Why does it work this way? What does encryption mean anyway?Įncryption is essentially classified as a high-level data storage security process. This is the reason why dealing with encrypted data is relatively slower than accessing unencrypted files. Theoretically, every time you access a file from your encrypted SD card, Android goes through the RAM first to retrieve the key and use it to decrypt the file. The password or key is stored in your mobile device's Random Access Memory (RAM). You can only decrypt the SD card files by inserting the SD card into the mobile device that was used to encrypt it and then entering the correct password when the device is powered on. Lose any of these, and your encrypted SD card files will be inaccessible. Android's encryption algorithm is based on two major factors - the mobile device and the password. Unfortunately, it is virtually impossible to access or decrypt the files on your SD card without the right password.
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