I recently changed the decryption key to my WD My Passport HDD two days ago. Before I left for the weekend, I tested to make sure that the key would work. However, the password that I set, which got from the pseudo-random key generator, does not work anymore. I copy/pasted the password into the field to change it, and I always make sure that I have copied the correct item before confirming the change. That all said, there exists a possibility I hit a key while trying to copy the password and did not notice, so I hopefully know the 95% of the password.
Are there any tools available to crack external hdd in a scenario like mine?
Edit: I used WD's Drive Unlock full disk encryption