{"id":165,"date":"2026-03-26T16:55:19","date_gmt":"2026-03-26T08:55:19","guid":{"rendered":"https:\/\/www.sherlock666.cn\/?p=165"},"modified":"2026-04-11T14:25:04","modified_gmt":"2026-04-11T06:25:04","slug":"sm4%e5%8a%a0%e5%af%86%e7%ae%97%e6%b3%95%e8%af%a6%e7%bb%86%e8%a7%a3%e8%af%bb","status":"publish","type":"post","link":"https:\/\/www.sherlock666.cn\/index.php\/2026\/03\/26\/sm4%e5%8a%a0%e5%af%86%e7%ae%97%e6%b3%95%e8%af%a6%e7%bb%86%e8%a7%a3%e8%af%bb\/","title":{"rendered":"SM4\u52a0\u5bc6\u7b97\u6cd5\u8be6\u7ec6\u89e3\u8bfb"},"content":{"rendered":"\n

SM4\u4ecb\u7ecd <\/h1>\n\n\n\n

SM4\u91c7\u7528\u5206\u7ec4\u52a0\u5bc6\u7684\u65b9\u5f0f\uff0c\u660e\u6587\u4e0e\u5bc6\u6587\u957f\u5ea6\u5747\u4e3a128bit(16\u5b57\u8282)\uff0c\u79d8\u94a5\u4e5f\u4e3a128bit(16\u5b57\u8282)\uff0c\u91c7\u752832\u8f6e\u8fed\u4ee3\uff0c\u6bcf\u4e00\u8f6e\u90fd\u9700\u8981\u7528\u5230\u65b0\u7684\u8f6e\u5bc6\u94a5\uff0c\u5373\u52a0\u5bc6\u7b97\u6cd5\u662f\u5bf9\u660e\u6587\u768432\u6b21\u52a0\u5bc6\u548c\u5bf9\u8f6e\u5bc6\u94a5\u7684\u751f\u6210\u3002<\/p>\n\n\n\n

\u52a0\u5bc6\u7b97\u6cd5\u4ecb\u7ecd<\/h1>\n\n\n\n

\u8f6e\u51fd\u6570\u52a0\u5bc6<\/h2>\n\n\n\n

SM4\u7684\u5206\u7ec4\u957f\u5ea6\u4e3a4\u5b57\uff0c\u56e0\u6b64\uff0c\u6bcf\u4e00\u6bb5\u957f\u5ea6\u90fd\u4e3a4\u5b57\u8282\uff0c\u6211\u4eec\u7528X0\u200b,X1\u200b,X2\u200b,X3\u200b\u8868\u793a\uff0c\u7ecf\u8fc7\u52a0\u5bc6\u540e\uff0c\u5f97\u5230\u7684\u8f93\u51fa\u662f4\u5b57\u7684\u5bc6\u6587\uff0c\u6211\u4eec\u7528Y0\u200b,Y1\u200b,Y2\u200b,Y3\u8868\u793a\uff0c\u8fd9\u4e2a\u52a0\u5bc6\u8fc7\u7a0b\u5206\u4e3a\u4e24\u6b65\uff0c\u753132\u6b21\u8f6e\u8fed\u4ee3<\/strong>\u548c1\u6b21\u53cd\u5e8f\u53d8\u6362<\/strong>\u7ec4\u6210\u3002\u5982\u56fe\u6240\u793a\u662f\u52a0\u5bc6\u6d41\u7a0b\u56fe\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

\u6211\u4eec\u5148\u5bf9\u52a0\u5bc6\u8fc7\u7a0b\u8fdb\u884c\u7cfb\u7edf\u5316\u4ecb\u7ecd\uff1a<\/p>\n\n\n\n

