{"id":1850,"date":"2023-03-29T22:00:56","date_gmt":"2023-03-29T14:00:56","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1850"},"modified":"2023-04-22T09:09:53","modified_gmt":"2023-04-22T01:09:53","slug":"how-to-obtain-application-signatures-and-sha1-values-in-android-code","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/29\/how-to-obtain-application-signatures-and-sha1-values-in-android-code\/","title":{"rendered":"Android\u5728\u4ee3\u7801\u4e2d\u5982\u4f55\u83b7\u53d6\u5e94\u7528\u7b7e\u540d\u53casha1\u503c"},"content":{"rendered":"<h3>\u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684sha1\u503c<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684sha1\u503c\n *\n * @param context\n * @return\n *\/\npublic static String getAppSignSha1(Context context) {\n    try {\n        PackageManager packageManager = context.getPackageManager();\n        PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(),\n                PackageManager.GET_SIGNATURES);\n        \/\/ X509\u8bc1\u4e66\uff0cX.509\u662f\u4e00\u79cd\u975e\u5e38\u901a\u7528\u7684\u8bc1\u4e66\u683c\u5f0f\n        Signature[] signs = packageInfo.signatures;\n        Signature sign = signs[0];\n        CertificateFactory certFactory = CertificateFactory.getInstance(&quot;X.509&quot;);\n        X509Certificate cert = (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream(sign.toByteArray()));\n        \/\/ sha1\n        MessageDigest md = MessageDigest.getInstance(&quot;SHA1&quot;);\n        \/\/ \u83b7\u5f97\u516c\u94a5\n        byte[] b = md.digest(cert.getEncoded());\n        return bytes2HexFormatted(b);\n    } catch (Exception e) {\n        NLog.e(TAG, Log.getStackTraceString(e));\n    }\n    return &quot;&quot;;\n}<\/code><\/pre>\n<p><!-- more --><\/p>\n<h3>\u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684sha256\u503c<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684sha256\u503c\n *\n * @param context\n * @return\n *\/\npublic static String getAppSignSha256(Context context) {\n    try {\n        PackageManager packageManager = context.getPackageManager();\n        PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(),\n                PackageManager.GET_SIGNATURES);\n        \/\/ X509\u8bc1\u4e66\uff0cX.509\u662f\u4e00\u79cd\u975e\u5e38\u901a\u7528\u7684\u8bc1\u4e66\u683c\u5f0f\n        Signature[] signs = packageInfo.signatures;\n        Signature sign = signs[0];\n        CertificateFactory certFactory = CertificateFactory.getInstance(&quot;X.509&quot;);\n        X509Certificate cert = (X509Certificate) certFactory.generateCertificate(new ByteArrayInputStream(sign.toByteArray()));\n        \/\/ sha1\n        MessageDigest md = MessageDigest.getInstance(&quot;SHA256&quot;);\n        \/\/ \u83b7\u5f97\u516c\u94a5\n        byte[] b = md.digest(cert.getEncoded());\n        return bytes2HexFormatted(b);\n    } catch (Exception e) {\n        NLog.e(TAG, Log.getStackTraceString(e));\n    }\n    return &quot;&quot;;\n}<\/code><\/pre>\n<h3>\u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684md5\u503c<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684md5\u503c\n *\n * @param context\n * @return\n *\/\npublic static String getAppSignMd5(Context context) {\n    try {\n        PackageManager packageManager = context.getPackageManager();\n        \/\/\u8bf7\u6ce8\u610f\u9700\u8981PackageManager.GET_SIGNATURES \u8fd9\u4e2aflag\n        PackageInfo packageInfo = packageManager.getPackageInfo(context.getPackageName(),\n                PackageManager.GET_SIGNATURES);\n        Signature[] signs = packageInfo.signatures;\n        Signature sign = signs[0];\n        \/\/ X509\u8bc1\u4e66\uff0cX.509\u662f\u4e00\u79cd\u975e\u5e38\u901a\u7528\u7684\u8bc1\u4e66\u683c\u5f0f\n        CertificateFactory certFactory = CertificateFactory.getInstance(&quot;X.509&quot;);\n        X509Certificate cert = (X509Certificate) certFactory\n                .generateCertificate(new ByteArrayInputStream(sign.toByteArray()));\n        \/\/ md5\n        MessageDigest md = MessageDigest.getInstance(&quot;MD5&quot;);\n        \/\/ \u83b7\u5f97\u516c\u94a5\n        byte[] b = md.digest(cert.getEncoded());\n        \/\/key\u5373\u4e3a\u5e94\u7528\u7b7e\u540d\n        return bytes2HexFormatted(b);\n    } catch (PackageManager.NameNotFoundException e) {\n        NLog.e(TAG, Log.getStackTraceString(e));\n    } catch (CertificateException e) {\n        NLog.e(TAG, Log.getStackTraceString(e));\n    } catch (NoSuchAlgorithmException e) {\n        NLog.e(TAG, Log.getStackTraceString(e));\n    }\n    return &quot;&quot;;\n}<\/code><\/pre>\n<h3>\u5b57\u8282\u6570\u7ec416\u8fdb\u5236\u8f6c\u6362<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u5c06\u83b7\u53d6\u5230\u5f97\u7f16\u7801\u8fdb\u884c16\u8fdb\u5236\u8f6c\u6362\n *\n * @param arr\n * @return\n *\/\nprivate static String bytes2HexFormatted(byte[] arr) {\n    StringBuilder str = new StringBuilder(arr.length * 2);\n    for (int i = 0; i &lt; arr.length; i++) {\n        String h = Integer.toHexString(arr[i]);\n        int l = h.length();\n        if (l == 1)\n            h = &quot;0&quot; + h;\n        if (l &gt; 2)\n            h = h.substring(l - 2, l);\n        str.append(h.toUpperCase());\n        if (i &lt; (arr.length - 1))\n            str.append(&#039;:&#039;);\n    }\n    return str.toString();\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684sha1\u503c \/** * \u83b7\u5f97App\u7b7e\u540d\u6587\u4ef6\u7684sha1\u503c * * @param contex [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[61],"tags":[211],"class_list":["post-1850","post","type-post","status-publish","format-standard","hentry","category-android-basic","tag-211"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1850","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1850"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1850\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1850"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1850"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1850"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}