HAL
HAL_HMACEx_SHA256_Step2_DMA() is only used within HAL.
 
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SummarySyntaxArgumentsRelatedReferences

Return value

HAL status

Notes

Step 2 consists in writing the message text in the Peripheral. The API carries on the HMAC step 2, applied to the buffer entered as input parameter. DCAL bit is not automatically set after the message buffer feeding, allowing other messages DMA transfers to occur. Same key is used for the inner and the outer hash functions; pointer to key and key size are respectively stored in hhash->Init.pKey and hhash->Init.KeySize. The input buffer size (in bytes) must be a multiple of 4 otherwise, the HASH digest computation is corrupted.

References

from examples