Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography

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题名:	Separable Reversible Data Hiding in Encrypted Signals with Public Key Cryptography
作者:	Tai, WL (Tai, Wei-Liang) Chang, YF (Chang, Ya-Fen)
贡献者:	資訊傳播學系暨資訊傳播研究所
关键词:	IMAGES
日期:	2018-01
上传时间:	2019-01-23 10:36:14 (UTC+8)
摘要:	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.
显示于类别:	[資訊管理學系暨資訊管理研究所 ] 期刊論文

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