Problem when I try to create an address from zero

[BlackHatCoiner]

https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses
^In this link it shows us the procedure to create a bitcoin address (version 1)

I take the public key (0250863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b2352) and I hash it with SHA256:



Then it says that I have to take the result of SHA256 (0b7c28c9b7290c98d7438e70b3d3f7c848fbd7d1dc194ff83f4f7cc9b1378e98) and perform RIPEMD-160 to it. While the site says that the result should be that:

Code:

f54a5851e9372b87810a8e60cdd2e7cfd80b6e31

I get that:

Code:

6836d8a2986c8c34881114fe0412a1d416ae02a8

What do I do wrong? All the "ripemd160 hash online" sites print me the same result.

[PawGo]

Here it works as expected:
https://learnmeabitcoin.com/technical/public-key-hash

[pooya87]

it is because in your first hash you set the input type correctly but then you moved to another website that didn't have that option so your input type is wrong. more accurately your RIPEMD160 is interpreting the input (0b7c28...) as a UTF8 string not hexadecimal input.

[o_e_l_e_o]

Here, use this site instead: https://www.pelock.com/products/hash-calculator

As pooya87 says, the output of the SHA256 needs to be inputted in to the RIPEMD160 function as hexadecimal bytes, and not as a plain text string. If you take the result of your SHA256 hash:

Code:

0B7C28C9B7290C98D7438E70B3D3F7C848FBD7D1DC194FF83F4F7CC9B1378E98

And enter it in to the second box down titled "Hash hex bytes" and then hit calculate, you will get the correct RIPEMD160 result:

Code:

F54A5851E9372B87810A8E60CDD2E7CFD80B6E31

[BlackHatCoiner]

Thank you, it works properly.

Are there any libraries that allow me to convert hex to ripemd160 with javascript? I'm trying to build something.

[BASE16]

Here https://github.com/bitaps-com/jsbtc

Test page: https://github.com/bitaps-com/jsbtc/blob/master/test/jsbtc.test.js

Or here https://github.com/bitcoinjs/bitcoinjs-lib

Test page: https://github.com/bitcoinjs/bitcoinjs-lib/blob/master/ts_src/crypto.ts