Talk:How bitcoin works - Revision history

Taras: Unsigned comment

2014-08-15T02:03:08Z

Unsigned comment

← Older revision		Revision as of 02:03, 15 August 2014
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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}}

Cruiser moves at 16:29, 20 October 2011

2011-10-20T16:29:05Z

← Older revision		Revision as of 16:29, 20 October 2011
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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 ==

Shrewdwatson: predict a cryptographic hash function

2011-04-23T11:41:50Z

predict a cryptographic hash function

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== 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.