<p>You cannot. It is impossible to get the parent public key from the child public keys. This is because a hashing algorithm is used in deriving the child keys and hashing algorithms are not reversible.</p>

CC BY-SA 3.0
2018-02-17T16:47:40.253Z
2018-02-17T16:47:40.253Z
Ava Chow
<p>Hello I have a lot of derived public keys and derivation path to them how can I get root public key which was used to generate this pub keys?</p>

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Getting root pub key form derived public keys
Oskyk
# Getting root pub key form derived public keys

(Asked by: username_0 on 2018-02-17)

Hello I have a lot of derived public keys and derivation path to them how can I get root public key which was used to generate this pub keys?

**Tags:** public-key


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## 1 answers

### Answer by username_1 on 2018-02-17. Score: 2 | Accepted answer

You cannot. It is impossible to get the parent public key from the child public keys. This is because a hashing algorithm is used in deriving the child keys and hashing algorithms are not reversible.


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