Help making custom charset/rule

[james123]

• # Contains at least 1 digit
  # Contains at least 1 letter
  # Same letter or digit may only exist twice in same key
  # At least one letter or digit exist twice in same key
  

Do you know this for sure?

What you described about before sounds very similar to BT Homebub v2.

It is made by Thomson.

Charset is 23456789abcdef
Length 10
Lowercase

See stkeygen for more info.

If it is exactly the same then a precomputed word list would be gigantic because it is salted.

CPU is far too slow to crack this but if one was coded for a GPU it could be cracked within a few hours.