mirror of
https://github.com/mikecarper/MeshCore.git
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45 lines
1.5 KiB
C++
45 lines
1.5 KiB
C++
#include <cassert>
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#include <cstring>
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#include <helpers/ContactSecretCache.h>
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class NoIoBackend : public mesh::ContactSecretBackend {
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public:
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bool readSavedSecret(const uint8_t*, const uint8_t*, uint8_t*) override {
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assert(false && "ESP32 cache misses must not read flash");
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return false;
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}
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bool saveSecret(const uint8_t*, const uint8_t*, const uint8_t*) override {
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assert(false && "ESP32 cache misses must not write flash");
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return false;
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}
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};
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int main() {
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NoIoBackend backend;
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mesh::ContactSecretCache cache;
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cache.attach(&backend);
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mesh::LocalIdentity self, peer;
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uint8_t seed[32] = {1};
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ed25519_create_keypair(self.pub_key, self.private_key, seed);
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seed[0] = 2;
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ed25519_create_keypair(peer.pub_key, peer.private_key, seed);
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uint8_t expected[32];
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peer.calcSharedSecret(expected, self.pub_key);
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assert(memcmp(cache.get(self, peer.pub_key), expected, 32) == 0);
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assert(memcmp(cache.get(self, peer.pub_key), expected, 32) == 0);
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assert(self.derivations == 1 && cache.ram_hits == 1);
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for (unsigned i = 3; i < 20; ++i) {
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mesh::LocalIdentity other;
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seed[0] = i;
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ed25519_create_keypair(other.pub_key, other.private_key, seed);
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cache.get(self, other.pub_key);
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}
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const unsigned before = self.derivations;
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assert(memcmp(cache.get(self, peer.pub_key), expected, 32) == 0);
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assert(self.derivations == before + 1);
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assert(cache.flash_hits == 0 && cache.save_failures == 0);
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self.private_key[1] ^= 2;
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assert(memcmp(cache.get(self, peer.pub_key), expected, 32) != 0);
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assert(self.derivations == before + 2);
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}
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