Bitcoin Forum

Hi, I'm trying to generate Bitcoin address from private key manually following this article https://en.bitcoin.it/wiki/Technical_background_of_version_1_Bitcoin_addresses
But when I apply SHA-256 to public key mentioned in example I'm getting another hash then shown in this article. Same happens when I perform RIPEMD-160 hashing of SHA-256 hash.
It happens not only when I follow this article but any other article too.
Could someone suggest what did I do wrong?

You're probably hashing a string and not a hex. On the third step, you'll have to hash it as a hex and not as a string. Based on the wiki's example if you hash the corresponding public key as a hex you'll get the correct result:


But if you hash it as a string you'll get a different result, which is:

You can hash a hex through emn178.github.io (https://emn178.github.io/online-tools/sha256.html). Just choose "hex" instead of "text" in the input type dropdown. Same thing must happen on RIPEMD-160.

Great! This is it. Maybe you may suggest any tool which can encode HEX values using RIPEMD-160?

But this is not an encoding. It's a hash function. Encoding means that it can also be decoded, for example a base64 text. Anything that has passed through a hash function like SHA256 or RIPEMD-160 means that there is no way back. As for recommended tools, what exactly are you looking for? Tool can be a line of code, a library or a site just like the one I posted. You have to clarify what you want to do.

I mean tool for performing RIPEMD160 hashing for HEX values. Because all online hash tools work only with String input data

I've used this before: https://www.pelock.com/products/hash-calculator.

Go to the page and input the values in hash hex bytes and scroll down for RIPEMD160.

https://learnmeabitcoin.com/tools/ripemd160/

Thanks!!!

i used this https://www.mobilefish.com/services/cryptocurrency/cryptocurrency.html to learn how to generate bitcoin address from random numbers.


Use it to learn how bitcoin works and never send bitcoin to it.

I had the same problems, the study is the key. For educational purpose a made this:
https://bitcointalk.org/index.php?topic=5322103.0
And use this site to learn how hash works:
https://www.fileformat.info/tool/hash.htm
This forum has a lot of material, for increase your  learning.