{"id":11456,"date":"2024-05-29T12:16:21","date_gmt":"2024-05-29T12:16:21","guid":{"rendered":"https:\/\/symlexvpn.com\/?p=11456"},"modified":"2025-12-28T09:39:49","modified_gmt":"2025-12-28T09:39:49","slug":"difference-between-256-and-128","status":"publish","type":"post","link":"https:\/\/symlexvpn.com\/zh\/difference-between-256-and-128\/","title":{"rendered":"AES-256 \u4e0e AES-128\uff1a\u5934\u5bf9\u5934"},"content":{"rendered":"<p>\u6211\u4eec\u90fd\u81f3\u5c11\u542c\u8bf4\u8fc7\u4e00\u6b21 AES \u52a0\u5bc6\uff0c\u4f46\u60a8\u77e5\u9053\u8fd9\u79cd\u51fa\u8272\u7684\u52a0\u5bc6\u6280\u672f\u80cc\u540e\u7684\u4eba\u662f\u8c01\u5417\uff1f\u5b83\u7684\u539f\u540d\u662f <a href=\"https:\/\/www.techtarget.com\/searchsecurity\/definition\/Rijndael\">Rijndael \u52a0\u5bc6<\/a>\uff0c\u7531\u4e24\u4f4d\u6bd4\u5229\u65f6\u5bc6\u7801\u5b66\u5bb6 Vincent Rijmen \u548c Joan Daemen \u5f00\u53d1\u3002<\/p>\n\n\n\n<p>\u76ee\u524d\u5b83\u4f5c\u4e3a AES \u52a0\u5bc6\u7b97\u6cd5\u88ab\u7f8e\u56fd\u8054\u90a6\u653f\u5e9c\u3001\u519b\u961f\u3001\u6267\u6cd5\u673a\u6784\u3001 <a href=\"https:\/\/symlexvpn.com\/zh\/what-is-a-vpn\/\">\u865a\u62df\u4e13\u7528\u7f51\u7edc<\/a>\uff0c\u4ee5\u53ca\u7f51\u7edc\u5b89\u5168\u670d\u52a1\uff0c\u56e0\u5176\u7262\u4e0d\u53ef\u7834\u7684\u5b89\u5168\u6027\u548c\u5f3a\u5ea6\u3002<\/p>\n\n\n\n<p><strong>\u4e00\u822c\u6765\u8bf4\uff0cAES-256 \u6bd4 AES-128 \u4f4d\u52a0\u5bc6\u66f4\u5f3a\u5927\u3001\u66f4\u5feb\u4e14\u66f4\u5b89\u5168\u3002\u4f46\u662f\uff0c\u4f5c\u4e3a\u666e\u901a\u7528\u6237\uff0c\u60a8\u4e0d\u4f1a\u611f\u89c9\u5230\u4efb\u4f55\u5dee\u5f02\u3002&nbsp;<\/strong><\/p>\n\n\n\n<p><strong>AES 128 \u4f4d\u8db3\u591f\u5f3a\u5927\uff0c\u53ef\u4ee5\u6ee1\u8db3\u57fa\u672c\u7684\u5b89\u5168\u9700\u6c42\u3002 AES-256 \u7b97\u6cd5\u4e13\u4e3a\u4f01\u4e1a\u7ea7\u5b89\u5168\u800c\u8bbe\u8ba1\u3002<\/strong><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1266\" height=\"520\" src=\"https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/Same-Key.jpg\" alt=\"\" class=\"wp-image-12342\" srcset=\"https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/Same-Key.jpg 1266w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/Same-Key-300x123.jpg 300w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/Same-Key-1024x421.jpg 1024w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/Same-Key-856x352.jpg 856w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/Same-Key-18x7.jpg 18w\" sizes=\"auto, (max-width: 1266px) 100vw, 1266px\" \/><\/figure>\n\n\n\n<p class=\"has-text-align-center\"><a href=\"https:\/\/www.atpinc.com\/blog\/what-is-aes-256-encryption\">Image So<\/a><a href=\"https:\/\/www.atpinc.com\/upload\/images\/2020\/04-22\/4e79465eb02f4422a7c4bba9f99ffa09.jpg\">urce<\/a><\/p>\n\n\n\n<p><\/p>\n\n\n\n<div class=\"wp-block-yoast-seo-table-of-contents yoast-table-of-contents\"><h2>\u76ee\u5f55<\/h2><ul><li><a href=\"#h-what-is-the-advanced-encryption-standard-aes\" data-level=\"2\">\u4ec0\u4e48\u662f\u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6 (AES)\uff1f<\/a><\/li><li><a href=\"#h-brief-comparison-at-a-glance\" data-level=\"2\">Brief