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Add EMMG to carry fingerprinting and service blocking info

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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
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75
common/rsa_key.cc
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@@ -117,41 +117,6 @@ bool RsaPrivateKey::Decrypt(const std::string& encrypted_message,
return true;
}
bool RsaPrivateKey::GenerateSignature(const std::string& message,
std::string* signature) const {
DCHECK(signature);
if (message.empty()) {
LOG(ERROR) << "Message to be signed is empty";
return false;
}
// Hash the message using SHA1.
std::string message_digest = Sha1_Hash(message);
// Add PSS padding.
size_t rsa_size = RSA_size(key_);
std::string padded_digest(rsa_size, 0);
if (!RSA_padding_add_PKCS1_PSS_mgf1(
key_, reinterpret_cast<unsigned char*>(&padded_digest[0]),
reinterpret_cast<unsigned char*>(&message_digest[0]), EVP_sha1(),
EVP_sha1(), kPssSaltLength)) {
LOG(ERROR) << "RSA padding failure: "
<< OpenSSLErrorString(ERR_get_error());
return false;
}
// Encrypt PSS padded digest.
signature->assign(rsa_size, 0);
if (RSA_private_encrypt(padded_digest.size(),
reinterpret_cast<unsigned char*>(&padded_digest[0]),
reinterpret_cast<unsigned char*>(&(*signature)[0]),
key_, RSA_NO_PADDING) !=
static_cast<int>(signature->size())) {
LOG(ERROR) << "RSA private encrypt failure: "
<< OpenSSLErrorString(ERR_get_error());
return false;
}
return true;
}
bool RsaPrivateKey::GenerateSignature(const std::string& message,
HashAlgorithm hash_algorithm,
@@ -270,46 +235,6 @@ bool RsaPublicKey::Encrypt(const std::string& clear_message,
return true;
}
bool RsaPublicKey::VerifySignature(const std::string& message,
const std::string& signature) const {
if (message.empty()) {
LOG(ERROR) << "Signed message is empty";
return false;
}
size_t rsa_size = RSA_size(key_);
if (signature.size() != rsa_size) {
LOG(ERROR) << "Message signature is of the wrong size (expected "
<< rsa_size << ", actual " << signature.size() << ")";
return false;
}
// Decrypt the signature.
std::string padded_digest(signature.size(), 0);
if (RSA_public_decrypt(
signature.size(),
const_cast<unsigned char*>(
reinterpret_cast<const unsigned char*>(signature.data())),
reinterpret_cast<unsigned char*>(&padded_digest[0]), key_,
RSA_NO_PADDING) != static_cast<int>(rsa_size)) {
LOG(ERROR) << "RSA public decrypt failure: "
<< OpenSSLErrorString(ERR_get_error());
return false;
}
// Hash the message using SHA1.
std::string message_digest = Sha1_Hash(message);
// Verify PSS padding.
if (RSA_verify_PKCS1_PSS_mgf1(
key_, reinterpret_cast<unsigned char*>(&message_digest[0]),
EVP_sha1(), EVP_sha1(),
reinterpret_cast<unsigned char*>(&padded_digest[0]),
kPssSaltLength) == 0) {
LOG(ERROR) << "RSA Verify PSS padding failure: "
<< OpenSSLErrorString(ERR_get_error());
return false;
}
return true;
}
bool RsaPublicKey::VerifySignature(const std::string& message,
HashAlgorithm hash_algorithm,
const std::string& signature) const {