Reading assignment: Hashing

Blockchain and Bitcoin 101
#4359

brute-force method means that you have to pick up a random input, hash it and then compare the output with the target hash and repeat until you find a match.

1 Like
#4360

Hi! Rob her on Hashing:

1.) SHA-256 is the Bitcoin Hashing Algorithm

2.) The SHA-256 algorithm is really hard (almost impossible) to brute force because it is a ONE WAY mechanism guaranteed through mathematical equations not to allow reversal calculations to reveal the initial raw data. The algorithm can only be solved in a linear, unidirectional way and cannot be used as a digital fingerprint of the data which was originally processed.

1 Like
#4361
  • What is the hashing algorithm called used in Bitcoin?
    Secure Hash Algorithm (SHA)-256 developed by the USA by the NSA.
  • Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Given the current technology a brute force attack is almost statistically impossible.
    It would likely prove too costly as well.
1 Like
#4362
  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?

Bitcoin has algorithms that can solve the hash output. This canā€™t be reversed to calculate the initial raw data.

1 Like
#4363

1.SHA-256

2.Bitcoin hash algorithms can only be solved to find the hash output, they can not be reversed to calculate the initial raw data.Itā€™s a one way mechanism based on mathematical equations that ensures that new hashes canā€™t be reversed

1 Like
#4364
  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?

Its pretty secure
https://www.youtube.com/watch?v=S9JGmA5_unY

1 Like
#4365

  1. SHA 256 Secure Hashing Algorithm.

  2. The hashing algorithm is really hard and difficult to brute-force because it is unidirectional and each input produces a unique output and it is extremely difficult or currently impossible to figure out the input from the output.

1 Like
#4366
  1. SHA256.
  2. BECAUSE each unique input gives unique output and its not possible to go from output to input.
1 Like
#4367
  1. SHA 256
  2. The hashing algorithm produces 2^256 different possibilities. It is almost impossible to brute force the system in a viable period of time.
1 Like
#4368
  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 Linear and unidirectional
1 Like
#4369
  1. The bitcoin hashing algorithm is called SHA 256
  2. The hashing algorithm is almost impossible to brute force because it is a proof of work function. Each hash is unique and can only be solved to find the output and cannot be reversed.
1 Like
#4370
  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 a unidirectional function and current technology would take a tremendous amount of computational time making it virtually impossible.
1 Like
#4371
  1. SHA-256
  2. There are so many possible combinations of inputs that itā€™s nearly impossible to guess them correctly.
1 Like
#4372

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 is a one way mechanism that can only be mathematically solved to find the ultimate hash output. The algorithm cannot be reversed to calculate the initial raw data.

1 Like
#4373

1.) The Hashing algorithm is called SHA-256 bit.
2.) It takes a lot of computing power and even then, thereā€™s no guarantee you will win the Hash lottery

1 Like
#4374

1.Secured-Hash-Algorithm (SHA) - SHA-256
2. Hashing algorithm make sure that you canā€™t determine the input from the output. So if you want to brute force it you have to guess which would take probably more time than sending a person to the sun

1 Like
#4375
  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 is nearly impossible to due via brute-force because of the large computation involved which would take a very long time and at a very high (uneconomic) cost.

1 Like
#4376
  1. SHA-256
  2. these Bitcoin has algorithms can only be solved to find the ultimate hash output, they can not be reversed to calculate the initial raw data.
1 Like
#4377

  1. It is called the SHA

  2. the number of possibilities is too large

1 Like
#4378
  1. its called SHA- 256
  2. because the mining process is conducted in a lottery fashion it would be pretty uneconomic to try and beat the algorithm.
1 Like