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AES-CCM algorithm has some restrictions when handling nonce (IV) and AAD information. As the API stated, the nonce needs to be place 1 byte after the start of the IV field. This field needs to be 16 bytes long, regardless the length of the nonce, but it is important to clarify that the first byte and the padding added after the nonce may be modified by the PMDs using this algorithm. Same happens with the AAD. It needs to be placed 18 bytes after the start of the AAD field. The field also needs to be multiple of 16 bytes long and all memory reserved (the first bytes and the padding (may be modified by the PMDs). Lastly, nonce is not needed to be placed in the first 16 bytes of the AAD, as the API stated, as that depends on the PMD used, so the comment has been removed. Signed-off-by: Pablo de Lara <pablo.de.lara.guarch@intel.com> Acked-by: Fiona Trahe <fiona.trahe@intel.com> Acked-by: Fan Zhang <roy.fan.zhang@intel.com>
DPDK is a set of libraries and drivers for fast packet processing. It supports many processor architectures and both FreeBSD and Linux. The DPDK uses the Open Source BSD license for the core libraries and drivers. The kernel components are GPLv2 licensed. Please check the doc directory for release notes, API documentation, and sample application information. For questions and usage discussions, subscribe to: users@dpdk.org Report bugs and issues to the development mailing list: dev@dpdk.org