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**** WARNING: the enc parameter encrypts FILE and overwrites the unencrypted file with the crypted content **** Usage : /path/to/crypto.sh dec-write|dec-disp|enc -f|--file /path/to/FILE [-d|--digest digest_to_use] [-c|--cipher cipher_to_use] [-p|--pass password] Order of arguments is not important! enc : encrypts a file dec-disp : decrypts a file to a temp file, display its unencrypted content and deletes the temp file do NOT use this action on binary files! Makes only sense with text files dec-write : decrypts a file and copy the unencrypted file back to its origin in the filesystem use only this decryption action when handling binary files -f|--file : file to perform ACTION on -c|--cipher : cipher to use for ACTION. See <openssl ciphers> command for ciphers supported on your system blowfish is default if not specified as CIPHER argument -d|--digest : digest to use for hashing the password and creating/verifying a checksum of the of the unencrypted content currently md md5 sha1 sha256 sha224 sha512 md4 are supported sha1 is default if not specified as DIGEST argument -p|--pass : password to use for en/de-cryption. If not specified it will be asked by openssl -s|--show : lists supported encryption types --force : upon decryption the filecontent is verified with a hash if there are discrepancies between the saved and the actual hash crypto.sh exits with exit code 1 and the temporary files will be deleted. use this parameter to enforce decryption even if hashes are NOT matching -v|--version: shows version information -h|--help : shows this help