rust_sodium 0.10.2

Fast cryptographic library for Rust (bindings to libsodium)
Documentation 
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//! `xchacha20`. The same construction as `xsalsa20` but using
//! `chacha20` instead of `salsa20` as the underlying stream cipher.
//! This cipher is conjectured to meet the standard notion of
//! unpredictability.

use crate::ffi::{
    crypto_stream_xchacha20, crypto_stream_xchacha20_KEYBYTES, crypto_stream_xchacha20_NONCEBYTES,
    crypto_stream_xchacha20_xor, crypto_stream_xchacha20_xor_ic,
};

stream_module!(
    crypto_stream_xchacha20,
    crypto_stream_xchacha20_xor,
    crypto_stream_xchacha20_xor_ic,
    crypto_stream_xchacha20_KEYBYTES as usize,
    crypto_stream_xchacha20_NONCEBYTES as usize
);