Java对PHP服务器hmac_sha1签名认证方法的匹配实现
如果你的API服務安全認證協議中要求使用hmac_sha1方法對信息進行編碼,?
而你的服務是由PHP實現的,客戶端是由JAVA實現的,那么為了對簽名正確比對,就需要在兩者之間建立能匹配的編碼方式.
PHP側如下:
[php]?view plaincopy
define('ID','123456');??
define('KEY','k123456');??
??
$strToSign?=?"test_string";??
??
$utf8Str?=?mb_convert_encoding($strToSign,?"UTF-8");??
$hmac_sha1_str?=?base64_encode(hash_hmac("sha1",?$utf8Str,?KEY));??
$signature?=?urlencode($hmac_sha1_str);??
print_r($signature);??
JAVA側需要注意如下幾點:
1. hmac_sha1編碼結果需要轉換成hex格式
2. java中base64的實現和php不一致,其中java并不會在字符串末尾填補=號以把字節數補充為8的整數
3. hmac_sha1并非sha1, hmac_sha1是需要共享密鑰的
參考實現如下:
[java]?view plaincopy
import?java.io.UnsupportedEncodingException;??
import?javax.crypto.Mac;??
import?javax.crypto.spec.SecretKeySpec;??
import?org.apache.wicket.util.crypt.Base64UrlSafe;??
??
public?class?test?{??
?????public?static?void?main(String[]?args)?{??
????????String?key?=?"f85b8b30f73eb2bf5d8063a9224b5e90";??
??????String?toHash?=??"GET"+"\n"+"Thu,?09?Aug?2012?13:33:46?+0000"+"\n"+"/ApiChannel/Report.m";??
??????//String?toHashUtf8?=?URLEncoder.encode(toHash,?"UTF-8");??
????????String?res?=?hmac_sha1(toHash,?key);??
????????//System.out.print(res+"\n");??
??????????
????????String?signature;??
????????try?{??
????????????signature?=?new?String(Base64UrlSafe.encodeBase64(res.getBytes()),"UTF-8");??
????????????signature?=?appendEqualSign(signature);??
????????????System.out.print(signature);??
????????}?catch?(UnsupportedEncodingException?e)?{??
????????????e.printStackTrace();??
????????}??
????}??
??????
????public?static?String?hmac_sha1(String?value,?String?key)?{??
????????try?{??
????????????//?Get?an?hmac_sha1?key?from?the?raw?key?bytes??
????????????byte[]?keyBytes?=?key.getBytes();?????????????
????????????SecretKeySpec?signingKey?=?new?SecretKeySpec(keyBytes,?"HmacSHA1");??
??
????????????//?Get?an?hmac_sha1?Mac?instance?and?initialize?with?the?signing?key??
????????????Mac?mac?=?Mac.getInstance("HmacSHA1");??
????????????mac.init(signingKey);??
??
????????????//?Compute?the?hmac?on?input?data?bytes??
????????????byte[]?rawHmac?=?mac.doFinal(value.getBytes());??
??
????????????//?Convert?raw?bytes?to?Hex??
????????????String?hexBytes?=?byte2hex(rawHmac);??
????????????return?hexBytes;??
????????}?catch?(Exception?e)?{??
????????????throw?new?RuntimeException(e);??
????????}??
????}??
??
????private?static?String?byte2hex(final?byte[]?b){??
????????String?hs="";??
????????String?stmp="";??
????????for?(int?n=0;?n<b.length;?n++){??
????????????stmp=(java.lang.Integer.toHexString(b[n]?&?0xFF));??
????????????if?(stmp.length()==1)?hs=hs+"0"+stmp;??
????????????????else?hs=hs+stmp;??
????????}??
????????return?hs;??
????}?????
??????
????private?static?String?appendEqualSign(String?s){??
????????int?len?=?s.length();??
????????int?appendNum?=?8?-?(int)(len/8);??
????????for?(int?n=0;?n<appendNum;?n++){??
????????????s?+=?"%3D";??
????????}??
????????return?s;??
????}??
} ?
參考地址：http://blog.csdn.net/iefreer/article/details/7864190
ios開發參考地址：http://blog.woodbunny.com/post-86.html
http://www.lidaren.com/archives/724
轉載于:https://blog.51cto.com/4789781/1436699
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