两个实用的方法从Base64字符串生成RSAPublicKey及RSAPrivatekey 

 1     public static RSAPublicKey getRSAPublidKeyBybase64(String base64s) {
 2         X509EncodedKeySpec keySpec = new X509EncodedKeySpec(CodeUtils.base64Decode(base64s));
 3         RSAPublicKey publicKey = null;
 4 　　　　　KeyFactory keyFactory = KeyFactory.getInstance("RSA");
 5         try {
 6             publicKey = (RSAPublicKey)keyFactory.generatePublic(keySpec);
 7         } catch (InvalidKeySpecException var4) {
 8             LOGGER.error("base64编码=" + base64s + "转RSA公钥失败", var4);
 9         }
10 
11         return publicKey;
12     }
13 
14     public static RSAPrivateKey getRSAPrivateKeyBybase64(String base64s) {
15         PKCS8EncodedKeySpec keySpec = new PKCS8EncodedKeySpec(CodeUtils.base64Decode(base64s));
16         RSAPrivateKey privateKey = null;
17         KeyFactory keyFactory = KeyFactory.getInstance("RSA");
18         try {
19             privateKey = (RSAPrivateKey)keyFactory.generatePrivate(keySpec);
20         } catch (InvalidKeySpecException var4) {
21             LOGGER.error("base64编码=" + base64s + "转RSA私钥失败", var4);
22         }
23 
24         return privateKey;
25     }

 

posted @ 2015-07-21 10:58  FrankYou  阅读(13532)  评论(0)  编辑  收藏  举报