/**
* Verifies a MAR file by verifying each signature with the corresponding
* certificate. That is, the first signature will be verified using the first
* certificate given, the second signature will be verified using the second
* certificate given, etc. The signature count must exactly match the number of
* certificates given, and all signature verifications must succeed.
*
* @param mar The file who's signature should be calculated
* @param certData Pointer to the first element in an array of
* certificate data
* @param certDataSizes Pointer to the first element in an array for size of
* the data stored
* @param certCount The number of elements in certData and certDataSizes
* @return 0 on success
*/
int
mar_verify_signatures(MarFile *mar,
const uint8_t * const *certData,
const uint32_t *certDataSizes,
uint32_t certCount) {
int rv = -1;
CryptoX_ProviderHandle provider = CryptoX_InvalidHandleValue;
CryptoX_PublicKey keys[MAX_SIGNATURES];
uint32_t k;
memset(keys, 0, sizeof(keys));
if (!mar || !certData || !certDataSizes || certCount == 0) {
fprintf(stderr, "ERROR: Invalid parameter specified.\n");
goto failure;
}
if (!mar->fp) {
fprintf(stderr, "ERROR: MAR file is not open.\n");
goto failure;
}
if (CryptoX_Failed(CryptoX_InitCryptoProvider(&provider))) {
fprintf(stderr, "ERROR: Could not init crytpo library.\n");
goto failure;
}
for (k = 0; k < certCount; ++k) {
if (CryptoX_Failed(CryptoX_LoadPublicKey(provider, certData[k], certDataSizes[k],
&keys[k]))) {
fprintf(stderr, "ERROR: Could not load public key.\n");
goto failure;
}
}
rv = mar_extract_and_verify_signatures_fp(mar->fp, provider, keys, certCount);
failure:
for (k = 0; k < certCount; ++k) {
if (keys[k]) {
CryptoX_FreePublicKey(&keys[k]);
}
}
return rv;
}
/**
* Verifies the embedded signature of the specified file path.
* This is only used by the signmar program when used with arguments to verify
* a MAR. This should not be used to verify a MAR that will be extracted in the
* same operation by updater code. This function prints the error message if
* verification fails.
*
* @param pathToMAR The path of the MAR file who's signature should be checked
* @param certData The certificate file data.
* @param sizeOfCertData The size of the cert data.
* @param certName Used only if compiled as NSS, specifies the certName
* @return 0 on success
* a negative number if there was an error
* a positive number if the signature does not verify
*/
int
mar_verify_signature(const char *pathToMARFile,
const char *certData,
PRUint32 sizeOfCertData,
const char *certName) {
int rv;
CryptoX_ProviderHandle provider = CryptoX_InvalidHandleValue;
CryptoX_Certificate cert;
CryptoX_PublicKey key;
FILE *fp;
if (!pathToMARFile || (!certData && !certName)) {
fprintf(stderr, "ERROR: Invalid parameter specified.\n");
return CryptoX_Error;
}
fp = fopen(pathToMARFile, "rb");
if (!fp) {
fprintf(stderr, "ERROR: Could not open MAR file.\n");
return CryptoX_Error;
}
if (CryptoX_Failed(CryptoX_InitCryptoProvider(&provider))) {
fclose(fp);
fprintf(stderr, "ERROR: Could not init crytpo library.\n");
return CryptoX_Error;
}
if (CryptoX_Failed(CryptoX_LoadPublicKey(provider, certData, sizeOfCertData,
&key, certName, &cert))) {
fclose(fp);
fprintf(stderr, "ERROR: Could not load public key.\n");
return CryptoX_Error;
}
rv = mar_verify_signature_fp(fp, provider, key);
fclose(fp);
if (key) {
CryptoX_FreePublicKey(&key);
}
if (cert) {
CryptoX_FreeCertificate(&cert);
}
return rv;
}
/**
* Verifies a MAR file's signature by making sure at least one
* signature verifies.
*
* @param pathToMARFile The path of the MAR file who's signature
* should be calculated
* @param certData The certificate data
* @param sizeOfCertData The size of the data stored in certData
* @return 0 on success
*/
int
mar_verify_signatureW(MarFile *mar,
const char *certData,
PRUint32 sizeOfCertData) {
int rv;
CryptoX_ProviderHandle provider = CryptoX_InvalidHandleValue;
CryptoX_Certificate cert;
CryptoX_PublicKey key;
if (!mar || !certData) {
fprintf(stderr, "ERROR: Invalid parameter specified.\n");
return CryptoX_Error;
}
if (!mar->fp) {
fprintf(stderr, "ERROR: MAR file is not open.\n");
return CryptoX_Error;
}
if (CryptoX_Failed(CryptoX_InitCryptoProvider(&provider))) {
fprintf(stderr, "ERROR: Could not init crytpo library.\n");
return CryptoX_Error;
}
if (CryptoX_Failed(CryptoX_LoadPublicKey(provider, certData, sizeOfCertData,
&key, "", &cert))) {
fprintf(stderr, "ERROR: Could not load public key.\n");
return CryptoX_Error;
}
rv = mar_verify_signature_fp(mar->fp, provider, key);
if (key) {
CryptoX_FreePublicKey(&key);
}
if (cert) {
CryptoX_FreeCertificate(&cert);
}
return rv;
}
