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* build: Update copyright to 2026Dimitri Staessens6 days1-1/+1
| | | | | Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Add SLH-DSA tests and per-algorithm PQC gatingDimitri Staessens6 days1-1/+1
| | | | | | | | | | | | | | | | | This replaces the single HAVE_OPENSSL_PQC/DISABLE_PQC with per-algorithm CMake variables (ML-KEM, ML-DSA, SLH-DSA), gated by the OpenSSL versions: ML-KEM and ML-DSA require >= 3.4, SLH-DSA >= 3.5. SLH-DSA was already working, but now added explicit authentication tests for it with a full certificate chain (root CA, intermediate CA, server) to show full support. Rename PQC test files and cert headers to use algorithm-specific names (ml_kem, ml_dsa, slh_dsa) and move cert headers to include/test/certs/. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Fix authentication testDimitri Staessens2026-01-261-98/+0
| | | | | | | | The hardcoded certificates were re-introduced in ea52d5275, breaking the build. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Fix getting text certificatesDimitri Staessens2026-01-231-1/+100
| | | | | | | | | | | | | | | The openssl_crt_str function was using BIO_get_mem_data() but this is not guaranteed to be NULL-terminated, causing buffer overruns. This was the root cause of ASan tests with certificates running for minutes and eventually getting killed on the CI/CD pipeline: Start 1: lib/auth_test 1/26 Test #1: lib/auth_test ......................***Skipped 312.75 sec Start 16: irmd/oap/oap_test 16/26 Test #16: irmd/oap/oap_test ..................***Skipped 345.87 sec Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Add post-quantum cryptography supportDimitri Staessens2026-01-191-127/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds initial support for runtime-configurable encryption and post-quantum Key Encapsulation Mechanisms (KEMs) and authentication (ML-DSA). Supported key exchange algorithms: ECDH: prime256v1, secp384r1, secp521r1, X25519, X448 Finite Field DH: ffdhe2048, ffdhe3072, ffdhe4096 ML-KEM (FIPS 203): ML-KEM-512, ML-KEM-768, ML-KEM-1024 Hybrid KEMs: X25519MLKEM768, X448MLKEM1024 Supported ciphers: AEAD: aes-128-gcm, aes-192-gcm, aes-256-gcm, chacha20-poly1305 CTR: aes-128-ctr, aes-192-ctr, aes-256-ctr Supported HKDFs: sha256, sha384, sha512, sha3-256, sha3-384, sha3-512, blake2b512, blake2s256 Supported Digests for DSA: sha256, sha384, sha512, sha3-256, sha3-384, sha3-512, blake2b512, blake2s256 PQC support requires OpenSSL 3.4.0+ and is detected automatically via CMake. A DISABLE_PQC option allows building without PQC even when available. KEMs differ from traditional DH in that they require asymmetric roles: one party encapsulates to the other's public key. This creates a coordination problem during simultaneous reconnection attempts. The kem_mode configuration parameter resolves this by pre-assigning roles: kem_mode=server # Server encapsulates (1-RTT, full forward secrecy) kem_mode=client # Client encapsulates (0-RTT, cached server key) The enc.conf file format supports: kex=<algorithm> # Key exchange algorithm cipher=<algorithm> # Symmetric cipher kdf=<KDF> # Key derivation function digest=<digest> # Digest for DSA kem_mode=<mode> # Server (default) or client none # Disable encryption The OAP protocol is extended to negotiate algorithms and exchange KEX data. All KEX messages are signed using existing authentication infrastructure for integrity and replay protection. Tests are split into base and _pqc variants to handle conditional PQC compilation (kex_test.c/kex_test_pqc.c, oap_test.c/oap_test_pqc.c). Bumped minimum required OpenSSL version for encryption to 3.0 (required for HKDF API). 1.1.1 is long time EOL. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Fix buffer in auth_test and tpm logDimitri Staessens2025-11-211-1/+2
| | | | | | | | | The string buffer in auth_test was one byte too short. The log line for the thread id in the tpm thread debug output needs type conversion. The build fails because of this on OS X. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* irmd: Add flow authenticationDimitri Staessens2025-08-181-0/+75
