vb.net ean 13 reader The Alert Protocol in Software

Generation USS Code 39 in Software The Alert Protocol

7
Read Code 39 In None
Using Barcode Control SDK for Software Control to generate, create, read, scan barcode image in Software applications.
Code 3 Of 9 Printer In None
Using Barcode generation for Software Control to generate, create Code 3/9 image in Software applications.
The Alert Protocol
USS Code 39 Reader In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
Print Code 3 Of 9 In Visual C#
Using Barcode generator for .NET Control to generate, create USS Code 39 image in Visual Studio .NET applications.
One of the content types supported by the SSL record layer is the alert type. The alert protocol conveys alert messages and their severity to parties in an SSL session. Just as application data is processed by the record layer, alert messages are compressed and encrypted as specified by the current connection state. When either party detects an error, the detecting party sends a message to the other. If the alert message has a fatal result, both parties immediately close the connection. Both parties are required to forget any session identifier, keys, and secrets associated with a failed connection. For all other nonfatal errors, both parties can cache information to resume the connection. The following error alerts are always fatal:
Create USS Code 39 In .NET Framework
Using Barcode encoder for ASP.NET Control to generate, create USS Code 39 image in ASP.NET applications.
Code 39 Full ASCII Creation In .NET
Using Barcode printer for .NET framework Control to generate, create USS Code 39 image in .NET framework applications.
I I I
Creating Code 39 Full ASCII In VB.NET
Using Barcode printer for .NET framework Control to generate, create USS Code 39 image in .NET applications.
Code 39 Full ASCII Creation In None
Using Barcode creator for Software Control to generate, create Code 3/9 image in Software applications.
Unexpected_message This message is returned if an inappropriate message was received. Bad_record_mac This message is returned if a record is received without a correct message authentication code. Decompression_failure This message is returned if the decompression function received improper input (for example, the data could not be decompressed or it decompresses to an excessive length). Handshake_failure The return of this message indicates that the sender was unable to negotiate an acceptable set of security parameters given the available options. Illegal_parameter A field in the handshake was out of range or inconsistent with other fields. The remaining alerts are as follows:
ECC200 Maker In None
Using Barcode creator for Software Control to generate, create Data Matrix 2d barcode image in Software applications.
Generating Barcode In None
Using Barcode generation for Software Control to generate, create barcode image in Software applications.
No_certificate This message can be sent in response to a certification request if no appropriate certificate is available. Bad_certificate The return of this message indicates that a certificate was corrupted (that is, it contained a signature that did not verify). Unsupported_certificate The return of this message indicates that a certificate was of an unsupported type. Certificate_revoked The return of this message indicates that a certificate was revoked by its signer.
Drawing USS Code 128 In None
Using Barcode generator for Software Control to generate, create USS Code 128 image in Software applications.
UCC - 12 Creator In None
Using Barcode generation for Software Control to generate, create UCC-128 image in Software applications.
Network and Transport Security Protocols
Code 2 Of 7 Creator In None
Using Barcode maker for Software Control to generate, create ABC Codabar image in Software applications.
Bar Code Creation In .NET Framework
Using Barcode generator for Reporting Service Control to generate, create bar code image in Reporting Service applications.
Certificate_expired The return of this message indicates that a certificate has expired. Certificate_unknown The return of this message indicates that some other (unspecified) issue arose in processing the certificate, and it was rendered unacceptable. Close_notify This message notifies the recipient that the sender will not send any more messages on this connection. Each party is required to send this message before closing the write side of a connection.
Encode ANSI/AIM Code 39 In None
Using Barcode drawer for Word Control to generate, create Code 3/9 image in Word applications.
Bar Code Maker In C#.NET
Using Barcode creation for VS .NET Control to generate, create bar code image in Visual Studio .NET applications.
The Handshake Protocol
Create Bar Code In Objective-C
Using Barcode generation for iPhone Control to generate, create barcode image in iPhone applications.
Drawing EAN13 In Java
Using Barcode generator for Android Control to generate, create EAN-13 image in Android applications.
The SSL handshake protocol is responsible for establishing the parameters of the current session state. As shown in Figure 7-17, both parties agree on a protocol version, select cryptographic algorithms, optionally
Make Code 39 Full ASCII In Java
Using Barcode drawer for Java Control to generate, create Code 39 Extended image in Java applications.
GS1 - 13 Encoder In Visual C#.NET
Using Barcode printer for Visual Studio .NET Control to generate, create UPC - 13 image in VS .NET applications.
Figure 7-17 Overview of the handshake protocol
7
authenticate each other, and use public-key encryption techniques to generate shared secrets (described later under Cryptographic Computations ) through a series of messages exchanged between the client and the server. The following subsections explain in detail the steps of the handshake protocol.
The Client Hello Message
For communications to begin between a client and a server, the client must first initiate a client hello message. The contents of this message provide the server with data (such as version, random value, session ID, acceptable ciphers, and acceptable compression methods) about variables that are supported by the client. This message can come as a client response to a hello request (from the server), or on its own initiative the client can use it to renegotiate the security parameters in an existing connection. A client hello message contains the following fields:
Client_version This field provides the highest SSL version that is understood by the client. Random This field contains a client-generated random structure that will be used for later cryptographic computations in the SSL protocol. The 32-byte random structure is not entirely random. Rather, it is made up of a 4-byte date/time stamp, with the remaining 28 bytes of data being randomly generated. The date/time stamp assists in the prevention of replay attacks. Session_id This field contains a variable-length session identifier. This field should be empty if no session identifier is available or if the client wishes to generate new security parameters. If the session identifier does, however, contain a value, that value should identify a previous session between the same client and server whose security parameters the client wishes to reuse. (The reuse of session identifiers is discussed later in this chapter under Resuming Sessions. ) Cipher_suites This field contains a list of combinations for cryptographic algorithms supported by the client. This list is ordered according to the client s preference (that is, first choice first). This list is used to make the server aware of the cipher suites available to the client, but it is the server that ultimately decides which cipher will be
Copyright © OnBarcode.com . All rights reserved.