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Add AEAD support to Frame Encryption API. Add Contribuitng Source To Decryptor.

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This change allows supporting additional data for authentication and adds a
requirement for the contributing source to be provided during decryption.

Change-Id: Ifc19cb2d8a7d6c3715c83c95cf12f64df0bca454
Bug: webrtc:9681
Reviewed-on: https://webrtc-review.googlesource.com/100001
Reviewed-by: Steve Anton <steveanton@webrtc.org>
Commit-Queue: Benjamin Wright <benwright@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#24712}
This commit is contained in:
Benjamin Wright
2018-09-12 13:29:08 -07:00
committed by Commit Bot
parent 7d687b13ed
commit 1f87ec6813
2 changed files with 10 additions and 5 deletions
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3
api/crypto/frameencryptorinterface.h
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@ -23,7 +23,7 @@ namespace webrtc {
// the receiving device. Note this is an additional layer of encryption in
// addition to the standard SRTP mechanism and is not intended to be used
// without it. Implementations of this interface will have the same lifetime as
// the RTPSenders it is attached to.
// the RTPSenders it is attached to. Additional data may be null.
// Note: This interface is not ready for production use.
class FrameEncryptorInterface : public rtc::RefCountInterface {
public:
@ -38,6 +38,7 @@ class FrameEncryptorInterface : public rtc::RefCountInterface {
// selected by the implementer to represent error codes.
virtual int Encrypt(cricket::MediaType media_type,
uint32_t ssrc,
rtc::ArrayView<const uint8_t> additional_data,
rtc::ArrayView<const uint8_t> frame,
rtc::ArrayView<uint8_t> encrypted_frame,
size_t* bytes_written) = 0;