feat(M1): TCP/TLS control plane -- auth, channels, ephemeral text
Implements the full M1 milestone. Two clients authenticate over TLS 1.3 (guest + Argon2id password) and exchange channel + private text messages through a real server. All five ctest --preset m1-dev tests pass in ~1 s. Key components added: - vcpkg baseline + m1-dev preset (protobuf/mbedTLS/libsodium/asio/sqlite3) - FrameCodec feed+emit, encode/decode_envelope, protobuf codegen - TcpServerConn with blocking TLS handshake thread + tls_read_loop - TlsContext (mbedTLS 1.3, ECDSA-P256 self-signed cert, TOFU on client) - WorkerPool (3 threads, used for Argon2id) - Database: SQLite + libsodium Argon2id, account lifecycle, bootstrap admin - ServerIdentityManager: Ed25519 key + cert generate/persist/fingerprint - ConnSession state machine: WaitingHello -> WaitingAuth -> Authenticated - SessionRegistry: channel tree, user map, text routing, broadcast - vc_client full M1 C ABI: connect/TLS/handshake/auth/text/disconnect - voicecat-admin CLI: account add/reset/del/list - test_m1_integration: M1 exit criterion, verified green Bug fixed: double-framing in ConnSession::send_envelope -- encode_envelope was adding the [4-byte len] prefix, then TcpServerConn::send_frame added a second one, causing the client to parse [len][proto] as protobuf (silent failure). Fixed by serializing raw protobuf bytes in send_envelope and letting send_frame apply the single length prefix. Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
This commit is contained in:
@@ -1,8 +1,288 @@
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#include "crypto/crypto.h"
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#ifdef VOICECAT_HAS_NET
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#include <cstring>
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#include <fstream>
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#include <sstream>
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#include <stdexcept>
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#include <mbedtls/error.h>
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#include <mbedtls/sha256.h>
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#include <mbedtls/ssl.h>
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#include <mbedtls/x509_crt.h>
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namespace voicecat::crypto {
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// M0 stub. Brought up in M1 (TLS 1.3 via mbedTLS) and M2 (media AEAD via libsodium).
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// See docs/security.md §1–2.
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// ── Helpers ───────────────────────────────────────────────────────────────────
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static void throw_if(int rc, const char* msg) {
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if (rc != 0) {
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char buf[256];
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mbedtls_strerror(rc, buf, sizeof(buf));
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throw std::runtime_error(std::string(msg) + ": " + buf);
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}
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}
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static std::string compute_hex_fingerprint(const uint8_t* data, size_t len) {
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uint8_t hash[32];
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mbedtls_sha256(data, len, hash, 0);
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std::string s;
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s.reserve(64);
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const char* hex = "0123456789abcdef";
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for (auto b : hash) {
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s += hex[b >> 4];
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s += hex[b & 0xf];
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}
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return s;
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}
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// ── ServerIdentity ────────────────────────────────────────────────────────────
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ServerIdentity ServerIdentity::generate() {
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ServerIdentity id;
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crypto_sign_ed25519_keypair(id.pk.data(), id.sk.data());
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// Fingerprint = SHA-256 of the public key
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mbedtls_sha256(id.pk.data(), id.pk.size(), id.fingerprint.data(), 0);
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return id;
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}
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ServerIdentity ServerIdentity::load(const std::filesystem::path& path) {
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std::ifstream f(path, std::ios::binary);
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if (!f) throw std::runtime_error("Cannot open identity file: " + path.string());
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ServerIdentity id;
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f.read(reinterpret_cast<char*>(id.pk.data()), id.pk.size());
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f.read(reinterpret_cast<char*>(id.sk.data()), id.sk.size());
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if (!f) throw std::runtime_error("Identity file truncated: " + path.string());
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mbedtls_sha256(id.pk.data(), id.pk.size(), id.fingerprint.data(), 0);
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return id;
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}
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void ServerIdentity::save(const std::filesystem::path& path) const {
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std::ofstream f(path, std::ios::binary | std::ios::trunc);
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if (!f) throw std::runtime_error("Cannot write identity file: " + path.string());
