Expand description
The CaRT file format is used to store/transfer malware and it’s associated metadata.
It neuters the malware so it cannot be executed and encrypts it so anti-virus software cannot flag the CaRT file as malware. This encryption is intentionally weak and only intended for obfuscation.
File content is also compressed.
use cart_container::{pack_stream, JsonMap, unpack_stream, digesters::default_digesters};
use tempfile;
// A file to encode
let input_file = "./Cargo.toml";
let metadata_json: JsonMap = [("hello".to_owned(), serde_json::json!("world"))].into_iter().collect();
let carted_file = tempfile::NamedTempFile::new().unwrap();
let output_file = tempfile::NamedTempFile::new().unwrap();
// Encode file
pack_stream(
std::fs::File::open(input_file).unwrap(),
carted_file.as_file(),
Some(metadata_json.clone()),
None,
default_digesters(),
None
).unwrap();
// Decode file
let (header, footer) = unpack_stream(
carted_file.reopen().unwrap(),
output_file.as_file(),
None
).unwrap();
let original_content = std::fs::read(input_file).unwrap();
// the content should be preserved
assert_eq!(std::fs::read(output_file.path()).unwrap(), original_content);
// the header should be exactly the same
assert_eq!(header.unwrap(), metadata_json);
// the footer should contain all the digests. we used the default set which includes length
assert_eq!(footer.unwrap().get("length"), Some(&serde_json::Value::from(original_content.len().to_string())));
Re-exports§
pub use cart::pack_stream;pub use cart::unpack_stream;pub use cart::JsonMap;pub use digesters::default_digesters;