1 files changed, 0 insertions, 537 deletions
diff --git a/vendor/gopkg.in/square/go-jose.v2/jwk.go b/vendor/gopkg.in/square/go-jose.v2/jwk.go
deleted file mode 100644
index 8e8f9e7f7..000000000
--- a/vendor/gopkg.in/square/go-jose.v2/jwk.go
+++ /dev/null
@@ -1,537 +0,0 @@
-/*-
- * Copyright 2014 Square Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package jose
-
-import (
-	"crypto"
-	"crypto/ecdsa"
-	"crypto/elliptic"
-	"crypto/rsa"
-	"crypto/x509"
-	"encoding/base64"
-	"errors"
-	"fmt"
-	"math/big"
-	"reflect"
-	"strings"
-
-	"golang.org/x/crypto/ed25519"
-
-	"gopkg.in/square/go-jose.v2/json"
-)
-
-// rawJSONWebKey represents a public or private key in JWK format, used for parsing/serializing.
-type rawJSONWebKey struct {
-	Use string      `json:"use,omitempty"`
-	Kty string      `json:"kty,omitempty"`
-	Kid string      `json:"kid,omitempty"`
-	Crv string      `json:"crv,omitempty"`
-	Alg string      `json:"alg,omitempty"`
-	K   *byteBuffer `json:"k,omitempty"`
-	X   *byteBuffer `json:"x,omitempty"`
-	Y   *byteBuffer `json:"y,omitempty"`
-	N   *byteBuffer `json:"n,omitempty"`
-	E   *byteBuffer `json:"e,omitempty"`
-	// -- Following fields are only used for private keys --
-	// RSA uses D, P and Q, while ECDSA uses only D. Fields Dp, Dq, and Qi are
-	// completely optional. Therefore for RSA/ECDSA, D != nil is a contract that
-	// we have a private key whereas D == nil means we have only a public key.
-	D  *byteBuffer `json:"d,omitempty"`
-	P  *byteBuffer `json:"p,omitempty"`
-	Q  *byteBuffer `json:"q,omitempty"`
-	Dp *byteBuffer `json:"dp,omitempty"`
-	Dq *byteBuffer `json:"dq,omitempty"`
-	Qi *byteBuffer `json:"qi,omitempty"`
-	// Certificates
-	X5c []string `json:"x5c,omitempty"`
-}
-
-// JSONWebKey represents a public or private key in JWK format.
-type JSONWebKey struct {
-	Key          interface{}
-	Certificates []*x509.Certificate
-	KeyID        string
-	Algorithm    string
-	Use          string
-}
-
-// MarshalJSON serializes the given key to its JSON representation.
-func (k JSONWebKey) MarshalJSON() ([]byte, error) {
-	var raw *rawJSONWebKey
-	var err error
-
-	switch key := k.Key.(type) {
-	case ed25519.PublicKey:
-		raw = fromEdPublicKey(key)
-	case *ecdsa.PublicKey:
-		raw, err = fromEcPublicKey(key)
-	case *rsa.PublicKey:
-		raw = fromRsaPublicKey(key)
-	case ed25519.PrivateKey:
-		raw, err = fromEdPrivateKey(key)
-	case *ecdsa.PrivateKey:
-		raw, err = fromEcPrivateKey(key)
-	case *rsa.PrivateKey:
-		raw, err = fromRsaPrivateKey(key)
-	case []byte:
-		raw, err = fromSymmetricKey(key)
-	default:
-		return nil, fmt.Errorf("square/go-jose: unknown key type '%s'", reflect.TypeOf(key))
-	}
-
-	if err != nil {
-		return nil, err
-	}
-
-	raw.Kid = k.KeyID
-	raw.Alg = k.Algorithm
-	raw.Use = k.Use
-
-	for _, cert := range k.Certificates {
-		raw.X5c = append(raw.X5c, base64.StdEncoding.EncodeToString(cert.Raw))
-	}
-
-	return json.Marshal(raw)
-}
-
-// UnmarshalJSON reads a key from its JSON representation.
