Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography
We propose separable reversible data hiding in an encrypted signal with public key cryptography. In our separable framework, the image owner encrypts the original image by using a public key. On receipt of the encrypted signal, the data-hider embeds data in it by using a data-hiding key. The image d...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2018-01-01
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| Series: | Symmetry |
| Subjects: | |
| Online Access: | http://www.mdpi.com/2073-8994/10/1/23 |
| _version_ | 1811279166432083968 |
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| author | Wei-Liang Tai Ya-Fen Chang |
| author_facet | Wei-Liang Tai Ya-Fen Chang |
| author_sort | Wei-Liang Tai |
| collection | DOAJ |
| description | We propose separable reversible data hiding in an encrypted signal with public key cryptography. In our separable framework, the image owner encrypts the original image by using a public key. On receipt of the encrypted signal, the data-hider embeds data in it by using a data-hiding key. The image decryption and data extraction are independent and separable at the receiver side. Even though the receiver, who has only the data-hiding key, does not learn about the decrypted content, he can extract data from the received marked encrypted signal. However, the receiver who has only the private key cannot extract the embedded data, but he can directly decrypt the received marked encrypted signal to obtain the original image without any error. Compared with other schemes using a cipher stream to encrypt the image, the proposed scheme is more appropriate for cloud services without degrading the security level. |
| first_indexed | 2024-04-13T00:49:47Z |
| format | Article |
| id | doaj.art-4df22aa37e104211b1f7a14a943fdc56 |
| institution | Directory Open Access Journal |
| issn | 2073-8994 |
| language | English |
| last_indexed | 2024-04-13T00:49:47Z |
| publishDate | 2018-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Symmetry |
| spelling | doaj.art-4df22aa37e104211b1f7a14a943fdc562022-12-22T03:09:54ZengMDPI AGSymmetry2073-89942018-01-011012310.3390/sym10010023sym10010023Separable Reversible Data Hiding in Encrypted Signals with Public Key CryptographyWei-Liang Tai0Ya-Fen Chang1Department of Information Communications, Chinese Culture University, Taipei 111, TaiwanDepartment of Computer Science and Information Engineering, National Taichung University of Science and Technology, Taichung 404, TaiwanWe propose separable reversible data hiding in an encrypted signal with public key cryptography. In our separable framework, the image owner encrypts the original image by using a public key. On receipt of the encrypted signal, the data-hider embeds data in it by using a data-hiding key. The image decryption and data extraction are independent and separable at the receiver side. Even though the receiver, who has only the data-hiding key, does not learn about the decrypted content, he can extract data from the received marked encrypted signal. However, the receiver who has only the private key cannot extract the embedded data, but he can directly decrypt the received marked encrypted signal to obtain the original image without any error. Compared with other schemes using a cipher stream to encrypt the image, the proposed scheme is more appropriate for cloud services without degrading the security level.http://www.mdpi.com/2073-8994/10/1/23separable reversible data hidinghomomorphic cryptosystemencrypted signalpublic key cryptography |
| spellingShingle | Wei-Liang Tai Ya-Fen Chang Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography Symmetry separable reversible data hiding homomorphic cryptosystem encrypted signal public key cryptography |
| title | Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography |
| title_full | Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography |
| title_fullStr | Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography |
| title_full_unstemmed | Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography |
| title_short | Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography |
| title_sort | separable reversible data hiding in encrypted signals with public key cryptography |
| topic | separable reversible data hiding homomorphic cryptosystem encrypted signal public key cryptography |
| url | http://www.mdpi.com/2073-8994/10/1/23 |
| work_keys_str_mv | AT weiliangtai separablereversibledatahidinginencryptedsignalswithpublickeycryptography AT yafenchang separablereversibledatahidinginencryptedsignalswithpublickeycryptography |