Reading assignment: Hashing

Blockchain and Bitcoin 101
#4979
  1. What is the hashing algorithm called used in Bitcoin?
    A. SHA-256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    A. Because it is a one way mechanism and any 1 input change will totally change the output.
1 Like
#4980

  1. SHA-256

  2. the computational possibilities is far to high

1 Like
#4981
  1. SHA-256
  2. Because the input cannot be derived from the hash; it works in one direction only.
#4982

  1. SHA-256

  2. Because it is based of proof of work and a 256-digit variability (?)

#4983
  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256 - secure hash algorithm 256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    because it’s impossible to see input from the result of the hashing
#4984
  1. The hashing algorithm that is used in Bitcoin is sha 256

2.The reason that Sha 256 is difficult to brute-force is because it produces a 256-bit hash value that is nearly impssible to reverse engineer.

#4985

What is the hashing algorithm called used in Bitcoin?

SHA 256

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

Because you cannot invert it. SHA 256 is designed in a way that nobody so far was able to revert from an output to the initial input.

#4986

  1. The hashing algorithm used in Bitcoin is called SHA-256 (Secure Hash Algorithm 256-bit).

  2. This algorithm is considered difficult to brute-force because it is a cryptographic hash function, meaning that it is designed to produce a unique and irreversible output (the hash) from a given input (the data). The hash function is considered secure because it is infeasible to generate the same hash from two different inputs, and it is also infeasible to generate the original input from a hash.

In the context of Bitcoin, the SHA-256 algorithm is used to hash transactions and secure the blockchain. To brute-force the algorithm and find the original input, one would need to generate an enormous amount of hashes and compare them with the target hash, which would require an impractically large amount of time and computational power. Additionally, the hash output of SHA-256 is 256 bits, making it even more difficult to brute-force.

#4987
  1. The hashing function used in Bitcoin was originally developed by the NSA (USA) and is called SHA256.
  2. Because whatever data you choose to input, it produces a alphanumeric string of 64 characters and it is simply impossible to reverse the result back to its input. Also, the tiniest change at the input data completely changes the output data.
#4988

  1. What is the hashing algorithm called used in Bitcoin? → Bitcoin uses a Secure Hash Algorithm (SHA) named SHA-256

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force? → the difficulty of brute-forcing the Bitcoin hashing algorithm is due to the large number of possible hash outputs and the computational intensity of the hash calculation, as well as the ability of the network to adjust the difficulty of the hash calculation to maintain a contant block creation rate

#4989

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

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

Hash can never be treated as any form of fingerprint of the data, which was originally processed. Feeding bitcoin hash exactly the same data will produce the same hash.

#4990
  1. What is the hashing algorithm called used in Bitcoin?
    Secure Hash Algorithm (SHA) named SHA-256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Because you cannot invert it. SHA 256 is designed in a way that nobody so far was able to revert from an output to the initial input.
#4991
  1. Bitcoin uses SHA256 Hash Algorithm.
  2. SHA256 Hash Algorithm is almost impossible to brute-force because it’s nearly impossible to find two inputs that will result in the same hash.
#4992
  1. What is the hashing algorithm called used in Bitcoin?
    SHA256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The odds of successfully brute forcing are so low given the number of computational possibilities and the fact that hashes are random
#4993

The hashing algorithm used in Bitcoin is called SHA-256. It is hard to brute-force because it is designed to be a one-way function, which means that it is easy to compute the hash value for any given input, but almost impossible to compute the input from the hash value. Additionally, SHA-256 is resistant to collision attacks, which ensures that every transaction has a unique identifier that cannot be duplicated or tampered with.

#4994
  1. SHA-256
  2. The hash algorithm contains so many possibilities, that it makes it almost imposssible to brute force, due to the high computing power need.
#4995

  1. SHA -246

  2. Bitcoin has algorithms can only be solved to find the ultimate hash output, they can not be
    reversed to calculate the initial raw data.

    This one-way mechanism is guaranteed through intricate mathematical equations which do
    not allow the reversal of a new hash. Therefore, a Bitcoin hash is only solved in a linear,
    unidirectional manner.

    Example. Imagine that yo want to prepare a blended juice , you mixed the ingredients but it
    not possible to reverse the process.

1 Like
#4996
  1. SHA-256
  2. The hashing algorithm is almost impossible to brute-force because there is an infinite amount of potential inputs and outputs, chances of matching them randomly is highly unlikely.
#4997
  1. What is the hashing algorithm called used in Bitcoin?
    The hashing algorithm used in bitcoin is called SHA256.
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    There are too many possibilities when using the SHA256 algorithm so a brute-force attempt would not be worth the time/resources.
#4998

  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 is so high.