Feature Request: bech32 nsec error detection

[jb55]

I got this email:

I got a new phone. I have entered the private key exactly and I’m getting an invalid key error. I’ve tried several times. I don’t know what to do.

It's possible they wrote it down wrong? we can use bech32 error detection to recover from these situations

[linear[bot]]

IOS-2076 Feature Request: bech32 nsec error detection

[alltheseas]

Hm. How many characters is nsec supposed to have?

How many characters does this user count in their nsec?