<p>The password must be at least 1 character long.  I've not been able to find a maximum length.  I set the passphrase to be a 100,000 character string, and that worked fine.  Missing the last character off the end of the long string didn't work, so the 100,000th character is significant.</p>

<p>When first setting a passphrase the satoshi client requests that your passphrase be at least 10 random characters or 8 random words.  But it doesn't attempt to enforce its request.</p>

CC BY-SA 3.0
2012-05-29T10:31:23.227Z
2012-05-29T10:31:23.227Z
Chris Moore
<p>What are the requirements and limitations of the password that the satoshi bitcoin wallet allows the user to set?</p>

<client><encryption>
How complex can my bitcoin wallet encryption key be?
osmosis
# How complex can my bitcoin wallet encryption key be?

(Asked by: username_0 on 2012-05-29)

What are the requirements and limitations of the password that the satoshi bitcoin wallet allows the user to set?

**Tags:** client, encryption


---

## 1 answers

### Answer by username_1 on 2012-05-29. Score: 4 | Accepted answer

The password must be at least 1 character long. I've not been able to find a maximum length. I set the passphrase to be a 100,000 character string, and that worked fine. Missing the last character off the end of the long string didn't work, so the 100,000th character is significant.

When first setting a passphrase the satoshi client requests that your passphrase be at least 10 random characters or 8 random words. But it doesn't attempt to enforce its request.


---

