byte[] pkcs7 = IOUtils.readURL(uc.getInputStream());
PKCS7 p7 = new PKCS7(pkcs7);
byte[] sub = verifyChain(p7.getCertificates());
assertArrayEquals(cer, sub);
byte[] pkcs7 = IOUtils.readURL(uc.getInputStream());
PKCS7 p7 = new PKCS7(pkcs7);
byte[] sub = verifyChain(p7.getCertificates());
assertArrayEquals(cer, sub);