Public Key Encryption Example
Communication Channel
Recipient
e n
d e
Of'em1psum dok>r sit ame t, consecletur
sevenyears ago our fathers brought fMh on this continent.a
sevenyears ago our fathers brought fortl\ Gn thi$ continent.a
I
C
¢)
ad ipiscing elit. ~~ Phasellusa ml
r
y p
new nation, conceived in Liberty , and
new nation , conceive d in Liberty, and
y p
eu orci dapibus viverra non eu dui. A1Ql uam
t
t
I I
plaintext + key
publ ic,
plaintext + private key
ciphertext
I I
Sidebar: Blockchain & Bitcoin Blockchain Introduced in 2008 as part of a proposal for Bitcoin, Blockchain is a peer-to-peer network which provides an open, distributed record of transactions between two parties. A “peer-to-peer” network is one where there is no server between the two nodes trying to communicate. Essentially, this means that each node acts as a server and a client. Supporters see blockchain as a tool to simplify all types of transactions: payments, contracts, etc. Motivation comes from Information Systems for Business and Beyond (2019) pg. 122
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