Private Key Generation

[JPage]

Is it possible to form a custom private key?   For example, could one 'set' the first 2/3rds of the characters - and compute the remaining 1/3 to form a valid private key?  

What is the formula for determining whether or not a character string is a valid Bitcoin private key?


I understand this would make it far less random, and far less secure.  For this application, that is OK.

[1714988489]

1714988489

[1714988489]

1714988489

[amaclin]

Is it possible to form a custom private key?   For example, could one 'set' the first 2/3rds of the characters - and compute the remaining 1/3 to form a valid private key?

The private key is a number.
Just a number between 1 and 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140
Any number in this range is valid private key ready to use
https://en.bitcoin.it/wiki/Private_key

[JPage]

Is it possible to form a custom private key?   For example, could one 'set' the first 2/3rds of the characters - and compute the remaining 1/3 to form a valid private key?

The private key is a number.
Just a number between 1 and 0xFFFF FFFF FFFF FFFF FFFF FFFF FFFF FFFE BAAE DCE6 AF48 A03B BFD2 5E8C D036 4140
Any number in this range is valid private key ready to use
https://en.bitcoin.it/wiki/Private_key

OK, Thanks for pointing to the Wiki, it has the info in there.

[bob123]

You should know, that there are scrapers around who look for BTC Addresses with private keys created with simple (and most used ) passwords... just to empty them
after any amount of btc is send to them.