e6b1fedc4c
bug: 8601053
This import syncs to the widevine git repository change
commit 6a99ad1b59ad39495f62954b3065ddc22b78da49
It includes the following changes from the widevine git
repository, which complete the jb-mr2 features
Fix Unit Test Makefile
Adds support for device certificate provisioning.
Support application parameters
Certificate based licensing
Proto for client files
Implement Property Query API
Add Device Query For Unique ID
Implement Generic Crypto in DrmEngine
Do not validate Key IDs on clear playback
Allow OEMCrypto_DecryptCTR with clear content and no key
Add a case to the MediaDrm API test to repro b/8594163
Implement requiresSecureDecoderComponent
Implement Eventing API
Add end-to-end decryption test with vectors
Refactoring of properties class
Refactor OEMCrypto unittest.
Fix for b/8567853: License renewal doesn't renew license.
Add KEY_ERROR callback to WvContentDecryptionModule() ctor.
Merged certificate_provisioning.proto and
client_identification.proto to license_protocol.proto.
Fix nonce check failure after a malformed key in OEC Mock.
asynchronize decryption
Allow querying of control information
make debugging AddKey & Decrypt statuses easier
Revert "Revert "Send KEY_ERROR event to app on license
expiration or failure""
Revert "Send KEY_ERROR event to app on license expiration
or failure"
Send KEY_ERROR event to app on license expiration or failure
remove extra session id copy
use KeyError constants directly
replace variable-length arrays with std::vector and fixed-sized array
pass session ids as const references
refactor key extraction and update keys on renewal
Updates to enable renewals and signaling license expiration.
fix error constant in OEMCrypto_DecryptCTR
Change-Id: I5f7236c7bdff1d5ece6115fd2893f8a1e1e07c50
103 lines
3.4 KiB
C++
103 lines
3.4 KiB
C++
// Copyright 2012 Google Inc. All Rights Reserved.
|
|
//
|
|
// OEMCrypto Client - wrapper class for C-style OEMCrypto interface
|
|
//
|
|
#ifndef CDM_BASE_CRYPTO_SESSSION_H_
|
|
#define CDM_BASE_CRYPTO_SESSSION_H_
|
|
|
|
#include <string>
|
|
#include <map>
|
|
|
|
#include "crypto_key.h"
|
|
#include "OEMCryptoCENC.h"
|
|
#include "wv_cdm_types.h"
|
|
|
|
namespace wvcdm {
|
|
|
|
typedef std::map<CryptoKeyId,CryptoKey*> CryptoKeyMap;
|
|
|
|
class CryptoSession {
|
|
public:
|
|
CryptoSession();
|
|
explicit CryptoSession(const std::string& sname);
|
|
~CryptoSession();
|
|
|
|
bool Open();
|
|
void Close();
|
|
|
|
bool IsValid() { return valid_; }
|
|
bool IsOpen() { return open_; }
|
|
bool SuccessStatus();
|
|
CryptoResult session_status() { return session_status_; }
|
|
CryptoSessionId oec_session_id() { return oec_session_id_; }
|
|
CdmSessionId cdm_session_id() { return cdm_session_id_; }
|
|
|
|
// Key request/response
|
|
void GenerateRequestId(std::string& req_id_str);
|
|
bool PrepareRequest(const std::string& key_deriv_message,
|
|
std::string* signature);
|
|
bool PrepareRenewalRequest(const std::string& message,
|
|
std::string* signature);
|
|
bool LoadKeys(const std::string& message,
|
|
const std::string& signature,
|
|
const std::string& mac_key_iv,
|
|
const std::string& mac_key,
|
|
int num_keys,
|
|
const CryptoKey* key_array);
|
|
bool LoadCertificatePrivateKey(std::string& wrapped_key);
|
|
bool RefreshKeys(const std::string& message,
|
|
const std::string& signature,
|
|
int num_keys,
|
|
const CryptoKey* key_array);
|
|
bool GenerateNonce(uint32_t* nonce);
|
|
bool GenerateDerivedKeys(const std::string& message);
|
|
bool GenerateDerivedKeys(const std::string& message,
|
|
const std::string& session_key);
|
|
bool GenerateSignature(const std::string& message,
|
|
std::string* signature);
|
|
bool RewrapDeviceRSAKey(const std::string& message,
|
|
const uint32_t* nonce,
|
|
const uint8_t* enc_rsa_key,
|
|
size_t enc_rsa_key_length,
|
|
const uint8_t* enc_rsa_key_iv,
|
|
uint8_t* wrapped_rsa_key,
|
|
size_t* wrapped_rsa_key_length);
|
|
|
|
// Media data path
|
|
bool SelectKey(const std::string& key_id);
|
|
CdmResponseType Decrypt(bool is_encrypted,
|
|
const uint8_t* encrypt_buffer,
|
|
size_t encrypt_length,
|
|
const std::vector<uint8_t>& iv,
|
|
size_t block_offset,
|
|
void* decrypt_buffer,
|
|
bool is_video);
|
|
|
|
private:
|
|
static const size_t kSignatureSize = 32; // size for HMAC-SHA256 signature
|
|
|
|
void GenerateMacContext(const std::string& input_context,
|
|
std::string* deriv_context);
|
|
void GenerateEncryptContext(const std::string& input_context,
|
|
std::string* deriv_context);
|
|
size_t GetOffset(std::string message, std::string field);
|
|
bool SetDestinationBufferType();
|
|
|
|
bool valid_;
|
|
bool open_;
|
|
CdmSessionId cdm_session_id_;
|
|
CryptoSessionId oec_session_id_;
|
|
CryptoResult session_status_;
|
|
|
|
OEMCryptoBufferType destination_buffer_type_;
|
|
bool is_destination_buffer_type_valid_;
|
|
|
|
CryptoKeyMap keys_;
|
|
|
|
CORE_DISALLOW_COPY_AND_ASSIGN(CryptoSession);
|
|
};
|
|
|
|
}; // namespace wvcdm
|
|
|
|
#endif // CDM_BASE_CRYPTO_SESSSION_H_
|