Crate security 

security-rs

Safe Rust bindings for Apple’s Security framework on macOS.

Status: v0.2.3 closes every remaining non-exempt gap in the audited macOS Security.framework surface, including advanced Authorization, CMS, Certificate, Identity, Code Signing, Requirement, Task, and Trust helpers.

Highlights

• Swift bridge over Security.framework with retained opaque handles and ergonomic Rust wrappers.
• 100% coverage of the audited non-exempt macOS Security.framework function surface documented in COVERAGE_AUDIT.md.
• Raw C FFI preserved behind the raw-ffi Cargo feature, now exhaustively covering the non-deprecated macOS SecAccessControl / SecItem / SecKey / SecPolicy headers.
• Safe modules for all primary logical areas:
  • keychain
  • identity
  • certificate
  • key
  • policy
  • trust
  • authorization
  • code
  • random_bytes
  • transform
  • secure_transport
  • cms
  • key_derivation
  • key_agreement
• 15 numbered headless examples plus smoke tests across every area.

Quick start

use security::prelude::*;

fn main() -> Result<(), Box<dyn std::error::Error>> {
    let certificate = Certificate::from_der(&std::fs::read("tests/fixtures/test-cert.der")?)?;
    let policy = Policy::basic_x509()?;
    let mut trust = Trust::new(&certificate, &[policy])?;
    trust.set_anchor_certificates(&[certificate])?;
    trust.set_anchor_certificates_only(true)?;
    trust.evaluate()?;

    let encoded = Transform::encode_base64(b"hello")?;
    assert_eq!(Transform::decode_base64(encoded.as_bytes())?, b"hello");

    let random = SecureRandom::bytes(16)?;
    assert_eq!(random.len(), 16);
    Ok(())
}

Area overview

• Keychain: generic-password CRUD, service account listing, access-control creation, and SecAccessControl type IDs.
• Identity: PKCS#12 import, certificate access, identity creation, preference lookup/updates, system-identity management, and private-key attribute inspection.
• Certificate: DER/PEM loading, Security item import/export, descriptions, values, preferences, summaries, names, emails, serials, validity dates, and public keys.
• Key: raw/private-key import, modern signing, RSA encryption/decryption, external representations, block-size inspection, and SecKey type IDs.
• Policy / Trust: basic X.509, SSL, revocation, generic property builders, policy type IDs, custom anchors, verify dates, exceptions, OCSP / SCT inputs, async evaluation, derived keys, and evaluated trust results.
• Authorization: authorization creation, external-form round trips, info inspection, and synchronous / async rights acquisition.
• Code: current-process code objects, host / guest lookup, requirements, static-code creation and validation, resource validation, memory mapping, and task entitlement inspection.
• RandomBytes: SecRandomCopyBytes wrappers.
• Transform: base64 encode/decode using deprecated but still functional SecTransform APIs.
• SecureTransport: minimal context creation, protocol bounds, and state inspection.
• CMS: certificate-bag helpers plus low-level encoder / decoder access for content, signers, recipients, timestamps, detached payloads, and chain configuration.
• KeyDerivation: PBKDF2-style symmetric-key derivation through SecKeyDeriveFromPassword.
• KeyAgreement: ephemeral P-256 key generation and ECDH shared-secret derivation.

Examples

Run every numbered example:

for ex in examples/*.rs; do cargo run --example "$(basename "$ex" .rs)"; done

Key examples:

• 01_keychain_password
• 05_trust_evaluate
• 07_code_signing_info
• 11_cms_cert_bag
• 13_key_agreement_shared_secret
• 14_key_import_sign_verify
• 15_key_encrypt_export

Raw FFI

Enable the legacy raw C declarations when you need direct Security.framework symbols. The raw-ffi feature now exposes the non-deprecated macOS-available SecAccessControl.h, SecItem.h, SecKey.h, and SecPolicy.h surfaces end-to-end:

cargo test --features raw-ffi

The default API path stays on the Swift bridge so Rust code does not call the C-only framework surface directly.

Coverage notes

See COVERAGE.md for the header audit and per-area implementation / partial / skipped status.

License

Licensed under either of Apache-2.0 or MIT at your option.

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API documentation

Safe Rust bindings for Apple’s Security.framework on macOS.

Re-exports

pub use authorization::Authorization;

pub use authorization::AuthorizationOptions;

pub use certificate::Certificate;

pub use certificate::PublicKey;

pub use cms::Cms;

pub use cms::CmsCertificateChainMode;

pub use cms::CmsDecoder;

pub use cms::CmsDigestAlgorithm;

pub use cms::CmsEncoder;

pub use cms::CmsSignedAttributes;

pub use code::Code;

pub use code::CodeSigningFlags;

pub use code::Requirement;

pub use code::SigningInformation;

pub use code::SigningValue;

pub use code::StaticCode;

pub use code::Task;

pub use error::OsStatus;

pub use error::Result;

pub use error::SecurityError;

pub use error::StatusError;

pub use identity::Identity;

pub use key::EncryptionAlgorithm;

pub use key::ExternalFormat;

pub use key::ExternalItemType;

pub use key::KeyType;

pub use key::PrivateKey;

pub use key::SignatureAlgorithm;

pub use key_agreement::AgreementPrivateKey;

pub use key_agreement::AgreementPublicKey;

pub use key_derivation::DerivedKey;

pub use key_derivation::KeyDerivation;

pub use keychain::AccessControl;

pub use keychain::AccessControlFlags;

pub use keychain::AccessControlProtection;

pub use keychain::Keychain;

pub use keychain::KeychainEntry;

pub use policy::Policy;

pub use policy::PolicyIdentifier;

pub use policy::PolicyName;

pub use policy::PolicyProperties;

pub use policy::RevocationFlags;

pub use random_bytes::SecureRandom;

pub use secure_transport::ProtocolVersion;

pub use secure_transport::SecureTransportContext;

pub use secure_transport::SecureTransportState;

pub use transform::Transform;

pub use trust::Trust;

pub use trust::TrustOptions;

pub use trust::TrustResultType;

Modules

authorization

certificate

cms

code

code_signing

error

Errors returned by the security-rs bindings.

ffiraw-ffi

Raw FFI declarations for the subset of Security.framework used by this crate.

identity

key

key_agreement

key_derivation

keychain

policy

prelude

Common imports for users of this crate.

random

random_bytes

secure_transport

transform

trust