办公自动化系统中数字签名应用研究

数字签名是保证信息安全的一种重要手段,针对安全要求级别不同的办公自动化系统信息,利用椭圆曲线数字签名算法（ECDSA）具有较短的密钥长度和较高的安全强度,及公钥加密算法（RSA）具有密钥加解密的可逆性特点,设计了两种不同的方案,即基于RSA密钥的原文及其摘要签名策略,及基于RSA和ECC的3套密钥签名策略,并对方案的功能性和安全性进行了分析,保障办公信息的身份认证和传输的完整性和保密性,解决了办公自动化系统存在的一些安全隐患。

Application of Digital Signature to Office Automation System

Digital signature is an important means for guaranteeing the information security.For the different infosec requirements in office automation system,ECDSA algorithm with fairly short key length and high security strength,and RSA with reversible crypt/decrypt key,two different signature schemes are designed,that is,RSA-based signature strategy of original text and digest,and three sets of key signature strategy based on RSA and ECC.The functionality and the security of these two schemes are analyzed,thus to guarantee the ID authentication of official information and the integrity and confidentiality of transfer,and properly solve the problem of security hidden-danger in office automation system.