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f.write(reinterpret_cast<const char*>(pk.data()), pk.size());
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f.write(reinterpret_cast<const char*>(sk.data()), sk.size());
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}
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std::string ServerIdentity::fingerprint_hex() const {
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std::string s;
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s.reserve(96);
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const char* hex = "0123456789ABCDEF";
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for (size_t i = 0; i < fingerprint.size(); ++i) {
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if (i > 0) s += ':';
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s += hex[fingerprint[i] >> 4];
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s += hex[fingerprint[i] & 0xf];
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}
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return s;
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}
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// ── ServerCert ────────────────────────────────────────────────────────────────
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ServerCert ServerCert::generate(const std::string& server_name) {
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mbedtls_entropy_context entropy;
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mbedtls_ctr_drbg_context ctr_drbg;
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mbedtls_pk_context key;
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mbedtls_x509write_cert cert;
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mbedtls_entropy_init(&entropy);
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mbedtls_ctr_drbg_init(&ctr_drbg);
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mbedtls_pk_init(&key);
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mbedtls_x509write_crt_init(&cert);
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try {
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const char* pers = "voicecat_cert_gen";
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throw_if(mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy,
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reinterpret_cast<const unsigned char*>(pers),
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strlen(pers)),
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"ctr_drbg_seed");
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// Generate ECDSA-P256 key
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throw_if(mbedtls_pk_setup(&key, mbedtls_pk_info_from_type(MBEDTLS_PK_ECKEY)),
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"pk_setup");
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throw_if(mbedtls_ecp_gen_key(MBEDTLS_ECP_DP_SECP256R1, mbedtls_pk_ec(key),
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mbedtls_ctr_drbg_random, &ctr_drbg),
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"ecp_gen_key");
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// Build self-signed cert
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mbedtls_x509write_crt_set_version(&cert, MBEDTLS_X509_CRT_VERSION_3);
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mbedtls_x509write_crt_set_md_alg(&cert, MBEDTLS_MD_SHA256);
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mbedtls_x509write_crt_set_subject_key(&cert, &key);
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mbedtls_x509write_crt_set_issuer_key(&cert, &key);
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std::string dn = "CN=" + (server_name.empty() ? std::string("voicecat") : server_name);
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throw_if(mbedtls_x509write_crt_set_subject_name(&cert, dn.c_str()), "set_subject");
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throw_if(mbedtls_x509write_crt_set_issuer_name(&cert, dn.c_str()), "set_issuer");
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// Serial = 0x01 (1 byte, value 1)
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uint8_t serial_raw[] = {0x01};
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throw_if(mbedtls_x509write_crt_set_serial_raw(&cert, serial_raw, sizeof(serial_raw)),
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"set_serial");
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// Valid for 10 years
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throw_if(mbedtls_x509write_crt_set_validity(&cert, "20240101000000",
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"20340101000000"),
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"set_validity");
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throw_if(mbedtls_x509write_crt_set_basic_constraints(&cert, 0, -1),
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"set_basic_constraints");
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// Write PEM cert
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unsigned char cert_buf[4096] = {};
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throw_if(mbedtls_x509write_crt_pem(&cert, cert_buf, sizeof(cert_buf),
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mbedtls_ctr_drbg_random, &ctr_drbg),
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"write_cert_pem");
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// Write PEM key
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unsigned char key_buf[4096] = {};
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throw_if(mbedtls_pk_write_key_pem(&key, key_buf, sizeof(key_buf)), "write_key_pem");
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ServerCert result;
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result.pem_cert = reinterpret_cast<char*>(cert_buf);
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result.pem_key = reinterpret_cast<char*>(key_buf);
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mbedtls_x509write_crt_free(&cert);
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mbedtls_pk_free(&key);
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mbedtls_ctr_drbg_free(&ctr_drbg);
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mbedtls_entropy_free(&entropy);
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return result;
