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Question with Using AES CCM Mode With IPsec ESP
Hi Mr. Housley:
After reading "Using AES CCM Mode With IPsec ESP
<draft-ietf-ipsec-ciph-aes-ccm-05.txt>," I have two questions about constructing AAD.
1. Is the "64-bit Extended Sequence Number" transmitted? Or only "Low
32-bit of Extended Sequence Number" is transmitted.
2. In "IP Encapsulating Security Payload (ESP)
<draft-ietf-ipsec-esp-v3-08.txt>," it is mentioned that the high 32-bit of
Extended Sequence Number is placed after the "Next Header" field. The
Location for high 32-bit of Extended Sequence Number is differently
defined in <draft-ietf-ipsec-esp-v3-08.txt> and
<draft-ietf-ipsec-ciph-aes-ccm-05.txt>. Could you comment on this?
Thank you very much.
Jimmy Hsieh