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→AES_CTR
This register specifies the counter (CTR mode), nonce (CCM mode) or the initialization vector (CBC mode) depending on the mode of operation.
This register specifies the counter (CTR mode), nonce (CCM mode) or the initialization vector (CBC mode) depending on the mode of operation.
For CBC and CTR mode this register takes up the full 16 bytes, but for CCM mode the nonce is only the first 12 bytes.
For CBC and CTR mode this register takes up the full 16 bytes, but for CCM mode the nonce is only the first 12 bytes.
The AES engine will automatically increment the counter up to the maximum BLKCNT, after which point it must be manually incremented and set again.
== AES_MAC ==
== AES_MAC ==