Methods, systems, and computer readable media for accelerating stateless IPsec traffic generation by performing ESP rehashing of ESP packets are disclosed. A first ESP packet is generated by encrypting a portion of the packet and adding ESP headers and trailers to the encrypted portion, hashing the encrypted portion and the ESP header to compute a first ESP integrity check value (ICV), and adding the ESP ICV as a trailer to the ESP packet. At least one second ESP packet is generated by modifying parameters in the first ESP packet. The first and second ESP packets are transmitted to a device under test.
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