Implementation of Encryption

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Implementation of Encryption Decryption
Algorithms on FPGA

• Ikramuddin Tushti Marwah
• ECE551
  Fall04
• The University Of Tennessee

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Block Diagram
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Types of Algorithms

• Type 1 Lower Nibble (Rotating left by 2-bits)
• Upper Nibble (XOR with
  predefined pad)
• Type 2 Lower Nibble (Rotating left by 2-bits)
• Upper Nibble (XOR with
  variable pad)
• Type 3 Tiny Encryption Algorithm (TEA)
• BIST Type 1 algorithm is used with predefined
  input data and the encrypted data is displayed on
  LEDs.

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Tiny Encryption Algorithm (TEA)
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Pre-Synthesis Simulation Results
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Post-Layout Simulation for Flex
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Post-Layout Simulation for Virtex
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Flex Floorplan
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Virtex Layout
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Future Improvements

• VGA Module can be interfaced to display encrypted
  decrypted data on the monitor.
• The input data can be given serially from the
  keyboard and there by encryption decryption of
  a multiple length string can be done.

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Questions!

• Thank You
• Good Luck for Finals!