srtp

package module
v1.1.2 Latest Latest
Warning

This package is not in the latest version of its module.

 Go to latest Published: Mar 17, 2019 License: MIT Imports: 16 Imported by: 0

README


Pion SRTP

A Go implementation of SRTP

Pion SRTP Sourcegraph Widget Slack Widget Waffle board
Build Status GoDoc Coverage Status Go Report Card


See DESIGN.md for an overview of features and future goals.

Roadmap

The library is used as a part of our WebRTC implementation. Please refer to that roadmap to track our major milestones.

Community

Pion has an active community on the Golang Slack. Sign up and join the #pion channel for discussions and support. You can also use Pion mailing list.

We are always looking to support your projects. Please reach out if you have something to build!

If you need commercial support or don't want to use public methods you can contact us at team@pion.ly

Contributing

Check out the contributing wiki to join the group of amazing people making this project possible:

License

MIT License - see LICENSE for full text

Documentation

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type Config added in v1.0.2 

type Config struct {
	Keys    SessionKeys
	Profile ProtectionProfile
}

Config is used to configure a session. You can provide either a KeyingMaterialExporter to export keys or directly pass the keys themselves. After a Config is passed to a session it must not be modified.

func (*Config) ExtractSessionKeysFromDTLS added in v1.0.2 

func (c *Config) ExtractSessionKeysFromDTLS(exporter KeyingMaterialExporter, isClient bool) error

ExtractSessionKeysFromDTLS allows setting the Config SessionKeys by extracting them from DTLS. This behavior is defined in RFC5764: https://tools.ietf.org/html/rfc5764

type Context 

type Context struct {
	// contains filtered or unexported fields
}

Context represents a SRTP cryptographic context Context can only be used for one-way operations it must either used ONLY for encryption or ONLY for decryption

func CreateContext 

func CreateContext(masterKey, masterSalt []byte, profile ProtectionProfile) (c *Context, err error)

CreateContext creates a new SRTP Context

func (*Context) DecryptRTCP 

func (c *Context) DecryptRTCP(dst, encrypted []byte, header *rtcp.Header) ([]byte, error)

DecryptRTCP decrypts a buffer that contains a RTCP packet

func (*Context) DecryptRTP 

func (c *Context) DecryptRTP(dst, encrypted []byte, header *rtp.Header) ([]byte, error)

DecryptRTP decrypts a RTP packet with an encrypted payload

func (*Context) EncryptRTCP 

func (c *Context) EncryptRTCP(dst, decrypted []byte, header *rtcp.Header) ([]byte, error)

EncryptRTCP Encrypts a RTCP packet

func (*Context) EncryptRTP 

func (c *Context) EncryptRTP(dst []byte, plaintext []byte, header *rtp.Header) ([]byte, error)

EncryptRTP marshals and encrypts an RTP packet, writing to the dst buffer provided. If the dst buffer does not have the capacity to hold `len(plaintext) + 10` bytes, a new one will be allocated and returned. If a rtp.Header is provided, it will be Unmarshaled using the plaintext.

type KeyingMaterialExporter added in v1.0.2 

type KeyingMaterialExporter interface {
	ExportKeyingMaterial(label string, context []byte, length int) ([]byte, error)
}

KeyingMaterialExporter allows package SRTP to extract keying material

type ProtectionProfile 

type ProtectionProfile uint16

ProtectionProfile specifies Cipher and AuthTag details, similar to TLS cipher suite 

const (
	ProtectionProfileAes128CmHmacSha1_80 ProtectionProfile = 0x0001
)

Supported protection profiles

type ReadStreamSRTCP 

type ReadStreamSRTCP struct {
	// contains filtered or unexported fields
}

ReadStreamSRTCP handles decryption for a single RTCP SSRC

func (*ReadStreamSRTCP) Close added in v1.0.3 

func (r *ReadStreamSRTCP) Close() error

Close removes the ReadStream from the session and cleans up any associated state

func (*ReadStreamSRTCP) GetSSRC 

func (r *ReadStreamSRTCP) GetSSRC() uint32

GetSSRC returns the SSRC we are demuxing for

func (*ReadStreamSRTCP) Read 

func (r *ReadStreamSRTCP) Read(b []byte) (int, error)

Read reads and decrypts full RTCP packet from the nextConn

func (*ReadStreamSRTCP) ReadRTCP 

func (r *ReadStreamSRTCP) ReadRTCP(buf []byte) (int, *rtcp.Header, error)

ReadRTCP reads and decrypts full RTCP packet and its header from the nextConn

type ReadStreamSRTP 

type ReadStreamSRTP struct {
	// contains filtered or unexported fields
}

ReadStreamSRTP handles decryption for a single RTP SSRC

func (*ReadStreamSRTP) Close added in v1.0.3 

func (r *ReadStreamSRTP) Close() error

Close removes the ReadStream from the session and cleans up any associated state

func (*ReadStreamSRTP) GetSSRC 

func (r *ReadStreamSRTP) GetSSRC() uint32

GetSSRC returns the SSRC we are demuxing for

func (*ReadStreamSRTP) Read 

func (r *ReadStreamSRTP) Read(buf []byte) (int, error)