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds initial implementation of peer authentication as part of flow allocation. If credentials are not provided, this will be accepted and logged as info that the flow is not authenticated. Certificates and keys are passed as .pem files. The key file should not be encrypted, else the IRMd will open a prompt for the password. The default location for these .pem files is in /etc/ouroboros/security. It is strongly recommended to make this directory only accessible to root. ├── security │ ├── cacert │ │ └── ca.root.o7s.crt.pem │ ├── client │ │ ├── <name> │ │ | ├── crt.pem │ │ | └── key.pem │ │ └── <name> | | ├──... | | │ ├── server │ │ ├── <name> │ │ | ├── crt.pem │ │ | └── key.pem │ │ └── <name> | | ├── ... | | │ └── untrusted │ └── sign.root.o7s.crt.pem Trusted root CA certificates go in the /cacert directory, untrusted certificates for signature verification go in the /untrusted directory. The IRMd will load these certificates at boot. The IRMd will look for certificates in the /client and /server directories. For each name a subdirectory can be added and the credentials in that directory are used to sign the OAP header for flows at flow_alloc() on the client side and flow_accept() on the server side. These defaults can be changed at build time using the following variables (in alphabetical order): OUROBOROS_CA_CRT_DIR /etc/ouroboros/security/cacert OUROBOROS_CLI_CRT_DIR /etc/ouroboros/security/client OUROBOROS_SECURITY_DIR /etc/ouroboros/security OUROBOROS_SRV_CRT_DIR /etc/ouroboros/security/server OUROBOROS_UNTRUSTED_DIR /etc/ouroboros/security/untrusted The directories for the names can also be configured at IRMd boot using the configuraton file and at runtime when a name is created using the "irm name create" CLI tool. The user needs to have permissions to access the keyfile and certificate when specifying the paths with the "irm name create" CLI tool. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
* lib: Fix memory leaks in testsDimitri Staessens2025-08-151-0/+1
| | | | | | Fixes memory leaks in the tests that had escaped detection. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks>
* lib: Fix authentication test for older OpenSSLDimitri Staessens2025-08-111-19/+19
| | | | | | | | Signed the server certificate using SHA3 during last update, which is bugged on older versions of libssl. Using ecdsa-with-SHA256 again. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Fix authentication testDimitri Staessens2025-08-061-70/+67
| | | | | | | | The test had a root certificate that expired today. All test certificates updated, now valid until 2045. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* irmd: Initial Flow Allocation Protocol HeaderDimitri Staessens2025-07-231-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds the initial version for the flow allocation protocol header between IRMd instances. This is a step towards flow authentication. The header supports secure and authenticated flow allocation, supporting certificate-based authentication and ephemeral key exchange for end-to-end encryption. id: 128-bit identifier for the entity. timestamp: 64-bit timestamp (replay protection). certificate: Certificate for authentication. public key: ECDHE public key for key exchange. data: Application data. signature: Signature for integrity/authenticity. Authentication and encryption require OpenSSL to be installed. The IRMd compares the allocation request delay with the MPL of the Layer over which the flow allocation was sent. MPL is now reported by the Layer in ms instead of seconds. Time functions revised for consistency and adds some tests. The TPM can now print thread running times in Debug builds (TPM_DEBUG_REPORT_INTERVAL) and abort processes with hung threads (TPM_DEBUG_ABORT_TIMEOUT). Long running threads waiting for input should call tpm_wait_work() to avoid trigger a process abort. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Use ecdsa_with_SHA-256 signatures in auth_testDimitri Staessens2025-07-041-51/+50
| | | | | | | | Older versions of openssl don't seem to like certificates signed with ecdsa_with_SHA3-256. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
* lib: Add authentication functionsDimitri Staessens2025-07-041-0/+571
Adds functions needed for authentication using X509 certificates, implemented using OpenSSL. Refactors some library internals, and adds some unit tests for them. Signed-off-by: Dimitri Staessens <dimitri@ouroboros.rocks> Signed-off-by: Sander Vrijders <sander@ouroboros.rocks>
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