Implement the basic Merkle tree. (Use any programming language) Test Cases
Implement the basic Merkle tree. (Use any programming language) Test Cases
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
Related questions
Question
![leaves
v-Hash( s)
s, secret
Lab Task (1/3)
* Implement the basic Merkle tree. (Use any
programming language)
* Test Cases
• The reason we use Merkle trees to store
block data (ie. transactions) is that
verification is very efficient. This
verification is called a Merkle proof.
To
T
• Suppose we want to prove that
transaction D, was indeed in the block,
that formed the header shown in fig
T.
Ts
T6
Do D, D D D, DS DE D7
Lab Task (2/3)
* In addition to the transaction hash D;, we also need D, T(D. D,), and
T;(T(D,.D;).T(D.D,)) to form the proof. The verification itself performs the following
sieps on the proof:
• Hash D, and D, to produce T,(D,. D).
• Hash S(A,B) and S(C.D) to produce
S(S(A,B).S(C.D)
• Hash T,(T,(D,D,), T(D,, D,)) and
T;T(D,D,), T,(D, D,)) to produce the
T
root,
• Check that the root is the same as what
has been stored previously.
T4
TS
T6
Do D, D D
D. D, De D7
Lab Task (3/3)
Implement the Merkle proof functionality and to verify it.
Create a report to describe what you have done and your observations with
sereenshots.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F57a62b75-bfee-45d7-917f-1034acb09bf1%2F80decef4-85c1-4861-b51b-80da50881c67%2F7ue6wi_processed.jpeg&w=3840&q=75)
Transcribed Image Text:leaves
v-Hash( s)
s, secret
Lab Task (1/3)
* Implement the basic Merkle tree. (Use any
programming language)
* Test Cases
• The reason we use Merkle trees to store
block data (ie. transactions) is that
verification is very efficient. This
verification is called a Merkle proof.
To
T
• Suppose we want to prove that
transaction D, was indeed in the block,
that formed the header shown in fig
T.
Ts
T6
Do D, D D D, DS DE D7
Lab Task (2/3)
* In addition to the transaction hash D;, we also need D, T(D. D,), and
T;(T(D,.D;).T(D.D,)) to form the proof. The verification itself performs the following
sieps on the proof:
• Hash D, and D, to produce T,(D,. D).
• Hash S(A,B) and S(C.D) to produce
S(S(A,B).S(C.D)
• Hash T,(T,(D,D,), T(D,, D,)) and
T;T(D,D,), T,(D, D,)) to produce the
T
root,
• Check that the root is the same as what
has been stored previously.
T4
TS
T6
Do D, D D
D. D, De D7
Lab Task (3/3)
Implement the Merkle proof functionality and to verify it.
Create a report to describe what you have done and your observations with
sereenshots.
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