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Remove unnecessary code

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Calls to abort that are now being done by the psa_crypto layer, freeing
of tempory allocations (done by abort) and a couple of checks that had
already been done prior to that point

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2021-05-13 18:33:43 +01:00
parent 6108ee7c2d
commit b06e1c0d68
1 changed files with 0 additions and 22 deletions
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22
library/psa_crypto_aead.c
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@ -658,11 +658,6 @@ psa_status_t mbedtls_psa_aead_update( mbedtls_psa_aead_operation_t *operation,
operation->tag_buffer,
operation->tag_length ) );
/* Even if the above operation fails, we no longer need the
additional data.*/
mbedtls_free( operation->ad_buffer );
operation->ad_buffer = NULL;
operation->ad_length = 0;
}
else
{
@ -784,9 +779,6 @@ psa_status_t mbedtls_psa_aead_finish( mbedtls_psa_aead_operation_t *operation,
/* Copy the previously generated tag into place */
memcpy( tag, operation->tag_buffer, operation->tag_length );
mbedtls_free(operation->tag_buffer);
operation->tag_buffer = NULL;
status = PSA_SUCCESS;
}
else
@ -815,8 +807,6 @@ psa_status_t mbedtls_psa_aead_finish( mbedtls_psa_aead_operation_t *operation,
*tag_length = operation->tag_length;
}
mbedtls_psa_aead_abort(operation);
return ( status );
}
@ -858,9 +848,6 @@ psa_status_t mbedtls_psa_aead_verify( mbedtls_psa_aead_operation_t *operation,
#if defined(MBEDTLS_PSA_BUILTIN_ALG_CCM)
if( operation->alg == PSA_ALG_CCM )
{
if( !operation->ad_buffer || !operation->body_buffer )
return( PSA_ERROR_BAD_STATE );
/* Perform oneshot CCM decryption *again*, as its the
* only way to get the tag, but this time throw away the
results, as verify cannot write that much data. */
@ -895,13 +882,6 @@ psa_status_t mbedtls_psa_aead_verify( mbedtls_psa_aead_operation_t *operation,
/* Even if the above operation fails, we no longer need the data */
mbedtls_free(temp_buffer);
mbedtls_free(operation->body_buffer);
operation->body_buffer = NULL;
operation->body_length = 0;
mbedtls_free(operation->tag_buffer);
operation->tag_buffer = NULL;
}
else
#endif /* MBEDTLS_PSA_BUILTIN_ALG_CCM */
@ -933,8 +913,6 @@ psa_status_t mbedtls_psa_aead_verify( mbedtls_psa_aead_operation_t *operation,
status = PSA_ERROR_INVALID_SIGNATURE;
}
mbedtls_psa_aead_abort(operation);
return ( status );
}