Reading assignment: Hashing

Blockchain and Bitcoin 101
#3595

  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?
    Almost impossible to brute force because it has a zero to 256 digit function that produces a different output with each and every input. Every input has a unique hash and when lots of data is being handled the possibilities of finding a match is infeasible.

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#3596

Sha-256

It takes a value at any size and turns in into a specified size number. Any changes to the input creates a drastically different output. Also it is a one way function that cant be reversed. You have to brute forse until you find the one that works witch could take years.

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#3597
  1. SHA- 256
  2. Hashing algorithm is hard to brute-force due to its one-way non-reversal nature. It can only be solved to find the ultimate hash output. It can’t be reversed to calculate the initial data.
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#3598

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

  2. This hashing algorithm is almost impossible to brute-force because a hash can only be solved in one direction. It can not be reversed.

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#3599

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256 (stands for Secured Hash Algorithm 256-Bit as developed by the US Government organization known as the NSA)

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The Hashing Algorithm cannot theoretically be breached as the Hash mechanism is a processing unit that intakes data of any size, configuration or arbitrary length and outputs a fixed length value called “a Hash”. The resultant “Hash” is the Cryptographic result of the hash algorithm. Each hash representation is a unique one way calculation that cannot be reversed or reverted to its original format. (i.e. a Blender full of fruit & ingredients after blending / or trying to unscramble an egg.)

RJR
2021-02-28T05:00:00Z

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#3600
  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?
    Too many possibilities , you can’t reverse engineer it , any changes in input even one character would produce a different output. Data can only be replicated if it is the exact same as original input. Getting the correct input to duplicate would be equivalent to winning the lottery.
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#3601

1.) It is called SHA-256. (Securehashalgorithm)

2.) The Bitcoin-Hash is only solved in a linear and undirectional manner, it is not reversal. Its like ingredients in a mixer. After mixing it, it is impossible to bring it back to the condition the ingredients had before.

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#3602
  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?
    cause is one way algorithm and resistance to images, collisions, etc.
1 Like
#3603
  1. SHA-256 (Secure Hash Algorithm)
  2. It is too computationally intensive to find the original hash number which leads to the output. 2^256 possible attempts. It is unidirectional as well.
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#3604
  1. SHA-256
  2. Hashing algorithms by design cannot be reversed, so the only way to break the algorithm is by brute-forcing through all the distinct permutations (2^256), which is impossible in polynomial time.
1 Like
#3605

  1. What is the hashing algorithm called used in Bitcoin?
    Secure Hash Algorithm SHA-265

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The number of possible inputs is extremely high, if not infinite. Current technology could not process this in a useful amount of time.

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#3606

Q1. What is the hashing algorithm called used in Bitcoin?
A. SHA-256
Q2. Why is this hashing algorithm really hard (almost impossible) to brute force?
A. Each hash has its own distinct features and produce unique hashes. The output of the input function cant not be reversed due to its distinct unique hash (SHA-256 created my the NSA)

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#3607
  1. The hashing algorithm used in Bitcoin for the consensus mechanism is called Secure Hash Algorithm, and the size used is 256bit, therefore the specific hashing algorithm here is referred to as SHA-256.
  2. This Hashing Algorithm is so hard to brute-force because it is only solvable in a linear, unidirectional manner and is therefore un-reversible.
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#3608

1- Bitcoin uses a Secure Hash Algorithm (SHA) called SHA-256.
2- These hash algorithms are irreversible. In other words, you cannot find the raw material or input; you can only see the output. That is why they are almost impossible to brute-force.

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#3609
  1. Bitcoin uses secure hash algorithm - 256bit SHA-256
  2. hash is the cryptographic result of a hash algorithm, therefore, it makes a unique mathematical
    equations impossible to break.
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#3610
  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?

It works in a unidirectional manner.
It is near impossible to reverse engineer the original input.

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#3611

Oh I love your smoothie comparison

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#3612

1, What is the hashing algorithm called used in Bitcoin?

  • SHA256

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

  • Hash functions only work in one way, can not be reversed.
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#3613

1 The Hash algorithm is called SHA-256

2Its hard because of the large computation in the the possible inputs to match de hash

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#3614
  1. (Q) 1. What is the hashing algorithm called used in Bitcoin?

(A) Secure Hash Algorithm (SHA) named SHA-256

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

(A) Because producing a value is very random and the likely hood of getting the same value is near impossible. That is why it is like winning the lottery.

1 Like