Reading assignment: Hashing

Blockchain and Bitcoin 101
#2551
  1. SHA-256. POW
  2. One way function
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#2552

Yes, you are right. To find an input is what I meant. Got a bit mixed up with the terms :smiley:

#2553
  1. The hashing algorithm in Bitcoin is called SHA-256
  2. This hashing algorithm is near impossible to brute-force because of the extremely high number of computational possibilities, the computing power and time required to do so makes it infeasible.
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#2554
  1. sha-256
  2. it’s one way ticket, and change something in bitcoin’s blockchain, you need at least have more hash power then all bitcoin network(good luck :slight_smile: )
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#2555
  1. SHA-256
  2. The amount of possible inputs make brute forcing SHA-256 probabilistically impossible.
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#2556
  1. Its the SHA256 Secure Hash Algorithm 256 digits
  2. The unique hash algorithm makes it to where the output cant be reverse engineered
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#2557
  1. SHA-256
  2. It requires high amounts of computational capacity with the algorithms constantly changing
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#2558

  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 one-way hash function. It is done entirely by random. The amount of computational effort in order to brute-force is unfeasible, that by the time you have found a way to brute-force, many new blocks have been added to the ledger. ( expensive amount of computer power .)

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#2559

SHA-256

Brute force - too many possibilities in too little time.

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#2560
  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 statistical possibility of decoding an output to get input and that two inputs get the same output is virtually impossible
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#2561

  1. SHA-256

  2. It requires too much time and processing power to brute force.

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#2562
  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 input has its own unique output. Even small variations of the input results in completely different output.
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#2563

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

Secure Hash Algorithm (SHA-256)

2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
SHA-256 is really hard to brute-force because it takes a lot of computational effort and ressource and
SHA-256 generates 256-bit signature for a text , each input has it’s own unique hash

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#2564
  1. The hashing algorithm in using Bitcoin is called the Sha-256
  2. This algorithm is difficult to brute force and is very secure due to the fact that only with the same input you will receive the same output. Additionally, when you solve a bitcoin hash it is solved in a line with no trajectory. Also when you input a hash it is very difficult to reverse the hash using the algorithm.
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#2565
  1. SHA-256
  2. Because one cannot determine the input based on the output.
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#2566

It’s called SHA-256 and it was developed by the sneaky NSA.

It’s because it is hard to reverse the output of the function. It is a one way mathematical equation (I cheated on this, it is a bit hard for me to grasp this concept )

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#2567
  1. SHA 256
  2. Because it would take immense computational power which makes it basically impossible.
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#2568

Bitcoin uses the SHA-256 algorithm

To brute force the algorithm is very hard because finding the input from the output is almost impossible. It’s like mixing food in a blender and going backwards.

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#2569
  1. SHA-256
  2. the hash function transforms the input into a digest ( a fixed length string) that is almost irreversible it is computationally prohibitive at the present time. I would prove extremely difficult to to find the exact inputs which created the hash initially (and only the exact input would recreate it).
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#2570

1 - The hashing algorithm is called SHA-256

2 - Because the algorithm cannot be reversed to calculate the initial raw data as it is a one-way mechanism guaranteed through intricate mathematical equations.

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