Comparison At a Glance<\/a><\/li><li><a href=\"#h-aes-256-the-stronger-sibling\" data-level=\"2\">AES-256\uff1a\u66f4\u5f3a\u7684\u5144\u5f1f\u59d0\u59b9<\/a><\/li><li><a href=\"#h-aes-128-the-efficient-alternative\" data-level=\"2\">AES-128\uff1a\u9ad8\u6548\u7684\u66ff\u4ee3\u65b9\u6848<\/a><\/li><li><a href=\"#h-choosing-the-right-aes-variant\" data-level=\"2\">\u9009\u62e9\u6b63\u786e\u7684 AES \u53d8\u4f53<\/a><\/li><li><a href=\"#h-wrapping-up\" data-level=\"2\">\u5305\u8d77\u6765<\/a><\/li><\/ul><\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-is-the-advanced-encryption-standard-aes\">\u4ec0\u4e48\u662f\u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6 (AES)\uff1f<\/h2>\n\n\n\n<p><\/p>\n\n\n\n<p>\u8fd9 <a href=\"https:\/\/en.wikipedia.org\/wiki\/Advanced_Encryption_Standard\">\u9ad8\u7ea7\u52a0\u5bc6\u6807\u51c6 (AES)<\/a> \u662f\u4e00\u79cd\u5e7f\u6cdb\u4f7f\u7528\u7684\u5bf9\u79f0\u5bc6\u94a5\u52a0\u5bc6\u7b97\u6cd5\uff0c\u7528\u4e8e\u4fdd\u62a4\u654f\u611f\u6570\u636e\u3002&nbsp;<\/p>\n\n\n\n<p>\u5b83\u7531\u7f8e\u56fd\u56fd\u5bb6\u6807\u51c6\u4e0e\u6280\u672f\u7814\u7a76\u9662 (NIST) \u7ecf\u8fc7\u6f2b\u957f\u7684\u6807\u51c6\u5316\u8fc7\u7a0b\u548c\u516c\u5f00\u7ade\u4e89\u4e8e 2001 \u5e74\u5efa\u7acb\u3002&nbsp;<\/p>\n\n\n\n<p>\u4ece\u90a3\u65f6\u8d77\uff0cAES \u5df2\u6210\u4e3a\u4e8b\u5b9e\u4e0a\u7684\u52a0\u5bc6\u6807\u51c6\uff0c\u5e76\u7528\u4e8e\u5404\u79cd\u5e94\u7528\u7a0b\u5e8f\u548c\u534f\u8bae\u4e2d\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-brief-comparison-at-a-glance\">Brief Comparison At a Glance<\/h2>\n\n\n\n<p><strong>\u4ee5\u4e0b\u662f AES-256 \u4e0e AES-128 \u4f4d\u52a0\u5bc6\u7684\u7b80\u8981\u6bd4\u8f83\u8868\u3002<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-table\"><table><tbody><tr><td><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">\u7279\u5f81<\/mark><\/strong><\/td><td><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">AES-256<\/mark><\/strong><\/td><td class=\"has-text-align-left\" data-align=\"left\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-green-cyan-color\">AES-128<\/mark><\/strong><\/td><\/tr><tr><td><strong>\u94a5\u5319\u5c3a\u5bf8<\/strong><\/td><td>256\u4f4d<\/td><td class=\"has-text-align-left\" data-align=\"left\">128\u4f4d<\/td><\/tr><tr><td><strong>\u5b89\u5168\u7ea7\u522b<\/strong><\/td><td>\u7531\u4e8e\u5bc6\u94a5\u5c3a\u5bf8\u8f83\u5927\uff0c\u5b89\u5168\u7ea7\u522b\u66f4\u9ad8<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u5bf9\u4e8e\u5927\u591a\u6570\u5e94\u7528\u7a0b\u5e8f\u6765\u8bf4\u88ab\u8ba4\u4e3a\u662f\u5b89\u5168\u7684<\/td><\/tr><tr><td><strong>\u66b4\u529b\u62b5\u6297<\/strong><\/td><td>\u66f4\u5f3a\u7684\u62b5\u6297\u66b4\u529b\u653b\u51fb\u7684\u80fd\u529b<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0e AES-256 \u76f8\u6bd4\uff0c\u7535\u963b\u66f4\u4f4e<\/td><\/tr><tr><td><strong>\u8868\u73b0<\/strong><\/td><td>\u7531\u4e8e\u5bc6\u94a5\u8f83\u5927\uff0c\u6bd4 AES-128 \u7a0d\u6162<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u6bd4 AES-256 \u66f4\u5feb<\/td><\/tr><tr><td><strong>\u80fd\u6e90\u6d88\u8017<\/strong><\/td><td>\u66f4\u9ad8\u7684\u80fd\u8017\uff08\u4e0e\u79fb\u52a8\u8bbe\u5907\u76f8\u5173\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u964d\u4f4e\u80fd\u6e90\u6d88\u8017<\/td><\/tr><tr><td><strong>\u786c\u4ef6\u652f\u6301<\/strong><\/td><td>\u73b0\u4ee3\u786c\u4ef6\u5e7f\u6cdb\u652f\u6301<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u73b0\u4ee3\u786c\u4ef6\u5e7f\u6cdb\u652f\u6301<\/td><\/tr><tr><td><strong>\u7528\u4f8b<\/strong><\/td><td>\u63a8\u8350\u7528\u4e8e\u9ad8\u5b89\u5168\u6027\u5e94\u7528\uff08\u4f8b\u5982\u653f\u5e9c\u3001\u519b\u4e8b\u3001\u91d1\u878d\uff09<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u9002\u5408\u5927\u591a\u6570\u5546\u4e1a\u5e94\u7528<\/td><\/tr><tr><td><strong>\u517c\u5bb9\u6027<\/strong><\/td><td>\u4e0e\u65e7\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u517c\u5bb9<\/td><td class=\"has-text-align-left\" data-align=\"left\">\u4e0e\u65e7\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u517c\u5bb9<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-aes-256-the-stronger-sibling\">AES-256\uff1a\u66f4\u5f3a\u7684\u5144\u5f1f\u59d0\u59b9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-key-size\">\u94a5\u5319\u5c3a\u5bf8<\/h3>\n\n\n\n<p>\u987e\u540d\u601d\u4e49\uff0c <strong>AES-256 bit<\/strong> \u6709\u4e00\u4e2a <a href=\"https:\/\/learn.microsoft.com\/en-us\/dotnet\/api\/system.security.cryptography.aescryptoserviceprovider.keysize?view=net-8.0\">\u5bc6\u94a5\u5927\u5c0f\u4e3a 256 \u4f4d<\/a>\u3002\u7531\u4e8e\u5bc6\u94a5\u6570\u91cf\u5fae\u4e0d\u8db3\u9053\uff0c\u5b83\u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u522b\u7684\u5b89\u5168\u6027\u3002&nbsp;<\/p>\n\n\n\n<p>\u5bc6\u94a5\u957f\u5ea6\u8d8a\u5927\u610f\u5473\u7740\u8d8a\u96be\u7834\u89e3\u3002 AES 256 \u4f4d\u52a0\u5bc6 <strong>2^256 \u4e2a\u952e<\/strong>\uff0c\u4f7f\u9ed1\u5ba2\u66f4\u96be\u8fdb\u884c\u66b4\u529b\u653b\u51fb\u3002&nbsp;<\/p>\n\n\n\n<p>\u5373\u4f7f\u5177\u6709\u9ad8\u5f97\u79bb\u8c31\u7684\u5904\u7406\u80fd\u529b\u7684\u91cf\u5b50\u8ba1\u7b97\u673a\u4e5f\u4f1a\u5360\u636e\u4e3b\u5bfc\u5730\u4f4d <strong>3.31 x 10<\/strong><strong><sup>56<\/sup><\/strong> \u7834\u89e3 AES-256 \u4f4d\u52a0\u5bc6\u9700\u8981\u6570\u5e74\u65f6\u95f4\uff08\u65e0\u8bba\u5982\u4f55\u8fd9\u90fd\u4e0d\u4f1a\u53d1\u751f\uff09\u3002&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-security-level\">\u5b89\u5168\u7ea7\u522b<\/h3>\n\n\n\n<p>AES-256 \u4f4d\u52a0\u5bc6\u88ab\u8ba4\u4e3a\u662f\u73b0\u6709\u7684\u6700\u5f3a\u52a0\u5bc6\u7b97\u6cd5\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5b83\u4e5f\u88ab\u79f0\u4e3a <strong>\u519b\u7528\u7ea7\u52a0\u5bc6<\/strong>\u3002 AES 256 \u4f9b\u7f8e\u56fd\u8054\u90a6\u653f\u5e9c\u3001\u519b\u961f\u3001\u94f6\u884c\u548c\u6267\u6cd5\u673a\u6784\u7b49\u5176\u4ed6\u7ec4\u7ec7\u4f7f\u7528\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-brute-force-resistance\">\u66b4\u529b\u62b5\u6297<\/h3>\n\n\n\n<p>AES-256 \u7684\u5bf9\u6297\u80fd\u529b\u6781\u5f3a <strong>\u66b4\u529b\u653b\u51fb<\/strong>\u3002\u7531\u4e8e\u5bc6\u94a5\u5c3a\u5bf8\u8f83\u5927\uff0c\u8d85\u7ea7\u8ba1\u7b97\u673a\u9700\u8981\u6570\u4e07\u4ebf\u5e74\u624d\u80fd\u7834\u89e3\u548c\u7834\u8bd1 