CONFIG_MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN

Enable MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN

Type: bool

Help

Enable support for zeros and length padding for CBC cipher functions in mbedTLS.
That is, fill buffer with 00 .. 00 ll, where ll is padding length.

Direct dependencies

MBEDTLS_CIPHER_MODE_CBC && MBEDTLS_AES_C && MBEDTLS_LEGACY_CRYPTO_C && NRF_SECURITY

(Includes any dependencies from ifs and menus.)

Default

• y

Kconfig definition

At <nrfxlib>/nrf_security/Kconfig.legacy:400

Included via <Zephyr>/Kconfig:8 → <Zephyr>/Kconfig.zephyr:33 → <Zephyr>/modules/Kconfig:6 → <nRF>/doc/_build/kconfig/Kconfig.modules:92 → <nrfxlib>/Kconfig.nrfxlib:13 → <nrfxlib>/nrf_security/Kconfig:111

Menu path: (Top) → Modules → nrfxlib (/home/runner/work/sdk-nrf/sdk-nrf/ncs/nrfxlib) → Nordic nrfxlib → nrf_security module → Legacy mbed TLS crypto APIs → Enable (legacy) mbed TLS crypto APIs → AES - Advanced Encryption Standard → AES-CBC - AES Cipher Block Chaining mode → CBC cipher padding modes

config MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN
    bool "Enable MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN"
    default y
    depends on MBEDTLS_CIPHER_MODE_CBC && MBEDTLS_AES_C && MBEDTLS_LEGACY_CRYPTO_C && NRF_SECURITY
    help
      Enable support for zeros and length padding for CBC cipher functions in mbedTLS.
      That is, fill buffer with 00 .. 00 ll, where ll is padding length.

(The ‘depends on’ condition includes propagated dependencies from ifs and menus.)