Abstract
This letter proposes a Perfect-Reconstruction (PR) encryption scheme based on a PR QMF bank. Using the proposed scheme, signals can be encrypted and reconstructed perfectly by using two Periodically Time-Varying (PTV) digital filters respectively. Also we find that the proposed scheme has a `good' encryption effect and compares favorably with frequency scramble in the aspects computation complexity, PR property, and degree of security.
| Original language | English |
|---|---|
| Pages (from-to) | 192-196 |
| Number of pages | 5 |
| Journal | IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences |
| Volume | E81-A |
| Issue number | 1 |
| Publication status | Published - 1998 Jan 1 |
| Externally published | Yes |
ASJC Scopus subject areas
- Signal Processing
- Computer Graphics and Computer-Aided Design
- Electrical and Electronic Engineering
- Applied Mathematics