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Message, Text Encryption iPhone iOS

Other Topics

Quick Start

Encryption
Decryption

Multiple File Selection


Forgotten Password

A - Select Media File

B - Choose Root Working Directory

C - Selected File/Folder


Once a file or folder is selected, it can be:

D - Encrypted File

E - Settings

F - More Button

G - Set Session Password

H - Encrypt/Decrypt Button

More ...

Wiping:
Icons:
 
Folder
File
(more types: image, video, ...)
Encrypted File
Back to the Parent Folder

Frequently Asked Questions

Issue: My file(s) are still visible after encryption. Is the application not working, or am I doing something wrong?

P.F.E. works like an archiver, creating a new .enc file after encryption. The original file(s) can be deleted or wiped after the encryption process is completed. This can be done manually or set to be done automatically by navigating to: Settings → Wipe Source After Encryption



Issue: I forgot my password. Can you help me?

No, there is no backdoor. It's the purpose of the application. All data are encrypted (mathematically altered) using the password. Without the password you can't reverse the process and "reconstruct" original data. We can't help you. Nobody can. The correct password is the only way.



Issue: Why can't I use other application(s) that work with the same ciphers? For example AES to decrypt texts?

It isn't only about an encryption algorithm, there are many other pieces: encryption mode (CBC, CFB, PCBC, OFB, CRT, CWC, EAX, ...), password processing (KDF - Key Derivation Function), compression etc... Detailed format specifications can be found here.



Issue: Why doesn't the application use fingerprints to access encrypted files?

All data is fully encrypted (mathematically altered), and exact encryption key matching is required to perform decryption. Without a 100% correct key, the process can't be reversed to "reconstruct" the original data. Fingerprints are typically used for authentication - the originals are stored and compared during the authentication process, but the data is only hidden, not encrypted. Reliable encryption using fingerprints, including generating a secure encryption key from them, has not been accomplished to date - there have been only a few unreliable experiments. Importantly, fingerprints are not secret and cannot be changed. If someone obtains a copy of your fingerprints (which is quite easy to do, as you leave your 'password' on everything you touch), all of your data, past and present, would be accessible to them. P.F.E. will NEVER use biometric data, either directly or indirectly, for ENCRYPTION purposes.



Issue: I can't decrypt my data; the application says "Invalid password or corrupted data." I'm 100% sure my password is correct. What should I do?

A) Very high probability: Your password is really incorrect. When setting or entering your password, try to avoid typing errors and remember the correct password for the particular piece of data. It's surprisingly easy to make a mistake when typing on a software keyboard. If you're already stuck in an "incorrect password" scenario, check for missing, swapped, or doubled letters, or letters replaced by or added from neighboring keys. Consider all combinations of keys around your intended key—this process can be tedious, but it's possible to correct a single character error. Many "100% sure users" have also recalled the correct password eventually (if they tried of course — those who think they never make mistakes prefer to sacrifice their data to this believe).

B) Very low probability: A hardware failure could be at fault. Our application verifies the broader header of .enc files after encryption to avoid calculation or memory errors. Most hardware errors, which regrettably are unavoidable, result from storage failures. On the internal storage of iOS devices, this scenario is highly unlikely. However, SD card readers and other peripherals connected via the Lightning or USB port may be more susceptible to errors. The reliability of these devices can vary significantly, but in general, external storage can be considered quite unreliable.



Issue: What is the purpose of the activation code provided by the PRO version? Which applications can it be used with?

You can use the provided code to activate the desktop versions of S.S.E. File Encryptor, Paranoia Text Encryption, and Paranoia File & Text Encryption. The license is valid for a lifetime. It allows you to activate an unlimited number of desktop versions (learn more) across all the devices you own.

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