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Open Issue: Recommended Hash-Function Digest Function Collisions relevant Speed less important (only operate on selected packets) Pro CRC Faster in hardware ? But existing implementations cannot be used ? Pro BOB BOB is faster than CRC on software implementation BOB achieves similar good collision probability as CRC Approaches: 1. BOB for digest, IPSX for IPv4 selection, BOB for IPv6 selection, others optional 2. BOB for digest and selection, others optional ? Still ongoing discussion on list |