A (disc key) is a unique 32-character hexadecimal code required to decrypt encrypted PlayStation 3 game ISO files so they can be played on emulators like RPCS3 or on consoles using custom firmware (CFW). How to Use a PS3 dkey
The traditional tool used to permanently unlock an ISO is a lightweight utility called PS3Dec . ps3 dkey
PS3Dec.exe d key [YOUR_DKEY] "[INPUT_ENCRYPTED.ISO]" "[OUTPUT_DECRYPTED.ISO]" A (disc key) is a unique 32-character hexadecimal
To clarify:
The EID is encrypted on the hard drive/flash memory. To decrypt it, you need the key. The key is not stored anywhere in readable form on the hard drive; it exists only within the secure memory of the Cell processor during runtime. To decrypt it, you need the key
If your original PS3 console has a failing or dead Blu-ray disc drive, the console's firmware will reject physical game discs. By decrypting an ISO file using a dkey, you can bypass the physical drive requirement entirely and boot your backups directly from the hard drive or a USB storage device on custom firmware (CFW). 2. PC Emulation (RPCS3)