1. Who Generates The Session Key In Word
2. Who Generates The Session Key West
3. Who Generates The Session Keys

The Transport Layer Security (TLS) Handshake Protocol is responsible for the authentication and key exchange necessary to establish or resume secure sessions. When establishing a secure session, the Handshake Protocol manages the following:

The key pairs are generated on the fly; i.e. The key pairs are ephemeral (the E in DHE). Both client and server establish a session key. The server (or the client and server) then authenticate by performing signature-generation (for authentication).

• Cipher suite negotiation
• Authentication of the server and optionally, the client
• Session key information exchange.

After completion of this step, DS28C36ApplicationSlaveSessionKey.exe sets up and executes the DS28C36 Compute and Read Page Authentication command with the challenge generated by applicationmastersessionkey.exe to produce the Session Key according to Figure 9. Apr 13, 2016  When a request arrives, it contains the username and IP address is automatically recorded. The server then uses the username, the IP address and secret key to re-generate the session Id and see if it matches with the session Id passed by the client. If it does, the verification is successful.

Login to Bomgar Representative Console and select the Session Key radio button. This will generate a one-time key for the client to input on their end. From the Session Key window, you will be able to set an expiration time on the key, if the client is not currently at their computer. Should the question be about how to find the random number (32 bytes) which client's browser sends to web server and what number (along with server's random number (32 bytes)) is employed to generate the session key (the length depends on cipher suit, which code is not encrypted within the handshake) then this random number (server's random number as well) is sent in unencrypted form too.

Cipher Suite Negotiation

The client and server make contact and choose the cipher suite that will be used throughout their message exchange.

Authentication

In TLS, a server proves its identity to the client. The client might also need to prove its identity to the server. PKI, the use of public/private key pairs, is the basis of this authentication. The exact method used for authentication is determined by the cipher suite negotiated.

Key Exchange

The client and server exchange random numbers and a special number called the Pre-Master Secret. These numbers are combined with additional data permitting client and server to create their shared secret, called the Master Secret. The Master Secret is used by client and server to generate the write MAC secret, which is the session key used for hashing, and the write key, which is the session key used for encryption.

Establishing a Secure Session by Using TLS

The TLS Handshake Protocol involves the following steps:

1. The client sends a 'Client hello' message to the server, along with the client's random value and supported cipher suites.
2. The server responds by sending a 'Server hello' message to the client, along with the server's random value.
3. The server sends its certificate to the client for authentication and may request a certificate from the client. The server sends the 'Server hello done' message.
4. If the server has requested a certificate from the client, the client sends it.
5. The client creates a random Pre-Master Secret and encrypts it with the public key from the server's certificate, sending the encrypted Pre-Master Secret to the server.
6. The server receives the Pre-Master Secret. The server and client each generate the Master Secret and session keys based on the Pre-Master Secret.
7. The client sends 'Change cipher spec' notification to server to indicate that the client will start using the new session keys for hashing and encrypting messages. Client also sends 'Client finished' message.
8. Server receives 'Change cipher spec' and switches its record layer security state to symmetric encryption using the session keys. Server sends 'Server finished' message to the client.
9. Client and server can now exchange application data over the secured channel they have established. All messages sent from client to server and from server to client are encrypted using session key.

Resuming a Secure Session by Using TLS

1. The client sends a 'Client hello' message using the Session ID of the session to be resumed.

2. The server checks its session cache for a matching Session ID. If a match is found, and the server is able to resume the session, it sends a 'Server hello' message with the Session ID.

   Note

   If a session ID match is not found, the server generates a new session ID and the TLS client and server perform a full handshake.

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3. Client and server must exchange 'Change cipher spec' messages and send 'Client finished' and 'Server finished' messages.

4. Client and server can now resume application data exchange over the secure channel.

Opened 14 years ago

Closed 12 years ago

Last modified 9 years ago

#1180closeddefect (fixed)

Attachments (4)

sessions.uuid.patch​ (1.1 KB) - added by 12 years ago.

uuid.py​ (19.8 KB) - added by 12 years ago.

the uuid file fall back for python 2.3 & 2.4. I put it in django/utils

use_63bit_random.diff​ (1.6 KB) - added by 12 years ago.

Always use 63 bits for random

ticket_1180__rev_8168-getrandbits.diff​ (1.6 KB) - added by 12 years ago.

Uses getrandbits to get random bits, rather than hacking it with random.randint

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Change History (46)

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Who Generates The Session Key In Word

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Who Generates The Session Key West

Who Generates The Session Keys