Required Vulnerability Assessment,Encryption,Malware,Penetration Testing freelancer for Bitlocker decryption job

I have an external drive which is encrypted with a complex password using Bitlocker.
The task is to unlock the drive without affecting the contents. No recovery code is available.
May be Brute Force should work.
I must say that password is complex to match.

Skills & Expertise Required

Vulnerability Assessment Encryption Malware Penetration Testing