What Is a Digital Signature? How Could a Digital Signature

question 11

Essay

What is a digital signature? How could a digital signature ensure data integrity when conducting e-business?
B.
6) Receiver B receives the package and decrypts it using Receiver B's private key. Receiver B now has the document and Sender A's digital signature.
7) Receiver B decrypts Sender A's digital signature using Sender A's public key to get the sent-over MD. Receiver B also authenticates that Sender A is the document creator.
8) Receiver B makes a copy of the received document and uses SHA-256 to hash the copy and get a calculated MD.
9) If the sent-over MD is the same as the calculated MD, Receiver B ensures data integrity.

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Definitions:

Forward Contract

A bespoke arrangement between two parties for acquiring or disposing of an asset at a designated price on an upcoming date.

Hedge

An investment made to reduce the risk of adverse price movements in an asset.

Speculative Forward Contract

A financial derivative used to speculate on the future price of an asset, involving an agreement to buy or sell the asset at a future date for a price determined today.

Fair Value Hedge

A risk management technique that uses financial instruments to mitigate the risk associated with changes in the fair value of an asset or liability.