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SourceVuESP-IDF Framework and ExamplesmbedTLSmbedtls_psa_hmac_operation_t::opad

mbedtls_psa_hmac_operation_t::opad field

The HMAC part of the context.

Syntax

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Summary

Declaration

from crypto_builtin_composites.h:51

uint8_t MBEDTLS_PRIVATE(opad)[PSA_HMAC_MAX_HASH_BLOCK_SIZE];

References

Code

Location

Referrer

uint8_t MBEDTLS_PRIVATE(opad)[PSA_HMAC_MAX_HASH_BLOCK_SIZE];

crypto_builtin_composites.h:51

mbedtls_platform_zeroize(hmac->opad, sizeof(hmac->opad));

psa_crypto_mac.c:27

psa_hmac_abort_internal()

if (block_size > sizeof(hmac->opad)) {

psa_crypto_mac.c:54

psa_hmac_setup_internal()

hmac->opad[i] = ipad[i] ^ 0x36 ^ 0x5C;

psa_crypto_mac.c:86

psa_hmac_setup_internal()

memset(hmac->opad + key_length, 0x5C, block_size - key_length);

psa_crypto_mac.c:88

psa_hmac_setup_internal()

status = psa_hash_update(&hmac->hash_ctx, hmac->opad, block_size);

psa_crypto_mac.c:133

psa_hmac_finish_internal()

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Data Use

mbedtls_psa_hmac_operation_t::opad is read by 3 functions:

mbedtls_psa_hmac_operation_t::opad

psa_hmac_abort_internal()

psa_hmac_setup_internal()

psa_hmac_finish_internal()

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