Moves to attestation type

Author: Ruteri

README.md

@@ -102,7 +102,7 @@ This repository contains a sample [measurements.json](./measurements.json) file
 Attestation verification requires the expected measurements which you pass through the `--{client, server}-measurements` flag.  
 The measurements are expected to be a JSON map, and multiple valid measurements can be provided. The verifier will attempt to verify with each of the provided measurements, and if any succeeds, the attestation is assumed valid.  
 
-The (single) validated measurement is json-marshalled and forwarded (returned in the case of client) as "X-Flashbots-Measurement" header, and the type of attestation (validator OID) as "X-Flashbots-Ext-OID" header. For mapping OIDs to issuers, see [internal/attestation/variant/variant.go](./internal/attestation/variant/variant.go).  
+The (single) validated measurement is json-marshalled and forwarded (returned in the case of client) as "X-Flashbots-Measurement" header, and the type of attestation as "X-Flashbots-Attestation-Type" header. For mapping attestation types to OIDs and issuers, see [internal/attestation/variant/variant.go](./internal/attestation/variant/variant.go).  
 To only validate and forward the measurement (as opposed to also authorizing the measurement against an expected one), simply provide an empty expected measurements object.  
 
 ---

proxy/proxy.go

@@ -22,7 +22,7 @@ type Proxy struct {
 }
 
 const (
-	AttestationTypeHeader string = "X-Flashbots-Ext-OID"
+	AttestationTypeHeader string = "X-Flashbots-Attestation-Type"
 	MeasurementHeader     string = "X-Flashbots-Measurement"
 )
 
@@ -125,7 +125,7 @@ func (p *Proxy) copyMeasurementsToHeader(conn *tls.ConnectionState, header *http
 		return http.StatusInternalServerError, errors.New("could not marshal measurement extracted from tls extension")
 	}
 
-	header.Set(AttestationTypeHeader, ATLSExtension.Id.String())
+	header.Set(AttestationTypeHeader, atlsVariant.String())
 	header.Set(MeasurementHeader, string(marshaledPcrs))
 
 	return 0, nil