Get the SH1 security code for Android

Source: Internet
Author: User
Tags sha1

Used to get phone contact information
 Public StaticString sHA1 (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=NewStringBuffer ();  for(inti = 0; i < publickey.length; i++) {String appendString= Integer.tohexstring (0xFF &Publickey[i]). toUpperCase (; if(appendstring.length () = = 1) Hexstring.append ("0");        Hexstring.append (appendString); }        returnhexstring.tostring (); } Catch(packagemanager.namenotfoundexception e) {e.printstacktrace (); } Catch(nosuchalgorithmexception e) {e.printstacktrace (); }    return NULL;}

Get the SH1 security code for Android

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