When a PS3 game is dumped as a "Redump ISO," it remains in its original encrypted state. The dkey acts as the digital "unlock" to make these files readable.
This is the master key factory-fused or strictly embedded within the console's Encrypted Information Data (EID) sector. It is the absolute root of the console's identity.
The history of the dkey is tied to the progression of PS3 exploits.
Here’s how to use a .dkey file on a PS3 running CFW or PS3HEN. ps3 dkey
The EID is a large data structure stored in the PS3's flash memory (NOR or NAND). It is divided into multiple segments (EID0 through EID5). It contains:
A "DKey" (sometimes called Device Key or Decryption Key) in the PS3 context refers to cryptographic keys used by the PlayStation 3 to encrypt and authenticate system firmware, game content, or device-specific data. These keys are part of the console’s security architecture; they allow the PS3 to verify and decrypt signed software, protecting Sony’s intellectual property and preventing tampering.
: You can also use an IRD file (Internal Reflection Data) as an alternative to a manual dkey. Tools like PS3 ISO Rebuilder use these files to verify and decrypt game data simultaneously. Troubleshooting When a PS3 game is dumped as a
: The tool will use the dkey to create a decrypted version of the ISO, which can then be mounted or extracted for use. Where to Find PS3 dkeys
In modding circles, the terms and EID Root Key (ERK) are sometimes used interchangeably, which causes confusion.
Insert your original PS3 disc into your PC drive and run the program. The program will look up the game, find or generate the matching dkey/IRD, and dump a fully decrypted version of the game directly to your computer. Method 2: On-Console Decryption via Evilnat CFW It is the absolute root of the console's identity
To decrypt your .iso backup manually on a PC, you must download a command-line decrypter tool known as . Method 1: The Command-Line (PS3Dec)
Ensure you have the .key or .dkey file matching your ISO's specific region and version.
This article explains what a PS3 DKey is, how it works, and how to use it for on-the-fly decryption. What is a PS3 DKey?