Reading assignment: Hashing

Blockchain and Bitcoin 101
#3735

  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?
    Because it has a one-way mechanism that has intricate mathematical equations.

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#3736

1.Secure Hash Algorithm named SHA - 256.

2 It’s hard or almost impossible to reverse the output of the function to get back the input.

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#3737
  1. What is the hashing algorithm called used in Bitcoin?
    algorithm: SHA-256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    It is irreversible algorithm. It is so complex that it si impossible to reverse output back into input.
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#3738
  1. SHA-256
  2. The probability of breaking by brute force, i.e. find the input based on the output, is very low due to large computation involved. To find the correct answer, one would need to compute 2^256 (SHA-256) different possibilities, which is 78 digit number.
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#3739

SHA-256
The SHA-256 is one directional output that is impossible to reverse engineer back to its input.

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#3740

  1. SHA-256

  2. This hashing algorithm is really hard to brute force because the algorithm can only be solved to find the ultimate hash output, they can not be reversed to calculate the initial raw data.

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#3741

Q: What is the hashing algorithm called used in Bitcoin?

A: Secure Hash Algorithm

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

A: It has a one-way mechanism that does not allow the reversal of a new hash. So, the hash get solves in a unidirectional and linear manner.

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#3742
  1. Secure Hash Algorithm - SHA-256
  2. It´s one-way method. It doesn´t allow the reversal of a new hash.
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#3743

1.SHA-256
2. The sheer number of computational possibilities is simply to high for it to be brute forced.

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#3744

1)256bit secure hashing algorithm SHA256

2)SHA256 is hard to brute force and crack due to they way it converts any input (text or numbers) into a unique alphanumerical code, it uses 256bit encryption as output which to find would take to long to compute, making it almost impossible to guess the string/origins of the hash.
(the digital fingerprint is unique to the original file and super encrypted. meaning the input cannot be guessed by the output)

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#3745
  1. SHA-256
  2. it would take an unimaginable amount of time, based on the number of variations
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#3746

Hashing algorithm in bitcoin is called SHA-265
Why is it hard to brute-force? From what I understand , and correct me if I am wrong, but what this “solving difficult mathematical equations” is, is simply put a “guesswork”. Since it is already “guessing”, I can’t see how it would be possible to shortcut it other than having more computing power or a crystal ball :slight_smile:

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#3747
  1. SHA-256
  2. Because it has a 0 to 256 digit function that produces a different output with each input.
    To reverse an executed function in the blockchain is impossible.
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#3748

  1. SHA-256

  2. A hash between 0 to 256 bit makes it impossible to brute force. The amount of energy/calculating capacity needed to solve the exact function used to get to the specific output is simply astronomical. Plus, it is irreversible.

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#3749
  1. SHA-256
  2. The vast amount of computational possibilities makes it near impossible
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#3750
  1. What is the hashing algorithm called used in Bitcoin?
  • Bitcoin’s hash algorithm is SHA-256
  1. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    *Because the functions are create to procure a unique 256 bit hash that is nearly impossible to reverse engineer.
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#3751
  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?
    Because having only the output you cant obtain the input, any little change in the input gives you a completly diferent solution on the output, plus the amount of energy needed to solve the hash and the changes produced every 2016 blocks.
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#3752
  1. Bitcoin algorithm is called SHA 256.
  2. Hashing algorithm is nearly impossible to brute force because it is unilateral and has 256 digit code.
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#3753
  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?
    Each algorithm produces unique hashes, so the possibilities of output is just too much. Also, it cannot be reversed to calculate the raw data.
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#3754
  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256 (Secure Hashing Algorithm - 256 bit length hash)
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    It requires a lot of computing power. Each hash is unique, not giving any partial information about the neigboring hashes.
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