Has anyone had success storing and retrieving a PKCS12 keystore in OpenLDAP?
I store the keystore in a ByteArrayOutputStream, then store the bytes in
OpenLDAP. The bytes get stored, but as a string. When I retrieve the string,
it's almost right, but any negative bytes have been replaced with decimal
63. Here's a snippet of the store:

   KeyStore ks = ...
   ByteArrayOutputStream baos = new ByteArrayOutputStream();
   ks.store(baos, keystorePassphrase.toCharArray());
   Attribute newattr = new BasicAttribute(pkcs12Name, baos.toByteArray());
   attrs.put(newattr);
   ctx.modifyAttributes(dn, DirContext.ADD_ATTRIBUTE, attrs);

Here's the retrieval:

   Attribute attr = attrs.get(pkcs12Name);
   String o = (String)attr.get();
   byte[] bytes = (byte[]) o.getBytes();

   ByteArrayInputStreambais = new ByteArrayInputStream(bytes);
   KeyStore ks = KeyStore.getInstance("PKCS12", "BC");
   ks.load(bais, keystorePassphrase.toCharArray());