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For FCS_CKM.5, there are specific requirements on TwoStep KDFs:
** If an AES-CMAC (with key length 128, 192, or 256 bits) is used in the randomness extraction step, then AES-CMAC with a 128-bit key i…
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Hi,
I'm trying to use migrate a CMAC function from OpenSSL 1 to 3, going from the deprecated CMAC API to the EVP_MAC API.
Unfortunately I am stuck, I cannot make the EVP_MAC_init call to work. I'v…
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IV needs to match block size but the key size could be 256bit.
CMAC.init works fine if coincidentally AES128 keys are used because the blocksize and key size are same. Breaks for AES256
https://g…
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I've recently packaged a git snapshot of aircrack-ng for Debian (at the current HEAD https://github.com/aircrack-ng/aircrack-ng/commit/4bf83f1a7631d6721c17a35597d2f71b35ff30bf), and stumbled upon fail…
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Hi team,
I am using Opennic design in alveo u200 and I am trying to enable auto-negotiation in the cmac_usplus_0 component. But encountering issues with bitstream generation. The following error mes…
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Hi team,
I am using Opennic design in alveo u200 and I am trying to enable auto-negotiation in the cmac_usplus_0 component. But encountering issues with bitstream generation. The following error mess…
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Hello,
We are having trouble with the dual port configuration of Open Nic, as we are hoping to receive 50 Gbps per port with tx disabled on both cmacs. ONIC is configured with dual cmacs and a sing…
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Cipher-based Message Authentication Code (CMAC) is not implemented or documentation is not clear how to use.
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cmac 分为两个大的部分,cmac_reg和cmac_core。
reg部分负责和csb和dp交互,core负责计算。ping-pong reg,在官方文档里有介绍。
重点说说core,
因为core是要计算weight和data的向量积的,其中weight是要被缓存的,然后data不断被push进去。所以weight的部分先被存入shadow区,然后有data进来并满足csc…
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A degradation in the performance in CMAC in 3.0 alpha 13:
- Alpha 12 is faster without the additional _init() args if code takes advantage of pre-installation of keys etc.
- 1.1.1 is faster via th…