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Doc: S2 HMAC documentation

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Jakob Hasse
2020-04-15 14:06:10 +08:00
parent 017f07cda7
commit 2da7e65646
7 changed files with 146 additions and 2 deletions
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4
components/esp32s2/include/esp_hmac.h
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@@ -44,12 +44,12 @@ typedef enum {
*
* @note Uses the HMAC peripheral in "upstream" mode.
*
* @param key_id Determines which of the 7 key blocks in the efuses should be used for the HMAC calcuation.
* @param key_id Determines which of the 6 key blocks in the efuses should be used for the HMAC calcuation.
* The corresponding purpose field of the key block in the efuse must be set to the HMAC upstream purpose value.
* @param message the message for which to calculate the HMAC
* @param message_len message length
* return ESP_ERR_INVALID_STATE if unsuccessful
* @param [out] hmac the hmac result
* @param [out] hmac the hmac result; the buffer behind the provided pointer must be 32 bytes long
*
* @return
* * ESP_OK, if the calculation was successful,