[ 原始碼： rust-base64ct ]
套件：librust-base64ct-dev（1.6.0-1 以及其他的）
Pure Rust implementation of Base64 (RFC 4648) which avoids any usages of data-dependent branches/LUTs and thereby provides portable "best effort" constant-time operation and embedded-friendly no_std support - Rust source code
Source code for Debianized Rust crate "base64ct"