    \n
  • \u5c06\u8f93\u5165\u7684128bit\u62c6\u5206\u62104\u4e2a4\u5b57\u8282\u7684\u53d8\u91cfX0,X1,X2,X3<\/li>\n\n\n\n
  • \u8fdb\u884c32\u6b21\u5faa\u73af\uff0ci\u4ece0\u589e\u52a0\u523031<\/li>\n\n\n\n
  • \u5c06Xi\u5355\u72ec\u53d6\u51fa\u7528\u4e8e\u6700\u540e\u4e00\u6b65\uff0cXi+1 Xi+2 Xi+3 \u4e0e\u4f20\u5165\u7684\u7b2c\u4e00\u8f6e\u8f6e\u5bc6\u94a5rki\u8fdb\u884c\u5f02\u6216\u64cd\u4f5c\u4f5c\u4e3as\u76d2\u8f93\u5165\uff0c\u5373sbox-input= x i + 1 \u2295 x i + 2 \u2295 x i + 3 \u2295 r k i \uff0832bit\/4\u5b57\u8282\uff09<\/li>\n\n\n\n
  • \u5c06sbox-input\u8fdb\u884c\u62c6\u5206\uff0c\u5206\u4e3a4\u4e2a\u5355\u5b57\u8282\uff088bit\uff09\u7684\u53d8\u91cf\u4e0es\u76d2\u8fdb\u884c\u7f6e\u6362\uff0c\u7f6e\u6362\u540e\u518d\u5408\u5e76\u621032bit\u6570\u636e<\/li>\n\n\n\n
  • \u6211\u4eec\u5c06\u8f93\u51fa\u51fa\u6765\u7684\u6570\u636e\u5206\u522b\u8fdb\u884c\u5de6\u79fb\u4f4d\u6570\u4e3a\uff082\u300110\u30010\u300118\u300124\uff09<\/li>\n\n\n\n
  • \u6211\u4eec\u5c06\u5de6\u79fb\u540e\u7684\u6570\u636e\u5206\u522b\u8fdb\u884c\u6807\u6ce8\u4e3ay2,y10,y0,y18,y24\uff0c\u6b64\u65f6\u6211\u4eec\u5c06\u5de6\u79fb\u76845\u4e2a\u6570\u636e\u4e0eXi\u5f02\u6216\u5f97\u5230Xi+4<\/li>\n\n\n\n
  • \u8fd9\u91cc\u63d0\u5230\u7684\u5faa\u73af\u5de6\u79fb\u662f\u6307\u8fd9\u4e2a\u516c\u5f0f\uff0c\u5e76\u975e\u88650\u64cd\u4f5cROL(x, n) = ((x << n) | (x >> (32 - n))) & 0xffffffff<\/li>\n\n\n\n
  • L(B)=B\u2295(B<<2)\u2295(B<<10)\u2295(B<<18)\u2295(B<<24)\uff08\u5b98\u65b9\u516c\u5f0f\uff09<\/li>\n\n\n\n
  • xi+4=y0\u2295y2\u2295y10\u2295y18\u2295y24\u2295xi<\/li>\n\n\n\n
  • \u5faa\u73af\u4e00\u5171\u6267\u884c32\u6b21\uff0c\u6700\u7ec8\u5c06x35,x34,x33,x32 \u5408\u5e76\u6210\u4e00\u4e2a 128bit \u7684\u6570\u636e \uff0c\u4f5c\u4e3a\u6700\u540e\u7684\u8f93\u51fa\u7ed3\u679c<\/li>\n\n\n\n
  • \u6700\u540e\u5f97\u5230\u7684\u5bc6\u6587\u662f\u6309\u7167X35 || X34 || X33 || X32\u7684\u987a\u5e8f\u8f93\u51fa\uff0c\u5373X35\u5728\u9ad8\u4f4d\uff0cX32\u5728\u4f4e\u4f4d<\/li>\n<\/ul>\n\n\n\n

    \u603b\u7ed3\u5355\u6b21\u52a0\u5bc6\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n

    1\u3001\u540e3\u4f4d\u4e0e\u79d8\u94a5\u8fdb\u884c\u5f02\u6216<\/p>\n\n\n\n

    2\u3001\u5f02\u6216\u540e\u7ed3\u679c\u5355\u5b57\u8282\u8fdb\u884cs\u76d2\u7f6e\u6362<\/p>\n\n\n\n

    3\u3001\u7f6e\u6362\u540e\u7ed3\u679c\u5de6\u79fb\uff082\u300110\u30010\u300118\u300124\uff09\u540e\u4e0eXi\u5f02\u6216\u5f97\u5230Xi+4<\/p>\n\n\n\n

    \u8f6e\u5bc6\u94a5\u751f\u6210<\/h2>\n\n\n\n
    \"\"<\/figure>\n\n\n\n

    \u8f6e\u5bc6\u94a5\u751f\u6210\u4e0e\u51fd\u6570\u52a0\u5bc6\u8fc7\u7a0b\u5927\u540c\u5c0f\u5f02<\/p>\n\n\n\n

