EncryptFile
EncryptFile["password",file]
generates an encrypted version of a file, using the specified password.
EncryptFile["password",source,target]
generates an encrypted version of source, putting the result in target.
EncryptFile[keyspec,source,…]
encrypts using the cryptographic key specification keyspec.
Details and Options
- EncryptFile generates an encrypted file, suitable for decryption with DecryptFile.
- EncryptFile works with both files and cloud objects.
- EncryptFile[key,file] returns the name of the encrypted version of file.
- EncryptFile[key,CloudObject[…]] returns a new anonymous cloud object containing the encrypted version of the contents of the original cloud object.
- EncryptFile[key,File[…]] is also supported.
- The cryptographic key specification keyspec for EncryptFile[keyspec,…] has the same form as for Encrypt.
- EncryptFile has the following options:
-
Permissions Automatic permissions to set for created cloud objects OverwriteTarget False whether to overwrite an existing file with an automatically named new file Method Automatic details of encryption method - EncryptFile uses the same Method option specifications as Encrypt.
- The setting for Permissions affects only cloud objects newly created by EncryptFile[key,CloudObject[…]], not cloud objects explicitly specified as targets.
- With Permissions->Automatic, any permissions set will be given by $Permissions.
- The setting for OverwriteTarget affects only files to be newly created by EncryptFile[key,file] whose names would collide with existing files.
Examples
open allclose allBasic Examples (4)
Encrypt the file using a password:
Delete the files used in this example:
Encrypt a file containing an image, putting the result in a new file:
Decrypt the encrypted file, again putting the result in a new file:
Delete the files used in this example:
Encrypt the cloud object, getting back another cloud object:
Decrypt the encrypted cloud object, getting back yet another cloud object:
Get the contents of the decrypted cloud object:
Create an archive file from a directory:
Decrypt the encrypted archive:
Extract the archive into the current directory:
Delete the extracted directory and intermediate files used in this example:
Scope (2)
Options (2)
Permissions (1)
OverwriteTarget (1)
Write a string to the file tmp.txt:
Encrypt the file, getting back the tmp.txt.mx:
This attempts to write over tmp.txt.mx:
With OverwriteTarget->True, EncryptFile overwrites tmp.txt.mx:
Properties & Relations (2)
Write a string to the file tmp.txt:
Encrypt the file tmp.txt using a password:
Importing the file written by EncryptFile gives an EncryptedObject:
Write a string to the file tmp.txt:
Text
Wolfram Research (2017), EncryptFile, Wolfram Language function, https://reference.wolfram.com/language/ref/EncryptFile.html (updated 2020).
CMS
Wolfram Language. 2017. "EncryptFile." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2020. https://reference.wolfram.com/language/ref/EncryptFile.html.
APA
Wolfram Language. (2017). EncryptFile. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/EncryptFile.html