Change log

[chrysn]

Please introduce a change log in the document in the next version, eg. in a "This section is to be removed before publication" appendix.

For purpose of the implementers it'd suffice to list mechanical changes there, and helpful if they were distinct (if only in sequence) from editorial changes if they are listed at all.

[StefanHri]

Hi all,
I went through the last few drafts and made a changelog, which may be helpful for someone else too

`

EDHOC Changes

July 06, 2020 draft-selander-lake-edhoc-01 -> draft-ietf-lake-edhoc-00

• in the test vector - connection identifier chosen by Responder (1 bytes) changed form 2b to 13. -> No action required since data_2 (CBOR Sequence) remains the same
• Text improvements

August 02, 2020 draft-ietf-lake-edhoc-00.txt -> draft-ietf-lake-edhoc-01.txt

• PSK mode removed
• Message size example changed to have only kid and x5t
• x5bag and x5chain identifiers for public keys removed
• Text improvements

November 02, 2020 draft-ietf-lake-edhoc-01.txt -> draft-ietf-lake-edhoc-02.txt

• Added test vector for static DH autthentication
• Clarification regarding bstr_identifier
• Text improvements

December 18, 2020 draft-ietf-lake-edhoc-02.txt -> draft-ietf-lake-edhoc-03.txt

• added Appendix C. Applicability Statement Template
• Clarifications regarding Authentication Credentials
• Cipher Suites 4 and 5 added
• EDHOC-EXPORTER-FS - generate a new PRK_4x3m from a old one
• Changes in CPHERTEXT_2 calculation -> No changes in the test vector
• Error message clarifications
• Text improvements

January 27, 2021 draft-ietf-lake-edhoc-03.txt -> draft-ietf-lake-edhoc-04.txt

• Added message 4
• "K_2e", "IV_2e" -> KEYSTREAM_2
• EDHOC-Exporter-FS -> EDHOC-Rekey-FS
• Changes in CPHERTEXT_2 calculation -> CIPHERTEXT_2 = plaintext XOR KEYSTREAM_2
• less constrained devices SHOULD implement both suite 0 and 2
• Exporter interface test vector added
• Text improvements

22 February, 2021 draft-ietf-lake-edhoc-04.txt -> draft-ietf-lake-edhoc-05.txt

• EDHOC-Rekey-FS -> EDHOC-KeyUpdate
• Text improvements
• Appendix B.1.1
  • last byte of message 1 0x40 -> 0x2e
  • C_R im data_2 13 -> 37 -> different TH_2
  • Different CRED_R -> many following differences in B.1.1
  • KEYSTREAM_2 used
• Appendix B.2.1
  • different C_R -> many following differences
  • KEYSTREAM_2 used`

[gselander]

Thanks Stefan! We can use this as a basis for the new appendix.

[emanjon]

This is a very good idea. I think we can close this now