      \n
    • \u5148\u5bf9128\u4f4d\u7684key\u8fdb\u884c\u62c6\u5206\u62104\u4e2a4\u5b57\u8282\u5bc6\u94a5\u8bb0\u4e3aMK0\u3001MK1\u3001MK2\u3001MK3<\/li>\n\n\n\n
    • \u62c6\u5206\u91c7\u7528\u9ad8\u4f4d ---------------------------------> \u4f4e\u4f4d MK0\uff08\u9ad8\u4f4d\uff09 MK1 MK2 MK3\uff08\u4f4e\u4f4d\uff09\uff0c\u6784\u9020\u6570\u7ec4\u7684\u65f6\u5019\u662fMK0\u4e00\u822c\u653e\u57280-3\uff0c\u65b9\u4fbf\u5728\u540e\u7eed\u8fdb\u884c\u8fd0\u7b97<\/li>\n\n\n\n
    • \u5c06\u62c6\u5206\u51fa\u7684\u79d8\u94a5\u5206\u522b\u4e0e\u56fa\u5b9a\u53c2\u6570FK1234\u8fdb\u884c\u5f02\u6216\u5f97\u5230K1234\uff0c
      \u5373 k0=K0\u2295FK0,k1=K1\u2295FK1,k2=K2\u2295FK2,k3=K3\u2295FK3\uff0c\u540e\u7eed\u7edf\u4e00\u7528i\u8868\u793a<\/li>\n\n\n\n
    • \u5c06Ki\u53d6\u51fa\u7528\u4e8e\u6700\u540e\u4e00\u6b65\uff0c\u5176\u4ed6\u7684K\u4e0e\u56fa\u5b9a\u53c2\u6570CKi\u8fdb\u884c\u5f02\u6216\u5f97\u5230sbox-input
      sbox_input=ki+1\u2295ki+2\u2295ki+3\u2295cki<\/li>\n\n\n\n
    • \u4e4b\u540e\u5c064\u5b57\u8282\u8f93\u5165\u5206\u62104\u4e2a\u5355\u5b57\u8282\u8f93\u5165\u7136\u540e\u4e0eS\u76d2\u8fdb\u884c\u7f6e\u6362\uff0c\u7f6e\u6362\u540e\u8fdb\u884c\u62fc\u63a5\u5f97\u5230sbox-output<\/li>\n\n\n\n
    • \u5c06sbox-output\u5206\u522b\u5de6\u79fb\uff0813\u30010\u300123\uff09\u540e\u5f97\u5230y0\u3001y13\u3001y23\uff0c\u4e0eKi\u8fdb\u884c\u5f02\u6216\u5f97\u5230Ki+4\uff08\u7b2ci\u4f4d\u8f6e\u5bc6\u94a5\uff09<\/li>\n\n\n\n
    • rki=ki+4=sbox_output\u2295y13\u2295y23\u2295ki<\/li>\n\n\n\n
    • \u6267\u884c\u5b8c 32 \u8f6e\u540e\uff0c\u4fbf\u53ef\u83b7\u5f97 32 \u4e2a\u7528\u4e8e\u52a0\u89e3\u5bc6\u7684 rki<\/li>\n<\/ul>\n\n\n\n

      \u603b\u7ed3\u8f6e\u5bc6\u94a5\u751f\u6210\u8fc7\u7a0b\uff1a<\/p>\n\n\n\n

      1\u3001\u5148\u5c06MK\u4e0eFK\u5206\u522b\u5f02\u6216\u5f97\u5230Ki<\/p>\n\n\n\n

      2\u3001\u5c06Ki+123\u4e0e\u56fa\u5b9a\u53c2\u6570CKi\u5f02\u6216\u5f97\u5230s\u76d2\u8f93\u5165\uff0c\u5e76\u8fdb\u884c\u8fdb\u884cs\u76d2\u7f6e\u6362<\/p>\n\n\n\n

      3\u3001\u5c06\u8f93\u51fa\u7ed3\u679c\u5de6\u79fb\uff0813\u30010\u300123\uff09\u540e\u4e0eKi\u8fdb\u884c\u5f02\u6216\u5f97\u5230rki\u8f6e\u5bc6\u94a5<\/p>\n\n\n\n

      \u89e3\u5bc6<\/h2>\n\n\n\n

      \u89e3\u5bc6\u8fc7\u7a0b\u548c\u52a0\u5bc6\u8fc7\u7a0b\u91c7\u7528\u76f8\u540c\u7684\u65b9\u5f0f\uff0c\u552f\u4e00\u4e0d\u540c\u7684\u662f\uff0c\u89e3\u5bc6\u65f6\u4f7f\u7528\u7684\u8f6e\u5bc6\u94a5\u662f\u5148\u7528rk31\uff0c\u6700\u540e\u518d\u7528rk0<\/p>\n\n\n\n

      \u6ce8\u610f\u70b9\uff1a<\/h2>\n\n\n\n

      \u5728\u6700\u8fd1\u505aSM4\u7684\u9898\u76ee\u65f6\u53d1\u73b0SM4\u7684\u8bfb\u53d6\u65b9\u5f0f\u662f\u4e00\u4e2a\u9700\u8981\u5341\u5206\u6ce8\u610f\u7684\u70b9\uff0c\u6b63\u5e38\u7684X86\u67b6\u6784\u4e0b\uff0c\u6570\u636e\u8bfb\u53d6\u90fd\u662f\u5c0f\u7aef\u8bfb\u53d6\uff0c\u800cSM4\u5728\u52a0\u5bc6\u8fc7\u7a0b\u4e2d\u6570\u636e\u8bfb\u53d6\u662f\u6309\u7167\u5927\u7aef\u8bfb\u53d6\u7684\uff0c\u6700\u7ec8\u7684\u7ed3\u679c\u4e5f\u662f\u5927\u7aef\u62fc\u63a5\uff0c\u8fd9\u4e48\u8bf4\u53ef\u80fd\u6709\u4e9b\u751f\u786c\uff0c\u6211\u4eec\u76f4\u63a5\u770b\u4f8b\u5b50\uff1a<\/p>\n\n\n\n

