If you're just getting started, check out the tutorial instead.​
Usage: kryptor [options] <file>
file specify a file/directory path
-e|--encrypt encrypt files/directories
-d|--decrypt decrypt files/directories
-p|--passphrase specify a passphrase (empty for interactive entry)
-k|--key specify or randomly generate a symmetric key or keyfile
-x|--private specify your private key (unused or empty for default key)
-y|--public specify a public key
-n|--names encrypt file/directory names
-o|--overwrite overwrite files
-g|--generate generate a new key pair
-r|--recover recover your public key from your private key
-m|--modify change your private key passphrase
-s|--sign create a signature
-c|--comment add a comment to a signature or new key pair
-l|--prehash sign large files by prehashing
-v|--verify verify a signature
-t|--signature specify a signature file (unused for default name)
--version view the program version
-h|--help show help information
--encrypt [file]
--encrypt -p [file]
--encrypt [-y recipient's public key] [file]
--decrypt [-y sender's public key] [file]
--sign [-c comment] [file]
--verify [-y public key] [file]

Specifying files

When referencing file names/paths that contain spaces, you must surround them with "speech marks":
$ kryptor -e "GitHub Logo.png"
$ kryptor -e "C:\Users\samuel-lucas6\Downloads\GitHub Logo.png"
Files in the same directory as the kryptor executable can be specified using a file name:
$ kryptor -e file.txt
However, files that aren't in the same directory must be specified using a file path:
$ kryptor -e C:\Users\samuel-lucas6\Documents\file.txt
Multiple files and/or directories can be specified at once:
$ kryptor -e file1.txt file2.jpg file3.mp4 Photos Videos

Specifying your private key

You can perform encryption, decryption, and signing with your default private key as follows:
$ kryptor -e file.txt
$ kryptor -d file.txt.bin
$ kryptor -s file.txt
This is the recommended approach, but it means your private keys must be kept in the default folder, which varies depending on your operating system:
  • Windows: %USERPROFILE%/.kryptor
  • Linux: /home/.kryptor
  • macOS: /Users/USERNAME/.kryptor
To specify a private key for -r|--recover, -m|--modify, or a private key not stored in the default folder, you must use the -x|--private option followed by :[file] like so:
$ kryptor -r -x:"C:\Users\samuel-lucas6\Documents\encryption.private"