cloud-sdk-sanitization

Optional provider-neutral secret-handling boundary for the main cloud-sdk workspace and cloud-sdk crate.

This crate provides reusable caller-owned buffer sanitization outside the default no_std SDK and provider crates. It delegates volatile clearing to the independently reviewed sanitization crate with default features disabled.

Most users should start with:

[dependencies]
cloud-sdk = "0.17.0"
cloud-sdk-sanitization = "0.13.3"

Example

use cloud_sdk_sanitization::SecretBuffer;

let mut output = [0_u8; 128];
{
    let mut guarded = SecretBuffer::new(&mut output);
    guarded.as_mut_slice()[..6].copy_from_slice(b"secret");
    assert_eq!(&guarded.as_slice()[..6], b"secret");
}
assert_eq!(output, [0_u8; 128]);

Security Notes

SecretBuffer volatile-clears its entire borrowed slice on drop, including after early returns and unwind where unwind exists. sanitize_bytes provides the same reviewed primitive for explicit cleanup.

These helpers do not clear immutable source strings or copies made by transports, operating systems, crash handlers, swap, remote services, or other processes. They also do not replace review of token ownership, logging, environment variables, paging, compiler behavior, or process boundaries.