Provably Secure Multi-identity Single-key Decryption Scheme in the Standard Model
Liaojun Pang · 2010
Multi-Identity Single-Key Decryption (MISKD) scheme is a variant of Identity-Based Encryption (IBE) where a private decryption key can map multiple public keys (identities).More exactly,a single private key can be used to decrypt multiple ciphertexts encrypted with different public keys.Based on the bilinear pairings,the MISKD scheme was presented and was provably secure in the standard model.The proposed scheme was proven secure against indistinguishably in adaptively chosen ciphertext and identity under the decision q-TBDHE assumption.