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Fix silabs_ecc_export_public to set the signing only flag. Added tests cases for import of private and public only verify in the SiLabs example.

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This commit is contained in:
David Garske
2023-07-07 08:25:46 -07:00
parent caa0e5aabf
commit abe1bce914
2 changed files with 74 additions and 5 deletions
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76
IDE/SimplicityStudio/test_wolf.c
View File

@ -91,16 +91,72 @@ void wolf_bench(sl_cli_command_arg_t *arguments)
#define TEST_DATA_SIZE 128
#define TEST_KEYGEN_TRIES 100
#define TEST_ECDSA_TRIES 100
/* #define TEST_VERIFY_ONLY */
/* #define TEST_PRIVATE_IMPORT */
void wolf_ecc_test(sl_cli_command_arg_t *arguments)
{
int ret = 0, i, j;
byte data[TEST_DATA_SIZE];
word32 dataLen = (word32)sizeof(data);
byte sig[ECC_MAX_SIG_SIZE];
word32 sigLen;
WC_RNG rng;
ecc_key eccKey;
word32 inOutIdx;
#ifdef TEST_PRIVATE_IMPORT
/* ./certs/ecc-client-key.der, ECC */
const unsigned char ecc_clikey_der_256[] = {
0x30, 0x77, 0x02, 0x01, 0x01, 0x04, 0x20, 0xF8, 0xCF, 0x92,
0x6B, 0xBD, 0x1E, 0x28, 0xF1, 0xA8, 0xAB, 0xA1, 0x23, 0x4F,
0x32, 0x74, 0x18, 0x88, 0x50, 0xAD, 0x7E, 0xC7, 0xEC, 0x92,
0xF8, 0x8F, 0x97, 0x4D, 0xAF, 0x56, 0x89, 0x65, 0xC7, 0xA0,
0x0A, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D, 0x03, 0x01,
0x07, 0xA1, 0x44, 0x03, 0x42, 0x00, 0x04, 0x55, 0xBF, 0xF4,
0x0F, 0x44, 0x50, 0x9A, 0x3D, 0xCE, 0x9B, 0xB7, 0xF0, 0xC5,
0x4D, 0xF5, 0x70, 0x7B, 0xD4, 0xEC, 0x24, 0x8E, 0x19, 0x80,
0xEC, 0x5A, 0x4C, 0xA2, 0x24, 0x03, 0x62, 0x2C, 0x9B, 0xDA,
0xEF, 0xA2, 0x35, 0x12, 0x43, 0x84, 0x76, 0x16, 0xC6, 0x56,
0x95, 0x06, 0xCC, 0x01, 0xA9, 0xBD, 0xF6, 0x75, 0x1A, 0x42,
0xF7, 0xBD, 0xA9, 0xB2, 0x36, 0x22, 0x5F, 0xC7, 0x5D, 0x7F,
0xB4
};
const int sizeof_ecc_clikey_der_256 = sizeof(ecc_clikey_der_256);
#endif
#ifdef TEST_VERIFY_ONLY
/* ./certs/ecc-client-keyPub.der, ECC */
const unsigned char ecc_clikeypub_der_256[] = {
0x30, 0x59, 0x30, 0x13, 0x06, 0x07, 0x2A, 0x86, 0x48, 0xCE,
0x3D, 0x02, 0x01, 0x06, 0x08, 0x2A, 0x86, 0x48, 0xCE, 0x3D,
0x03, 0x01, 0x07, 0x03, 0x42, 0x00, 0x04, 0x55, 0xBF, 0xF4,
0x0F, 0x44, 0x50, 0x9A, 0x3D, 0xCE, 0x9B, 0xB7, 0xF0, 0xC5,
0x4D, 0xF5, 0x70, 0x7B, 0xD4, 0xEC, 0x24, 0x8E, 0x19, 0x80,
0xEC, 0x5A, 0x4C, 0xA2, 0x24, 0x03, 0x62, 0x2C, 0x9B, 0xDA,
0xEF, 0xA2, 0x35, 0x12, 0x43, 0x84, 0x76, 0x16, 0xC6, 0x56,
0x95, 0x06, 0xCC, 0x01, 0xA9, 0xBD, 0xF6, 0x75, 0x1A, 0x42,
0xF7, 0xBD, 0xA9, 0xB2, 0x36, 0x22, 0x5F, 0xC7, 0x5D, 0x7F,
0xB4
};
