Reading assignment: Hashing

Blockchain and Bitcoin 101
#2571
  1. shah256
  2. Hard to brute force because each output is 256 bits in length regardless of input and would take a lot of time and computation power to try and guess
1 Like
#2572
  1. SHA-256
  2. Finding the correct solution by brutal force will take’s ages.
1 Like
#2573

SHA-256
because PoW is based on solving mathematical equations that require a lot of computation. While mining bitcoin you’re competing with the whole network in the chance of finishing a block and getting rewards. In order to have a slight chance to brute-force the process, you would need to take over the hash power which is almost impossible

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#2575

1.- The hashing algorithm in Bitcoin’b lcockhain is the Secure Hash Algorithm (SHA) named SHA-256
2.- The number of possibillities is extremly huge so to brute force it by iterating solutions it will take an extraordinary huge amount of time for the current systems

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#2576

Sha 256

Take to long to solve the math.

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#2577

  1. Secure Hash Algorithm (SHA-256) Invented by the NSA and allow to solve very difficult math equations adding blocks to the Bc. Blocks added after hashes verification. Objective : keep the Bc safe and secure.

  2. Mathematics : almost impossible to find the input thanks to the output

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#2578

1.SHA-256
2. The number of different outcomes is so high that it is unlikely to accomplish

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#2579

  1. SHA - 256

  2. Because the number of possibilities is so high that will be impossible in terms of time and computational power.

1 Like
#2580
  1. BTC Hash Algorithm is (SHA) named SHA-256
    2.The ability to find the input based on the output is so difficult its impossible.
2 Likes
#2581
  1. What is the hashing algorithm called used in Bitcoin?
    Hashing algorithm is called SHA-256 (Secure Hash Algorithm)
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    It’s hard to brute force because it generates an almost-unique 256-bit (32-byte) signature for a text, and each input has it’s own unique hash…
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#2582

1 SHA 256
2 because the dificulty of the decreption is too high

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#2583
  1. SHA-256
  2. Hashing is a one way process and the computational power to brute force find the input from a hashed output is too great for current computers to manage. There are an astronomical amount of incorrect answers and only 1 correct answer for what the input could be so the likelihood of forcing it is virtually impossible. Quantum computing may be able to do this in the future though and could be a risk to the existing hashing algorithms.
1 Like
#2584
  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?
    There are so many possibilities that it would take and impossible amount of time and energy to try to solve.
1 Like
#2585
  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?
    For reasons I don’t understand, to reverse engineer the hash to arrive at the block header is mathematically prohibitive both theoretically and practically.
1 Like
#2586

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

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The hash function is a one-way function it is almost impossible and economically not feasible to revert to original input values due to the amount of compute and energy that will be need to reverse the functions output.

1 Like
#2587

SHA 256
too many combinations to brute force

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#2588

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

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Because it will take too much computation to find the exact input that has produced that same resu

1 Like
#2589
  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?
    There are too many posibilities and can’t determine the input based on the output. It’s a one way mathematical algorithm.
1 Like
#2590

SHA-265 is the hashing algorithm that bitcoin uses (or uses the most)

its almost impossible to get the same hash when u do not have the excact same input. and its very hard to try and get the input only by knowing the output

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#2591
  1. The hashing algorithm used in bitcoin is called SHA-256.
  2. The hashing algorithm is really hard to brute-force, due to the linear direction of the hash, the uniqueness of the algorithm, inability to reverse the algorithm.
1 Like