AES-256 \u5bc6\u94a5\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u7f8e\u56fd <a href=\"https:\/\/blog.winzip.com\/military-grade-encryption\">\u653f\u5e9c\u548c\u519b\u961f\u4f7f\u7528 AES<\/a> \u7528\u4e8e\u5b89\u5168\u901a\u4fe1\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-performance\">\u8868\u73b0<\/h3>\n\n\n\n<p>\u7531\u4e8e\u5bc6\u94a5\u5927\u5c0f\u8f83\u5927\uff0cAES-256 \u4f4d\u76f8\u5bf9\u8f83\u6162\u3002 AES 256 \u4e2d\u7684\u52a0\u5bc6\u6d89\u53ca\u591a\u8f6e\u6570\u636e\u66ff\u6362\u3001\u6392\u5217\u548c\u6df7\u5408\u3002&nbsp;<\/p>\n\n\n\n<p>\u8fd9\u79cd\u590d\u6742\u7684\u52a0\u5bc6\u8fc7\u7a0b\u7a0d\u5fae\u5f71\u54cd\u4e86\u6027\u80fd\uff0c\u4f46\u727a\u7272\u4e86\u5f3a\u5927\u7684\u5b89\u5168\u6027\u3002\u7531\u4e8e\u5bc6\u94a5\u957f\u5ea6\u8f83\u5927\uff0c\u653b\u51fb\u8005\u7834\u89e3\u548c\u7834\u8bd1\u6570\u636e\u53d8\u5f97\u5177\u6709\u6311\u6218\u6027\uff0c\u786e\u4fdd <strong>\u957f\u671f\u5b89\u5168<\/strong> \u5728\u91cf\u5b50\u8ba1\u7b97\u65f6\u4ee3\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-energy-consumption\">\u80fd\u6e90\u6d88\u8017<\/h3>\n\n\n\n<p>AES 256 \u4f4d\u7531\u4e8e\u5176\u80fd\u8017\u8f83\u9ad8 <strong>\u91cd\u5ea6\u52a0\u5bc6<\/strong>\uff0c\u8fd9\u9700\u8981\u66f4\u591a\u7684\u8ba1\u7b97\u80fd\u529b\u3002\u4e0d\u540c\u7684 AES \u64cd\u4f5c\u6a21\u5f0f\uff08\u4f8b\u5982 ECB\u3001CBC\u3001CFB \u548c CTR\uff09\u5bf9\u80fd\u8017\u7684\u5f71\u54cd\u4e0d\u540c\u3002<\/p>\n\n\n\n<p>\u6b64\u5916\uff0c\u6027\u80fd\u53d6\u51b3\u4e8e\u786c\u4ef6\u548c\u8f6f\u4ef6\u5b9e\u73b0\u4ee5\u53ca\u52a0\u5bc6\u6807\u51c6\u7684\u5bc6\u94a5\u5927\u5c0f\u3002\u89e3\u5bc6\u7684\u5e73\u5747\u80fd\u8017\u4e3a <strong>\u7ea630%<\/strong> \u6bd4\u5176\u4ed6\u52a0\u5bc6\u66f4\u591a\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hardware-support\">\u786c\u4ef6\u652f\u6301<\/h3>\n\n\n\n<p>AES 256 \u52a0\u5bc6\u88ab\u5e7f\u6cdb\u4f7f\u7528\u5e76\u53d7\u5230\u6240\u6709\u4e3b\u8981\u786c\u4ef6\u548c\u8f6f\u4ef6\u7684\u652f\u6301\u3002\u5b83\u53d7\u5230\u5404\u79cd CPU \u67b6\u6784\u7684\u652f\u6301\uff0c\u4f8b\u5982 <strong>x64\u3001x86 \u548c ARMv8<\/strong>.&nbsp;<\/p>\n\n\n\n<p>.NET \u6846\u67b6\u901a\u8fc7 AesCryptoServiceProvider \u7c7b\u652f\u6301\u786c\u4ef6 AES \u52a0\u901f\u3002\u914d\u5907 ARMv8 \u5904\u7406\u5668\u7684\u8def\u7531\u5668\u652f\u6301 AES \u52a0\u5bc6\uff0c\u4ece\u800c\u63d0\u9ad8\u6027\u80fd\u3002&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-use-cases\">\u7528\u4f8b<\/h3>\n\n\n\n<p>\u5230 2024 \u5e74\uff0c\u5b83\u5c06\u4e3b\u8981\u7528\u4e8e\u5b89\u5168\u901a\u4fe1\u3001\u94f6\u884c\u3001\u4fe1\u7528\u5361\u53d1\u884c\u673a\u6784\u3001\u6587\u4ef6\u5171\u4eab\u3001\u4e91\u5b89\u5168\u548c <strong>cybersecurity<\/strong>\uff0c\u4f8b\u5982\u865a\u62df\u4e13\u7528\u7f51\u7edc (VPN)\u3002\u5982\u4eca <a