Visual Crypto Coding

• Visual Crypto Coding is a cryptographic technique that involves encrypting an input image using a randomly generated key.
• The encrypted image can then be decrypted using either the same key (in symmetric encryption) or different keys (in asymmetric encryption methods).
• This technique is particularly useful for ensuring the secure transmission and storage of sensitive images.
• In addition to generating encrypted images, this process also yields decrypted images to verify data integrity.
• This involves ensuring that the decrypted images obtained from all cryptographic algorithms match the original input image, thereby confirming the accuracy of the encryption and decryption processes.
• Further improvements can be done to improve data confidentiality, efficiency of the codes. Please feel free to submit a pull request.

Preview

Encryption Time

• The encryption time of all the four algorithms are obtained as follows in EncryptTime.txt file

  Algo	Time
  DES	4939747699 ns
  3DES	4500023999 ns
  AES	4476420593 ns
  RSA	5360362883 ns

Key Takeaways

• Conducted thorough performance analysis, revealing the AES algorithm with an encryption time of 4.47 secs, outperforming other algorithms by 10.02% on average.
• This highlights the superior efficiency and security of AES compared to the other algorithms.

References

• Java Cryptography Architecture - Reference Guide
• Data Encryption Methods & Types