<p>Private keys are always 256 bits long, that is 64 hexadecimals.
The printed string is usually longer then that because format labels and redundancy are added.</p>

<p>Anything shorter cannot itself be a private key, but may be used to derive one (preferably with stretching).</p>

<p>The string given looks too non-random to be used to derive a private key.</p>

<p>In general, 34 random hexadecimals are adequate to derive private keys.</p>

CC BY-SA 3.0
2017-04-05T21:56:52.147Z
2017-04-05T21:56:52.147Z
lmnopcdefg
<p>Something like 111111111111111111111111111ABcDE1f.</p>

<bitcoin-core><private-key>
Is it possible to have a bitcoin private key (hex) with 34 length?
Baco
# Is it possible to have a bitcoin private key (hex) with 34 length?

(Asked by: username_0 on 2017-04-05)

Something like 111111111111111111111111111ABcDE1f.

**Tags:** bitcoin-core, private-key


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## 1 answers

### Answer by username_1 on 2017-04-05. Score: 0 | Accepted answer

Private keys are always 256 bits long, that is 64 hexadecimals.
The printed string is usually longer then that because format labels and redundancy are added.

Anything shorter cannot itself be a private key, but may be used to derive one (preferably with stretching).

The string given looks too non-random to be used to derive a private key.

In general, 34 random hexadecimals are adequate to derive private keys.


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