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SecurityProtocolType Enumeration

Specifies the security protocols that are supported by the Schannel security package.

This enumeration has a FlagsAttribute attribute that allows a bitwise combination of its member values.

Namespace:  System.Net
Assembly:  System (in System.dll)

[<FlagsAttribute>]
type SecurityProtocolType

Member nameDescription
Ssl3Specifies the Secure Socket Layer (SSL) 3.0 security protocol.

SSL 3.0 has been superseded by the Transport Layer Security (TLS) protocol and is provided for backward compatibility only.

TlsSpecifies the Transport Layer Security (TLS) 1.0 security protocol.

TLS assumes that a connection-oriented protocol, typically TCP, is in use. The TLS protocol is defined in IETF RFC 2246.

This enumeration defines permissible values for the SecurityProtocol property and specifies the security protocols that are used by instances of the SslStream class.

The following code example demonstrates creating a TcpClient that uses the SslStream class to communicate with a server.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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