{"id":207468,"date":"2025-07-08T11:49:47","date_gmt":"2025-07-08T03:49:47","guid":{"rendered":"https:\/\/server.hk\/cnblog\/207468\/"},"modified":"2025-07-08T11:49:47","modified_gmt":"2025-07-08T03:49:47","slug":"%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-nacl-%e5%af%b9%e5%a4%a7%e6%96%87%e4%bb%b6%e8%bf%9b%e8%a1%8c%e7%ad%be%e5%90%8d%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/207468\/","title":{"rendered":"\u5982\u4f55\u4f7f\u7528 NaCl \u5bf9\u5927\u6587\u4ef6\u8fdb\u884c\u7b7e\u540d\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

\u5f53\u524d\u4f4d\u7f6e\uff1a ><\/span> ><\/span> ><\/span> ><\/span> \u5982\u4f55\u4f7f\u7528 NaCl \u5bf9\u5927\u6587\u4ef6\u8fdb\u884c\u7b7e\u540d\uff1f<\/span><\/p>\n

\u6765\u6e90\uff1astackoverflow<\/span>
\n2024-04-22 20:33:34<\/span>
\n<\/i>0\u6d4f\u89c8<\/span>
\n<\/i>\u6536\u85cf<\/span> <\/p>\n

\u6709\u5fd7\u8005\uff0c\u4e8b\u7adf\u6210\uff01\u5982\u679c\u4f60\u5728\u5b66\u4e60Golang<\/span>\uff0c\u90a3\u4e48\u672c\u6587\u300a\u5982\u4f55\u4f7f\u7528 NaCl \u5bf9\u5927\u6587\u4ef6\u8fdb\u884c\u7b7e\u540d\uff1f\u300b<\/span>\uff0c\u5c31\u5f88\u9002\u5408\u4f60\uff01\u6587\u7ae0\u8bb2\u89e3\u7684\u77e5\u8bc6\u70b9\u4e3b\u8981\u5305\u62ec<\/span>\uff0c\u82e5\u662f\u4f60\u5bf9\u672c\u6587\u611f\u5174\u8da3\uff0c\u6216\u8005\u662f\u60f3\u641e\u61c2\u5176\u4e2d\u67d0\u4e2a\u77e5\u8bc6\u70b9\uff0c\u5c31\u8bf7\u4f60\u7ee7\u7eed\u5f80\u4e0b\u770b\u5427~<\/span><\/p>\n

\u95ee\u9898\u5185\u5bb9
\n <\/p>\n

\u8003\u8651\u5230 Go NaCl \u5e93 (https:\/\/github.com\/golang\/crypto\/tree\/master\/nacl\/sign) \u7684\u7b7e\u540d\u529f\u80fd\uff0c\u5982\u4f55\u5bf9\u6587\u4ef6\u8fdb\u884c\u7b7e\u540d\uff0c\u7279\u522b\u662f\u5927\u4e8e1GB\uff1f\u5927\u591a\u6570\u4e92\u8054\u7f51\u641c\u7d22\u7ed3\u679c\u90fd\u662f\u5173\u4e8e\u5bf9\u5207\u7247\u6216\u5c0f\u5b57\u8282\u6570\u7ec4\u8fdb\u884c\u7b7e\u540d\u7684\u3002<\/p>\n

\u6211\u53ef\u4ee5\u60f3\u5230\u4e24\u79cd\u65b9\u6cd5\uff1a<\/p>\n

    \n
  1. \u4ee5\u5757\u65b9\u5f0f\u5faa\u73af\u904d\u5386\u6587\u4ef6\u548c\u6d41\uff08\u4f8b\u5982\u6bcf\u6b21 16k\uff09\uff0c\u7136\u540e\u5c06\u5176\u8f93\u5165\u5230sign\u51fd\u6570\u4e2d\u3002\u6d41\u5f0f\u8f93\u51fa\u88ab\u8fde\u63a5\u6210\u7b7e\u540d\u8bc1\u4e66\u3002\u4e3a\u4e86\u9a8c\u8bc1\uff0c\u53cd\u4e4b\u4ea6\u7136\u3002<\/li>\n
  2. \u4f7f\u7528 SHA(X) \u751f\u6210\u6587\u4ef6\u7684 shasum\uff0c\u7136\u540e\u5bf9 shasum \u8f93\u51fa\u8fdb\u884c\u7b7e\u540d\u3002<\/li>\n<\/ol>\n

