CertificateUtil.validatePath(certs,anchors);
}
// this is for computing a digest to check sanity
MessageDigest sha1 = MessageDigest.getInstance("SHA1");
DigestOutputStream dos = new DigestOutputStream(new NullOutputStream(),sha1);
// this is for computing a signature
Signature sig = Signature.getInstance("SHA1withRSA");
sig.initVerify(certs.get(0));
SignatureOutputStream sos = new SignatureOutputStream(sig);