The ASN1 object identifier type is a sequence of integers that make a unique identifier. These are normally represented as textual strings that are period delimited. The Boost ASN1 library supports this data type via the oid_t class. The internal make up of the oid_t is as a vector<uint32_t>.

oit_t oidInternet("1.3.6.1");
string oidString;
oidInternet.to_string(oidString);