An anonymous signcryption scheme based on one-off public key

One-off public key can not only achieve the security of user´s privacy, its traceability can also reveal the malicious user´s identity together with the trusted center. At present, At present, being proposed by many scholars, most one-off public key schemes, however, still not secure at present—whose private key, certification and signature been counterfeited by malicious users. The research of anonymous signcryption based on one-off public key is almost vacant. This paper proposes a new anonymous signcryption scheme based on one-off public key which has an efficient algorithm, and what´s more, whose anonymity and traceabihty can prevent attack from untrusted clients and malicious users.