Remove workaround for certs on go1.1.2.

btcd now requires go1.2.  A note to that effect is in README.md.

README.md

@@ -35,6 +35,8 @@ https://github.com/conformal/btcd/releases
 
 - Install Go according to the installation instructions here:
   http://golang.org/doc/install
+  btcd requires features only available in go1.2 or later.  At
+  present, that means you must install go1.2rc5 or later.
 
 - Run the following command to obtain btcd, all dependencies, and install it:
   ```$ go get github.com/conformal/btcd```

ofc.go

@@ -1,60 +0,0 @@
-// Copyright 2012 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the Golang LICENSE file.
-
-package main
-
-import (
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"encoding/asn1"
-	"errors"
-)
-
-// ecPrivateKey reflects an ASN.1 Elliptic Curve Private Key Structure.
-// References:
-//   RFC5915
-//   SEC1 - http://www.secg.org/download/aid-780/sec1-v2.pdf
-// Per RFC5915 the NamedCurveOID is marked as ASN.1 OPTIONAL, however in
-// most cases it is not.
-type ecPrivateKey struct {
-	Version       int
-	PrivateKey    []byte
-	NamedCurveOID asn1.ObjectIdentifier `asn1:"optional,explicit,tag:0"`
-	PublicKey     asn1.BitString        `asn1:"optional,explicit,tag:1"`
-}
-
-var (
-	oidNamedCurveP224 = asn1.ObjectIdentifier{1, 3, 132, 0, 33}
-	oidNamedCurveP256 = asn1.ObjectIdentifier{1, 2, 840, 10045, 3, 1, 7}
-	oidNamedCurveP384 = asn1.ObjectIdentifier{1, 3, 132, 0, 34}
-	oidNamedCurveP521 = asn1.ObjectIdentifier{1, 3, 132, 0, 35}
-)
-
-func oidFromNamedCurve(curve elliptic.Curve) (asn1.ObjectIdentifier, bool) {
-	switch curve {
-	case elliptic.P224():
-		return oidNamedCurveP224, true
-	case elliptic.P256():
-		return oidNamedCurveP256, true
-	case elliptic.P384():
-		return oidNamedCurveP384, true
-	case elliptic.P521():
-		return oidNamedCurveP521, true
-	}
-
-	return nil, false
-}
-
-func MarshalECPrivateKey(key *ecdsa.PrivateKey) ([]byte, error) {
-	oid, ok := oidFromNamedCurve(key.Curve)
-	if !ok {
-		return nil, errors.New("x509: unknown elliptic curve")
-	}
-	return asn1.Marshal(ecPrivateKey{
-		Version:       1,
-		PrivateKey:    key.D.Bytes(),
-		NamedCurveOID: oid,
-		PublicKey:     asn1.BitString{Bytes: elliptic.Marshal(key.Curve, key.X, key.Y)},
-	})
-}

rpcserver.go

@@ -410,7 +410,7 @@ func genKey(key, cert string) error {
 		os.Remove(cert)
 		return err
 	}
-	keybytes, err := MarshalECPrivateKey(priv)
+	keybytes, err := x509.MarshalECPrivateKey(priv)
 	if err != nil {
 		os.Remove(key)
 		os.Remove(cert)