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Cryptography & Software Security Project

  1. Encryption Algorithm Implementation
  2. Research paper presentation

Encryption Algorithm

Research Paper

Presentation

Proposed algorithm

  1. Assignment of values:
  2. Letters A,B,..,Z as 1,2,..,26.
  3. Digits 1,2,..,9 as 27,28,..,35.
  4. Digit 0 as 0 only.
  5. PT is divided into blocks of 16 bytes represented by Matrix Mp.
  6. Key is array K of size 16 which has values generated from random(1,26) with repetition.
  7. Perform transpose of Mp as Mp^T
  8. Formulate Encrypted Key matrix Ke using for i in Ke: i=i%2
  9. Resultant Matrix Cpk = Mp^T + Ke
  10. Since Cpk is a 4x4 matrix,
  11. Rotate 1st row by 1 element, 2nd row by 2 elements, 3rd row by 3 elements, 4th row by 0 elements. This gives matrix Chr.
  12. Rotate 1st column by 1 element, 2nd column by 2 elements, 3rd column by 3 elements, 4th column by 0 elements. This gives matrix Cvr.
  13. Matrix Cvr is the final encrypted block