1. What is a hash value, and why do you think it is important?
2. Explain how a hash value can be made secure to provide message authentication.
3. Provide an example as it applies to your current job or life.
4. What are the benefits of implementing hash values?
The following grading rubric will be used for this assignment.
USEFUL NOTES FOR:
1. What is a hash value, and why do you think it is important?
Introduction
A hash value is a string of characters which has been created from another string of characters. It’s also known as a digest, and it can be used to confirm the authenticity of any data on blockchains. A hash value is important for two reasons:
What is a hash value, and why do you think it is important?
A hash value is a unique string of letters and numbers that represents a file or document. It can be used to search blockchains faster because each file has its own unique hash. Hashes are also important in cryptography, where they ensure the integrity of data by creating an unforgiving chain reaction when compared to other systems (e.g., checksums).
In blockchain technology, hashes are used to verify transactions between parties involved in an exchange; however, they are not created from the actual transaction data itself but rather from some other piece of information about the sender’s wallet address (such as its public key) or recipient’s address (such as their private key).
a hash value is important because it can help us search blockchains faster.
A hash value is a unique fingerprint for data, and it’s used to check if the data has been tampered with or copied.
The way that a hash function works is that it takes an input, such as a piece of text or an image file, and returns a small amount of random numbers that are unique and have no meaning on their own. This makes it easy to search through large amounts of information by using these numbers as indexes in memory. For example, if you wanted to find all tweets from someone called @_michael_sara_ from November 1st at 10:00pm until December 31st at 11:59pm (inclusive), then all you would need was their Twitter handle followed by “_michael_sara_”. The final step would be using some kind of algorithm like SHA256(input) * 256 + 1 which yields 65536 possible solutions!
Conclusion
As you can see, there’s a lot more to hash values than just looking up information in a dictionary. In fact, it’s one of the most important features of blockchains because it allows us to search through thousands of transactions and look for patterns without having to run them all through a slow filter like Google or Bing would do.