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SourceVuESP-IDF Framework and ExamplesmbedTLSmbedtls_cipher_info_from_values()

mbedtls_cipher_info_from_values() function

This function retrieves the cipher-information structure associated with the given cipher ID, key size and mode.

Syntax

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Summary

Declaration

Definition

from cipher.h:424

const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values(const mbedtls_cipher_id_t cipher_id, int key_bitlen, const mbedtls_cipher_mode_t mode);

Implemented in cipher.c:117

Arguments

Argument

Description

cipher_id

The ID of the cipher to search for. For example, #MBEDTLS_CIPHER_ID_AES.

key_bitlen

The length of the key in bits.

mode

The cipher mode. For example, #MBEDTLS_MODE_CBC.

Return value

The cipher information structure associated with the given \p cipher_id. \c NULL if the associated cipher information is not found.

References

Code

Location

Referrer

const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values(

cipher.c:117

const mbedtls_cipher_info_t *mbedtls_cipher_info_from_values(const mbedtls_cipher_id_t cipher_id,

cipher.h:424

cipher_info = mbedtls_cipher_info_from_values(cipher, keybits,

ccm.c:72

mbedtls_ccm_setkey()

cipher_info = mbedtls_cipher_info_from_values(cipher, keybits,

gcm.c:212

mbedtls_gcm_setkey_soft()

return mbedtls_cipher_info_from_values(cipher_id_tmp, (int) key_bits, mode);

psa_crypto_cipher.c:276

mbedtls_cipher_info_from_psa()

Call Tree

mbedtls_cipher_info_from_values() is called by 4 functions and calls 2 functions:

mbedtls_ccm_setkey()

mbedtls_gcm_setkey_soft()

mbedtls_gcm_setkey()

mbedtls_cipher_info_from_psa()

mbedtls_cipher_info_from_values()

mbedtls_cipher_info_get_key_bitlen()

mbedtls_cipher_get_base()

Data Use

mbedtls_cipher_info_from_values() reads 4 variables:

mbedtls_cipher_info_t::mode

mbedtls_cipher_base_t::cipher

mbedtls_cipher_definition_t::info

mbedtls_cipher_definitions

mbedtls_cipher_info_from_values()

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