D5945.id19721.diff
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D5945.id19721.diff
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	diff --git a/services/tunnelbroker/src/server/tools.rs b/services/tunnelbroker/src/server/tools.rs
	--- a/services/tunnelbroker/src/server/tools.rs
	+++ b/services/tunnelbroker/src/server/tools.rs
	@@ -1,4 +1,7 @@
	use crate::server::GRPCStatusCodes;
	+use openssl::pkey::PKey;
	+use openssl::sign::Verifier;
	+use openssl::{error::ErrorStack, hash::MessageDigest};
	use tonic::{Code, Status};

	pub fn create_tonic_status(code: GRPCStatusCodes, text: &str) -> Status {
	@@ -24,3 +27,15 @@
	};
	Status::new(status, text)
	}
	+
	+pub fn verify_signed_string(
	+ public_key_pem: &str,
	+ string_to_be_signed: &str,
	+ base64_signature: &str,
	+) -> Result<bool, ErrorStack> {
	+ let public_key = PKey::public_key_from_pem(public_key_pem.as_bytes())?;
	+ let mut verifier =
	+ Verifier::new(MessageDigest::sha256(), &public_key).unwrap();
	+ verifier.update(string_to_be_signed.as_bytes()).unwrap();
	+ verifier.verify(&base64::decode(base64_signature).unwrap())
	+}