This commit adds a cryptographic audit report in AUDIT-CRYPTO.md.
The audit was conducted to review the cryptographic implementations in the codebase. The findings indicate that there are no custom or third-party cryptographic implementations present. The use of `math/rand` is confined to non-security-critical test code, and references to `TLSA` in DNS-related files are purely descriptive.
Co-authored-by: Snider <631881+Snider@users.noreply.github.com>
