des-verification-uvm

This project focuses on the Verification of Data Encryption Standard (DES) Using the Universal Verification Methodology (UVM). The Data Encryption Standard (DES) is a symmetric key algorithm used to encrypt and decrypt data in blocks of 64 bits, with a 64-bit key. The RTL design of DES is sourced from OpenCores.

Interface Signals

The following table describes the interface signals used in the DES module:

Signal Name	Direction	Width	Description
clk	Input	1-bit	Clock signal
reset_mode	Input	1-bit	Active low reset
encrypt_decrypt	Input	1-bit	Mode control: 0 for encryption, 1 for decryption
in_data	Input	64-bit	Input data for encryption(plain text) or decryption (cipher text)
in_key	Input	64-bit	Encryption/decryption key
in_load	Input	1-bit	Load signal to load input data and key
out_data	Output	64-bit	Output data after encryption (cipher text) or decryption(plain text)
out_ready	Output	1-bit	Signal indicating output data is ready

UVM Testbench Architecture

Coverage Results

• Functional Coverage:

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• Code Coverage:

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For more information about the DES algorithm, please refer to the DES specification in the doc/DES_spec directory.