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SourceVuESP-IDF Framework and ExamplesmbedTLSesp_sha_read_digest_state()

esp_sha_read_digest_state() function

Read out the current state of the SHA digest loaded in the engine. If the SHA suffix padding block has been executed already, the value that is read is the SHA digest (in big endian format). Otherwise, the value that is read is an interim SHA state.

Syntax

Show:

Summary

Declaration

Definition

from sha_parallel_engine.h:123

void esp_sha_read_digest_state(esp_sha_type sha_type, void *digest_state);

Implemented in sha.c:192

Arguments

Argument

Description

sha_type

SHA algorithm in use.

digest_state

Notes

This is a piece of a SHA algorithm, rather than an entire SHA algorithm. Call esp_sha_try_lock_engine() before calling this function. Do not call esp_sha_lock_memory_block() beforehand, this is done inside the function. If sha_type is SHA2_384, only 48 bytes of state will be read. This is enough for the final SHA2_384 digest, but if you want the interim SHA-384 state (to continue digesting) then pass SHA2_512 instead.

References

Code

Location

Referrer

void esp_sha_read_digest_state(esp_sha_type sha_type, void *digest_state)

void esp_sha_read_digest_state(esp_sha_type sha_type, void *digest_state);

sha_parallel_engine.h:123

esp_sha_read_digest_state(SHA1, dst->state);

mbedtls_sha1_clone()

esp_sha_read_digest_state(SHA1, ctx->state);

esp_internal_sha1_parallel_engine_process()

esp_sha_read_digest_state(SHA1, ctx->state);

mbedtls_sha1_update()

esp_sha_read_digest_state(SHA1, ctx->state);

mbedtls_sha1_finish()

esp_sha_read_digest_state(SHA2_256, dst->state);

esp_sha256.c:95

mbedtls_sha256_clone()

esp_sha_read_digest_state(SHA2_256, ctx->state);

esp_sha256.c:257

esp_internal_sha256_parallel_engine_process()

esp_sha_read_digest_state(SHA2_256, ctx->state);

esp_sha256.c:319

mbedtls_sha256_update()

esp_sha_read_digest_state(SHA2_256, ctx->state);

esp_sha256.c:366

mbedtls_sha256_finish()

esp_sha_read_digest_state(SHA2_512, dst->state);

esp_sha512.c:118

mbedtls_sha512_clone()

esp_sha_read_digest_state(sha_type(ctx), ctx->state);

esp_sha512.c:293

esp_internal_sha512_parallel_engine_process()

esp_sha_read_digest_state(sha_type(ctx), ctx->state);

esp_sha512.c:353

mbedtls_sha512_update()

esp_sha_read_digest_state(sha_type(ctx), ctx->state);

esp_sha512.c:404

mbedtls_sha512_finish()

Call Tree

esp_sha_read_digest_state() is called by 12 functions and calls 7 functions:

mbedtls_sha1_clone()

esp_internal_sha1_parallel_engine_process()

mbedtls_sha1_update()

mbedtls_sha1_finish()

mbedtls_sha256_clone()

esp_internal_sha256_parallel_engine_process()

mbedtls_sha256_update()

mbedtls_sha256_finish()

mbedtls_sha512_clone()

esp_internal_sha512_parallel_engine_process()

mbedtls_sha512_update()

mbedtls_sha512_finish()

esp_sha_read_digest_state()

__assert_func()

uxQueueMessagesWaiting()

sha_hal_wait_idle()

sha_hal_read_digest()

esp_sha_lock_memory_block()

esp_sha_unlock_memory_block()

sha_get_engine_state()

Data Use

esp_sha_read_digest_state():

esp_sha_read_digest_state()

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