How SSH (Secure Socket Shell) Works
                     UNDERSTANDING
HOW SSH
(SECURE SOCKET SHELL)
WORKS
SWIPE LEFT
@infosectra in
2
JACK:
What are you doing?
JILL:
I am sending an
important file to
my manager.
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3
JACK:
Don’t you think it is
risky?
JILL:
How?
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4
JACK:
What if someone
intercepts and reads
your file without
your permission?
JILL:
What is the safest way
for me to send this file
to my manager?
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5
JACK:
Use SSH
protocol
? JILL:What is SSH
protocol?
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6
JACK:
SSH is a network
protocol that
allows users to access and
communicate with remote
computers over an
unsecured network.
JILL:
? How will it protectmy file?
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7
JACK:
You attach your file
in a message, secure
it with a lock (encryption key)
(now only you have the key),
and send it to your manager.
JILL:
? How will he
know my key?
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8
JACK:
Your manager doesn’t
have your key. So he
adds another lock to
the file and returns it
to you. 
JILL:
X But he didn’t
read my file
yet.
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9
JACK:
Now that your manager's lock is
locked, you use your key to open
that file and send it back to him.
Then, without anyone being able
to intercept it, he uses his key
to unlock the file and reads it.
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The SSH Protocol
The SSH protocol transmits data between client and
server using symmetric solid encryption, hashing, and
public-key cryptography.
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