tor-dam

commit 0c8ccaabf122b19a04eb991da71177dbaef6bf2e
parent e4164289bf78ce6142d87fa4200d3c2fa2b61b67
Author: parazyd <parazyd@dyne.org>
Date:   Thu,  7 Dec 2017 22:01:15 +0100

Bug #23032 resolved.

Diffstat:
M
go/lib/crypto.go
 | 
18
++++++------------
M
go/lib/helpers.go
 | 
22
++++++++++------------

2 files changed, 16 insertions(+), 24 deletions(-)
diff --git a/go/lib/crypto.go b/go/lib/crypto.go
@@ -136,19 +136,13 @@ func OnionFromPubkey(pubkey rsa.PublicKey) string {
 // ParsePubkey parses a []byte form of a RSA public key and returns the proper
 // type.
 func ParsePubkey(pubkey []byte) (*rsa.PublicKey, error) {
-	block, _ := pem.Decode(pubkey)
-	if block == nil {
-		return nil, errors.New("Failed to parse PEM block containing the public key.")
-	}
+	var pub rsa.PublicKey
+	var ret *rsa.PublicKey
 
-	// FIXME: Golang bug. Reported at: https://github.com/golang/go/issues/23032
-	pub, err := x509.ParsePKIXPublicKey(block.Bytes)
+	block, _ := pem.Decode(pubkey)
+	_, err := asn1.Unmarshal(block.Bytes, &pub)
 	CheckError(err)
 
-	switch pub := pub.(type) {
-	case *rsa.PublicKey:
-		return pub, nil
-	default:
-		return nil, errors.New("Invalid type of public key")
-	}
+	ret = &pub
+	return ret, nil
 }
diff --git a/go/lib/helpers.go b/go/lib/helpers.go
@@ -84,19 +84,17 @@ func ValidateReq(req map[string]string) ([]byte, bool) {
 		pubkey = FetchHSPubkey(req["address"])
 	}
 
-	// FIXME: commented until bug 23032 is resolved.
-	// https://github.com/golang/go/issues/23032
 	// Validate signature.
-	/*
-		msg := []byte(req["message"])
-		sig := []byte(req["signature"])
-		pub := []byte(pubkey)
-			val, err := VerifyMsg(msg, sig, pub)
-			CheckError(err)
-			if val != true {
-				return false
-			}
-	*/
+	msg := []byte(req["message"])
+	sig := []byte(req["signature"])
+	pub, err := ParsePubkey([]byte(pubkey))
+	CheckError(err)
+
+	val, err := VerifyMsg(msg, sig, pub)
+	CheckError(err)
+	if val != true {
+		return nil, false
+	}
 
 	return []byte(pubkey), true
 }