber criminal (black hacker, \newline % Row Count 14 (+ 1)
malware:macro virus,stealth virus, polymorphic virus,self-garbling, bots and zombies, worms OS rootkit(bed in kernel), firmware Rootkit,key logger, trojan, Romote access tool (RAT) \newline % Row Count 18 (+ 4)
Ransomware: designed to deny access to a computer system or data until a ransom is paid, usu by phishing. \newline % Row Count 21 (+ 3)
spyware(spy), adware(formal spyware, highjack web searching), browser hijacking, scareware( fake info to scare you to pay), pup ( potentially unwanted programs) \newline % Row Count 25 (+ 4)
phishing(trick you to click, easy and high successful rate, 30\% people still be fooled, email is common way to phishing): google.xxxxx.com, check HLD high level domain, goog1e, g00gle, hidden URLs  \newline % Row Count 29 (+ 4)
\textless{}a href = ....\textgreater{}fake link \textless{}/a\textgreater{} \newline % Row Count 30 (+ 1)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{basic theory - current threat and vulnerability (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{vishing: phone/voice \newline % Row Count 1 (+ 1)
smsmhing: sms \newline % Row Count 2 (+ 1)
spamming: unsolicited message, email, message etc. minimal cost, high earning. \newline % Row Count 4 (+ 2)
doxing:ren-rou, googling/anything to get info for some body \newline % Row Count 6 (+ 2)
social engineering: - scams, cons, tricks, fraud \newline % Row Count 7 (+ 1)
cpu hijackers: crypto mining malware and cryptojackers \newline % Row Count 9 (+ 2)
darknet (only accessible with special tools) vs clearnet(google, amazon) \newline % Row Count 11 (+ 2)
dark market: access through darknet \newline % Row Count 12 (+ 1)
exploit kits \newline % Row Count 13 (+ 1)
government, spies, and secrete stuff: 5 eyes \newline % Row Count 14 (+ 1)
regulating encryption, mandating insecurity and legalizing spying \newline % Row Count 16 (+ 2)
trust and backdoors: formal methods, closed, open source, binaries, hash,digital signature \newline % Row Count 18 (+ 2)
censorship% Row Count 19 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{encryption}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{plan text -\textgreater{}cipher text -\textgreater{}plan text: encryption (ciper) decryption(decipher) \newline % Row Count 2 (+ 2)
algorithm: public/lock \newline % Row Count 3 (+ 1)
key: secrete/password \newline % Row Count 4 (+ 1)
winzip: encryption method 256, 128, legacy(zip 2.0)  key length and key space \newline % Row Count 6 (+ 2)
AES(Advance encryption Standard): symetric algorithm (uses 1 Key private) password becomes the key \newline % Row Count 8 (+ 2)
DES(data encryption standard,3 DES (triple-DES), blowfish, RC4-6 \newline % Row Count 10 (+ 2)
brutle force,dictionary force, hybride the two \newline % Row Count 11 (+ 1)
Asymetric encryption: 2 keys(public and private),  \newline % Row Count 13 (+ 2)
RSA(Rivest shamir adleman), ECC(Elliptic curve cryptosystem):digtal signature; D (diffie hellman), EL Gamal \newline % Row Count 16 (+ 3)
Key exchange and agreement:encrypt with one, decrypt with another. \newline % Row Count 18 (+ 2)
Confidentiality(private key): decrypt with receiver's private key \newline % Row Count 20 (+ 2)
authentication(private key): encrypt with sender's private key-signature \newline % Row Count 22 (+ 2)
NOnrepudiation \newline % Row Count 23 (+ 1)
integrity: \newline % Row Count 24 (+ 1)
Asymmetric better key distr, scalability,authentication and non repudiation(not deniable), slow,mathematically intensive \newline % Row Count 27 (+ 3)
Symetric: fast, strong \newline % Row Count 28 (+ 1)
RSA:AES( 1024-80, 2048-112, 3072-128, 15360-256) \newline % Row Count 29 (+ 1)
hybrid cryptosystem: RSA(key \seqsplit{distribution/encapsulation)} and AES( data encryption encapsulation) \newline % Row Count 31 (+ 2)
} \tn 
\end{tabularx}
\par\addvspace{1.3em}

