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Across

1. A process in which two devices establish communication by exchanging predetermined signals or messages.

2. Cryptographic protocols designed to provide secure communication over a computer network.

Down

3. A protocol used for the secure transmission of data over the internet, often used for online transactions and other sensitive information.

4. A protocol used for secure communication over the internet, often used for virtual private networks (VPNs).

5. A set of rules that govern the exchange of data between devices in a network.

6. A widely accepted and recognized specification or protocol used for uniformity and compatibility.

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