Encoding of X and Y ECDH coordinates is unspecified #1756
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swenson
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Nov 15, 2024
Mostly. We need to keep a limited amount of storage per AES-256-GCM key to track usage, since these keys can only be used a certain number of times due to their IV problems. For HMAC, we don't specify a key usage on the output MAC, since it has to be imported back into Caliptra to be used as a key, where its usage will have to be specified. We also fix a few other minor issues with the mailbox documentation: Fixes #1753 Fixes #1754 Fixes #1755 Fixes #1756
swenson
added a commit
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Nov 15, 2024
Mostly. We need to keep a limited amount of storage per AES-256-GCM key to track usage, since these keys can only be used a certain number of times due to their IV problems. For HMAC, we don't specify a key usage on the output MAC, since it has to be imported back into Caliptra to be used as a key, where its usage will have to be specified. We also fix a few other minor issues with the mailbox documentation: Fixes #1753 Fixes #1754 Fixes #1755 Fixes #1756
swenson
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Nov 20, 2024
Mostly. We need to keep a limited amount of storage per AES-256-GCM key to track usage, since these keys can only be used a certain number of times due to their IV problems. For HMAC, we don't specify a key usage on the output MAC, since it has to be imported back into Caliptra to be used as a key, where its usage will have to be specified. We also fix a few other minor issues with the mailbox documentation: Fixes #1753 Fixes #1754 Fixes #1755 Fixes #1756
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https://github.com/chipsalliance/caliptra-sw/blob/main-2.x/runtime/README.md describes
CM_ECDH_GENERATEandCM_ECDH_FINISH, which return and accept X/Y coordinate pairs. However, the encoding is unclear. We should specify that these are big-endian.The text was updated successfully, but these errors were encountered: