TeamHepta/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2026-05-11 14:38:17 +02:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #8703 from valeriosetti/issue7765-guards-in-asn1

Browse Source 
Conversion function between raw and DER ECDSA signatures (guards in ASN1)
This commit is contained in:
Manuel Pégourié-Gonnard
2024-02-08 08:45:30 +00:00
committed by GitHub
parent 7bf1e98f44 1910390b4a
commit b7307630bb
12 changed files with 596 additions and 169 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
tests/scripts/all.sh
View File

@@ -1079,8 +1079,8 @@ component_check_test_dependencies () {
echo "!MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH" >> $expected
# No PSA equivalent - used to skip decryption tests in PSA-ECB, CBC/XTS/NIST_KW/DES
echo "!MBEDTLS_BLOCK_CIPHER_NO_DECRYPT" >> $expected
# This is used by import_rsa_made_up() in test_suite_psa_crypto in order
# to build a fake RSA key of the wanted size based on
# MBEDTLS_ASN1_WRITE_C is used by import_rsa_made_up() in test_suite_psa_crypto
# in order to build a fake RSA key of the wanted size based on
# PSA_VENDOR_RSA_MAX_KEY_BITS. The legacy module is only used by
# the test code and that's probably the most convenient way of achieving
# the test's goal.

167
tests/suites/test_suite_psa_crypto_util.data Normal file
View File

@@ -0,0 +1,167 @@
ECDSA Raw -> DER, 256bit, Success
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":0
ECDSA Raw -> DER, 256bit, DER buffer too small
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":"304402201111111111111111111111111111111111111111111111111111111111111111022022222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_BUF_TOO_SMALL
ECDSA Raw -> DER, 256bit, Null r
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"00000000000000000000000000000000000000000000000000000000000000002222222222222222222222222222222222222222222222222222222222222222":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA Raw -> DER, 256bit, Null s
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"11111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA Raw -> DER, 256bit, r with MSb set
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"91111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":"3045022100911111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":0
ECDSA Raw -> DER, 256bit, s with MSb set
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"1111111111111111111111111111111111111111111111111111111111111111A222222222222222222222222222222222222222222222222222222222222222":"304502201111111111111111111111111111111111111111111111111111111111111111022100A222222222222222222222222222222222222222222222222222222222222222":0
ECDSA Raw -> DER, 256bit, both r and s with MSb set
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"A111111111111111111111111111111111111111111111111111111111111111A222222222222222222222222222222222222222222222222222222222222222":"3046022100A111111111111111111111111111111111111111111111111111111111111111022100A222222222222222222222222222222222222222222222222222222222222222":0
ECDSA Raw -> DER, 256bit, r and s only 1 byte of data
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"00000000000000000000000000000000000000000000000000000000000000110000000000000000000000000000000000000000000000000000000000000022":"3006020111020122":0
ECDSA Raw -> DER, 256bit, r and s only 1 byte of data with MSb set
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"000000000000000000000000000000000000000000000000000000000000009100000000000000000000000000000000000000000000000000000000000000A2":"300802020091020200A2":0
ECDSA Raw -> DER, 256bit, Invalid raw signature (r 1 byte shorter)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA Raw -> DER, 256bit, Invalid raw signature (r and s 1 byte shorter)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"1111111111111111111111111111111111111111111111111111111111111122222222222222222222222222222222222222222222222222222222222222":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA Raw -> DER, 256bit, Invalid raw signature (r 1 byte longer)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"1111111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA Raw -> DER, 256bit, Invalid raw signature (r and s 1 byte longer)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der:256:"111111111111111111111111111111111111111111111111111111111111111111222222222222222222222222222222222222222222222222222222222222222222":"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Success
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":0
ECDSA DER -> Raw, 256bit, Raw buffer too small
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"111111111111111111111111111111111111111111111111111111111111111122222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_BUF_TOO_SMALL
ECDSA DER -> Raw, 256bit, Wrong sequence tag
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"40440220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
ECDSA DER -> Raw, 256bit, Invalid sequence length
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30ff0220111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_LENGTH
ECDSA DER -> Raw, 256bit, Wrong integer tag
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440120111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
ECDSA DER -> Raw, 256bit, Wrong r integer length (1 byte smaller than the actual size)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440219111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_UNEXPECTED_TAG
ECDSA DER -> Raw, 256bit, Wrong r integer length (1 byte larger than the actual size)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440221111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Wrong s integer length (1 byte smaller than the actual size)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220111111111111111111111111111111111111111111111111111111111111111102192222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_LENGTH_MISMATCH
ECDSA DER -> Raw, 256bit, Wrong s integer length (1 byte larger than the actual size)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220111111111111111111111111111111111111111111111111111111111111111102212222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_OUT_OF_DATA
ECDSA DER -> Raw, 256bit, r size 1 byte larger than allowed for output raw coordinate
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"3045022111111111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, r with MSb set
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"3045022100911111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"91111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":0
ECDSA DER -> Raw, 256bit, Invalid r all zeros
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220000000000000000000000000000000000000000000000000000000000000000002202222222222222222222222222222222222222222222222222222222222222222":"00000000000000000000000000000000000000000000000000000000000000002222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Invalid s all zeros
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220111111111111111111111111111111111111111111111111111111111111111102200000000000000000000000000000000000000000000000000000000000000000":"11111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Valid r only 1 zero byte
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"302502010002202222222222222222222222222222222222222222222222222222222222222222":"00000000000000000000000000000000000000000000000000000000000000002222222222222222222222222222222222222222222222222222222222222222":0
ECDSA DER -> Raw, 256bit, Valid s only 1 zero byte
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"302502201111111111111111111111111111111111111111111111111111111111111111020100":"11111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000":0
ECDSA DER -> Raw, 256bit, Invalid 0-length r
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"3024020002202222222222222222222222222222222222222222222222222222222222222222":"00000000000000000000000000000000000000000000000000000000000000002222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Invalid 0-length s
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"3024022011111111111111111111111111111111111111111111111111111111111111110200":"11111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Invalid r 2 leading zeros
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"3027020300000102202222222222222222222222222222222222222222222222222222222222222222":"00000000000000000000000000000000000000000000000000000000000000002222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Invalid s 2 leading zeros
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"3027022011111111111111111111111111111111111111111111111111111111111111110203000001":"11111111111111111111111111111111111111111111111111111111111111110000000000000000000000000000000000000000000000000000000000000000":MBEDTLS_ERR_ASN1_INVALID_DATA
ECDSA DER -> Raw, 256bit, Invalid r: MSb set without leading zero
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_der_to_raw:256:"30440220911111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222":"11111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":MBEDTLS_ERR_ASN1_INVALID_DATA
# 512/521 bit sizes are useful to test sequence's length encoded with 2 bytes.
ECDSA Raw -> DER, 512bit, Success
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 512
ecdsa_raw_to_der:512:"1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111122222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":"308184024011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111024022222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":0
# 512/521 bit sizes are useful to test sequence's length encoded with 2 bytes.
ECDSA DER -> Raw, 512bit, Success
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 512
ecdsa_der_to_raw:512:"308184024011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111024022222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":"1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111122222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":0
# 512/521 bit sizes are useful to test sequence's length encoded with 2 bytes.
ECDSA Raw -> DER, 521bit, Success
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 521
ecdsa_raw_to_der:521:"011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111012222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":"30818802420111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110242012222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":0
# 512/521 bit sizes are useful to test sequence's length encoded with 2 bytes.
ECDSA DER -> Raw, 521bit, Success
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 521
ecdsa_der_to_raw:521:"30818802420111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110242012222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":"011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111012222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":0
ECDSA Raw -> DER, 256bit, Incremental DER buffer sizes
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der_incremental:256:"91111111111111111111111111111111111111111111111111111111111111112222222222222222222222222222222222222222222222222222222222222222":"3045022100911111111111111111111111111111111111111111111111111111111111111102202222222222222222222222222222222222222222222222222222222222222222"
ECDSA Raw -> DER, 512bit, Incremental DER buffer sizes
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 512
ecdsa_raw_to_der_incremental:512:"9111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111122222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":"30818502410091111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111024022222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222"
ECDSA Raw -> DER, 521bit, Incremental DER buffer sizes
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 521
ecdsa_raw_to_der_incremental:521:"011111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111012222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222":"30818802420111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111110242012222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222"
ECDSA Raw -> DER, 256bit, DER buffer of minimal length (1 byte per integer)
depends_on:PSA_VENDOR_ECC_MAX_CURVE_BITS >= 256
ecdsa_raw_to_der_incremental:256:"00000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002":"3006020101020102"

