android中获取SHA1的代码
16lz
2021-01-23
public static String getSHA1(Context context) { try { PackageInfo info = context.getPackageManager().getPackageInfo( context.getPackageName(), PackageManager.GET_SIGNATURES); byte[] cert = info.signatures[0].toByteArray(); MessageDigest md = MessageDigest.getInstance("SHA1"); byte[] publicKey = md.digest(cert); StringBuffer hexString = new StringBuffer(); for (int i = 0; i < publicKey.length; i++) { String appendString = Integer.toHexString(0xFF & publicKey[i]) .toUpperCase(Locale.US); if (appendString.length() == 1) hexString.append("0"); hexString.append(appendString); hexString.append(":"); } String result = hexString.toString(); return result.substring(0, result.length()-1); } catch (PackageManager.NameNotFoundException e) { e.printStackTrace(); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } return null;}
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