rsa-verify.cpp

/// \file rsa-verify.cpp
#include <iostream>
#include <jwt-cpp/jwt.h>

int main() {
	std::string rsa_pub_key = R"(-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuGbXWiK3dQTyCbX5xdE4
yCuYp0AF2d15Qq1JSXT/lx8CEcXb9RbDddl8jGDv+spi5qPa8qEHiK7FwV2KpRE9
83wGPnYsAm9BxLFb4YrLYcDFOIGULuk2FtrPS512Qea1bXASuvYXEpQNpGbnTGVs
WXI9C+yjHztqyL2h8P6mlThPY9E9ue2fCqdgixfTFIF9Dm4SLHbphUS2iw7w1JgT
69s7of9+I9l5lsJ9cozf1rxrXX4V1u/SotUuNB3Fp8oB4C1fLBEhSlMcUJirz1E8
AziMCxS+VrRPDM+zfvpIJg3JljAh3PJHDiLu902v9w+Iplu1WyoB2aPfitxEhRN0
YwIDAQAB
-----END PUBLIC KEY-----)";

	std::string token = "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXUyJ9.eyJpc3MiOiJhdXRoMCJ9."
						"VA2i1ui1cnoD6I3wnji1WAVCf29EekysvevGrT2GXqK1dDMc8"
						"HAZCTQxa1Q8NppnpYV-hlqxh-X3Bb0JOePTGzjynpNZoJh2aHZD-"
						"GKpZt7OO1Zp8AFWPZ3p8Cahq8536fD8RiBES9jRsvChZvOqA7gMcFc4"
						"YD0iZhNIcI7a654u5yPYyTlf5kjR97prCf_OXWRn-bYY74zna4p_bP9oWCL4BkaoRcMxi-"
						"IR7kmVcCnvbYqyIrKloXP2qPO442RBGqU7Ov9"
						"sGQxiVqtRHKXZR9RbfvjrErY1KGiCp9M5i2bsUHadZEY44FE2jiOmx-"
						"uc2z5c05CCXqVSpfCjWbh9gQ";

	/* [allow rsa algorithm] */
	auto verify = jwt::verify()
					  // We only need an RSA public key to verify tokens
					  .allow_algorithm(jwt::algorithm::rs256(rsa_pub_key, "", "", ""))
					  // We expect token to come from a known authorization server
					  .with_issuer("auth0");
	/* [allow rsa algorithm] */

	auto decoded = jwt::decode(token);

	verify.verify(decoded);

	for (auto& e : decoded.get_header_json())
		std::cout << e.first << " = " << e.second << std::endl;
	for (auto& e : decoded.get_payload_json())
		std::cout << e.first << " = " << e.second << std::endl;
}