href=\"https:\/\/symlexvpn.com\/zh\/global-vpn-adoption-report\/\">VPN\u91c7\u7528\u7387<\/a> \u5bf9\u4e8e\u5728\u7ebf\u5b89\u5168\u7684\u8981\u6c42\u65e5\u76ca\u589e\u52a0\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u63d0\u4f9b\u5546\u503e\u5411\u4e8e\u4f7f\u7528\u73b0\u6709\u7684\u6700\u4f73\u4fdd\u62a4\u6765\u5b9e\u73b0\u5f3a\u5927\u7684\u6570\u636e\u5b89\u5168\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-compatibility\">\u517c\u5bb9\u6027<\/h3>\n\n\n\n<p>AE 256 \u4f4d\u517c\u5bb9 <strong>\u65e7\u786c\u4ef6<\/strong> \u548c\u5e94\u7528\u7a0b\u5e8f\u3002\u8fd9\u51cf\u5c11\u4e86\u6240\u6709\u5e73\u53f0\u4e0a\u8fc7\u65f6\u7684\u786c\u4ef6\u548c\u8f6f\u4ef6\u51fa\u73b0\u4e0d\u517c\u5bb9\u95ee\u9898\u7684\u53ef\u80fd\u6027\u3002<\/p>\n\n\n\n<p class=\"text-center\">\n  <a href=\"https:\/\/apps.apple.com\/ae\/app\/symlex-vpn-unlimited-fast-vpn\/id1476025535\" class=\"btn btn-md btn-green px-4 rounded-5 py-2 me-2\" target=\"_self\">\n     Download iPhone VPN App\n  <\/a>\n<br>\n<br>\n  <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=app.kismyo.vpn&amp;hl=en&amp;gl=US\" class=\"btn btn-md btn-outline-success px-4 rounded-5 py-2\" target=\"_self\">\n     Download Android VPN App\n  <\/a>\n<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-aes-128-the-efficient-alternative\">AES-128\uff1a\u9ad8\u6548\u7684\u66ff\u4ee3\u65b9\u6848<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-key-size-0\">\u94a5\u5319\u5c3a\u5bf8<\/h3>\n\n\n\n<p>AES-128 \u7531 <a href=\"https:\/\/sectigostore.com\/page\/what-is-128-bit-encryption\/\">128\u4f4d\u5bc6\u94a5<\/a> \u6bd4 AES-256 \u76f8\u5bf9\u8f83\u77ed\u3002\u5c3d\u7ba1\u5bc6\u94a5\u5927\u5c0f\u5f88\u5927\uff0c\u4f46 AES-128 \u662f\u4e00\u79cd\u5f3a\u5927\u7684\u52a0\u5bc6\u7b97\u6cd5\uff0c\u53ef\u63d0\u4f9b\u7262\u4e0d\u53ef\u7834\u7684\u5b89\u5168\u6027\u3002\u6839\u636e\u5bc6\u94a5\u5927\u5c0f\uff0c\u5927\u7ea6\u9700\u8981 <strong>1.02 x 10<\/strong><strong><sup>18<\/sup><\/strong><strong> years<\/strong> \u751a\u81f3\u8d85\u7ea7\u8ba1\u7b97\u673a\u4e5f\u80fd\u7834\u89e3\u548c\u7834\u8bd1\u52a0\u5bc6\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-security-level-0\">\u5b89\u5168\u7ea7\u522b<\/h3>\n\n\n\n<p>AES-128 offers the same security and protection as AES-256 bit. As a general user, you won\u2019t feel any difference; honestly, you don\u2019t need more than 128 bits of AES protection. AES-128 is enough for applications&#8217; day-to-day security standards.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-brute-force-resistance-0\">\u66b4\u529b\u62b5\u6297<\/h3>\n\n\n\n<p>AES-128 \u5bf9\u4e8e\u66b4\u529b\u653b\u51fb\u4e5f\u5177\u6709\u8d85\u5f3a\u7684\u80fd\u529b\u3002\u5373\u4f7f\u4f7f\u7528\u91cf\u5b50\u6280\u672f\uff0c\u7834\u89e3 AES-128 \u4f4d\u52a0\u5bc6\u4e5f\u9700\u8981 <strong>\u5341\u4ebf\u5e74<\/strong>.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"816\" height=\"301\" src=\"https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/KEYSIZE.png\" alt=\"KeySize\" class=\"wp-image-11472\" srcset=\"https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/KEYSIZE.png 816w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/KEYSIZE-300x111.png 300w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/KEYSIZE-18x7.png 18w\" sizes=\"auto, (max-width: 816px) 100vw, 