Sanitization Rust Crate v1.0.0-rc.4

[eldryoth]

sanitization v1.0.0-rc.4

Security hardening release candidate.

Changed

• Hardened equal-length comparison loops against optimizer-introduced short-circuiting.
• Added SecretBytes::expose_secret_volatile behind unsafe-wipe.
• Switched SecretVec and SecretString growth to exponential capacity growth.
• Improved documentation around abort behavior, best-effort clearing limits, LTO, and unsafe string wiping.

Verification

• Full local check script passed.
• Tag is signed: v1.0.0-rc.4.

---

This discussion was created from the release Sanitization Rust Crate v1.0.0-rc.4.