Structured report was designed with six function modules including basic item area, image sign area, diagnostic impression area, advice area, signature area, and picture area by application of programming language such as Delphi 6.0 and VC ++6.0.DICOM.
A Group Signature allows any member of a group to digitally sign a document in a manner such that a verifier can confirm that it came from the group ,but does not know which individual in the group signed the document.
The protocol, which was obtained by combining the ElGamal encryption scheme with the ElGamal signature scheme, is efficient and simple.
Ring signature allows specifying a set of possible signers without revealing which member actually produces the signature.
In this paper, we review the state-of-the-art of ring signature, summarize the study of ring signature schemes in the literature and investigate their relationships with other existing cryptographic schemes.
A strong multi-designated verifiers signature scheme
Boneh's one round multi-party key agreement protocol, this paper proposes a multi-designated verifiers signature scheme.
Cryptanalysis on AW digital signature scheme based on error-correcting codes
In 1993, Alabhadi and Wicker gave a modification to Xinmei Digital Signature Scheme based on error-correcting codes, which is usually denoted by AW Scheme.
We also point out that one can hardly construct a digital signature scheme with high-level security due to the difficulty of decomposing large matrixes.
Threshold digital signature and blind signature are playing important roles in cryptography as well as in practical applications such as e-cash and e-voting systems.
In this paper, a new anonymity controlled E-cash scheme based on ECC for the first time and using a new technology-one-time key pairs digital signature is designed, and its security and efficiency are analyzed.