[gnutls-devel] GnuTLS | crypto-api: support SIV ciphers with encryptv2 functions (!1515)

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Sun Jan 16 17:43:35 CET 2022

Daiki Ueno created a merge request: https://gitlab.com/gnutls/gnutls/-/merge_requests/1515

Project:Branches: dueno/gnutls:wip/dueno/siv-iov to gnutls/gnutls:master
Author:   Daiki Ueno

The AES-SIV ciphers have a peculiarity that it prepends authentication
tag to the generated ciphertext rather than appending.  The
gnutls_aead_cipher_encryptv2 previously was not able to cope with that
and returned wrong authentication tag.  This patch adds a new cipher

## Checklist
 * [x] Commits have `Signed-off-by:` with name/author being identical to the commit author
 * [ ] Code modified for feature
 * [ ] Test suite updated with functionality tests
 * [ ] Test suite updated with negative tests
 * [ ] Documentation updated / NEWS entry present (for non-trivial changes)
 * [ ] CI timeout is 2h or higher (see Settings/CICD/General pipelines/Timeout)

## Reviewer's checklist:
 * [ ] Any issues marked for closing are addressed
 * [ ] There is a test suite reasonably covering new functionality or modifications
 * [ ] Function naming, parameters, return values, types, etc., are consistent and according to `CONTRIBUTION.md`
 * [ ] This feature/change has adequate documentation added
 * [ ] No obvious mistakes in the code

Reply to this email directly or view it on GitLab: https://gitlab.com/gnutls/gnutls/-/merge_requests/1515
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