| Title | : | Identity-based Group Encryption revisited |
| Speaker | : | Kanika Gupta (IITM) |
| Details | : | Tue, 5 Feb, 2019 2:30 PM @ A M Turing Hall |
| Abstract: | : | A group encryption scheme allows a sender to prepare a ciphertext and convince a verifier that it can be decrypted by a member of the PKI group. As in a group signature, in a group encryption there can be an opening authority that when the appropriate circumstances are triggered it can reveal the identity of the group member who is the recipient of the ciphertext. A group encryption provides receiver anonymity in the same way that a group
signature provides sender anonymity. Summary of work :- We have Identified weakness in the anonymity of first Identity-based Group Encryption Scheme. Also, we have Designed an efficient Identity-based Group Encryption Scheme with properties of anonymity, semantic security and traceability. |
