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@ -1,3 +1,5 @@
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#include <time.h>
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#include <stdio.h>
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#include <cryptopp/sha.h>
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#include <cryptopp/osrng.h>
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#include <cryptopp/dh.h>
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@ -43,5 +45,30 @@ namespace data
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return keys;
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}
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RoutingKey CreateRoutingKey (const IdentHash& ident)
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{
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uint8_t buf[41]; // ident + yyyymmdd
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memcpy (buf, (const uint8_t *)ident, 32);
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time_t t = time (nullptr);
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struct tm tm;
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gmtime_r (&t, &tm);
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sprintf ((char *)(buf + 32),"%4i%2i%2i", tm.tm_year, tm.tm_mon, tm.tm_mday);
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RoutingKey key;
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CryptoPP::SHA256().CalculateDigest(key.hash, buf, 40);
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return key;
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}
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XORMetric operator^(const RoutingKey& key1, const RoutingKey& key2)
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{
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// TODO: implementation depends on CPU
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XORMetric m;
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((uint64_t *)m.metric)[0] = ((uint64_t *)key1.hash)[0] ^ ((uint64_t *)key2.hash)[0];
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((uint64_t *)m.metric)[1] = ((uint64_t *)key1.hash)[1] ^ ((uint64_t *)key2.hash)[1];
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((uint64_t *)m.metric)[2] = ((uint64_t *)key1.hash)[2] ^ ((uint64_t *)key2.hash)[2];
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((uint64_t *)m.metric)[3] = ((uint64_t *)key1.hash)[3] ^ ((uint64_t *)key2.hash)[3];
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return m;
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}
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}
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}
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