@article{李进_150, author = {[李进, 张方国, 王燕鸣]}, title = {两个高效的基于分级身份的签名方案}, publisher = {电子学报}, year = {2007}, journal = {电子学报}, volume = {35}, number = {1}, eid = {150}, pages = {150-152}, keywords = {基于身份的签名;分级的;双线性对;可证明安全}, url = https://www.ejournal.org.cn/CN/abstract/article_5857.shtml }