\vfill
\columnbreak
\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{encryption (cont)}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Https:handshaking(client hello/server hello)-{}-\textgreater{}exchange certificate ( authenication,authorized server issue their private key encrypted certificate, name, domain, public key of server usu, client is not required in general) -{}-\textgreater{}exchange key( server public key, client symmetric key)% Row Count 6 (+ 6)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\seqsplit{https://robertheaton.com/2014/03/27/how-does-https-actually-work/} \newline https://nickfishman.com/post/50557873036/reverse-engineering-native-apps-by-intercepting-network \newline https://www.hostinger.com/tutorials/ssh-tutorial-how-does-ssh-work}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{SSL TLS}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Secure Sockets Layer ( SSL) -\textgreater{} Transport layer security TLS(1.0-1.3) \newline % Row Count 2 (+ 2)
Confifential(symmetric key AES), authenticated(public key, digital signature) and integrity(integrity check, hash value ectc) \newline % Row Count 5 (+ 3)
cipher suites setup on server \newline % Row Count 6 (+ 1)
Session Encryption Negotiation \newline % Row Count 7 (+ 1)
1 shared larger prime number \newline % Row Count 8 (+ 1)
2 AES algorithm \newline % Row Count 9 (+ 1)
3 generated primes as private key \newline % Row Count 10 (+ 1)
4 private key +shared prime + AES \textgreater{} public key \textgreater{} distribute to another party \newline % Row Count 12 (+ 2)
5 private key +shared prime + public key of the other \textgreater{} shared symmetric key,generated indepently but the same \newline % Row Count 15 (+ 3)
6.the shared key is used to encrypt the connection \newline % Row Count 17 (+ 2)
Authentication: \newline % Row Count 18 (+ 1)
client password and user nameor SSH Key Pairs.% Row Count 19 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\seqsplit{https://www.hostinger.com/tutorials/ssh-tutorial-how-does-ssh-work} \newline https://www.hostinger.com/tutorials/ssh/how-to-set-up-ssh-keys}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Https}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Https:handshaking(client hello/server hello) \newline % Row Count 1 (+ 1)
-{}-\textgreater{}exchange certificate ( authenication,authorized server issue their private key encrypted certificate, name, domain, public key of server usu, client is not required in general)  \newline % Row Count 5 (+ 4)
-{}-\textgreater{}exchange key( client sends symmetric key) \newline % Row Count 6 (+ 1)
ssh stripping: client\textgreater{}http \textgreater{} middle man \textgreater{} https\textgreater{}server \newline % Row Count 8 (+ 2)
usingkali, or hardware \newline % Row Count 9 (+ 1)
avoid: https only, tunnelling(VPN/SSH), only trusted website \newline % Row Count 11 (+ 2)
sniffdet \newline % Row Count 12 (+ 1)
arpwatch \newline % Row Count 13 (+ 1)
VLAN:virtual LAN \newline % Row Count 14 (+ 1)
ssllabs.com \newline % Row Count 15 (+ 1)
SNI server name Indication% Row Count 16 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\SetRowColor{LightBackground}
\mymulticolumn{1}{x{8.4cm}}{\seqsplit{https://robertheaton.com/2014/03/27/how-does-https-actually-work/} \newline https://nickfishman.com/post/50557873036/reverse-engineering-native-apps-by-intercepting-network \newline VLAN: virtual LAN}  \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Hash}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{Integrity: hash function, checksum \newline % Row Count 1 (+ 1)
MD5, Sha-256 \newline % Row Count 2 (+ 1)
powershell: get-filehash -Algorithm Sha512 c:\textbackslash{}test.txt. \newline % Row Count 4 (+ 2)
download checksum comparison: verify download \newline % Row Count 5 (+ 1)
hash password to save d to use as verification, original password not saved. \newline % Row Count 7 (+ 2)
HMAC: haseh based msg authentication code% Row Count 8 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{digital signature}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{hash algorithm - hash value -{}-\textgreater{} sender private key - signed msg \newline % Row Count 2 (+ 2)
authentication, nonrepudation, integrity \newline % Row Count 3 (+ 1)
signed msg -{}-sender's publick key -hash value \newline % Row Count 4 (+ 1)
windows device guide% Row Count 5 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{digital certifictes and https}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{digital signature from well know trusted company( third parties) \newline % Row Count 2 (+ 2)
local library of digital cert library auto loaded (roots) \newline % Row Count 4 (+ 2)
local digital cert manually loaded(self signed, trusted parties) \newline % Row Count 6 (+ 2)
compromised/fake digital cert: really risk \newline % Row Count 7 (+ 1)
CA Ecosystem \newline % Row Count 8 (+ 1)
CA example mistaks \newline % Row Count 9 (+ 1)
SSL sniff \newline % Row Count 10 (+ 1)
CA patrol \newline % Row Count 11 (+ 1)
cert fingerprints \newline % Row Count 12 (+ 1)
pinning% Row Count 13 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{E2EE, steganography}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{E2EE end to end encryption:PGP ZRTP OTR SSL/TLS \newline % Row Count 1 (+ 1)
use E2EE always possible \newline % Row Count 2 (+ 1)
steganography: the practice of concealing a file, message, image, or video within another file, message, image, or video. \newline % Row Count 5 (+ 3)
openpuff% Row Count 6 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}

\begin{tabularx}{8.4cm}{X}
\SetRowColor{DarkBackground}
\mymulticolumn{1}{x{8.4cm}}{\bf\textcolor{white}{Setup testing environments}}  \tn
\SetRowColor{white}
\mymulticolumn{1}{x{8.4cm}}{type2 Hosted: hard ware -\textgreater{}OS -\textgreater{}hypervisor-\textgreater{}OS \newline % Row Count 1 (+ 1)
type 1 native: hardware \textgreater{}hypervisor-\textgreater{}OS \newline % Row Count 2 (+ 1)
vmware or virtualbox \newline % Row Count 3 (+ 1)
testing environment |security options \newline % Row Count 4 (+ 1)
install virtual OS: physical DVD, virtual DVD (ISO), prebuilt virtual disk/image (.ova form virtual box) \newline % Row Count 7 (+ 3)
Kali: debian, 600 penetration testing tools. \newline % Row Count 8 (+ 1)
osboxes.org for prebuilt images% Row Count 9 (+ 1)
} \tn 
\hhline{>{\arrayrulecolor{DarkBackground}}-}
\end{tabularx}
\par\addvspace{1.3em}


% That's all folks
\end{multicols*}

\end{document}