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SourceVuESP-IDF Framework and ExamplesESP-IDFtc_aes_decrypt()

tc_aes_decrypt() function

AES-128 Encryption procedure Decrypts in buffer into out buffer under key schedule s

Syntax

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Summary

Declaration

Definition

from aes.h:123

int tc_aes_decrypt(uint8_t *out, const uint8_t *in, const TCAesKeySched_t s);

Implemented in aes_decrypt.c:129

Arguments

Argument

Description

out

IN/OUT -- buffer to receive ciphertext block

IN -- a plaintext block to encrypt

IN -- initialized AES key schedule

Return value

returns TC_CRYPTO_SUCCESS (1) returns TC_CRYPTO_FAIL (0) if: out is NULL or in is NULL or s is NULL

Notes

Assumes s was initialized by aes_set_encrypt_key out and in point to 16 byte buffers

References

Code

Location

Referrer

int tc_aes_decrypt(uint8_t *out, const uint8_t *in, const TCAesKeySched_t s)

aes_decrypt.c:129

int tc_aes_decrypt(uint8_t *out, const uint8_t *in, const TCAesKeySched_t s)

aes_decrypt.c:129

int tc_aes_decrypt(uint8_t *out, const uint8_t *in,

aes.h:123

int tc_aes_decrypt(uint8_t *out, const uint8_t *in,

aes.h:123

(void)tc_aes_decrypt(buffer, in, sched);

cbc_mode.c:106

tc_cbc_mode_decrypt()

(void)tc_aes_decrypt(buffer, in, sched);

cbc_mode.c:106

tc_cbc_mode_decrypt()

Call Tree

tc_aes_decrypt() is called by 1 function and calls 10 functions:

tc_cbc_mode_decrypt()

tc_aes_decrypt()

Data Use

tc_aes_decrypt() reads 1 variable:

tc_aes_key_sched_struct::words

tc_aes_decrypt()

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