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} catch (...) {
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mbedtls_x509write_crt_free(&cert);
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mbedtls_pk_free(&key);
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mbedtls_ctr_drbg_free(&ctr_drbg);
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mbedtls_entropy_free(&entropy);
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throw;
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}
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}
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ServerCert ServerCert::load(const std::filesystem::path& cert_path,
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const std::filesystem::path& key_path) {
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auto read_file = [](const std::filesystem::path& p) -> std::string {
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std::ifstream f(p);
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if (!f) throw std::runtime_error("Cannot open: " + p.string());
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return {std::istreambuf_iterator<char>(f), {}};
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};
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ServerCert c;
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c.pem_cert = read_file(cert_path);
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c.pem_key = read_file(key_path);
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return c;
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}
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void ServerCert::save(const std::filesystem::path& cert_path,
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const std::filesystem::path& key_path) const {
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auto write_file = [](const std::filesystem::path& p, const std::string& s) {
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std::ofstream f(p, std::ios::trunc);
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if (!f) throw std::runtime_error("Cannot write: " + p.string());
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f << s;
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};
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write_file(cert_path, pem_cert);
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write_file(key_path, pem_key);
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}
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// ── TlsContext ────────────────────────────────────────────────────────────────
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TlsContext::TlsContext(Role role, const ServerCert* server_cert,
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const std::array<uint8_t, 32>* pinned_fp)
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: role_(role), pinned_fp_(pinned_fp) {
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mbedtls_entropy_init(&entropy_);
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mbedtls_ctr_drbg_init(&ctr_drbg_);
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mbedtls_ssl_init(&ssl_);
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mbedtls_ssl_config_init(&conf_);
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mbedtls_x509_crt_init(&srvcert_);
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mbedtls_pk_init(&pkey_);
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const char* pers = (role == Role::Server) ? "vc_server_tls" : "vc_client_tls";
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throw_if(mbedtls_ctr_drbg_seed(&ctr_drbg_, mbedtls_entropy_func, &entropy_,
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reinterpret_cast<const unsigned char*>(pers),
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strlen(pers)),
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"ctr_drbg_seed");
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int endpoint = (role == Role::Server) ? MBEDTLS_SSL_IS_SERVER : MBEDTLS_SSL_IS_CLIENT;
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throw_if(mbedtls_ssl_config_defaults(&conf_, endpoint, MBEDTLS_SSL_TRANSPORT_STREAM,
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MBEDTLS_SSL_PRESET_DEFAULT),
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"ssl_config_defaults");
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// TLS 1.3 only
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mbedtls_ssl_conf_min_tls_version(&conf_, MBEDTLS_SSL_VERSION_TLS1_3);
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mbedtls_ssl_conf_max_tls_version(&conf_, MBEDTLS_SSL_VERSION_TLS1_3);
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mbedtls_ssl_conf_rng(&conf_, mbedtls_ctr_drbg_random, &ctr_drbg_);
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if (role == Role::Server && server_cert) {
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// Parse server cert + key
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throw_if(mbedtls_x509_crt_parse(
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&srvcert_,
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reinterpret_cast<const unsigned char*>(server_cert->pem_cert.c_str()),
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server_cert->pem_cert.size() + 1),
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"x509_crt_parse");
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throw_if(mbedtls_pk_parse_key(
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&pkey_,
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reinterpret_cast<const unsigned char*>(server_cert->pem_key.c_str()),
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server_cert->pem_key.size() + 1,
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nullptr, 0, mbedtls_ctr_drbg_random, &ctr_drbg_),
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"pk_parse_key");
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throw_if(mbedtls_ssl_conf_own_cert(&conf_, &srvcert_, &pkey_), "conf_own_cert");
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}
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if (role == Role::Client) {
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// Skip CA chain verification — we use TOFU via the server identity fingerprint.