816px\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-performance-0\">\u8868\u73b0<\/h3>\n\n\n\n<p>AES-128 \u4f4d\u6d89\u53ca\u7684\u52a0\u5bc6\u8fc7\u7a0b\u6bd4 AES-256 \u5c11\uff0c\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5b83 <strong>\u8868\u73b0\u7a0d\u597d\u4e00\u4e9b<\/strong>- \u52a0\u5bc6\u8d8a\u590d\u6742\uff0c\u9700\u8981\u7684\u8ba1\u7b97\u80fd\u529b\u5c31\u8d8a\u5f3a\uff0c\u4ece\u800c\u5f71\u54cd\u6574\u4f53\u6027\u80fd\u3002\u7531\u4e8e AES-128 \u4f4d\u52a0\u5bc6\u7684\u5bc6\u94a5\u957f\u5ea6\u8f83\u77ed\uff0c\u56e0\u6b64\u5b83\u6bd4 AES-256 \u7b80\u5355\u3002&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-energy-consumption-0\">\u80fd\u6e90\u6d88\u8017<\/h3>\n\n\n\n<p>AES-128 \u6bd4 AES-256 \u4f4d\u52a0\u5bc6\u6d88\u8017\u66f4\u5c11\u7684\u80fd\u91cf\uff0c\u56e0\u4e3a\u5b83\u9700\u8981 <strong>\u66f4\u5c11\u7684\u8d44\u6e90\u548c CPU \u529f\u7387<\/strong>\u3002\u5b83\u975e\u5e38\u9002\u5408\u9700\u8981\u66f4\u591a\u5f85\u673a\u529f\u7387\u7684\u4fbf\u643a\u5f0f\u8bbe\u5907\u3002&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-hardware-support-0\">\u786c\u4ef6\u652f\u6301<\/h3>\n\n\n\n<p>AES-128 \u52a0\u5bc6\u63d0\u4f9b <strong>\u4f18\u79c0\u7684\u786c\u4ef6\u652f\u6301<\/strong> similar to other AES ecnyptions. Many modern CPUs from Intel, AMD include dedicated instruction set extensions for accelerating AES operations\u2013AES-NI (Intel Advanced Encryption Standard New Instructions) and AMD&#8217;s AES instructions.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-use-cases-0\">\u7528\u4f8b<\/h3>\n\n\n\n<p>AES-128 \u901a\u5e38\u7528\u4e8e <strong>\u52a0\u5bc6\u6587\u4ef6<\/strong>\u5404\u79cd\u64cd\u4f5c\u7cfb\u7edf\u4e0a\u7684 \u3001\u6587\u4ef6\u5939\u548c\u6574\u4e2a\u78c1\u76d8\u5377\uff0c\u5305\u62ec Windows (BitLocker)\u3001macOS (FileVault) \u548c Linux\uff08LUKS\u3001eCryptfs\uff09\u3002\u5b83\u4e3a\u9759\u6001\u654f\u611f\u6570\u636e\uff08\u4f8b\u5982\u6587\u6863\u3001\u6570\u636e\u5e93\u548c\u5907\u4efd\uff09\u63d0\u4f9b\u673a\u5bc6\u6027\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"h-compatibility-0\">\u517c\u5bb9\u6027<\/h3>\n\n\n\n<p>AES-128 \u662f\u4e00\u79cd\u5e7f\u6cdb\u91c7\u7528\u7684 <strong>\u6807\u51c6\u5316\u52a0\u5bc6\u7b97\u6cd5<\/strong>\uff0c\u786e\u4fdd\u8de8\u4e0d\u540c\u5e73\u53f0\u3001\u64cd\u4f5c\u7cfb\u7edf\u548c\u5e94\u7528\u7a0b\u5e8f\u7684\u517c\u5bb9\u6027\u3002<\/p>\n\n\n\n<p>\u5b83\u53d7\u5230\u5404\u79cd\u8f6f\u4ef6\u548c\u786c\u4ef6\u4f9b\u5e94\u5546\u7684\u5e7f\u6cdb\u4f7f\u7528\u548c\u652f\u6301\uff0c\u4f7f\u5176\u6210\u4e3a\u4e0d\u540c\u7cfb\u7edf\u4e4b\u95f4\u5b89\u5168\u6570\u636e\u4ea4\u6362\u7684\u53ef\u9760\u9009\u62e9\u3002<\/p>\n\n\n\n<p><\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"871\" height=\"468\" src=\"https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/AESVARIANT.png\" alt=\"AES-128 is a widely adopted\" class=\"wp-image-11467\" srcset=\"https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/AESVARIANT.png 871w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/AESVARIANT-300x161.png 300w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/AESVARIANT-856x460.png 