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

Hash OEM Certificate

Browse Source 
(This is a merge of wvgerrit/25582)

Provisioning 3.0 devices that do not use SPOIDs have been returning
their full OEM Public Certificate as their device ID. While this is not
a security concern, (it is a PUBLIC cert) the cert is many times larger
than applications are likely expecting. (several kilobytes vs. just a
few bytes) This patch hashes the OEM Public Certificate to produce a
smaller value, but only when it is being provided out of the CDM to a
caller.

Bug: 34716264
Test: run_all_unit_tests.sh
Change-Id: Ib82cf7a174a8bf02ff606edd0394ada13842224c
This commit is contained in:
John W. Bruce
2017-04-11 11:57:57 -07:00
parent c0a7655834
commit 8513b71499
5 changed files with 30 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
libwvdrmengine/cdm/core/include/crypto_session.h
View File

@@ -43,7 +43,8 @@ class CryptoSession {
return pre_provision_token_type_;
}
virtual CdmSecurityLevel GetSecurityLevel();
virtual bool GetDeviceUniqueId(std::string* device_id);
virtual bool GetInternalDeviceUniqueId(std::string* device_id);
virtual bool GetExternalDeviceUniqueId(std::string* device_id);
virtual bool GetApiVersion(uint32_t* version);
virtual bool GetSystemId(uint32_t* system_id);
virtual bool GetProvisioningId(std::string* provisioning_id);