double key system meaning in English

双键固定

The private key system is also called the single key system , its encryption process is the same as its decryption process . the public key system is also called the double key system , its encryption process is different with its decryption process . because the public key system can publish its public key and only keep its private key secret , it has many new functions such as the digital signature and authentication , which is widely used in every area of the society
私钥体制又称单钥体制，其加密过程和解密过程相同；公钥体制又称为双钥体制，其加、解密密钥不同，可以公开加密密钥，而仅需保密解密密钥，从而具有数字签名、鉴别等新功能，被广泛应用于金融、商业等社会生活各领域。