期刊名称：Signal & Image Processing : An International Journal (SIPIJ)
印刷版ISSN：2229-3922
电子版ISSN：0976-710X
出版年度：2011
卷号：2
期号：2
页码：170
出版社：Academy & Industry Research Collaboration Center (AIRCC)
摘要：The digital signature and watermarking methods are used for image authentication. Digital signatureencodes the signature in a file separate from the original image. Cryptographic algorithms have suggestedseveral advantages over the traditional encryption algorithms such as high security, speed, reasonablecomputational overheads and computational power. A digital watermark and signature method for imageauthentication using cryptography analysis is proposed. The digital signature created for the originalimage and apply watermark. Images are resized before transmission in the network. After digital signatureand water marking an image, apply the encryption and decryption process to an image for theauthentication. The encryption is used to securely transmit data in open networks for the encryption of animage using public key and decrypt that image using private key.
关键词：Digital Signature; Water Marking; Cryptography; Authentication; security