    <\/p>\n

    \u89e3\u51b3\u65b9\u6848<\/h2>\n

    <\/p>\n

    \u5bf9\u4e8e\u7b7e\u7f72\u975e\u5e38\u5927\u7684\u6587\u4ef6\uff08\u6570\u5343\u5146\u5b57\u8282\u53ca\u4ee5\u4e0a\uff09\uff0c\u4f7f\u7528\u6807\u51c6\u7b7e\u540d\u51fd\u6570\u7684\u95ee\u9898\u901a\u5e38\u662f\u8fd0\u884c\u65f6\u548c\u8106\u5f31\u6027\u3002\u5bf9\u4e8e\u975e\u5e38\u5927\u7684\u6587\u4ef6\uff08\u6216\u8005\u53ea\u662f\u6162\u901f\u78c1\u76d8\uff09\uff0c\u4ece\u5934\u5230\u5c3e\u8fde\u7eed\u8bfb\u53d6\u5b8c\u6574\u6587\u4ef6\u53ef\u80fd\u9700\u8981\u51e0\u4e2a\u5c0f\u65f6\u6216\u66f4\u957f\u65f6\u95f4\u3002 <\/p>\n

    \u5728\u8fd9\u79cd\u60c5\u51b5\u4e0b\uff0c\u60a8\u9700\u8981\u4e00\u79cd\u5e76\u884c\u5904\u7406\u6587\u4ef6\u7684\u65b9\u6cd5\u3002\u9002\u5408\u52a0\u5bc6\u7b7e\u540d\u7684\u5e38\u89c1\u65b9\u6cd5\u4e4b\u4e00\u662f merkle \u6811\u54c8\u5e0c\u3002\u5b83\u4eec\u5141\u8bb8\u60a8\u5c06\u5927\u6587\u4ef6\u5206\u5272\u6210\u66f4\u5c0f\u7684\u5757\uff0c\u5e76\u884c\u6563\u5217\u5b83\u4eec\uff08\u751f\u6210\u201c\u53f6\u6563\u5217\u201d\uff09\uff0c\u7136\u540e\u8fdb\u4e00\u6b65\u6563\u5217\u6811\u7ed3\u6784\u4e2d\u7684\u8fd9\u4e9b\u6563\u5217\u4ee5\u751f\u6210\u4ee3\u8868\u5b8c\u6574\u6587\u4ef6\u7684\u6839\u6563\u5217\u3002<\/p>\n

    \u8ba1\u7b97\u51fa\u6b64 merkle \u6811\u6839\u54c8\u5e0c\u540e\uff0c\u60a8\u53ef\u4ee5\u5bf9\u8be5\u6839\u54c8\u5e0c\u8fdb\u884c\u7b7e\u540d\u3002\u7136\u540e\u5c31\u53ef\u4ee5\u4f7f\u7528\u7b7e\u540d\u7684 merkle \u6811\u6839\u54c8\u5e0c\u6765\u5e76\u884c\u9a8c\u8bc1\u6240\u6709\u6587\u4ef6\u5757\uff0c\u5e76\u9a8c\u8bc1\u5b83\u4eec\u7684\u987a\u5e8f\uff08\u57fa\u4e8e\u6811\u7ed3\u6784\u4e2d\u53f6\u54c8\u5e0c\u7684\u4f4d\u7f6e\uff09\u3002 <\/p>\n

    nacl \u7684\u95ee\u9898\u662f\u4f60\u9700\u8981\u5c06\u6574\u4e2a\u6d88\u606f\u653e\u5165 ram\uff0c\uff1a<\/p>\n

