- SHA-256
- It generates 2^256 combination, so one needs to try all of them one by one to find an original string
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The hashing algorithm used in BTC is called SHA-256.
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The hashing algorithm is difficult, but not impossible, to brute-force because in order for one to compute the same input of another hash they must be either really lucky or very patient as each output is extraordinarily different given any change in input.
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1.Sha 256 is the hashing algorithm in Bitcoin.
2.In all applications of SHA256 in the Bitcoin Protocol, all the inputs are large enough to make a brute force attack impractical.
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SHA 256
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It would take too long to bruteforce it. Too many possibilites which makes it pre -image resistant.
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What is the hashing algorithm called used in Bitcoin? SHA-256
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Why is this hashing algorithm really hard (almost impossible) to brute-force? Lack of computer power and too many combinations. Literally impossible.
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Itās called SHA-256 and it gives hashes of 256-bits
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There are two infeasible but not impossible ways to break the hashing function. One is to beak pre-image resistance and the other is to break collision resistance. Pre-image resistance is a property of hashing functions which states that given an output (hash) from an input is is infeasible to determine de input. Collision resistance is another property of hashing functions which states that it is infeasible to find two inputs with the same function so that we can assume that if H(A) = H(B) than A = B. So the answer is that it is very hard because of the very same properties of hashing functions such as SHA-256 or Keccak-256.
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- What is the hashing algorithm called used in Bitcoin?
The hashing algorithm used in Bitcoin is called the Secure Hashing Algorithm 256, or the abbreviation: SHA-256.
2.Why is this hashing algorithm really hard (almost impossible) to brute-force?
āBrute-forceā refers to a method of hacking that requires randomly guessing an output and is commonly used to guess passwords. In the case of a hash, the high bit level of encryption ensures that a brute-force intrusion would require such an enormous number of guesses and take so long that it simply isnāt feasible. The numbers are astronomical, however, it is important to characterize the feat as āinfeasibleā rather than āimpossibleā.
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What is the HASHING algorithm called used in Bitcoin?
SHA256
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Why is this HASHING algorithm really hard (almost impossible) to brute-force?
Because it is a one-way process
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[quote=āivan, post:1, topic:8422ā]
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What is the hashing algorithm called used in Bitcoin? SHA256
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Why is this hashing algorithm really hard (almost impossible) to brute-force? to guess the original input or to just keep guessing forever will result in still not finding the original input due to the amount of Guesses required to find the input. Additionally when this hashing algorithm information is stored on Blocks stacked on Eachother you can not change any of the Blocks without making changes to the complete chain.,
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It is called SHA-256.
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In order to find the input of a particular Hash using brute force, we would have to select a random input and generate its hash using the algorithm. We have to keep repeating this until we find the match. The chances of doing it is very low. It takes so long time to do it, that it doesnāt even matter.
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- SHA-256
- Beacue 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. With large number of data the process is going to be so long thatās not feasible.
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What is the hashing algorithm called used in Bitcoin?
SHA256 -
Why is this hashing algorithm really hard (almost impossible) to brute-force?
Because you are effectively guessing your way an extremely long list of possible inputs and would take an incredible amount of time to go through.
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The hashing algorithm is called SHA-256.
It is infeasible to brute force because to find out the input of a hash, you will need to check every input and compare its hash, This will take very long especially when there is more data.
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The hashing algorithm in Bitcoin is called SHA 256 or Secure Hashing Algorithm 256.
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Each SHA 256 hash is unique to its data input and the output results in a fixed 256 bit size value. What this means is that the input can be of any length or size and it will always return the same fixed 256 bit sized output. To use brute force would mean that one would have to guess the length of the input and every possible combination of letters, numbers, spaces and characters used in the input to create the fixed SHA 256 hash and then compare the two hashes. The chances of guessing the right answer is infeasible.
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- SHA-256
- Endless amount of possibilities, making it difficult and would take forever.
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- SHA - 256
- It is near impossible as it takes sure a long time to find a match.
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- What is the hashing algorithm called used in Bitcoin? SHA-256
- Why is this hashing algorithm really hard (almost impossible) to brute-force? Because of the number of combinations of the hash length, it would take several generations to try to randomly guess the string, and you wouldnāt even come close.
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1/ Sha 256
2/ total number of possibilities is to high to get x out of Y
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The hashing algorithm used in Bitcoin is called SHA-256 (Secure Hashing Algorithm 256).
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It is almost impossible to brute-force SHA-256 because there are so many possible hashes (2^256) that it would take an inconceivable amount of time to solve this with current technology.
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shaw-256
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The SHA-256 hash algorithm takes input blocks of 512 bits (i.e. 64 bytes), combines the data cryptographically, and generates a 256-bit (32 byte) output. Since the output is a 256 bit string the amount of time to guess the output via brute force is infeasible though not impossible.
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