.MKF File Extension

BlackBerry Encrypted Media Key File

Developer Research In Motion
1.0  |  1 Vote

What is an MKF file?

Info.mkf is an encryption key stored on an encrypted BlackBerry SD card. It contains an AES-256 key used to encrypt the SD card's files. Info.mkf is a hidden file, so most users will never see it.

More Information

BlackBerry devices allow users to encrypt the files stored on their SD (also known as media) card. When a user chooses to encrypt their files, the device creates a file named info.mkf, which contains the encryption key used to encrypt the files.

Most BlackBerry users will never encounter or need to use info.mkf. Digital forensics professionals sometimes use info.mkf to recover a BlackBerry device's password (if the associated SD card's encryption was set to either Security Password or Device Password) and the files stored on an SD card.

Common MKF Filenames

Info.mkf - The name assigned to BlackBerry SD card encryption keys.

How to open an MKF file

Info.mkf is not meant to be opened. Elcomsoft Phone Password Breaker allows users to use an info.mkf file to recover a BlackBerry device's password (in the scenarios described above) and decrypt the files stored on its SD card.

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Programs that open or reference MKF files

Verified by FileInfo.com

The FileInfo.com team has independently researched the BlackBerry Encrypted Media Key file format and Mac and Windows apps listed on this page. Our goal is 100% accuracy and we only publish information about file types that we have verified.

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