How to decrypt nautical sea chart key s63 encrypted by blowfish?

Question

Encryption

Downloaded the official test set of maps (s63) from IHO. The cards are accompanied by all the necessary information for decryption ( HW_ID , M_KEY ). Encryption algorithm: blowfish cbc.
The inputs are: HW_ID = "12345", M_KEY = "10121".
When I try to decrypt the card key itself (F81AC653B0AB63B0), which is encrypted with HW_ID (12345), I get obscure characters in the online decryption service and an empty string in the c ++ library (apparently it takes all data for padding).
Although in the end I had to get a key of 5 characters.
PS: The kit also comes with the so-called. USERPERMIT- which is essentially an encrypted HW_ID using M_KEY. And I successfully decrypted it back to "12345".