A secure image compression-encryption algorithm using DCT and hyperchaotic system.
Huiqing HuangDongsheng ChengPublished in: Multim. Tools Appl. (2022)
Keyphrases
- image compression
- encryption algorithm
- data encryption
- security analysis
- discrete cosine transform
- encryption scheme
- high security
- encryption algorithms
- lossless compression
- security requirements
- low bit rate
- chaotic systems
- wavelet transform
- advanced encryption standard
- reconstructed image
- subband
- compression algorithm
- compression ratio
- authentication protocol
- smart card
- user authentication
- pseudorandom
- data confidentiality
- image processing
- standard model
- ciphertext
- security issues
- sensitive data
- dct coefficients
- private key
- authentication scheme
- digital content
- initial conditions
- image encryption
- key management
- security mechanisms