In this paper a new patch-based digital signature (DS) is proposed. The proposed approach similar to steganography methods hides the secure message in a host image. However, it uses a patch-based key to encode/decode the data like cryptography...

In this paper a new patch-based digital signature (DS) is suggested. The proposed approach similar to steganography methods hides the secure message in a host image. However, it uses a patch-based key to code/decode the data like cryptography...