Add AES-ECB as a supported encryption mode in ECMG

This commit is contained in:
Widevine Buildbot
2021-09-08 01:20:50 +00:00
parent 8818d7d026
commit bcba6a0393
12 changed files with 17 additions and 2 deletions

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@@ -18,6 +18,7 @@
#include "absl/synchronization/mutex.h"
#include "common/hash_algorithm.h"
#include "common/output_protection_util.h"
#include "common/status.h"
#include "protos/public/client_identification.pb.h"
#include "protos/public/device_security_profile_data.pb.h"
@@ -26,6 +27,7 @@
#include "protos/public/security_profile.pb.h"
namespace widevine {
using ClientCapabilities = ClientIdentification::ClientCapabilities;
const char kDefaultProfileOwnerName[] = "Widevine";
@@ -56,13 +58,16 @@ class SecurityProfileList {
const std::vector<std::string>& profiles_to_check,
const std::string& owner, const ClientIdentification& client_id,
const ProvisionedDeviceInfo& device_info,
PlatformVerificationStatus device_vmp_status,
std::vector<std::string>* qualified_profiles) const;
// Populates |profiles_to_allow| with a list of profiles that meet the
// requirements for the this device. The number of profiles is returned.
virtual int GetQualifiedProfiles(
const ClientIdentification& client_id,
const ProvisionedDeviceInfo& device_info, const std::string& owner,
const ProvisionedDeviceInfo& device_info,
const PlatformVerificationStatus device_vmp_status,
const std::string& owner,
std::vector<std::string>* qualified_profiles) const;
// Return true if a profile exist matching the specified parameters {|name|,
@@ -121,6 +126,8 @@ class SecurityProfileList {
void ClearAllProfiles();
private:
friend class SecurityProfileListTest;
// Add Widevine default profiles into profile_list. The number of added
// default profiles will be returned.
virtual int AddDefaultProfiles();
@@ -133,7 +140,8 @@ class SecurityProfileList {
bool DoesProfileQualify(const SecurityProfile& profile,
const ClientIdentification& client_id,
const ProvisionedDeviceInfo& device_info) const;
const ProvisionedDeviceInfo& device_info,
PlatformVerificationStatus device_vmp_status) const;
int64_t GetCurrentTimeSeconds() const;
@@ -149,6 +157,10 @@ class SecurityProfileList {
void ClearAllDefaultProfilesLocked() ABSL_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
void ClearAllCustomProfilesLocked() ABSL_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
// Return true is the client is a Chrome browser.
virtual bool IsChromeBrowser(const std::string& device_model) const;
mutable absl::Mutex mutex_;
// Security profiles
std::string profile_namespace_;

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@@ -30,6 +30,7 @@ enum class CryptoMode : int {
kDvbCsa3 = 3,
kAesOfb = 4,
kAesScte = 5,
kAesEcb = 6,
};
enum class ScramblingLevel : int { kPES = 0, kTS = 1 };

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@@ -71,6 +71,7 @@ message EcmMetaData {
DVB_CSA3 = 4;
AES_OFB = 5;
AES_SCTE52 = 6;
AES_ECB = 7;
}
// Required. The cipher mode used to encrypt/decrypt the content.
optional CipherMode cipher_mode = 1;

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@@ -61,6 +61,7 @@ message CasEncryptionResponse {
// Optional label used for the key.
optional string track_type = 3;
optional KeySlot key_slot = 4;
optional uint32 period_index = 5;
}
optional Status status = 1;
optional string status_message = 2;