const int sizeof_ecc_clikeypub_der_256 = sizeof(ecc_clikeypub_der_256);
/* Signature for hash of 128-bytes data 0,1,2.... */
const byte sig[] = {
0x30, 0x45,
0x02, 0x20,
0x5e, 0x01, 0x3d, 0xfb, 0x18, 0x61, 0xe3, 0xe3,
0xa0, 0xff, 0x9b, 0x99, 0xb5, 0x2f, 0x89, 0xba,
0xb3, 0xbb, 0x62, 0x08, 0x9b, 0x94, 0x0e, 0x61,
0x9c, 0x00, 0x7b, 0x43, 0x9c, 0x28, 0xcb, 0xf6,
0x02, 0x21,
0x00,
0xb4, 0x72, 0x2f, 0x22, 0x92, 0xa2, 0x8d, 0x01,
0x6b, 0x01, 0x35, 0x5c, 0xcb, 0x34, 0xa2, 0x21,
0x32, 0xe2, 0xe6, 0x66, 0xd0, 0x9e, 0x3e, 0x8e,
0x84, 0x5d, 0xa4, 0x69, 0x54, 0x52, 0xfc, 0xef
};
word32 sigLen = (word32)sizeof(sig);
#else
byte sig[ECC_MAX_SIG_SIZE];
word32 sigLen;
#endif
memset(&rng, 0, sizeof(rng));
memset(&eccKey, 0, sizeof(eccKey));
@ -122,17 +178,28 @@ void wolf_ecc_test(sl_cli_command_arg_t *arguments)
for (i=0; i<TEST_KEYGEN_TRIES; i++) {
ret = wc_ecc_init_ex(&eccKey, NULL, 0);
if (ret == 0) {
#if (_SILICON_LABS_SECURITY_FEATURE == _SILICON_LABS_SECURITY_FEATURE_VAULT)
inOutIdx = 0;
#ifdef TEST_VERIFY_ONLY
ret = wc_EccPublicKeyDecode(ecc_clikeypub_der_256, &inOutIdx,
&eccKey, sizeof_ecc_clikeypub_der_256);
#else
#if (defined(_SILICON_LABS_SECURITY_FEATURE) && \
_SILICON_LABS_SECURITY_FEATURE == _SILICON_LABS_SECURITY_FEATURE_VAULT)
/* Load ecc_key with vault's public key.
* When only the public area of a key is loaded silabs_ecc.c
* (silabs_ecc_sign_hash) will use the vault key to sign */
ret = silabs_ecc_load_vault(&eccKey);
#else
#elif defined(TEST_PRIVATE_IMPORT)
ret = wc_EccPrivateKeyDecode(ecc_clikey_der_256, &inOutIdx,
&eccKey, sizeof_ecc_clikey_der_256);
#else
ret = wc_ecc_make_key(&rng, TEST_ECC_KEYSZ, &eccKey);
#endif
#endif
}
for (j=0; j<TEST_ECDSA_TRIES; j++) {
#ifndef TEST_VERIFY_ONLY
if (ret == 0) {
/* generate signature using ecc key */
sigLen = (word32)sizeof(sig);
@ -144,6 +211,7 @@ void wolf_ecc_test(sl_cli_command_arg_t *arguments)
&eccKey, (word32)sizeof(eccKey),
&rng);
}
#endif
if (ret == 0) {
ret = wc_SignatureVerify(
WC_HASH_TYPE_SHA256, WC_SIGNATURE_TYPE_ECC,

3
wolfcrypt/src/port/silabs/silabs_ecc.c
View File

@ -328,7 +328,8 @@ int silabs_ecc_export_public(ecc_key* key, sl_se_key_descriptor_t* seKey)
key->key.type = seKey->type;
key->key.size = key->dp->size;
key->key.storage.method = SL_SE_KEY_STORAGE_EXTERNAL_PLAINTEXT;
key->key.flags = (SL_SE_KEY_FLAG_ASYMMETRIC_BUFFER_HAS_PUBLIC_KEY);
key->key.flags = (SL_SE_KEY_FLAG_ASYMMETRIC_BUFFER_HAS_PUBLIC_KEY |
SL_SE_KEY_FLAG_ASYMMETRIC_SIGNING_ONLY);
sl_stat = sl_se_get_storage_size(&key->key,
&key->key.storage.location.buffer.size);