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mbedtls_ssl_conf_authmode(&conf_, MBEDTLS_SSL_VERIFY_NONE);
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}
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throw_if(mbedtls_ssl_setup(&ssl_, &conf_), "ssl_setup");
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}
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TlsContext::~TlsContext() {
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mbedtls_ssl_close_notify(&ssl_);
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mbedtls_pk_free(&pkey_);
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mbedtls_x509_crt_free(&srvcert_);
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mbedtls_ssl_free(&ssl_);
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mbedtls_ssl_config_free(&conf_);
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mbedtls_ctr_drbg_free(&ctr_drbg_);
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mbedtls_entropy_free(&entropy_);
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}
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void TlsContext::set_read_timeout(uint32_t ms) {
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mbedtls_ssl_conf_read_timeout(&conf_, ms);
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}
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bool TlsContext::is_timeout_error(int rc) {
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return rc == MBEDTLS_ERR_SSL_TIMEOUT;
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}
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bool TlsContext::handshake(int socket_fd, std::string& error) {
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net_ctx_.fd = socket_fd;
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// Use the timeout-capable recv callback so set_read_timeout() takes effect.
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mbedtls_ssl_set_bio(&ssl_, &net_ctx_, mbedtls_net_send, mbedtls_net_recv,
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mbedtls_net_recv_timeout);
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int rc;
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while ((rc = mbedtls_ssl_handshake(&ssl_)) != 0) {
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if (rc != MBEDTLS_ERR_SSL_WANT_READ && rc != MBEDTLS_ERR_SSL_WANT_WRITE) {
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char buf[256];
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mbedtls_strerror(rc, buf, sizeof(buf));
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error = buf;
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return false;
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}
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}
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ready_ = true;
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return true;
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}
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int TlsContext::read(uint8_t* buf, size_t len) {
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return mbedtls_ssl_read(&ssl_, buf, len);
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}
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int TlsContext::write(const uint8_t* buf, size_t len) {
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return mbedtls_ssl_write(&ssl_, buf, len);
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}
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bool TlsContext::export_keying_material(const char* label, const uint8_t* ctx, size_t ctx_len,
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uint8_t* out, size_t out_len) {
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return mbedtls_ssl_export_keying_material(
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&ssl_, out, out_len, label, strlen(label),
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ctx, ctx_len, ctx != nullptr) == 0;
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}
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} // namespace voicecat::crypto
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#endif // VOICECAT_HAS_NET
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@@ -4,31 +4,121 @@
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* Design: docs/security.md. Control channel = TLS 1.3. Media = keys exported from the TLS
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* session (RFC 5705 / 8446) + per-frame ChaCha20-Poly1305 with a counter nonce and a
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* sliding-window replay filter. Encryption is MANDATORY — never add a plaintext path.
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*
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* STATUS: M0 stub.
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*/
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#ifndef VOICECAT_CRYPTO_CRYPTO_H
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#define VOICECAT_CRYPTO_CRYPTO_H
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#include <cstddef>
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#include <cstdint>
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#include <string>
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#ifdef VOICECAT_HAS_NET
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#include <array>
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#include <filesystem>
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#include <functional>
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#include <memory>
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// libsodium
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#include <sodium.h>
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// mbedTLS
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#include <mbedtls/ctr_drbg.h>
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#include <mbedtls/entropy.h>
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#include <mbedtls/net_sockets.h>
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#include <mbedtls/pk.h>
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#include <mbedtls/ssl.h>
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#include <mbedtls/x509_crt.h>
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namespace voicecat::crypto {
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// TLS 1.3 endpoint wrapper (mbedTLS). Provides the keying-material exporter that seeds
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// MediaCrypto, so the UDP path inherits the authenticated control session's trust.
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class TlsContext {
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public:
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// TODO(M1): client/server handshake; read/write; export_keying_material(label,...).
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// ── Server identity ────────────────────────────────────────────────────────────
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// Long-lived Ed25519 key identifying this server instance across cert rotations.
