安装BouncyCastle

对于Windows而言
将bcprov-jdk16-146.jar 复制到C:\Program Files\Java\jre6\lib\ext和C:\jdk1.6.0\jre\lib\ext目录下；
java.security有两个位置需要修改分别位于C:\Program Files\Java\jre6\lib\security目录和C:\jdk1.6.0\jre\lib\security目录下。
找到
security.provider.1=sun.security.provider.Sun
security.provider.2=sun.security.rsa.SunRsaSign
security.provider.3=com.sun.net.ssl.internal.ssl.Provider
security.provider.4=com.sun.crypto.provider.SunJCE
security.provider.5=sun.security.jgss.SunProvider
security.provider.6=com.sun.security.sasl.Provider
security.provider.7=org.jcp.xml.dsig.internal.dom.XMLDSigRI
security.provider.8=sun.security.smartcardio.SunPCSC
security.provider.9=sun.security.mscapi.SunMSCAPI
在后面添加一行
security.provider.10=org.bouncycastle.jce.provider.BouncyCastleProvider

对于Linux而言
将bcprov-jdk16-146.jar复制到$JAVA_HOME/jre/lib/ext目录下，修改文件$JAVA_HOME/jre/lib/security/java.security
找到
security.provider.1=sun.security.provider.Sun
security.provider.2=sun.security.rsa.SunRsaSign
security.provider.3=com.sun.net.ssl.internal.ssl.Provider
security.provider.4=com.sun.crypto.provider.SunJCE
security.provider.5=sun.security.jgss.SunProvider
security.provider.6=com.sun.security.sasl.Provider
security.provider.7=org.jcp.xml.dsig.internal.dom.XMLDSigRI
security.provider.8=sun.security.smartcardio.SunPCSC
在后面添加一行
security.provider.9=org.bouncycastle.jce.provider.BouncyCastleProvider

转http://nhy520.iteye.com/blog/1265325