Class SrtpTransformBase

Base class for the SrtpEncryptor and SrtpDecryptor classes

Inheritance

object

SrtpTransformBase

SrtpDecryptor

SrtpEncryptor

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Namespace: SipLib.RtpCrypto

Assembly: SipLib.dll

Syntax

public class SrtpTransformBase

Constructors

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SrtpTransformBase(CryptoContext)

Constructor

Declaration

protected SrtpTransformBase(CryptoContext context)

Parameters

Type	Name	Description
CryptoContext	context	CryptoContext to use

Fields

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m_Context

Cryptographic context to use for encryption and decryption of RTP and RTCP packets.

Declaration

protected CryptoContext m_Context

Field Value

Type	Description
CryptoContext

Properties

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Error

Gets or sets the reason for an encryption or a decryption error. This property will be set to a value indicating the cause of the error if an encryption or decryption method returns null.

Declaration

public SRtpErrorsEnum Error { get; protected set; }

Property Value

Type	Description
SRtpErrorsEnum

Methods

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ApplySrtcpTransform(RtcpHeader, uint, ulong, byte[], byte[])

Applies the AES or F8 transform specified in the CryptoContext to the input byte array to produce the output byte array for a RTCP packet

Declaration

protected void ApplySrtcpTransform(RtcpHeader Header, uint SSRC, ulong PI, byte[] InputBytes, byte[] OutputBytes)

Parameters

Type	Name	Description
RtcpHeader	Header	RTCP packet header
uint	SSRC	SSRC of the RTCP packet
ulong	PI	The calculated Packet Index
byte[]	InputBytes	Input array
byte[]	OutputBytes	Output array. Must be the same length as the input array

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ApplySrtcpTransform(RtcpHeader, uint, ulong, byte[], int, int, byte[])

Applies the AES or F8 transform specified in the CryptoContext to the input byte array to produce the output byte array for a RTCP packet

Declaration

protected void ApplySrtcpTransform(RtcpHeader Header, uint SSRC, ulong PI, byte[] InputBytes, int StartIdx, int Length, byte[] OutputBytes)

Parameters

Type	Name	Description
RtcpHeader	Header	RTCP header for the RTCP packet
uint	SSRC	SSRC of the RTCP packet
ulong	PI	The calculated Packet Index
byte[]	InputBytes	Input array
int	StartIdx	Starting index in the input array
int	Length	Number of bytes to apply the transform to
byte[]	OutputBytes	Output array. Must be the same length as the input array

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ApplySrtpTransform(RtpPacket, ulong, byte[], byte[])

Applies the AES or F8 transform specified in the CryptoContext to the input byte array to produce the output byte array for a RTP packet

Declaration

protected void ApplySrtpTransform(RtpPacket Rp, ulong PI, byte[] InputBytes, byte[] OutputBytes)

Parameters

Type	Name	Description
RtpPacket	Rp	RtpPacket containing the SSRC.
ulong	PI	The calculated Packet Index
byte[]	InputBytes	Input array
byte[]	OutputBytes	Output array. Must be the same length as the input array