856w, https:\/\/symlexvpn.com\/wp-content\/uploads\/2024\/05\/AESVARIANT-18x10.png 18w\" sizes=\"auto, (max-width: 871px) 100vw, 871px\" \/><\/figure><\/div>\n\n\n<p class=\"has-text-align-center\">\u6765\u6e90\uff1a <a href=\"https:\/\/www.logsign.com\/\">https:\/\/www.logsign.com\/<\/a>&nbsp;<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-choosing-the-right-aes-variant\">\u9009\u62e9\u6b63\u786e\u7684 AES \u53d8\u4f53<\/h2>\n\n\n\n<p><strong>\u5728 AES-256 \u548c AES-128 \u4e4b\u95f4\u505a\u51fa\u9009\u62e9\u65f6\uff0c\u9700\u8981\u8003\u8651\u51e0\u4e2a\u56e0\u7d20\uff1a<\/strong><\/p>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u5b89\u5168\u8981\u6c42<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u4e0e AES-128 \u76f8\u6bd4\uff0cAES-256 \u63d0\u4f9b\u4e86\u66f4\u9ad8\u7ea7\u522b\u7684\u5b89\u5168\u6027\uff0c\u56e0\u4e3a\u5b83\u7684\u5bc6\u94a5\u957f\u5ea6\u66f4\u957f\uff08256 \u4f4d\u4e0e 128 \u4f4d\uff09\u3002\u5bc6\u94a5\u957f\u5ea6\u8d8a\u957f\uff0c\u7b97\u6cd5\u5bf9\u66b4\u529b\u653b\u51fb\u7684\u62b5\u6297\u529b\u5c31\u8d8a\u5f3a\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5efa\u8bae\u5c06 AES-256 \u7528\u4e8e\u9700\u8981\u8f83\u9ad8\u4fdd\u5bc6\u7ea7\u522b\u7684\u5e94\u7528\uff0c\u4f8b\u5982\u519b\u4e8b\u3001\u653f\u5e9c\u6216\u9ad8\u5ea6\u654f\u611f\u7684\u5546\u4e1a\u5e94\u7528\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u52a0\u5bc6\u6570\u636e\u6781\u5176\u6709\u4ef7\u503c\u6216\u654f\u611f\uff0c\u5e76\u4e14\u957f\u671f\u4fdd\u62a4\u81f3\u5173\u91cd\u8981\uff0c\u5219 AES-256 \u53ef\u80fd\u662f\u9996\u9009\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u6027\u80fd\u8981\u6c42<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5c31\u52a0\u5bc6\u548c\u89e3\u5bc6\u901f\u5ea6\u800c\u8a00\uff0cAES-128 \u901a\u5e38\u6bd4 AES-256 \u66f4\u5feb\uff0c\u5c24\u5176\u662f\u5728\u6ca1\u6709\u4e13\u7528 AES \u52a0\u901f\u7684\u786c\u4ef6\u4e0a\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5bf9\u4e8e\u5177\u6709\u9ad8\u541e\u5410\u91cf\u8981\u6c42\u6216\u5b9e\u65f6\u9650\u5236\u7684\u5e94\u7528\u7a0b\u5e8f\uff0c\u53ef\u80fd\u9996\u9009 AES-128\uff0c\u4ee5\u6700\u5927\u9650\u5ea6\u5730\u51cf\u5c11\u8ba1\u7b97\u5f00\u9500\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u6027\u80fd\u662f\u5173\u952e\u56e0\u7d20\uff0c\u5e76\u4e14\u6570\u636e\u4e0d\u9700\u8981\u6700\u9ad8\u7ea7\u522b\u7684\u5b89\u5168\u6027\uff0c\u5219 AES-128 \u53ef\u80fd\u662f\u5408\u9002\u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u786c\u4ef6\u548c\u8f6f\u4ef6\u9650\u5236<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u67d0\u4e9b\u786c\u4ef6\u6216\u8f6f\u4ef6\u5e73\u53f0\u53ef\u80fd\u5bf9 AES-256 \u7684\u652f\u6301\u6216\u4f18\u5316\u6709\u9650\uff0c\u4ece\u800c\u4f7f AES-128 \u6210\u4e3a\u66f4\u5177\u517c\u5bb9\u6027\u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u8f83\u65e7\u6216\u8d44\u6e90\u53d7\u9650\u7684\u8bbe\u5907\uff08\u4f8b\u5982\u5d4c\u5165\u5f0f\u7cfb\u7edf\u6216\u9057\u7559\u5e94\u7528\u7a0b\u5e8f\uff09\u53ef\u80fd\u65e0\u6cd5\u6709\u6548\u5b9e\u73b0 