[v2] vpnaas: add support for more ciphers (auth, encryption, pfs modes) #3333
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For VPNaaS IKE policies and IPSEC policies several choices for encryption algorithms, auth algorithms and PFS modes have been added. Encryption algorithms: add AES CCM mode and AES GCM mode variants for 128/192/256 bit keys and 8/12/16 octet ICVs. Add AES CTR modes for 128/192/256 bit keys. Auth algorithms: add aes-xcbc and aes-cmac. PFS: add Diffie Hellman groups 15 to 31. Closes: #3314
mandre
approved these changes
Mar 23, 2025
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Backport: #3315
For VPNaaS IKE policies and IPSEC policies several choices for encryption algorithms, auth algorithms and PFS modes have been added.
Encryption algorithms: add AES CCM mode and AES GCM mode variants for 128/192/256 bit keys and 8/12/16 octet ICVs. Add AES CTR modes for 128/192/256 bit keys.
Auth algorithms: add aes-xcbc and aes-cmac.
PFS: add Diffie Hellman groups 15 to 31.
Closes: #3314
Fixes #3314
Links to the line numbers/files in the OpenStack source code that support the
code in this PR:
https://opendev.org/openstack/neutron-lib/src/commit/bf21a6dcd48bdd15c28086f256319ac035b7fef0/neutron_lib/api/definitions/vpn.py#L47
https://opendev.org/openstack/neutron-lib/src/branch/master/neutron_lib/api/definitions/vpn_aes_ctr.py
https://opendev.org/openstack/neutron-lib/src/commit/bf21a6dcd48bdd15c28086f256319ac035b7fef0/neutron_lib/api/definitions/vpn.py#L178
https://opendev.org/openstack/neutron-lib/src/branch/master/neutron_lib/api/definitions/vpn_aes_ctr.py