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In 1998, Blaze, Bleumer, and Strauss propose a kind of cryptographic primitive called proxy re-encryption. In proxy re-encryption, a proxy can transform a ciphertext computed under Alice's public key into one that can be opene under Bob's decryption key. In 2007, mainly motivated b making different types of ciphertext circulate smoothly in the network, Matsuo proposed the concept of four types of...
In 1998, Blaze, Bleumer, and Strauss proposed a kind of cryptographic primitive called proxy re-encryption. In proxy re-encryption, a proxy can transform a ciphertext computed under Alice's public key into one that can be opened under Bob's decryption key. In this paper, with the help of the PKG, we construct a CCA-secure identity based proxy reencryption scheme based on a variant of BBi identity...
In 1998, Blaze, Bleumer, and Strauss proposed a kind of cryptographic primitive called proxy re-encryption. In proxy re-encryption, a proxy can transform a ciphertext computed under Alice's public key into one that can be opened under Bob's decryption key. They predicated that proxy re-encryption and re-signature will play an important role in our life. In 2007, Matsuo proposed the concept of four...
Multi-receiver signcryption is a new cryptographic primitive that simultaneously fulfills both the functions of signature and multi-receiver encryption. Generalized Multi-Receiver signcryption can provide authenticity or confidentiality separately under specific inputs. Based on ECDSA, a generalized Multi-Receiver signcryption scheme is designed. It will be equivalent to ECDSA or multi-receiver encryption...
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