Have UD returned signed info

go.mod

@@ -54,7 +54,7 @@ require (
 	github.com/tyler-smith/go-bip39 v1.1.0 // indirect
 	github.com/zeebo/blake3 v0.1.1 // indirect
 	gitlab.com/elixxir/bloomfilter v0.0.0-20211222005329-7d931ceead6f // indirect
-	gitlab.com/elixxir/comms v0.0.4-0.20220826165747-4821117053d5 // indirect
+	gitlab.com/elixxir/comms v0.0.4-0.20220826182001-60e297d65b6c // indirect
 	gitlab.com/elixxir/ekv v0.1.7 // indirect
 	gitlab.com/xx_network/ring v0.0.3-0.20220222211904-da613960ad93 // indirect
 	go.uber.org/ratelimit v0.2.0 // indirect

go.sum

@@ -570,6 +570,10 @@ gitlab.com/elixxir/comms v0.0.4-0.20220819220424-f2328c8b26b1 h1:KZ8wKOenvQaYNKo
 gitlab.com/elixxir/comms v0.0.4-0.20220819220424-f2328c8b26b1/go.mod h1:j6so9oYAj2YRjOOu11gFBldtxy4ez/oPkYfqM2J1q1k=
 gitlab.com/elixxir/comms v0.0.4-0.20220826165747-4821117053d5 h1:iFNhvChvfRN9g29HvdngQ9R613H++WS7B/XgfJJRVzs=
 gitlab.com/elixxir/comms v0.0.4-0.20220826165747-4821117053d5/go.mod h1:j6so9oYAj2YRjOOu11gFBldtxy4ez/oPkYfqM2J1q1k=
+gitlab.com/elixxir/comms v0.0.4-0.20220826181555-87e3c7821fa0 h1:i71gTlUC6y83cKMIN9ttA4NK8mzawaWdOqVHmVjShtA=
+gitlab.com/elixxir/comms v0.0.4-0.20220826181555-87e3c7821fa0/go.mod h1:j6so9oYAj2YRjOOu11gFBldtxy4ez/oPkYfqM2J1q1k=
+gitlab.com/elixxir/comms v0.0.4-0.20220826182001-60e297d65b6c h1:yZwll9fm84J7AfULhekk3F/e/Ubhf1OOyJdvSPuUASU=
+gitlab.com/elixxir/comms v0.0.4-0.20220826182001-60e297d65b6c/go.mod h1:j6so9oYAj2YRjOOu11gFBldtxy4ez/oPkYfqM2J1q1k=
 gitlab.com/elixxir/crypto v0.0.0-20200804182833-984246dea2c4/go.mod h1:ucm9SFKJo+K0N2GwRRpaNr+tKXMIOVWzmyUD0SbOu2c=
 gitlab.com/elixxir/crypto v0.0.3/go.mod h1:ZNgBOblhYToR4m8tj4cMvJ9UsJAUKq+p0gCp07WQmhA=
 gitlab.com/elixxir/crypto v0.0.7-0.20220317172048-3de167bd9406/go.mod h1:tD6XjtQh87T2nKZL5I/pYPck5M2wLpkZ1Oz7H/LqO10=

io/validateUsername.go

@@ -26,7 +26,7 @@ const (
 func validateUsername(request *pb.UsernameValidationRequest,
 	store *storage.Storage, privKey *rsa.PrivateKey, rng io.Reader) (*pb.UsernameValidation, error) {
 	// Return an error if the request is invalid
-	if request == nil || request.Username == "" {
+	if request == nil || request.UserId == nil {
 		return &pb.UsernameValidation{}, errors.New("Unable to parse required " +
 			"fields in registration message")
 	}
@@ -46,16 +46,9 @@ func validateUsername(request *pb.UsernameValidationRequest,
 			userID)
 	}
 
-	// Check that the username in storage matches the username in the request message
-	// before validating
-	if user.Username != request.Username {
-		return &pb.UsernameValidation{}, errors.Errorf(usernameNotAssociatedWithUser,
-			request.Username, userID)
-	}
-
 	// Create a signature verifying the user owns their username
 	verificationSignature, err := crust.SignVerification(rng, privKey,
-		request.Username, []byte(user.RsaPub))
+		user.Username, []byte(user.RsaPub))
 	if err != nil {
 		return nil, errors.Errorf("Failed to create verification signature: %v", err)
 	}

io/validateUsername_test.go

@@ -54,8 +54,6 @@ func TestValidateUsername(t *testing.T) {
 	username := registerMsg.Frs.Fact.Fact
 	pubKeyPem := []byte(registerMsg.RSAPublicPem)
 	validationRequest := &pb.UsernameValidationRequest{
-		Username:              username,
-		ReceptionPublicKeyPem: pubKeyPem,
 		UserId: registerMsg.UID,
 	}
 
@@ -104,18 +102,4 @@ func TestValidateUsername_UsernameMismatch(t *testing.T) {
 		t.Errorf("Failed happy path: %v", err)
 	}
 
-	// Test Validate username ----------------------------------------------------------------------
-	pubKeyPem := []byte(registerMsg.RSAPublicPem)
-	validationRequest := &pb.UsernameValidationRequest{
-		Username:              "admin",
-		ReceptionPublicKeyPem: pubKeyPem,
-		UserId:                registerMsg.UID,
-	}
-
-	// Send a validation request using a username that does not belong to this user
-	_, err = validateUsername(validationRequest, store, rsaPrivKey, rand.Reader)
-	if err == nil { // This should return an error
-		t.Fatalf("Should not be able to validate username that is not ours")
-	}
-
 }