The invention discloses an identity authentication method based on identity, a confidential communication method, an equipment and a system, belonging to the field of network communication technology. The method includes: a receiving party receives a message, the message carries on the specified field in the message signature, the signature private key is generated based on the identification and the first additional parameter of the public key of the sender identification; and the first public key additional parameters of the receiver using the sender to verify the signature. The system comprises a sender device and a receiver device. The invention also provides a secure communication method, a sender device and a receiver device. The present invention by public key identification and additional parameters of the user as the user's public key, the public key used to sign the corresponding private key, the message authentication and integrity protection, and the signer for a new private key in the private key leakage, without changing identification, and ensure the normal use of the business and user experience.
【技术实现步骤摘要】
【技术保护点】
一种基于身份的认证方法,其特征在于,所述方法包括: 接收方接收消息,所述消息携带对所述消息中指定字段的签名,所述签名使用的私钥是根据发送方的公钥标识和第一公钥附加参数生成的,所述发送方的公钥包括发送方的标识和第一公钥附加参数; 所述接收方使用所述发送方的公钥对所述签名进行验证。
【技术特征摘要】
【专利技术属性】
技术研发人员:江为强,高洪涛,辛阳,杨亚涛,杨义先,
申请(专利权)人:华为技术有限公司,北京邮电大学,
类型:发明
国别省市:94[中国|深圳]
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