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View Code? Open in Web Editor NEWAES+RSA结合应用java示例
License: Apache License 2.0
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几个问题
看了下这个方案的 Java 代码，有几个问题：
1.
https://github.com/wustrive2008/aes-rsa-java/blob/master/src/main/java/com/wustrive/aesrsa/util/RandomUtil.java
这个竟然用的是java.util.Random。
java.util.Random 不是密码学安全的！
"AES/ECB/PKCS5Padding";
AES绝对不要使用 ECB 模式！
HMAC 用 javax.crypto.Mac 就行了
不需要自己实现。
楼主的实现冗余代码太多。
建议废掉 HMAC-MD5 和 HMAC-SHA1,这俩已经不安全了。
1.
https://github.com/wustrive2008/aes-rsa-java/blob/master/src/main/java/com/wustrive/aesrsa/util/EncryptionUtil.java
这个提取一个 byte to hex 的公共函数出来就行了。
可以省掉复制粘贴。
byte to hex 也不需要写这么长。几行搞定：
http://stackoverflow.com/questions/15429257/how-to-convert-byte-array-to-hexstring-in-java
RSA 1024已经不安全了，起码要2048！
"SHA1WithRSA" 已经被废弃，建议更新成 SHA256WithRSA
建议楼主好好看看Facebook的这个项目：
客户端解密过程的疑问
String aeskey = RSA.decrypt(Req.encryptkey, serverPrivateKey);
解密服务器的响应时为什么不用客户端的私钥clientPrivateKey，这时客户端相对服务器端是接收方，不是应该用接收方的私钥解密吗？
Insecure Hash Functions
Hi there, we found that the following places using insecure hash functions:
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/Digest.java:19: error: [algorithm.not.allowed] Algorithm: MD5 is not allowed by the current rules
MessageDigest md = MessageDigest.getInstance("MD5");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/Digest.java:33: error: [algorithm.not.allowed] Algorithm: MD5 is not allowed by the current rules
MessageDigest md = MessageDigest.getInstance("MD5");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/Digest.java:66: error: [algorithm.not.allowed] Algorithm: MD5 is not allowed by the current rules
md = MessageDigest.getInstance("MD5");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/Digest.java:102: error: [algorithm.not.allowed] Algorithm: SHA is not allowed by the current rules
md = MessageDigest.getInstance("SHA");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/Digest.java:132: error: [algorithm.not.allowed] Algorithm: SHA is not allowed by the current rules
md = MessageDigest.getInstance("SHA");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/Digest.java:162: error: [algorithm.not.allowed] Algorithm: SHA1 is not allowed by the current rules
MessageDigest md = MessageDigest.getInstance("SHA1");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/EncryptionUtil.java:23: error: [algorithm.not.allowed] Algorithm: MD5 is not allowed by the current rules
MessageDigest md = MessageDigest.getInstance("MD5");
^
/home/xwt/IdeaProjects/aes-rsa-java/src/main/java/com/wustrive/aesrsa/util/EncryptionUtil.java:57: error: [algorithm.not.allowed] Algorithm: SHA-1 is not allowed by the current rules
MessageDigest md = MessageDigest.getInstance("SHA-1");
^
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