widevine-partner/media_cas_packager_sdk_source
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Add EMMG to carry fingerprinting and service blocking info

Browse Source
This commit is contained in:
Lu Chen
2020-09-15 09:16:59 -07:00
parent 3d8f585313
commit 1ce468e5ba
143 changed files with 2316 additions and 17450 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
common/ec_key.cc
View File

@@ -143,39 +143,6 @@ bool ECPrivateKey::DeriveSharedSessionKey(
return true;
}
bool ECPrivateKey::GenerateSignature(const std::string& message,
std::string* signature) const {
if (message.empty()) {
LOG(ERROR) << "|message| cannot be empty";
return false;
}
if (signature == nullptr) {
LOG(ERROR) << "|signature| cannot be nullptr";
return false;
}
std::string message_digest = Sha256_Hash(message);
size_t max_signature_size = ECDSA_size(key());
if (max_signature_size == 0) {
LOG(ERROR) << "key_ does not have a group set";
return false;
}
signature->resize(max_signature_size);
unsigned int bytes_written = 0;
int result = ECDSA_sign(
0 /* unused type */,
reinterpret_cast<const uint8_t*>(message_digest.data()),
message_digest.size(),
reinterpret_cast<uint8_t*>(const_cast<char*>(signature->data())),
&bytes_written, key());
if (result != 1) {
LOG(ERROR) << "Could not calculate signature: "
<< OpenSSLErrorString(ERR_get_error());
return false;
}
signature->resize(bytes_written);
return true;
}
bool ECPrivateKey::GenerateSignature(const std::string& message,
HashAlgorithm hash_algorithm,
std::string* signature) const {
@@ -287,31 +254,6 @@ std::unique_ptr<ECPublicKey> ECPublicKey::CreateFromKeyPoint(
return absl::make_unique<ECPublicKey>(scoped_ec_key.release());
}
bool ECPublicKey::VerifySignature(const std::string& message,
const std::string& signature) const {
if (message.empty()) {
LOG(ERROR) << "|message| cannot be empty";
return false;
}
if (signature.empty()) {
LOG(ERROR) << "|signature| cannot be empty";
return false;
}
std::string message_digest = Sha256_Hash(message);
int result = ECDSA_verify(
0 /* unused type */,
reinterpret_cast<const uint8_t*>(message_digest.data()),
message_digest.size(),
reinterpret_cast<uint8_t*>(const_cast<char*>(signature.data())),
signature.size(), key());
if (result != 1) {
LOG(ERROR) << "Could not verify signature: "
<< OpenSSLErrorString(ERR_get_error());
return false;
}
return true;
}
bool ECPublicKey::VerifySignature(const std::string& message,
HashAlgorithm hash_algorithm,
const std::string& signature) const {