Why java security NoSuchProviderException No such provider BC

Question

The jar  bcprov-jdk16-145 jar  has been added to the project  Security addProvider new org bouncycastle jce provider BouncyCastleProvider    has been added to the class  and BouncyCastleProvider PROVIDER NAME does return  BC  but AesFileIo writeFile   still throws java security NoSuchProviderException No such provider  BC  Any ideas   import java io FileOutputStream  import java io InputStreamReader  import java io ObjectOutputStream  import javax crypto Cipher  import javax crypto spec IvParameterSpec  import javax crypto spec SecretKeySpec  import org bouncycastle jce provider BouncyCastleProvider   public class AesFileIo        private static final String AES ALGORITHM    AES CTR NoPadding       private static final String PROVIDER   BouncyCastleProvider PROVIDER NAME      private static final byte   AES KEY 128        Hard coded for now         78  -90  42  70  -5  20  -114  103          -99  -25  76  95  -85  94  57  54       private static final byte   IV        Hard coded for now         -85  -67  -5  88  28  49  49  85          114  83  -40  119  -65  91  76  108       private static final SecretKeySpec secretKeySpec               new SecretKeySpec AES KEY 128   AES        private static final IvParameterSpec ivSpec   new IvParameterSpec IV        public void AesFileIo             Security addProvider new org bouncycastle jce provider                  BouncyCastleProvider                public void writeFile String fileName  String theFile            try               Cipher cipher   Cipher getInstance AES ALGORITHM  PROVIDER               cipher init Cipher ENCRYPT MODE  secretKeySpec  ivSpec               byte   encrypted   cipher doFinal theFile getBytes                 ObjectOutputStream os   new ObjectOutputStream                  new FileOutputStream fileName                os write encrypted               os flush                os close              catch  Exception e                StackTraceElement se   new Exception   getStackTrace   0               System err println se getFileName           se getLineNumber                               e

User · Answer

you can add security provider by editing java.security by adding security.provider.=org.bouncycastle.jce.provider.BouncyCastleProvider

or add a line in your top of your class

Security.addProvider(new BouncyCastleProvider());

you can use below line to specify provider while specifying algorithms

Cipher cipher = Cipher.getInstance("AES", "SunJCE");

if you are using other provider like Bouncy Castle then

Cipher cipher =  Cipher.getInstance("AES", "BC");

User · Answer

My experience with this was that when I had this in every execution it was fine using the provider as a string like this  Security addProvider new BounctCastleProvider     new JcaPEMKeyConverter   setProvider  BC      But when I optimized and put the following in the constructor      if bounctCastleProvider    null          bounctCastleProvider   new BouncyCastleProvider               if Security getProvider bouncyCastleProvider getName       null          Security addProvider bouncyCastleProvider           Then I had to use provider like this or I would get the above error   new JcaPEMKeyConverter   setProvider bouncyCastleProvider     I am using bcpkix-jdk15on version 1 65

User · Answer

You can add security provider by editing java security with using following code with creating static block   static       Security addProvider new BouncyCastleProvider         If you are using maven project  then you will have to add dependency for BouncyCastleProvider as follows in pom xml file of your project    lt dependency gt               lt groupId gt org bouncycastle lt  groupId gt               lt artifactId gt bcprov-jdk15on lt  artifactId gt               lt version gt 1 47 lt  version gt   lt  dependency gt    If you are using normal java project  then you can add download bcprov-jdk15on-147 jar from the link given below and edit your classpath   http   www java2s com Code Jar b Downloadbcprovextjdk15on147jar htm

User · Answer

Im not very familiar with the Android sdk  but it seems that the android-sdk comes with the BouncyCastle provider already added to the security   What you will have to do in the PC environment is just add it manually   Security addProvider new org bouncycastle jce provider BouncyCastleProvider       if you have access to the policy file  just add an entry like   security provider 5 org bouncycastle jce provider BouncyCastleProvider    Notice the  5 it is equal to a sequential number of the already added providers

User · Answer

For those who are using web servers make sure that the bcprov-jdk16-145 jar has been installed in you servers lib  for weblogic had to put the jar in    lt weblogic jdk home gt  jre lib ext

[java] Why java.security.NoSuchProviderException No such provider: BC?

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