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wolfTPM
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Merge pull request #182 from dgarske/cred_fread 

Fix for compiler warning for file read in make_credential.c
pull/183/head
elms 2021-07-22 13:17:42 -07:00 committed by GitHub
parent 3e355bfff2 54d3fea42b
commit 1a7865038a
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GPG Key ID: 4AEE18F83AFDEB23
3 changed files with 15 additions and 13 deletions
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21
examples/attestation/README.md
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@ -52,8 +52,10 @@ TPM2.0 Key generation example
Loading SRK: Storage 0x81000200 (282 bytes)
RSA AIK template
Creating new RSA key...
Created new key (pub 280, priv 222 bytes)
New key created and loaded (pub 280, priv 222 bytes)
Wrote 508 bytes to keyblob.bin
Wrote 288 bytes to srk.pub
Wrote AK Name digest
```
### Make Credential Example Usage
@ -62,15 +64,16 @@ Using the `make_credential` example an attestation server can generate remote at
```
$ ./examples/attestation/make_credential
Using default values
Demo how to create a credential blob for remote attestation
wolfTPM2_Init: success
Using public key from SRK to create the challenge
Demo how to create a credential challenge for remote attestation
Credential will be stored in cred.blob
Reading 508 bytes from keyblob.bin
wolfTPM2_Init: success
Reading 288 bytes from srk.pub
Reading the private part of the key
AK loaded at 0x80000001
Public key for encryption loaded
Read AK Name digest success
TPM2_MakeCredential success
Wrote credential blob and secret to cred.blob, 514 bytes
Wrote credential blob and secret to cred.blob, 648 bytes
```
The transfer of the PAK and AK public parts between the client and attestation server is not part of the `make_credential` example, because the exchange is implementation specific.
@ -90,9 +93,7 @@ SRK loaded
Reading 508 bytes from keyblob.bin
Reading the private part of the key
AK loaded at 0x80000001
TPM2_StartAuthSession: sessionHandle 0x3000000
TPM2_policyCommandCode success
Read credential blob and secret from cred.blob, 514 bytes
Read credential blob and secret from cred.blob, 648 bytes
TPM2_ActivateCredential success
```

5
examples/attestation/make_credential.c
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@ -145,8 +145,9 @@ int TPM2_MakeCredential_Example(void* userCtx, int argc, char *argv[])
/* Load AK Name digest */
fp = XFOPEN("ak.name", "rb");
if (fp != XBADFILE) {
XFREAD((BYTE*)&name, 1, sizeof(name), fp);
printf("Read AK Name digest\n");
size_t nameReadSz = XFREAD((BYTE*)&name, 1, sizeof(name), fp);
printf("Read AK Name digest %s\n",
nameReadSz == sizeof(name) ? "success" : "failed");
XFCLOSE(fp);
}
#endif

2
examples/native/native_test.c
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@ -733,7 +733,7 @@ int TPM2_Native_TestArgs(void* userCtx, int argc, char *argv[])
XMEMCPY(session[0].auth.buffer, storagePwd, session[0].auth.size);
/* Create a loaded new TPM 2.0 key and then unload it */
XMEMSET(&cmdIn.createLoaded, 0, sizeof(cmdOut.createLoaded));
XMEMSET(&cmdIn.createLoaded, 0, sizeof(cmdIn.createLoaded));
cmdIn.createLoaded.parentHandle = storage.handle;
cmdIn.createLoaded.inSensitive.sensitive.userAuth.size = sizeof(usageAuth)-1;
XMEMCPY(cmdIn.createLoaded.inSensitive.sensitive.userAuth.buffer, usageAuth,