3com S7906E インストール手順

 

1-2 

z 

Encryption/decryption: The information encrypted with a receiver's public key can be decrypted by 

the receiver possessing the corresponding private key. This is used to ensure confidentiality. 

z 

Digital signature: The information encrypted with a sender's private key can be decrypted by 

anyone who has access to the sender's public key, thereby proving that the information is from the 

sender and has not been tampered with. For example, user 1 adds a signature to the data using the 

private key, and then sends the data to user 2. User 2 verifies the signature using the public key of 

user 1. If the signature is correct, the data is considered from user 1. 

Revest-Shamir-Adleman Algorithm (RSA) and Digital Signature Algorithm (DSA) are all asymmetric key 

algorithms. RSA can be used for data encryption/decryption and signature, whereas DSA is used for 

signature only. 

 

Asymmetric key algorithms are usually used in digital signature applications for peer identity 

authentication because they involve complex calculations and are time-consuming; symmetric key 

algorithms are often used to encrypt/decrypt data for security. 

 

You can create and destroy a local asymmetric key pair, and export the host public key of a local 

asymmetric key pair. 

Follow these steps to create an asymmetric key pair: 

Enter system view 

— 

Create a local DSA key pair, or 
RSA key pairs 

public-key local create { dsa | 
rsa } 

Required 

By default, there is no such key 
pair.