Add to ORKGA group encryption scheme allows anyone to form a ciphertext for a given group member while keeping the receiver\u27s identity private. At the same time, the encryptor is capable of proving that some (anonymous) group member is able to decrypt the ciphertext and, optionally, that the corresponding plaintext satisfies some \apriori\ relation (to prevent sending bogus messages). Finally, in case of a dispute, the identity of the intended receiver can be recovered by a designated authority. In this paper, we abstract a generic approach to construct group encryption schemes. We also introduce several new implementation tricks. As a result, we obtain group encryption schemes that significantly improve the state of the art. Both interactive ...
Abstract. Group encryption (GE) is the encryption analogue of group signatures. It allows a sender t...
In the last decades, several signcryption schemes have been developed for different privacy-enhancin...
In the last decades, several signcryption schemes have been developed for different privacy-enhancin...
Abstract. A group encryption scheme allows anyone to form a ciphertext for a given group member whil...
Abstract. Anonymity is one of the main concerns in group-oriented cryptography. However, most effort...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
We generalise and improve the security and efficiency of the verifiable encryption scheme of Asokan ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
Group signatures make it possible for group members to sign messages on behalf of the group, while n...
Group signatures make it possible for group members to sign messages on behalf of the group, while n...
Group encryption (GE) is the encryption analogue of group signatures. It allows a sender to verifiab...
Computer networks bring tremendous progress to the information-based society. Com- panies, organizat...
Abstract. Group encryption (GE) is the encryption analogue of group signatures. It allows a sender t...
In the last decades, several signcryption schemes have been developed for different privacy-enhancin...
In the last decades, several signcryption schemes have been developed for different privacy-enhancin...
Abstract. A group encryption scheme allows anyone to form a ciphertext for a given group member whil...
Abstract. Anonymity is one of the main concerns in group-oriented cryptography. However, most effort...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
We generalise and improve the security and efficiency of the verifiable encryption scheme of Asokan ...
In this thesis, we study provably secure privacy-preserving cryptographic constructions.We focus on ...
Group signatures make it possible for group members to sign messages on behalf of the group, while n...
Group signatures make it possible for group members to sign messages on behalf of the group, while n...
Group encryption (GE) is the encryption analogue of group signatures. It allows a sender to verifiab...
Computer networks bring tremendous progress to the information-based society. Com- panies, organizat...
Abstract. Group encryption (GE) is the encryption analogue of group signatures. It allows a sender t...
In the last decades, several signcryption schemes have been developed for different privacy-enhancin...
In the last decades, several signcryption schemes have been developed for different privacy-enhancin...