zeroize 0.1.2

(Alpha quality preview) Securely zero memory while avoiding compiler optimizations: unified 'secure_zero_memory()' wrapper for secure intrinsic functions for zeroing memory, using FFI to invoke OS intrinsics on stable (with support for Linux, Windows, OS X/iOS, FreeBSD, OpenBSD, NetBSD, DragonflyBSD), or the unstable 'volatile_set_memory()` intrinsic on nightly. No insecure fallbacks, no dependencies, no std, no functionality besides securely zeroing memory.
Documentation 
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//! stable: invoke OS-specific secure memory zeroing intrinsics

// Linux, FreeBSD, OpenBSD, DragonflyBSD: use `explicit_bzero()`
#[cfg(
    any(
        target_os = "dragonfly",
        target_os = "freebsd",
        target_os = "linux",
        target_os = "openbsd",
        target_os = "windows", // via `explicit_bzero_shim.c`
    )
)]
mod explicit_bzero;
#[cfg(
    any(
        target_os = "dragonfly",
        target_os = "freebsd",
        target_os = "linux",
        target_os = "openbsd",
        target_os = "windows"
    )
)]
pub use self::explicit_bzero::secure_zero_memory;

// iOS, Mac OS X, Solaris: use `memset_s()`
#[cfg(
    any(
        target_os = "ios",
        target_os = "macos",
        target_os = "solaris"
    )
)]
mod memset_s;
#[cfg(
    any(
        target_os = "ios",
        target_os = "macos",
        target_os = "solaris"
    )
)]
pub use self::memset_s::secure_zero_memory;

// NetBSD: use `explicit_memset()`
#[cfg(target_os = "netbsd")]
mod explicit_memset;
#[cfg(target_os = "netbsd")]
pub use self::explicit_memset::secure_zero_memory;

#[cfg(
    not(
        any(
            target_os = "dragonfly",
            target_os = "freebsd",
            target_os = "ios",
            target_os = "linux",
            target_os = "macos",
            target_os = "netbsd",
            target_os = "openbsd",
            target_os = "solaris",
            target_os = "windows"
        )
    )
)]
compile_error!("no secure_zero_memory() implementation available for this platform");