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// Fingerprint is the 32-byte SHA-256 of the public key.
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struct ServerIdentity {
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std::array<uint8_t, crypto_sign_ed25519_PUBLICKEYBYTES> pk{};
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std::array<uint8_t, crypto_sign_ed25519_SECRETKEYBYTES> sk{};
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std::array<uint8_t, 32> fingerprint{};
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static ServerIdentity generate();
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static ServerIdentity load(const std::filesystem::path& path);
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void save(const std::filesystem::path& path) const;
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std::string fingerprint_hex() const;
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};
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// Per-frame media encryption. Abstracted so the backend (exported-key AEAD now; a DTLS 1.3
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// backend later, if a permissive impl matures) is swappable without touching voice code.
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// ── Server TLS certificate ─────────────────────────────────────────────────────
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// Self-signed ECDSA-P256 cert for TLS. On first run, generated and persisted.
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struct ServerCert {
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std::string pem_cert;
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std::string pem_key;
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static ServerCert generate(const std::string& server_name);
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static ServerCert load(const std::filesystem::path& cert_path,
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const std::filesystem::path& key_path);
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void save(const std::filesystem::path& cert_path,
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const std::filesystem::path& key_path) const;
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};
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// ── TLS 1.3 context ───────────────────────────────────────────────────────────
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// Wraps mbedTLS for one TLS connection (server or client side).
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// All public methods except close() must be called from a single thread at a time.
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class TlsContext {
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public:
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enum class Role { Server, Client };
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// server_cert: required for server role; nullptr for client
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// pinned_fp: 32-byte Ed25519 fingerprint to accept (client TOFU); nullptr = any
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TlsContext(Role role, const ServerCert* server_cert,
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const std::array<uint8_t, 32>* pinned_fp = nullptr);
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~TlsContext();
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TlsContext(const TlsContext&) = delete;
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TlsContext& operator=(const TlsContext&) = delete;
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// Perform the TLS handshake over an already-connected BSD socket fd.
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// Blocking — run from a WorkerPool thread.
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// Returns true on success; error contains a diagnostic string on failure.
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bool handshake(int socket_fd, std::string& error);
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// Read/write post-handshake (single-threaded). Returns bytes transferred, or <0 on error.
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int read(uint8_t* buf, size_t len);
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int write(const uint8_t* buf, size_t len);
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// RFC 5705 / RFC 8446 §7.5 exporter — derive media keys after handshake.
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bool export_keying_material(const char* label, const uint8_t* ctx, size_t ctx_len,
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uint8_t* out, size_t out_len);
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// Whether the handshake completed.
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bool ready() const { return ready_; }
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// Underlying socket fd (valid after handshake). For select() in the caller.
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int native_fd() const { return net_ctx_.fd; }
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||||
|
||||
// Set per-read timeout (ms, 0 = blocking). Affects post-handshake reads.
|
||||
void set_read_timeout(uint32_t ms);
|
||||
|
||||
// True when the given return value from read() indicates a read timeout.
|
||||
static bool is_timeout_error(int rc);
|
||||
|
||||
private:
|
||||
Role role_;
|
||||
const std::array<uint8_t, 32>* pinned_fp_;
|
||||
bool ready_{false};
|
||||
|
||||
mbedtls_entropy_context entropy_{};
|
||||
mbedtls_ctr_drbg_context ctr_drbg_{};
|
||||
mbedtls_ssl_context ssl_{};
|
||||
mbedtls_ssl_config conf_{};
|
||||
mbedtls_x509_crt srvcert_{};
|
||||
mbedtls_pk_context pkey_{};
|
||||
mbedtls_net_context net_ctx_{};
|
||||
};
|
||||
|
||||
// ── Media AEAD (M2) ───────────────────────────────────────────────────────────
|
||||
// Per-frame voice encryption. Abstracted so the backend is swappable.
|
||||
class MediaCrypto {
|
||||
public:
|
||||
virtual ~MediaCrypto() = default;
|
||||
// seal/open one voice frame; `aad` carries the routable header fields (e.g. ssrc).
