fastC

fastc-core · SHA-256, HMAC, constant-time compare

fastc-core-crypto-primitives

fastc-core-crypto-primitives ships SHA-256, HMAC-SHA-256, constant-time comparison, and secure random bytes. It is primitives, not protocols — for TLS you use the http package, which links OpenSSL.

Repository API docs All packages
capability CapRand for random_bytes

What it ships (v0.1.0)

  • SHA-256 and HMAC-SHA-256
  • Constant-time comparison
  • Secure random bytes (CapRand)

When to use it

Hashing, message authentication, and token comparison — not full protocols.

Example

use crypto::sha256;

fn digest(data: Bytes) -> Bytes {
  return sha256(data);
}
fastc-core-crypto-primitives — minimal usage fastc-core-crypto-primitives v0.1.0

Roadmap

SHA-512 and Ed25519 signatures land in v0.2.

Provenance

Like every fastc-core package, fastc-core-crypto-primitives ships with content-hashed, cosign-keyless-signed releases and SLSA L3 provenance. It is vendored, not pulled from a central registry — there is no account to compromise.

See also