In a multi-proxy signature scheme, an original signer could authorize a proxy group as his
proxy agent. Then only the cooperation of all the signers in the proxy group can generate the …

A proxy signature scheme enables an original signer to delegate its signing capability to a
proxy signer and then the proxy signer can sign a message on behalf of the original signer …

In the security domain, wide variety of signature schemes are available for providing
confidentiality, Integrity and non-repudiation. Proxy signature schemes which are variant of …

As modern cryptographic schemes rely their security on the secrecy of the private keys used
in them, exposing such keys results in a total loss of security. In fact, attackers have been …

Cryptographic computations are often carried out on insecure devices for which the threat of
key exposure raises a serious concern. In an effort to address the key exposure problem, the …

Proxy ring signature allows proxy signer to sign messages on behalf of the original signer
while providing anonymity. Certificateless public key cryptography was first introduced by Al …

In order to deal with key exposure problem, we introduce forward secure technique into
certificateless proxy signature scheme, and propose the formal definition and security model …

In this paper, we study the compartment-based and hierarchical delegation of signing power
of the verifiable accountable subgroup multi-signature (vASM). ASM is a multi-signature in …

In order to deal with key exposure problem, we introduce forward secure technique into
certificateless proxy multi-signature scheme, and give the formal definition and security …

Using our (t, n) threshold proxy signature scheme, the original signer can delegate the
power of signing messages to a designated proxy group of n members. Any t or more proxy …