Reading assignment: Hashing

Blockchain and Bitcoin 101
#1730
  1. SHA - 256
  2. it would take 2 to the 256 power tries to try to get the right one and it would take someone a lifetime to do that
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#1731
  1. SHA 256
    2)it takes a long time , mathematical effort to find the imput based, almost imposible due 2^256 posibilities.
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#1732
  1. Sha-256 is the hashing algorithm used in Bitcoin.
  2. Algorithm is almost impossible to brute force because it is very difficult/very highly unlikely to find 2 inputs to produce the same output/collisions when using hash functions.
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#1733

  1. What is the hashing algorithm called used in Bitcoin?
    Secure Hashing Algorithm 256

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

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#1734
  1. Secure Hashing Algorithm 256 (SHA 256)
  2. Brute force would mean to try to figure out the right combination of letters and apply directly and somehow it will match. Without having anyway or clue to know what the actual series of numbers and letters could be it would take an impossible amount of time to try all of them to get the the exact correct one.
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#1735
  1. SHA256
  2. It’s almost impossible to guess the input using output.
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#1736
  1. SHA 256
  2. It is almost impossible to brute force because it is unlikely to get out of the same input the same output.
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#1737

Bitcoin uses SHA-256
The number of possibilities are so great, and the time to acquire the answer is reduced to only ten minutes.

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#1738
  • 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 go from input to output and you need the same exact input to get a particular output.
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#1739

1.SHA-256
2. it is diffucult to find the input using the output. The chain is very long, too long to find out. Using a quantum computer.makes it perhaps possible.

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#1740
  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?
    There are so many possibilities that it would take lifetimes to guess.
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#1741

  1. What is the hashing algorithm called used in Bitcoin?
    SHA-256 (Secure Hashing Algorithm 256)

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    If we use the average rate to calculate why it is infeasible to brute-force (2^127), you can see this is a very big number and would not be worthwhile computationally to crack it.

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#1742

SHA-256
The number of possibilities are too high, can’t brute force.

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#1743

1.SHA-256
2. the number of possibilities are very high so the chances of two people getting the same answer is unlikely

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#1744

1- SHA256
2- Because the odds of correctly guessing the input from the output by chance (or brute force) are so small that it would take longer than several lifetimes to achieve.

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#1745
  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 the only way to verify if input you have chosen is correct input is to simply work out the hash and compare the output received to what you know the correct output to be. You would simply have to repeat that guessing process until you happened across the correct input…
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#1746

  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 amount of time takes so long that it doesnt matter?

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#1747
  1. What is the hashing algorithm called used in Bitcoin?
    Secured Hash Algoritm 256 bits. (SHA 256)
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    How more difficult it is, how more secure the network become. This gives more reason to trust the network.
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#1748
  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?
    Bitcoin uses a difficulty adjustment called Nonce. Nonce is adjusted to make solving the equation more difficult to keep pace with computing power. Nonce is a string of random numbers generated by the cain and used to solve the block. As the computing power increases the Nonce adds more 0 increasing the difficulty of solving the equation.
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#1749
  1. SHA-256
  2. there are 2^256 – 1 times possibilities and we have to try it by random input. It takes so much time.
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