Bitcoin Hashing Algorithm

[sniperx]

is there any source where i can read the core bitcoin hashing algorithm in depth?

Thanks in advance.

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[Meni Rosenfeld]

http://en.wikipedia.org/wiki/SHA-2

A hash in Bitcoin corresponds to two applications of SHA-256.

[gweedo]

What do you mean the core bitcoin hashing algorithm? You mean to create bitcoin addresses? https://en.bitcoin.it/wiki/Technical_background_of_Bitcoin_addresses

[Atruk]

is there any source where i can read the core bitcoin hashing algorithm in depth?

Thanks in advance.

How much depth do you want?

http://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf (awfully big pdf file)

[sniperx]

thanks all, what i mean is it a direct usage approach of SHA-256 or it's some sort of customized SHA algorithm, if general SHA-2 algorithm there are plenty of resources if not, please point me where i can read more about it.

[Atruk]

thanks all, what i mean is it a direct usage approach of SHA-256 or it's some sort of customized SHA algorithm, if general SHA-2 algorithm there are plenty of resources if not, please point me where i can read more about it.

It's just two rounds of SHA-256, the standard stuff.

[DannyHamilton]

None of it is customized.  All of it is industry standard.

Most of the hashes in Bitcoin are SHA-256 (or a SHA-256 hash of a SHA-256 hash depending on where it's being used).

Be aware, however, that Bitcoin also uses a RIPEMD-160 hash when creating a Bitcoin Address.