AES-256\uff0c\u4ece\u800c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<p><strong>\u7535\u6c60\u5bff\u547d\u6ce8\u610f\u4e8b\u9879\uff08\u9002\u7528\u4e8e\u79fb\u52a8\u8bbe\u5907\uff09<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5728\u7535\u6c60\u7535\u91cf\u6709\u9650\u7684\u79fb\u52a8\u8bbe\u5907\u6216\u7269\u8054\u7f51 (IoT) \u8bbe\u5907\u4e0a\uff0c\u4e0e AES-128 \u76f8\u6bd4\uff0cAES-256 \u589e\u52a0\u7684\u8ba1\u7b97\u5f00\u9500\u53ef\u80fd\u4f1a\u5bfc\u81f4\u7535\u6c60\u6d88\u8017\u66f4\u5feb\u3002<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u5982\u679c\u7535\u6c60\u5bff\u547d\u662f\u5173\u952e\u56e0\u7d20\uff0c\u5e76\u4e14\u5b89\u5168\u6027\u8981\u6c42\u4e0d\u662f\u6781\u9ad8\uff0cAES-128\u53ef\u80fd\u662f\u66f4\u5408\u9002\u7684\u9009\u62e9\u3002<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-wrapping-up\">\u5305\u8d77\u6765<\/h2>\n\n\n\n<p>\u5728\u6218\u6597\u4e2d<strong> AES 256 \u4e0e AE 128 <\/strong>\u6700\u7ec8\u7684\u9009\u62e9\u53d6\u51b3\u4e8e\u7528\u6237\u7684\u559c\u597d\u3002\u4e24\u8005\u90fd\u662f\u4fdd\u62a4\u73b0\u4ee3\u6280\u672f\u7684\u6700\u5148\u8fdb\u7684\u52a0\u5bc6\u6807\u51c6\u3002\u5e0c\u671b\u672c\u6587\u4e2d\u63d0\u4f9b\u7684\u4fe1\u606f\u80fd\u591f\u5e2e\u52a9\u60a8\u51b3\u5b9a\u54ea\u4e00\u4e2a\u9002\u5408\u60a8\u3002<\/p>\n\n\n\n<p>Symlex VPN uses cutting edge AES-256 bit encryption method for maximum security. Try Symlex VPN premium free backed by 7-days money back guarantee.<\/p>\n\n\n\n<p class=\"text-center\">\n  <a href=\"https:\/\/apps.apple.com\/ae\/app\/symlex-vpn-unlimited-fast-vpn\/id1476025535\" class=\"btn btn-md btn-green px-4 rounded-5 py-2 me-2\" target=\"_self\">\n     Download iPhone VPN App\n  <\/a>\n<br>\n<br>\n  <a href=\"https:\/\/play.google.com\/store\/apps\/details?id=app.kismyo.vpn&amp;hl=en&amp;gl=US\" class=\"btn btn-md btn-outline-success px-4 rounded-5 py-2\" target=\"_self\">\n     Download Android VPN App\n  <\/a>\n<\/p>","protected":false},"excerpt":{"rendered":"<p>\u6211\u4eec\u90fd\u81f3\u5c11\u542c\u8bf4\u8fc7\u4e00\u6b21 AES \u52a0\u5bc6\uff0c\u4f46\u60a8\u77e5\u9053\u8fd9\u9879\u51fa\u8272\u7684\u52a0\u5bc6\u6280\u672f\u80cc\u540e\u7684\u63a8\u624b\u662f\u8c01\u5417\uff1f\u5b83\u7684\u539f\u540d\u662f Rijndael \u52a0\u5bc6\uff0c\u7531\u4e24\u4f4d\u6bd4\u5229\u65f6\u5bc6\u7801\u5b66\u5bb6 Vincent Rijmen \u548c Joan Daemen \u5f00\u53d1\u3002\u73b0\u5728\uff0c\u5b83\u88ab\u7f8e\u56fd\u8054\u90a6\u653f\u5e9c\u3001\u519b\u961f\u3001\u653f\u5e9c\u90e8\u95e8\u7b49\u5e7f\u6cdb\u7528\u4f5c\u8bb8\u591a\u5e73\u53f0\u4e0a\u7684 AES \u52a0\u5bc6\u7b97\u6cd5\u3002[\u2026]<\/p>","protected":false},"author":2,"featured_media":11459,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-11456","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-security-privacy"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.4 (Yoast SEO v26.4) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Symlex VPN | 128 vs 256-bit encryption which one is better?<\/title>\n<meta name=\"description\" content=\"256 is a bigger number than 128, but does that mean AES-256 is the better option? 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