Cryptograph index technology based on multi buckets partition .

基于多重桶划分的密文索引技术。

Information security techniques-specifications of cryptograph and related security technology for certificate authentication system .

证书认证系统密码及其相关安全技术规范。

Cryptology is the core of the information security . Modern cryptograph divides into the public key system and the private key system .

密码学是信息安全技术的核心，现代密码体制分为公钥体制和私钥体制两大类。