Class CryptoSuites

Class that provides information about the crypto suites for SRTP that this class library supports.

Inheritance

object

CryptoSuites

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 CryptoSuites

Fields

AES_192_CM_HMAC_SHA1_32

See Table 2 of RFC 6188

Declaration

public const string AES_192_CM_HMAC_SHA1_32 = "AES_192_CM_HMAC_SHA1_32"

Field Value

Type	Description
string

AES_192_CM_HMAC_SHA1_80

See Table 1 of RFC 6188

Declaration

public const string AES_192_CM_HMAC_SHA1_80 = "AES_192_CM_HMAC_SHA1_80"

Field Value

Type	Description
string

AES_256_CM_HMAC_SHA1_32

See Table 4 of RFC 6188

Declaration

public const string AES_256_CM_HMAC_SHA1_32 = "AES_256_CM_HMAC_SHA1_32"

Field Value

Type	Description
string

AES_256_CM_HMAC_SHA1_80

See Table 3 of RFC 6188

Declaration

public const string AES_256_CM_HMAC_SHA1_80 = "AES_256_CM_HMAC_SHA1_80"

Field Value

Type	Description
string

AES_CM_128_HMAC_SHA1_32

See Section 6.2.2 of RFC 4568

Declaration

public const string AES_CM_128_HMAC_SHA1_32 = "AES_CM_128_HMAC_SHA1_32"

Field Value

Type	Description
string

AES_CM_128_HMAC_SHA1_80

See Section 6.2.1 of RFC 4568

Declaration

public const string AES_CM_128_HMAC_SHA1_80 = "AES_CM_128_HMAC_SHA1_80"

Field Value

Type	Description
string

F8_128_HMAC_SHA1_80

See Section 6.2.3 of RFC 4568

Declaration

public const string F8_128_HMAC_SHA1_80 = "F8_128_HMAC_SHA1_80"

Field Value

Type	Description
string

SupportedAlgorithms

Gets the list of supported SRTP cryptographic algorithms. This list is ordered from most preferred (most secure) to least preferred.

Declaration

public static List<string> SupportedAlgorithms

Field Value

Type	Description
List<string>

Methods

CryptoSuiteIsSupported(string)

Returns true if the crypto cryptoSuite is supported or false if it not

Declaration

public static bool CryptoSuiteIsSupported(string cryptoSuite)

Parameters

Type	Name	Description
string	cryptoSuite	Name of the crypto cryptoSuite

Returns

Type	Description
bool	True if the cryptoSuite is supported or false if it is not.

GetAuthTagLengthBytes(string)

Gets the length in bytes of the authentication tag that is appended to each RTP and RTCP packet.

Declaration

public static int GetAuthTagLengthBytes(string cryptoSuite)

Parameters

Type	Name	Description
string	cryptoSuite	Crypto suite.

Returns

Type	Description
int	Returns the length of the SRTP authentication in bytes. The return value either be 10 or 4.

GetKeyLengthBytes(string)

Gets the key length in bytes for a cryto suite

Declaration

public static int GetKeyLengthBytes(string cryptoSuite)

Parameters

Type	Name	Description
string	cryptoSuite	The SRTP crypto suite that the inline parameters relate to

Returns

Type	Description
int	Returns the expected key length