Read reads and decrypts full RTP packet from the nextConn

func (*ReadStreamSRTP) ReadRTP 

func (r *ReadStreamSRTP) ReadRTP(buf []byte) (int, *rtp.Header, error)

ReadRTP reads and decrypts full RTP packet and its header from the nextConn

type SessionKeys added in v1.0.2 

type SessionKeys struct {
	LocalMasterKey   []byte
	LocalMasterSalt  []byte
	RemoteMasterKey  []byte
	RemoteMasterSalt []byte
}

SessionKeys bundles the keys required to setup an SRTP session

type SessionSRTCP 

type SessionSRTCP struct {
	// contains filtered or unexported fields
}

SessionSRTCP implements io.ReadWriteCloser and provides a bi-directional SRTCP session SRTCP itself does not have a design like this, but it is common in most applications for local/remote to each have their own keying material. This provides those patterns instead of making everyone re-implement

func NewSessionSRTCP added in v1.0.2 

func NewSessionSRTCP(conn net.Conn, config *Config) (*SessionSRTCP, error)

NewSessionSRTCP creates a SRTCP session using conn as the underlying transport.

func (*SessionSRTCP) AcceptStream 

func (s *SessionSRTCP) AcceptStream() (*ReadStreamSRTCP, uint32, error)

AcceptStream returns a stream to handle RTCP for a single SSRC

func (*SessionSRTCP) Close 

func (s *SessionSRTCP) Close() error

Close ends the session

func (*SessionSRTCP) OpenReadStream 

func (s *SessionSRTCP) OpenReadStream(SSRC uint32) (*ReadStreamSRTCP, error)

OpenReadStream opens a read stream for the given SSRC, it can be used if you want a certain SSRC, but don't want to wait for AcceptStream

func (*SessionSRTCP) OpenWriteStream 

func (s *SessionSRTCP) OpenWriteStream() (*WriteStreamSRTCP, error)

OpenWriteStream returns the global write stream for the Session

type SessionSRTP 

type SessionSRTP struct {
	// contains filtered or unexported fields
}

SessionSRTP implements io.ReadWriteCloser and provides a bi-directional SRTP session SRTP itself does not have a design like this, but it is common in most applications for local/remote to each have their own keying material. This provides those patterns instead of making everyone re-implement

func NewSessionSRTP added in v1.0.2 

func NewSessionSRTP(conn net.Conn, config *Config) (*SessionSRTP, error)

NewSessionSRTP creates a SRTP session using conn as the underlying transport.

func (*SessionSRTP) AcceptStream 

func (s *SessionSRTP) AcceptStream() (*ReadStreamSRTP, uint32, error)

AcceptStream returns a stream to handle RTCP for a single SSRC

func (*SessionSRTP) Close 

func (s *SessionSRTP) Close() error

Close ends the session

func (*SessionSRTP) OpenReadStream 

func (s *SessionSRTP) OpenReadStream(SSRC uint32) (*ReadStreamSRTP, error)

OpenReadStream opens a read stream for the given SSRC, it can be used if you want a certain SSRC, but don't want to wait for AcceptStream

func (*SessionSRTP) OpenWriteStream 

func (s *SessionSRTP) OpenWriteStream() (*WriteStreamSRTP, error)

OpenWriteStream returns the global write stream for the Session

func (*SessionSRTP) Start 

func (s *SessionSRTP) Start(localMasterKey, localMasterSalt, remoteMasterKey, remoteMasterSalt []byte, profile ProtectionProfile, nextConn net.Conn) error

Start initializes any crypto context and allows reading/writing to begin

type WriteStreamSRTCP 

type WriteStreamSRTCP struct {
	// contains filtered or unexported fields
}

WriteStreamSRTCP is stream for a single Session that is used to encrypt RTCP

func (*WriteStreamSRTCP) Write 

func (w *WriteStreamSRTCP) Write(b []byte) (int, error)

Write encrypts and writes a full RTCP packets to the nextConn

func (*WriteStreamSRTCP) WriteRTCP 

func (w *WriteStreamSRTCP) WriteRTCP(header *rtcp.Header, payload []byte) (int, error)

WriteRTCP encrypts a RTCP header and its payload to the nextConn

type WriteStreamSRTP 

type WriteStreamSRTP struct {
	// contains filtered or unexported fields
}

WriteStreamSRTP is stream for a single Session that is used to encrypt RTP

func (*WriteStreamSRTP) Write 

func (w *WriteStreamSRTP) Write(b []byte) (int, error)

Write encrypts and writes a full RTP packets to the nextConn

func (*WriteStreamSRTP) WriteRTP 

func (w *WriteStreamSRTP) WriteRTP(header *rtp.Header, payload []byte) (int, error)

WriteRTP encrypts a RTP packet and writes to the connection

Source Files

View all Source files

Jump to

Keyboard shortcuts

? : This menu
/ : Search site
f or F : Jump to
y or Y : Canonical URL
go.dev uses cookies from Google to deliver and enhance the quality of its services and to analyze traffic. Learn more.