CODEWITHSUNDEEP
encryptionbitcoinsha256
Enayet Hussain
Enayet Hussain

Reputation: 1018

SHA256 Hash doesn't match the one listed on Bitcoin Wiki

I am trying to create a bitcoin address by following the steps shown here. However, I am getting a different hash then the one shown in step 2.

Calculating the SHA256 hash on:

0250863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b2352

Gives me the output:

a9ce83de3a0ff3516b7c50cdd787e9f69f152f227d93c9512774231e7132e925

The problem is according to the Bitcoin wiki I should get the following hash: 

0b7c28c9b7290c98d7438e70b3d3f7c848fbd7d1dc194ff83f4f7cc9b1378e98

Can someone explain why I am not getting the same hash as the wiki?

Upvotes: 1

Views: 257

Answers (1)

Raghav Sood
Raghav Sood

Reputation: 82553

You are treating 0250863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b2352 as an ascii string, whereas you should be treating it as a hex representation of 32 bytes.

If you use it as a string, you get:

echo -n "0250863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b2352" | openssl sha256
(stdin)= a9ce83de3a0ff3516b7c50cdd787e9f69f152f227d93c9512774231e7132e925

If you treat it as bytes, you get the right result:

echo -n "0250863ad64a87ae8a2fe83c1af1a8403cb53f53e486d8511dad8a04887e5b2352" | xxd -p -r | openssl sha256
(stdin)= 0b7c28c9b7290c98d7438e70b3d3f7c848fbd7d1dc194ff83f4f7cc9b1378e98

Upvotes: 1

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