Reading assignment: Hashing

Blockchain and Bitcoin 101
#4096
  1. The Algorithm is called Secure Hash Algorithm - SHA - 256
  2. SHA - 256 is extremely complex and next to impossible to guess
1 Like
#4097
  1. SHA-256 invented by NSA of America
  2. Solving the function outputs the hash. Reverse engineering the hash to output the function shouldn’t be possible yet (on sha-256).
1 Like
#4098
  1. What is the hashing algorithm called used in Bitcoin?
    The hashing algorithm used in Bitcoin is - SHA 256. Secure hashing algorithm 256.

2.Why is this hashing algorithm really hard (almost impossible) to brute-force?
The hashing algorithm is really hard to brute force, as the input is almost mathematically impossible to replicate an output.

1 Like
#4099

.) Bitcoin uses the algorithm SHA-256

2.) t has a zero to 256 digit function that produces a different output with each and every input, making it near impossible to duplicate. Thus it is unidirectional , one way kind of thing, once it is hashed it cannot be reversed

1 Like
#4100

bitcoin hashing algorithm is called the SHA-256

The algorithm is almost impossible to brute force because there is an insurmountable number of alphanurmeric code to try to run through to get the correct one.

1 Like
#4101
  1. What is the hashing algorithm called used in Bitcoin?
    Secured Hash Algorithm SHA 256
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    The SHA 256 is a unidirectional and linear algorithm and not reversible
1 Like
#4102

  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 Hash Algorithm is not reversible. So you can’t define the input based on the output

1 Like
#4104
  • What is the hashing algorithm called used in Bitcoin?
    SHA-256
  • Why is this hashing algorithm really hard (almost impossible) to brute-force?
    It cannot be reverse engineered, and can only be solved in a linear, unidirectional manner.
1 Like
#4105
  1. The hashing algorithm that bitcoin uses is SHA-256. Made by the feds.
  2. The hashing algorithm is hard to brute force do to its one-way mechanism that can only be solved linearly.
1 Like
#4106
  1. SHA-256
  2. Difficult to brute force because of the large number of possibilities involved. Would likely only be possible with a quantum computer.
2 Likes
#4107
  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?

The hash algorithm can only work in one direction.

1 Like
#4108
  1. SHA-256
  2. It is unidirectional. You cannot reverse the hash into the initial input.
1 Like
#4109

1 - The Algorithm is called SHA 256
2 - The algorithm is hard to break because it can’t be reversed and must be solved in a linear manner.

1 Like
#4110
  1. SHA-256
  2. The hashing algorithm works as a one-way mechanism that only allows for computation in a linear fashion and cannot be reverse engineered.
1 Like
#4111
  1. What is the hashing algorithm called that is used in Bitcoin?

Bitcoin uses the SHA-256 hash algorithm.

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

This hash function 1) is a one-way function that 2) takes an input of any size and converts it into an output of 64 hexadecimal characters (hash value) and 3) any changes of the input data will result into a completely different hash value. These characteristics of the hash function 1) prevent that the hash value can be used to reverse it back into the input data, 2) create an extremely large number of input-output pairs, which makes it more difficult to find the input data that matches a given hash value, and 3) prevent that the hash value may be used to “converge” towards the desired input, which altogether makes it infeasible to brute-force the original input.

1 Like
#4112
  1. SHA256
  2. It can’t be reversed engineered. It’s linear. Also large computations as possible inputs.
1 Like
#4113

  1. What is the hashing algorithm called used in Bitcoin?
    The consensus mechanism of Bitcoin’s blockchain algorithm is called SHA-256, short for Secure Hash Algorithm. 256 refers to the string length of encryption bits which are part of the formula which is the basis for Bitcoin’s private and public keys.

  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Because of the linear design of this algorithm, it only moves in one direction and cannot be reversed. And because of the possibilities inherent in a range of output from 0 – 256 there is a near zero possibility to duplicate or brute-force it. Furthermore, since the system allows a single target modification of up to 4x within the 256 range, the possibilities are virtually unlimited. It would be like trying to latch onto and copy just one atom among the trillions in our own galaxy.

2 Likes
#4114

  1. The hashing algorithm used in Bitcoin is called SHA-256, short for Secure Hashing Algorithm 256

  2. This hashing algorithm is almost impossible to brute force because it requires increasingly complicated mathematics, to produce a 256 alphanumeric code that is not reversible. Doing this requires the use of supercomputers

1 Like
#4115

Sha 256, secure hash algorithm
Ä°t is ome way

1 Like
#4116
  1. What is the hashing algorithm called used in Bitcoin? SHA-257
  2. Why is this hashing algorithm really hard (almost impossible) to brute-force?
    Because the input data can be any form & size, including digits, letters or even larger media files; which is almost impossible to brute-force. And it is one direction algorithm, it can not track back the input.
1 Like