Talk:How bitcoin works: Difference between revisions
Shrewdwatson (talk | contribs) predict a cryptographic hash function |
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== Broken Link == | |||
"For those who want to get into mining without much difficulty, click Here for a free 10 step guide on iscyspace." [[User:Cruiser moves|Cruiser moves]] 16:29, 20 October 2011 (GMT) | |||
== predict a cryptographic hash function == | == predict a cryptographic hash function == | ||
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IMO the words "predict", "unpredictably" is misleading. The SHA256 cryptographic hash function is deterministic, so its result can be predicted by... the same function. :) | IMO the words "predict", "unpredictably" is misleading. The SHA256 cryptographic hash function is deterministic, so its result can be predicted by... the same function. :) | ||
The key property is that the reverse function is costly, that's all. | The key property is that the reverse function is costly, that's all. {{unsigned|Shrewdawtson|11:41, 23 April 2011}} | ||
Latest revision as of 02:03, 15 August 2014
Broken Link
"For those who want to get into mining without much difficulty, click Here for a free 10 step guide on iscyspace." Cruiser moves 16:29, 20 October 2011 (GMT)
predict a cryptographic hash function
"Both the chaining, and the difficulty, are achieved via the SHA256 cryptographic hash function. The hash function essentially takes a block of data, and transforms it, in an effectively-impossible to reverse or to predict way, into a large integer. Making the slightest change to a block of data changes its hash unpredictably"
IMO the words "predict", "unpredictably" is misleading. The SHA256 cryptographic hash function is deterministic, so its result can be predicted by... the same function. :)
The key property is that the reverse function is costly, that's all. — Preceding unsigned comment added by Shrewdawtson (talk • contribs) at 11:41, 23 April 2011