[candela]

Thanks to stackoverflow and LibreOffice BITXOR function: FW4.50_enc XOR FW4.70_enc XOR FW4.46_dec = FW4.70_dec

aacskeys 0.4.0f by arnezami, KenD00, Key, Nobu1789, anon

Current path:                   C:\Utils\aacskeys-0.4.0f\bin\win32

MKBv:                           57
Device key:                     FDAD855E9A89E5335288AF2805DC0497
Processing key:                 8FBDD8452146552EF76136B0A348590B
Encrypted C-value:              7FA6B41E0846BFC4C6C3F724E0C709AC
Corresponding uv:               000008F9

Decrypted C-value:              EB5B7CF99384647AC73E94D01E72F3A9
Media key:                      EB5B7CF99384647AC73E94D01E72FB50

Encrypted verification data:    145DB381FC3E7595D341B2E07F9281AC
Decr verif data should be:      0123456789ABCDEF
Decrypted verification data:    0123456789ABCDEF10E219C1E08AD5B8

Unfortunately this doesn't help us for FW4.76 and higher