|
||||
// Returns bytes written, or -1 on failure (replay/auth). TODO(M2).
|
||||
virtual long seal(const uint8_t* plain, size_t len, const uint8_t* aad, size_t aad_len,
|
||||
uint8_t* out, size_t out_cap) = 0;
|
||||
virtual long open(const uint8_t* sealed, size_t len, const uint8_t* aad, size_t aad_len,
|
||||
@@ -37,4 +127,18 @@ class MediaCrypto {
|
||||
|
||||
} // namespace voicecat::crypto
|
||||
|
||||
#else // !VOICECAT_HAS_NET — skeleton stubs
|
||||
|
||||
namespace voicecat::crypto {
|
||||
|
||||
class MediaCrypto {
|
||||
public:
|
||||
virtual ~MediaCrypto() = default;
|
||||
virtual long seal(const uint8_t*, size_t, const uint8_t*, size_t, uint8_t*, size_t) = 0;
|
||||
virtual long open(const uint8_t*, size_t, const uint8_t*, size_t, uint8_t*, size_t) = 0;
|
||||
};
|
||||
|
||||
} // namespace voicecat::crypto
|
||||
|
||||
#endif // VOICECAT_HAS_NET
|
||||
#endif // VOICECAT_CRYPTO_CRYPTO_H
|
||||
|
||||
82
core/src/crypto/tofu_store.cpp
Normal file
82
core/src/crypto/tofu_store.cpp
Normal file
@@ -0,0 +1,82 @@
|
||||
#include "crypto/tofu_store.h"
|
||||
|
||||
#ifdef VOICECAT_HAS_NET
|
||||
|
||||
#include <fstream>
|
||||
#include <sstream>
|
||||
#include <stdexcept>
|
||||
|
||||
namespace voicecat::crypto {
|
||||
|
||||
TofuStore::TofuStore(std::filesystem::path path) : path_(std::move(path)) {
|
||||
load();
|
||||
}
|
||||
|
||||
TofuResult TofuStore::check_and_pin(const std::string& host, uint16_t port,
|
||||
const std::array<uint8_t, 32>& fingerprint) {
|
||||
std::lock_guard<std::mutex> lk(mu_);
|
||||
auto key = make_key(host, port);
|
||||
auto it = pins_.find(key);
|
||||
if (it == pins_.end()) {
|
||||
pins_[key] = fingerprint;
|
||||
save();
|
||||
return TofuResult::FirstConnect;
|
||||
}
|
||||
return (it->second == fingerprint) ? TofuResult::Matched : TofuResult::Mismatch;
|
||||
}
|
||||
|
||||
void TofuStore::remove(const std::string& host, uint16_t port) {
|
||||
std::lock_guard<std::mutex> lk(mu_);
|
||||
pins_.erase(make_key(host, port));
|
||||
save();
|
||||
}
|
||||
|
||||
std::string TofuStore::make_key(const std::string& host, uint16_t port) {
|
||||
return host + ":" + std::to_string(port);
|
||||
}
|
||||
|
||||
std::string TofuStore::fp_to_hex(const std::array<uint8_t, 32>& fp) {
|
||||
const char* hex = "0123456789abcdef";
|
||||
std::string s;
|
||||
s.reserve(64);
|
||||
for (auto b : fp) { s += hex[b >> 4]; s += hex[b & 0xf]; }
|
||||
return s;
|
||||
}
|
||||
|
||||
std::array<uint8_t, 32> TofuStore::hex_to_fp(const std::string& hex) {
|
||||
std::array<uint8_t, 32> fp{};
|
||||
if (hex.size() != 64) return fp;
|
||||
auto h2n = [](char c) -> uint8_t {
|
||||
if (c >= '0' && c <= '9') return c - '0';
|
||||
if (c >= 'a' && c <= 'f') return c - 'a' + 10;
|
||||
if (c >= 'A' && c <= 'F') return c - 'A' + 10;
|
||||
return 0;
|
||||
};
|
||||
for (size_t i = 0; i < 32; ++i)
