stable release 1.0

ffi
Avril 4 years ago
parent 4b4d752491
commit 09f361f8a0
Signed by: flanchan
GPG Key ID: 284488987C31F630

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[package] [package]
name = "chacha20stream" name = "chacha20stream"
version = "0.1.0" version = "1.0.0"
keywords = ["chacha20_poly1305", "stream", "wrapper", "encryption", "decryption"]
description = "A writable wrapper stream for encryption and decryption with the stream cipher chacha20_poly1305"
homepage = "https://git.flanchan.moe/flanchan/chacha20stream"
repository = "https://github.com/notflan/chacha20stream"
authors = ["Avril <flanchan@cumallover.me>"] authors = ["Avril <flanchan@cumallover.me>"]
edition = "2018" edition = "2018"
license = "MIT" license = "MIT"

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# chacha20_poly1305 stream wrapper
Contains a writable stream that wraps another, applying the chacha20_poly1305 cipher to the input before writing for either encryption or decryption.
## Usage
Encrypt and decrypt message with an in-memory buffer.
```rust
// Generate random key and IV for the operations.
let (key, iv) = chacha20stream::keygen();
let input = "Hello world!";
// Encryption into a new `Vec<u8>`.
let mut sink = Sink::encrypt(Vec::new(), key, iv).expect("Failed to create encryptor");
sink.write_all(input.as_bytes()).unwrap();
sink.flush().unwrap(); // `flush` also clears the in-memory buffer if there is left over data in it.
let output_encrypted = sink.into_inner();
// Decryption into a new `Vec<u8>`
let mut sink = Sink::decrypt(Vec::new(), key, iv).expect("Failed to create decryptor");
sink.write_all(&output_encrypted[..]).unwrap();
sink.flush().unwrap();
let output_decrypted = sink.into_inner();
assert_eq!(&output_decrypted[..], input.as_bytes());
```
# Features
* **smallvec** - Use `smallvec` crate to store the in-memory buffer on the stack if it's smalle enough (*default*)
* **async** - Enable `AsyncSink` with Tokio *0.2* `AsyncWrite`. The API is the same as for the regular `Sink`.
* **explicit_clear** - Explicitly clear in-memory buffer after operations.
# License
MIT
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