      \u5047\u8bbe\u6761\u4ef6\uff1a\u660e\u6587 = 1234567890ABCDEF
      \u5bc6\u94a5 = AABBCCDDEEFFGGHH<\/p>\n\n\n\n

      \u6309 SM4 \u7684\u5927\u7aef\u5206\u7ec4\uff0c\u53d8\u6210\uff1a<\/p>\n\n\n\n

      X0 = 0x31323334
      X1 = 0x35363738
      X2 = 0x39304142
      X3 = 0x43444546
      \u4f46\u662f\u6211\u4eecX86\u8bfb\u53d6\u7684\u65b9\u5f0f\u662fX0 = 0x34333231\u521a\u597d\u76f8\u53cd\uff0c\u6240\u4ee5\u52a0\u5165\u4e00\u7aef\u4fee\u6b63\u8fdb\u884c\u5927\u7aef\u6539\u5199<\/pre>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      \u79d8\u94a5\u8ddf\u5bc6\u6587\u540c\u7406<\/p>\n\n\n\n
      \u6700\u7ec8\u6211\u4eec\u5f97\u5230\u5bc6\u6587\u4e3a\uff1a<\/p>\n\n\n\n
      Y0 = 0xCA752DEB
      Y1 = 0xCFEB00CA
      Y2 = 0xB4437301
      Y3 = 0x0AAE0D1D<\/p>\n\n\n\n
      \u8f93\u51fa\u7684\u65f6\u5019\u5bc6\u6587\u7528CA 75 2D EB CF EB 00 CA B4 43 73 01 0A AE 0D 1D\u62fc\u63a5\u51fa\u53bb<\/p>\n\n\n\n
      \u6240\u4ee5\u8fd8\u4f1a\u6709\u4e00\u6bb5\u5bf9\u4e8e\u5bc6\u6587\u8f93\u51fa\u7684\u4fee\u6b63\u6bb5\uff0c\u6b64\u65f6\u6211\u4eec\u5bf9\u4e8eSM4\u5927\u5c0f\u7aef\u7684\u7406\u89e3\u5c31\u5f7b\u5e95\u641e\u61c2\u4e86<\/p>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      \u5982\u679c\u8981\u89e3\u5bc6\uff0c\u6211\u4eec\u62ff\u5230\u7684\u5bc6\u6587\uff0c\u4f9d\u65e7\u4e3e\u4f8b\u770b\u600e\u4e48\u53bb\u8f93\u5165\u79d8\u94a5\u5bc6\u6587\uff0c\u53ef\u4ee5\u770b\u5230\u79d8\u94a5\u662f\u6309\u5c0f\u7aef\u5b58\u50a8\u7684\uff0c\u6b64\u65f6\u5982\u679c\u6ca1\u6709\u5bf9\u79d8\u94a5\u8fdb\u884c\u7684\u64cd\u4f5c\u5219\u6211\u4eec\u7684\u79d8\u94a5\u76f4\u63a5\u6284\u8fdb\u53bb\u5373\u53ef\uff0c\u6700\u597d\u6309\u7167\u6c47\u7f16\u5c42\u53bb\u6284\u5199\uff0c\u6bcf\u7ec44\u5b57\u8282\uff0c\u4f46\u5982\u679c\u79d8\u94a5\u4e5f\u8fdb\u884c\u4e86\u524d\u9762\u660e\u6587\u6240\u505a\u7684\u4ea4\u6362\u64cd\u4f5c\uff0c\u5219\u4e5f\u9700\u8981\u8fdb\u884c\u5012\u5e8f\u8f93\u5165<\/p>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      \u5bc6\u6587\u5c42\u9762\u6211\u4eec\u524d\u9762\u77e5\u9053\u5bc6\u6587\u505a\u4e86\u5927\u5c0f\u7aef\u4e92\u6362\uff0c\u90a3\u4e48\u8fd9\u91cc\u6211\u4eec\u6bcf\u56db\u5b57\u8282\u4e5f\u8981\u8fdb\u884c\u5927\u5c0f\u7aef\u4ea4\u6362\uff0c\u6240\u4ee5\u8f93\u5165\u5bc6\u6587\u5e94\u4e3ab5 c8 ac cf ea 52 4d e3 70 2b 1f 08 3d 47 61 6b<\/p>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
      \"\"<\/figure>\n\n\n\n
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