digital signature
If the Java applet written by applet If there is no signature, then the access client program will be subject to safety restrictions; how to pay attention to the Java small program signature, there are also these aspects available for reference, but they are not complete Here I give a specific operational document, I hope to give you some help.
Scenario: Test.jar: Java apparatus with signature
Result: After signing, the client can automatically download the Java applet, and the Java applet can access any resources of the client.
step:
(1) Package Java applet
Jar CVF Test.jar Test.class
(2) Generate a keystore named chinani.Store, alias for chinani
Keytool -Genkey-Keystore chinani.Store -Alias chinani
Password: 123456 (input as needed)
The following is input as needed, and finally confirmed: Y
(3) Export Chinani.CER Digital Certificate
Keytool -Export-Keystore chinani.Store -Alaias chinani -file chinani.cer
Password: 123456 (input as needed)
(4) Signature Test.jar files
Jarsigner -keystore chinani.store test.jar chinani
Password: 123456 (input as needed)
Finally write an HTML file, run this file to automatically download and install the Java applet
New Page 1 </ Title></p>
<p></ hEAD></p>
<p><body></p>
<p><! - Can download JRE package automatically -></p>
<p><Object</p>
<p>ClassID = "CLSID: cafeefac-0014-0000-0000-abcdeffedcba"</p>
<p>Width = 300 height = 300</p>
<p>Codebase = "jinstall-1_4_0-win.cab # version = 1, 4, 0, 0"></p>
<p><Param name = code value = "Test.class"></p>
<p><Param name = Archive value = "test.jar"></p>
<p><Param name = "type" value = "Application / X-java-applet; jpi-version = 1.4"></p>
<p><Param name = "scriptable" value = "false"></p>
<p></ Object></p>
<p></ body></p>
<p></ html></p></div><div class="text-center mt-3 text-grey">
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var debug = DEBUG = 0;
var url_rewrite_on = 1;
var url_path = './';
var forumarr = {"1":"Tech"};
var fid = 1;
var uid = 0;
var gid = 0;
xn.options.water_image_url = 'view/img/water-small.png';
</script><script src="view/js/wellcms.js?2.2.0"></script><a class="scroll-to-top rounded" href="javascript:void(0);"><i class="icon-angle-up"></i></a><a class="scroll-to-bottom rounded" href="javascript:void(0);" style="display: inline;"><i class="icon-angle-down"></i></a></body></html><script>
var forum_url = 'list-1.html';
var safe_token = 'K7mDhOdySFE4hfWwV9r_2BiYK7t6v1YSD1SHAOyy4ZQl6A5Xy7Uui9J_2Fum1Y7xZyIURj7225tYv1gj0S3gQcsRJw_3D_3D';
var body = $('body');
body.on('submit', '#form', function() {
var jthis = $(this);
var jsubmit = jthis.find('#submit');
jthis.reset();
jsubmit.button('loading');
var postdata = jthis.serializeObject();
$.xpost(jthis.attr('action'), postdata, function(code, message) {
if(code == 0) {
location.reload();
} else {
$.alert(message);
jsubmit.button('reset');
}
});
return false;
});
function resize_image() {
var jmessagelist = $('div.message');
var first_width = jmessagelist.width();
jmessagelist.each(function() {
var jdiv = $(this);
var maxwidth = jdiv.attr('isfirst') ? first_width : jdiv.width();
var jmessage_width = Math.min(jdiv.width(), maxwidth);
jdiv.find('img, embed, iframe, video').each(function() {
var jimg = $(this);
var img_width = this.org_width;
var img_height = this.org_height;
if(!img_width) {
var img_width = jimg.attr('width');
var img_height = jimg.attr('height');
this.org_width = img_width;
this.org_height = img_height;
}
if(img_width > jmessage_width) {
if(this.tagName == 'IMG') {
jimg.width(jmessage_width);
jimg.css('height', 'auto');
jimg.css('cursor', 'pointer');
jimg.on('click', function() {
});
} else {
jimg.width(jmessage_width);
var height = (img_height / img_width) * jimg.width();
jimg.height(height);
}
}
});
});
}
function resize_table() {
$('div.message').each(function() {
var jdiv = $(this);
jdiv.find('table').addClass('table').wrap('<div class="table-responsive"></div>');
});
}
$(function() {
resize_image();
resize_table();
$(window).on('resize', resize_image);
});
var jmessage = $('#message');
jmessage.on('focus', function() {if(jmessage.t) { clearTimeout(jmessage.t); jmessage.t = null; } jmessage.css('height', '6rem'); });
jmessage.on('blur', function() {jmessage.t = setTimeout(function() { jmessage.css('height', '2.5rem');}, 1000); });
$('#nav li[data-active="fid-1"]').addClass('active');
</script>