|
||||
fp[i] = static_cast<uint8_t>((h2n(hex[2*i]) << 4) | h2n(hex[2*i+1]));
|
||||
return fp;
|
||||
}
|
||||
|
||||
void TofuStore::load() {
|
||||
std::ifstream f(path_);
|
||||
if (!f) return;
|
||||
std::string line;
|
||||
while (std::getline(f, line)) {
|
||||
if (line.empty() || line[0] == '#') continue;
|
||||
std::istringstream ss(line);
|
||||
std::string key, hex;
|
||||
if (ss >> key >> hex && hex.size() == 64)
|
||||
pins_[key] = hex_to_fp(hex);
|
||||
}
|
||||
}
|
||||
|
||||
void TofuStore::save() const {
|
||||
std::ofstream f(path_, std::ios::trunc);
|
||||
if (!f) throw std::runtime_error("Cannot write TOFU store: " + path_.string());
|
||||
for (auto& [key, fp] : pins_)
|
||||
f << key << " " << fp_to_hex(fp) << "\n";
|
||||
}
|
||||
|
||||
} // namespace voicecat::crypto
|
||||
|
||||
#endif // VOICECAT_HAS_NET
|
||||
54
core/src/crypto/tofu_store.h
Normal file
54
core/src/crypto/tofu_store.h
Normal file
@@ -0,0 +1,54 @@
|
||||
/*
|
||||
* crypto/tofu_store.h — Trust-On-First-Use pin storage.
|
||||
*
|
||||
* File format: one "host:port <hex-fingerprint>\n" line per entry.
|
||||
* Used by clients to remember server fingerprints across reconnects.
|
||||
*/
|
||||
#ifndef VOICECAT_CRYPTO_TOFU_STORE_H
|
||||
#define VOICECAT_CRYPTO_TOFU_STORE_H
|
||||
|
||||
#ifdef VOICECAT_HAS_NET
|
||||
|
||||
#include <array>
|
||||
#include <filesystem>
|
||||
#include <mutex>
|
||||
#include <string>
|
||||
#include <unordered_map>
|
||||
|
||||
namespace voicecat::crypto {
|
||||
|
||||
enum class TofuResult {
|
||||
FirstConnect, // no pin on file; pin has been stored
|
||||
Matched, // pin matches stored value
|
||||
Mismatch, // stored pin does not match — possible MITM or server key rotation
|
||||
};
|
||||
|
||||
class TofuStore {
|
||||
public:
|
||||
explicit TofuStore(std::filesystem::path path);
|
||||
|
||||
// Check the fingerprint for host:port. Stores on first connect.
|
||||
// Thread-safe (single-writer lock).
|
||||
TofuResult check_and_pin(const std::string& host, uint16_t port,
|
||||
const std::array<uint8_t, 32>& fingerprint);
|
||||
|
||||
// Remove the pin for host:port (e.g. after user explicitly acknowledges a key change).
|
||||
void remove(const std::string& host, uint16_t port);
|
||||
|
||||
private:
|
||||
static std::string make_key(const std::string& host, uint16_t port);
|
||||
static std::string fp_to_hex(const std::array<uint8_t, 32>& fp);
|
||||
static std::array<uint8_t, 32> hex_to_fp(const std::string& hex);
|
||||
|
||||
void load();
|
||||
void save() const;
|
||||
|
||||
std::filesystem::path path_;
|
||||
std::mutex mu_;
|
||||
std::unordered_map<std::string, std::array<uint8_t, 32>> pins_;
|
||||
};
|
||||
|
||||
} // namespace voicecat::crypto
|
||||
|
||||
#endif // VOICECAT_HAS_NET
|
||||
#endif // VOICECAT_CRYPTO_TOFU_STORE_H
|
||||
Reference in New Issue
Block a user