Reading assignment: Hashing

Blockchain and Bitcoin 101
#4479

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256 is the hashing algorithm used in Bitcoin

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    It is almost impossible to use brute-force as it is hard to reverse the output of a function to get back the input.

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#4480
  1. SHA 256
  2. It is almost impossible to brute-force because it is very difficult to find 2 inputs that are the same. There are so many different results you can get.
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#4481
  1. Hash algorithm of Bitcoin is called Proof of Work which is based on SHA256 algorithm. It is kind of algorithm that produces a digit number as an output not bigger than 256 bits long.
  2. Its very difficult to reverse this function and find initial values based on the output. And every output is based on other previous hashes, which makes it almost impossible to hack the whole chain of blocks.
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#4482
  1. What is the hashing algorithm called used in Bitcoin?

SHA-256

  1. Why is this hashing algorithm really hard (almost impossible) to brute-force?

Because it uses intricate mathematical equations which would make a reversal of a hash to long to take place because of the secure hashing algorithm.

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#4483

  1. Secure Hash Algorithm (SHA) named SHA-256.

  2. They are one way functions and can not be reversed. One slight change in the input creates a different ouput. There are so many possible inputs to try it would take for ever to brute force to find the solution.

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#4484
  • What is the hashing algorithm called used in Bitcoin?
    Answer : SHA- 256
  • Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Answer : It s hard to reverse the output of the function to get back the input.
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#4485

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    It is by design and becomes more or less hard depending on the number of active miners. Some do worry that quantum computers may someday be a concern.

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#4486
  1. What is the hashing algorithm called used in Bitcoin?
  • Secure Hash Algorithm (SHA) named SHA-256
  1. Why is this hashing algorithm really hard (almost impossible) to brute-force?
  • Due to the statistical improbability of determining the input from output
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#4487
  1. What is the hashing algorithm called used in Bitcoin?

*Sha256

  1. Why is this hashing algorithm really hard (almost impossible) to brute-force?

*Because you cannot go from output to input a unique characteristic of sha256

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#4488
  1. What is the hashing algorithm called used in Bitcoin? SHA-256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force? the number of possibilities make it impossible to get the same result in someone’s life time.
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#4489

SHA 256

The number of computational possibilities is so high with a 256 hash that it would make brute forcing it near to impossible.
.

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#4490

  1. What is the hashing algorithm called used in Bitcoin?
    The hashing algorithm is called SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Brute forcing the algorithm is extremely difficult due to the length of the input data and the large computation possibilities involved in the amount of inputs used to match the hashes.

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#4491

What is the hashing algorithm called used in Bitcoin?
SHA-256

Why is this hashing algorithm really hard (almost impossible) to brute-force?
This hash algorithm is very difficult to brute force because the difficulty increase as more miners attempt to solve the equation. Therefore the more computational power you have, the more likely you are to solve the equation, but as you use more power the difficulty increases, requiring more power… and so on and so forth.

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#4492
  1. SHA-256
  2. The possibility of two people getting the same data input are very unliky to none considering the amount of computer power it takes to compute the hash rate
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#4493

  1. SHA-256

  2. Because it is unidirectional; it cannot be retraced to the seed hash.

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#4494

  1. What is the hashing algorithm called used in Bitcoin?
    Ans : SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Ans : Hash algorithms are designed to be unidirectional

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#4495

Couldn’t have said it better myself. Thanks!

#4496

Hashing

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#4497

1.) Secure Hash Algorithm (SHA - 256)

2.) The hash cannot be reversed to find the input value raw data, as well as each hash, is unique. The time and computing power at this point would take far too long and would be useless by the time you were even able to brute force the data.

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#4498
  1. SHA-256 is the hash function used in Bitcoin!
  2. Its impossible, its like trying to find the right star in the whole universe
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