javax.crypto.BadPaddingException: Given final block not properly padded at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:975) at com.sun.crypto.provider.CipherCore.doFinal(CipherCore.java:833) at com.sun.crypto.provider.AESCipher.engineDoFinal(AESCipher.java:446) at javax.crypto.Cipher.doFinal(Cipher.java:2165) at com.yiwugou.reb.api.utils.AESUtils.decrypt(AESUtils.java:80) at com.yiwugou.reb.api.utils.AESUtils.decrypt(AESUtils.java:98) at com.yiwugou.reb.api.utils.CookieUtils.getUserCookie(CookieUtils.java:94) at com.yiwugou.reb.web.filter.SessionFilter.processSession(SessionFilter.java:96) at com.yiwugou.reb.web.filter.SessionFilter.doFilter(SessionFilter.java:51) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:501) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:98) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1040) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:607) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:315) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
百度后解决问题。
private Key initKeyForAES(String key) throws NoSuchAlgorithmException {
if (null == key || key.length() == 0) {
throw new NullPointerException("key not is null");
}
SecretKeySpec key2 = null;try {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128, new SecureRandom(key.getBytes()));
SecretKey secretKey = kgen.generateKey();
byte[] enCodeFormat = secretKey.getEncoded();
key2 = new SecretKeySpec(enCodeFormat, "AES");
} catch (NoSuchAlgorithmException ex) {
throw new NoSuchAlgorithmException();
}
return key2;
}
private Key initKeyForAES(String key) throws NoSuchAlgorithmException {
if (null == key || key.length() == 0) {
throw new NullPointerException("key not is null");
}
SecretKeySpec key2 = null;
SecureRandom random = SecureRandom.getInstance("SHA1PRNG");
random.setSeed(key.getBytes());
try {
KeyGenerator kgen = KeyGenerator.getInstance("AES");
kgen.init(128, random);
SecretKey secretKey = kgen.generateKey();
byte[] enCodeFormat = secretKey.getEncoded();
key2 = new SecretKeySpec(enCodeFormat, "AES");
} catch (NoSuchAlgorithmException ex) {
throw new NoSuchAlgorithmException();
}
return key2;
}