WolfSSL
/
wolfTPM
mirror of https://github.com/wolfSSL/wolfTPM.git
1
0
Fork 0
Code Issues Releases Wiki Activity

F-2982 - https://fenrir.wolfssl.com/finding/2982 - Add known-answer unit test for TPM2_HashNvPublic

pull/481/head
Aidan Garske 2026-04-14 15:46:00 -07:00
parent 9cec95ffea
commit cd63015325
1 changed files with 46 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
tests/unit_tests.c
View File

@ -1654,6 +1654,51 @@ static void test_TPM2_ParamEncDec_Dispatch_Roundtrip(void)
#endif
}
/* Known-answer test for TPM2_HashNvPublic serialization and hashing.
* Reference: independently computed SHA-256 over the marshaled NV public
* area fields in TPM 2.0 canonical order. */
static void test_TPM2_HashNvPublic(void)
{
#ifndef WOLFTPM2_NO_WOLFCRYPT
int rc;
TPMS_NV_PUBLIC nvPublic;
byte nameBuffer[2 + WC_MAX_DIGEST_SIZE];
UINT16 nameSize = 0;
/* Expected Name: nameAlg(BE) || SHA256(nvIndex||nameAlg||attributes||
* authPolicy.size||dataSize) */
static const byte expectedName[] = {
0x00, 0x0b, 0x95, 0x61, 0x47, 0xe5, 0x81, 0xbd, 0xe0, 0xad, 0x4d, 0x95,
0x83, 0x8d, 0x2c, 0x6b, 0x7b, 0xa5, 0x1c, 0xc0, 0xad, 0x56, 0xd8, 0xec,
0xb7, 0x30, 0x24, 0xfa, 0x34, 0xb9, 0x95, 0x8f, 0xee, 0x45
};
XMEMSET(&nvPublic, 0, sizeof(nvPublic));
nvPublic.nvIndex = 0x01500020;
nvPublic.nameAlg = TPM_ALG_SHA256;
nvPublic.attributes = TPMA_NV_AUTHWRITE | TPMA_NV_AUTHREAD | TPMA_NV_NO_DA;
nvPublic.authPolicy.size = 0;
nvPublic.dataSize = 32;
XMEMSET(nameBuffer, 0, sizeof(nameBuffer));
rc = TPM2_HashNvPublic(&nvPublic, nameBuffer, &nameSize);
AssertIntEQ(rc, TPM_RC_SUCCESS);
AssertIntEQ(nameSize, (int)sizeof(expectedName));
AssertIntEQ(0, XMEMCMP(nameBuffer, expectedName, sizeof(expectedName)));
/* Test NULL args */
rc = TPM2_HashNvPublic(NULL, nameBuffer, &nameSize);
AssertIntEQ(rc, BAD_FUNC_ARG);
rc = TPM2_HashNvPublic(&nvPublic, NULL, &nameSize);
AssertIntEQ(rc, BAD_FUNC_ARG);
rc = TPM2_HashNvPublic(&nvPublic, nameBuffer, NULL);
AssertIntEQ(rc, BAD_FUNC_ARG);
printf("Test TPM Wrapper:\tHashNvPublic:\t\tPassed\n");
#else
printf("Test TPM Wrapper:\tHashNvPublic:\t\tSkipped\n");
#endif
}
static void test_GetAlgId(void)
{
TPM_ALG_ID alg = TPM2_GetAlgId("SHA256");
@ -2419,6 +2464,7 @@ int unit_tests(int argc, char *argv[])
test_TPM2_ParamDec_XOR_Roundtrip();
test_TPM2_ParamDec_AESCFB_Roundtrip();
test_TPM2_ParamEncDec_Dispatch_Roundtrip();
test_TPM2_HashNvPublic();
test_GetAlgId();
test_wolfTPM2_ReadPublicKey();
test_wolfTPM2_CSR();