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(Very preliminary) performance results test conditions: 512000 packets send, 512 bytes/packet (total of 250 kB) HMAC-SHA-1 with 160 bit keys 100 keys per TESLA key chain, 0.5s TESLA time interval measure the time taken to send all packets (no receiver) results (sender): TESLA (W/O group MAC): 6.362 s Group MAC authentication: 6.063 s Digital signatures authentication: 776.548 s TESLA is only 4.93% slower than Group MAC auth. more detailed performance analysis under progress |