java数字签名的讲解

Verifying a Signature

First

Alice：

alice Creates a keystore, alice.certs, and generates a key pair with alias alice：

keytool -genkeypair -keystore alice.certs -alias alice

export a cercate le:

keytool -exportcert -keystore alice.certs -alias alice -le alice.cer

Bob：

and veries JAR les. Alice simply adds the document to be signed into a JAR

le.

jar cvf document.jar document.txt

Then she uses the jarsigner tool to add the signature to the le. She needs to specify the

keystore, the JAR le, and the alias of the key to use

jarsigner -keystore alice.certs document.jar alice

When Bob receives the le, he uses the -verify opon of the jarsigner program

jarsigner -verify -keystore bob.certs document.jar