    \u4f46\u662f\uff0c\u8fd8\u6709\u5404\u79cd\u5176\u4ed6\u65b9\u6cd5\u3002\u4ed6\u4eec\u4e2d\u7684\u5927\u591a\u6570\u57fa\u672c\u4e0a\u90fd\u662f\u6309\u7167\u60a8\u5728\u7b2c\u4e00\u79cd\u65b9\u5f0f\u4e2d\u63cf\u8ff0\u7684\u65b9\u5f0f\u8fdb\u884c\u7684\u3002\u60a8\u57fa\u672c\u4e0a\u5c06\u6587\u4ef6\u5185\u5bb9\u590d\u5236\u5230 io.writer<\/code> \u4e2d\uff0c\u5b83\u83b7\u53d6\u5185\u5bb9\u5e76\u8ba1\u7b97\u54c8\u5e0c\u548c – \u8fd9\u662f\u6700\u6709\u6548\u7684\u3002<\/p>\n

    \u4e0b\u9762\u7684\u4ee3\u7801\u76f8\u5f53\u7cdf\u7cd5\uff0c\u4f46\u4f60\u5e94\u8be5\u660e\u767d\u4e86\u3002 \u6211\u7528\u5b83\u5b9e\u73b0\u4e86 315mb\/s \u7684\u5e73\u5747\u541e\u5410\u91cf\u3002<\/p>\n

    package main\n\nimport (\n    \"crypto\/ecdsa\"\n    \"crypto\/elliptic\"\n    \"crypto\/rand\"\n    \"crypto\/sha256\"\n    \"flag\"\n    \"fmt\"\n    \"io\"\n    \"log\"\n    \"math\/big\"\n    \"os\"\n    \"time\"\n)\n\nvar filename = flag.String(\"file\", \"\", \"file to sign\")\n\nfunc main() {\n    flag.Parse()\n\n    if *filename == \"\" {\n        log.Fatal(\"file can not be empty\")\n    }\n\n    f, err := os.Open(*filename)\n    if err != nil {\n        log.Fatalf(\"Error opening '%s': %s\", *filename, err)\n    }\n    defer f.Close()\n\n    start := time.Now()\n    sum, n, err := hash(f)\n    duration := time.Now().Sub(start)\n    log.Printf(\"Hashed %s (%d bytes)in %s to %x\", *filename, n, duration, sum)\n\n    log.Printf(\"Average: %.2f MB\/s\", (float64(n)\/1000000)\/duration.Seconds())\n\n    r, s, err := sign(sum)\n    if err != nil {\n        log.Fatalf(\"Error creatig signature: %s\", err)\n    }\n\n    log.Printf(\"Signature: (0x%x,0x%x)\\n\", r, s)\n\n}\n\nfunc sign(sum []byte) (*big.Int, *big.Int, error) {\n    priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)\n    if err != nil {\n        log.Printf(\"Error creating private key: %s\", err)\n    }\n\n    return ecdsa.Sign(rand.Reader, priv, sum[:])\n\n}\n\nfunc hash(f *os.File) ([]byte, int64, error) {\n    var (\n        hash []byte\n        n    int64\n        err  error\n    )\n\n    h := sha256.New()\n\n    \/\/ This is where the magic happens.\n    \/\/ We use the efficient io.Copy to feed the contents\n    \/\/ of the file into the hash function.\n    if n, err = io.Copy(h, f); err != nil {\n        return nil, n, fmt.Errorf(\"Error creating hash: %s\", err)\n    }\n    hash = h.Sum(nil)\n    return hash, n, nil\n}<\/pre>\n
    \u672c\u7bc7\u5173\u4e8e\u300a\u5982\u4f55\u4f7f\u7528 NaCl \u5bf9\u5927\u6587\u4ef6\u8fdb\u884c\u7b7e\u540d\uff1f\u300b\u7684\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\u5566\uff0c\u4f46\u662f\u5b66\u65e0\u6b62\u5883\uff0c\u60f3\u8981\u4e86\u89e3\u5b66\u4e60\u66f4\u591a\u5173\u4e8eGolang\u7684\u76f8\u5173\u77e5\u8bc6\uff0c\u8bf7\u5173\u6ce8\u516c\u4f17\u53f7\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
    \u5f53\u524d\u4f4d\u7f6e\uff1a > > ...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-207468","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207468","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=207468"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/207468\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=207468"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=207468"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=207468"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}