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This is to allow having pre IDF v4.3 behavior where "encrypted"
flag was not being checked for NVS partitions.
It is recommended to enable this new config only if you have
production devices where NVS partition was being set with "encrypted"
flag by mistake.
Please see commit aca9ec28b3 which
introduced check to not allow NVS partitions with "encrypted" flag set.
More discussion on this at:
https://github.com/espressif/esp-idf/issues/5747#issuecomment-956223024
https://github.com/espressif/esp-idf/issues/7839#issuecomment-961477667
Closes https://github.com/espressif/esp-idf/issues/7839
Closes IDFGH-6162
24 lines
1.1 KiB
Plaintext
24 lines
1.1 KiB
Plaintext
menu "NVS"
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config NVS_ENCRYPTION
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bool "Enable NVS encryption"
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default y
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depends on SECURE_FLASH_ENC_ENABLED
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help
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This option enables encryption for NVS. When enabled, AES-XTS is used to encrypt
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the complete NVS data, except the page headers. It requires XTS encryption keys
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to be stored in an encrypted partition. This means enabling flash encryption is
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a pre-requisite for this feature.
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config NVS_COMPATIBLE_PRE_V4_3_ENCRYPTION_FLAG
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bool "NVS partition encrypted flag compatible with ESP-IDF before v4.3"
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depends on SECURE_FLASH_ENC_ENABLED
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help
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Enabling this will ignore "encrypted" flag for NVS partitions. NVS encryption
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scheme is different than hardware flash encryption and hence it is not recommended
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to have "encrypted" flag for NVS partitions. This was not being checked in pre v4.3
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IDF. Hence, if you have any devices where this flag is kept enabled in partition
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table then enabling this config will allow to have same behavior as pre v4.3 IDF.
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endmenu
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