Easily encrypt and decrypt files from the command line or from scripts.
You must have a Go compiler installed in your system to compile this program. You can get a copy at https://golang.org/dl
You must also have Go's PBKDF2 package installed. You can install that package with the following command:
$ go get golang.org/x/crypto/pbkdf2
You can then compile crypt from the root directory of this project with the following command:
$ go build
You may optionally install the man page and binary to your system by running install script with root privileges:
# sh install.sh
You can easily encrypt or decrypt files by calling crypt and supplying a file to encrypt or decrypt, and a password to encrypt or decrypt it with.
To encrypt the file named secrets.txt, with the password
supersecretpassword, issue the following command:
$ crypt -f secrets.txt -p "supersecretpassword"
The file secrets.txt will be encrypted, producing the file
secrets.txt.gobbledygook.
To decrypt the output file, run crypt with the -d file using the same
password.
$ crypt -f secrets.txt.gobbledygook -p "supersecretpassword" -d
The cleartext file will be produced as the file secrets.txt.gobbledygook.txt
The original file can be deleted upon successful encryption or decryption by
specifying the --no-preserve flag.
For detailed usage information, see the man page:
$ man crypt