+ BOOST_REQUIRE( ERR_get_error() != 0 ); // RSA_padding_check_PKCS1_type_1:block type is not 01
+ BOOST_REQUIRE( ERR_get_error() != 0 ); // RSA_EAY_PUBLIC_DECRYPT:padding check failed
+ BOOST_REQUIRE( ERR_get_error() != 0 ); // ASN1_item_verify:EVP lib
+ BOOST_REQUIRE( ERR_get_error() == 0 );