Regular Message Packet

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📦 Size

11 – 65,531 bytes

• TYPE: 8 bits
• LENGTH: 16 bits (represents the original message length in bytes)
• MESSAGE: 64 – 524,224 bits (8 – 65,528 bytes, padded)

The message is padded to the nearest multiple of 8 bytes.

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🔁 Sent By

Both client and server, after a session is successfully established.

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🧪 Contents

• TYPE field (0x01) is unencrypted
• LENGTH field indicates the actual message size (before padding)
• The MESSAGE field contains:
  • The message string (UTF-8)
  • Random padding
  • All encrypted using the session key

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📌 Padding Details

To align with 64-bit (8-byte) encryption blocks, the message is padded with random bytes.
This padding is stripped automatically after decryption.

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🔒 Purpose

This packet carries actual user data between the server and client.
All content is encrypted using the session key to ensure confidentiality.