91
tests/suites/test_suite_psa_crypto_util.function Normal file
View File

@@ -0,0 +1,91 @@
/* BEGIN_HEADER */
#include <test/helpers.h>
#include <mbedtls/psa_util.h>
/* END_HEADER */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_UTIL_HAVE_ECDSA */
void ecdsa_raw_to_der(int key_bits, data_t *input, data_t *exp_result, int exp_ret)
{
unsigned char *tmp_buf = NULL;
size_t tmp_buf_len = exp_result->len;
size_t ret_len;
TEST_CALLOC(tmp_buf, tmp_buf_len);
TEST_EQUAL(mbedtls_ecdsa_raw_to_der(key_bits, input->x, input->len,
tmp_buf, tmp_buf_len, &ret_len), exp_ret);
if (exp_ret == 0) {
ASSERT_COMPARE(exp_result->x, exp_result->len, tmp_buf, ret_len);
}
exit:
mbedtls_free(tmp_buf);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_UTIL_HAVE_ECDSA */
void ecdsa_raw_to_der_incremental(int key_bits, data_t *input, data_t *exp_result)
{
unsigned char *tmp_buf = NULL;
size_t ret_len;
size_t i;
/* Test with an output buffer smaller than required (expexted to fail). */
for (i = 1; i < exp_result->len; i++) {
TEST_CALLOC(tmp_buf, i);
TEST_ASSERT(mbedtls_ecdsa_raw_to_der(key_bits, input->x, input->len,
tmp_buf, i, &ret_len) != 0);
mbedtls_free(tmp_buf);
tmp_buf = NULL;
}
/* Test with an output buffer larger/equal than required (expexted to
* succeed). */
for (i = exp_result->len; i < (2 * exp_result->len); i++) {
TEST_CALLOC(tmp_buf, i);
TEST_ASSERT(mbedtls_ecdsa_raw_to_der(key_bits, input->x, input->len,
tmp_buf, i, &ret_len) == 0);
mbedtls_free(tmp_buf);
tmp_buf = NULL;
}
exit:
mbedtls_free(tmp_buf);
}
/* END_CASE */
/* BEGIN_CASE depends_on:MBEDTLS_PSA_UTIL_HAVE_ECDSA */
void ecdsa_der_to_raw(int key_bits, data_t *input, data_t *exp_result, int exp_ret)
{
unsigned char *in_buf = NULL;
size_t in_buf_len;
unsigned char *out_buf = NULL;
size_t out_buf_len = exp_result->len;
size_t ret_len;
TEST_CALLOC(out_buf, out_buf_len);
/* Verify that parsing of truncated input always fails. */
for (in_buf_len = 1; in_buf_len < input->len; in_buf_len++) {
/* We alloc a copy of input buffer with limited length so that sanitizers
* can detect overreads. */
TEST_CALLOC(in_buf, in_buf_len);
memcpy(in_buf, input->x, in_buf_len);
TEST_ASSERT(mbedtls_ecdsa_der_to_raw(key_bits, in_buf, in_buf_len,
out_buf, out_buf_len, &ret_len) != 0);
mbedtls_free(in_buf);
in_buf = NULL;
}
TEST_EQUAL(mbedtls_ecdsa_der_to_raw(key_bits, input->x, input->len,
out_buf, out_buf_len, &ret_len), exp_ret);
if (exp_ret == 0) {
ASSERT_COMPARE(exp_result->x, exp_result->len, out_buf, ret_len);
}
exit:
mbedtls_free(in_buf);
mbedtls_free(out_buf);
}
/* END_CASE */