6  *  SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
349                            unsigned char *output,  in mbedtls_psa_get_random()  argument
358     psa_status_t status = psa_generate_random(output, output_size);  in mbedtls_psa_get_random()
371  * \brief  Convert a single raw coordinate to DER ASN.1 format. The output der
374  * \param raw_buf           Buffer containing the raw coordinate to be
379  * \param der_buf_end       End of the buffer used to store the DER output.
385  * \return                  MBEDTLS_ERR_ASN1_INVALID_DATA if the input raw
388  * \warning                 Raw and der buffer must not be overlapping.
403         --raw_len;  in convert_raw_to_der_single_int()
410     /* Copy the raw coordinate to the end of der_buf. */  in convert_raw_to_der_single_int()
411     if ((p - der_buf_start) < len) {  in convert_raw_to_der_single_int()
414     p -= len;  in convert_raw_to_der_single_int()
419         if ((p - der_buf_start) < 1) {  in convert_raw_to_der_single_int()
422         --p;  in convert_raw_to_der_single_int()
433 int mbedtls_ecdsa_raw_to_der(size_t bits, const unsigned char *raw, size_t raw_len,  in mbedtls_ecdsa_raw_to_der()  argument
449     /* Since raw and der buffers might overlap, dump r and s before starting  in mbedtls_ecdsa_raw_to_der()
451     memcpy(r, raw, coordinate_len);  in mbedtls_ecdsa_raw_to_der()
452     memcpy(s, raw + coordinate_len, coordinate_len);  in mbedtls_ecdsa_raw_to_der()
460     p -= ret;  in mbedtls_ecdsa_raw_to_der()
467     p -= ret;  in mbedtls_ecdsa_raw_to_der()
484  * \brief Convert a single integer from ASN.1 DER format to raw.
489  * \param raw               Output buffer that will be filled with the
493  * \param coordinate_size   Size (in bytes) of a single coordinate in raw
501  *                          is null (i.e. all zeros) or if the output raw buffer
502  *                          is too small to contain the converted raw value.
504  * \warning                 Der and raw buffers must not be overlapping.
507                                          unsigned char *raw, size_t coordinate_size)  in convert_der_to_raw_single_int()  argument
521      * - unpadded_len == 0.  in convert_der_to_raw_single_int()
522      * - MSb set without a leading 0x00 (leading 0x00 is checked below). */  in convert_der_to_raw_single_int()
530         unpadded_len--;  in convert_der_to_raw_single_int()
543     padding_len = coordinate_size - unpadded_len;  in convert_der_to_raw_single_int()
544     /* raw buffer was already zeroed by the calling function so zero-padding  in convert_der_to_raw_single_int()
546     memcpy(raw + padding_len, p, unpadded_len);  in convert_der_to_raw_single_int()
549     return (int) (p - der);  in convert_der_to_raw_single_int()
553                              unsigned char *raw, size_t raw_size, size_t *raw_len)  in mbedtls_ecdsa_der_to_raw()  argument
561     /* The output raw buffer should be at least twice the size of a raw  in mbedtls_ecdsa_der_to_raw()
585     data_len -= ret;  in mbedtls_ecdsa_der_to_raw()
594     data_len -= ret;  in mbedtls_ecdsa_der_to_raw()
597     if ((size_t) (p - der) != der_len) {  in mbedtls_ecdsa_der_to_raw()
601     memcpy(raw, raw_tmp, 2 * coordinate_size);  in mbedtls_ecdsa_der_to_raw()