-func (k *JSONWebKey) UnmarshalJSON(data []byte) (err error) {
-	var raw rawJSONWebKey
-	err = json.Unmarshal(data, &raw)
-	if err != nil {
-		return err
-	}
-
-	var key interface{}
-	switch raw.Kty {
-	case "EC":
-		if raw.D != nil {
-			key, err = raw.ecPrivateKey()
-		} else {
-			key, err = raw.ecPublicKey()
-		}
-	case "RSA":
-		if raw.D != nil {
-			key, err = raw.rsaPrivateKey()
-		} else {
-			key, err = raw.rsaPublicKey()
-		}
-	case "oct":
-		key, err = raw.symmetricKey()
-	case "OKP":
-		if raw.Crv == "Ed25519" && raw.X != nil {
-			if raw.D != nil {
-				key, err = raw.edPrivateKey()
-			} else {
-				key, err = raw.edPublicKey()
-			}
-		} else {
-			err = fmt.Errorf("square/go-jose: unknown curve %s'", raw.Crv)
-		}
-	default:
-		err = fmt.Errorf("square/go-jose: unknown json web key type '%s'", raw.Kty)
-	}
-
-	if err == nil {
-		*k = JSONWebKey{Key: key, KeyID: raw.Kid, Algorithm: raw.Alg, Use: raw.Use}
-	}
-
-	k.Certificates = make([]*x509.Certificate, len(raw.X5c))
-	for i, cert := range raw.X5c {
-		raw, err := base64.StdEncoding.DecodeString(cert)
-		if err != nil {
-			return err
-		}
-		k.Certificates[i], err = x509.ParseCertificate(raw)
-		if err != nil {
-			return err
-		}
-	}
-
-	return
-}
-
-// JSONWebKeySet represents a JWK Set object.
-type JSONWebKeySet struct {
-	Keys []JSONWebKey `json:"keys"`
-}
-
-// Key convenience method returns keys by key ID. Specification states
-// that a JWK Set "SHOULD" use distinct key IDs, but allows for some
-// cases where they are not distinct. Hence method returns a slice
-// of JSONWebKeys.
-func (s *JSONWebKeySet) Key(kid string) []JSONWebKey {
-	var keys []JSONWebKey
-	for _, key := range s.Keys {
-		if key.KeyID == kid {
-			keys = append(keys, key)
-		}
-	}
-
-	return keys
-}
-
-const rsaThumbprintTemplate = `{"e":"%s","kty":"RSA","n":"%s"}`
-const ecThumbprintTemplate = `{"crv":"%s","kty":"EC","x":"%s","y":"%s"}`
-const edThumbprintTemplate = `{"crv":"%s","kty":"OKP",x":"%s"}`
-
-func ecThumbprintInput(curve elliptic.Curve, x, y *big.Int) (string, error) {
-	coordLength := curveSize(curve)
-	crv, err := curveName(curve)
-	if err != nil {
-		return "", err
-	}
-
-	return fmt.Sprintf(ecThumbprintTemplate, crv,
-		newFixedSizeBuffer(x.Bytes(), coordLength).base64(),
-		newFixedSizeBuffer(y.Bytes(), coordLength).base64()), nil
-}
-
-func rsaThumbprintInput(n *big.Int, e int) (string, error) {
-	return fmt.Sprintf(rsaThumbprintTemplate,
-		newBufferFromInt(uint64(e)).base64(),
-		newBuffer(n.Bytes()).base64()), nil
-}
-
-func edThumbprintInput(ed ed25519.PublicKey) (string, error) {
-	crv := "Ed25519"
-	return fmt.Sprintf(edThumbprintTemplate, crv,
-		newFixedSizeBuffer(ed, 32).base64()), nil
-}
-
-// Thumbprint computes the JWK Thumbprint of a key using the
-// indicated hash algorithm.
-func (k *JSONWebKey) Thumbprint(hash crypto.Hash) ([]byte, error) {
-	var input string
-	var err error
-	switch key := k.Key.(type) {
-	case ed25519.PublicKey:
-		input, err = edThumbprintInput(key)
-	case *ecdsa.PublicKey:
-		input, err = ecThumbprintInput(key.Curve, key.X, key.Y)
-	case *ecdsa.PrivateKey:
-		input, err = ecThumbprintInput(key.Curve, key.X, key.Y)
-	case *rsa.PublicKey:
-		input, err = rsaThumbprintInput(key.N, key.E)
-	case *rsa.PrivateKey:
-		input, err = rsaThumbprintInput(key.N, key.E)
-	case ed25519.PrivateKey:
-		input, err = edThumbprintInput(ed25519.PublicKey(key[0:32]))
-	default:
-		return nil, fmt.Errorf("square/go-jose: unknown key type '%s'", reflect.TypeOf(key))
-	}
-
-	if err != nil {
-		return nil, err
-	}
-
-	h := hash.New()
-	h.Write([]byte(input))
-	return h.Sum(nil), nil
-}
-
-// IsPublic returns true if the JWK represents a public key (not symmetric, not private).
-func (k *JSONWebKey) IsPublic() bool {
-	switch k.Key.(type) {
-	case *ecdsa.PublicKey, *rsa.PublicKey, *ed25519.PublicKey:
-		return true
-	default:
-		return false
-	}
-}
-
-// Valid checks that the key contains the expected parameters.
-func (k *JSONWebKey) Valid() bool {
-	if k.Key == nil {
-		return false
-	}
-	switch key := k.Key.(type) {
-	case *ecdsa.PublicKey:
-		if key.Curve == nil || key.X == nil || key.Y == nil {
-			return false
-		}
-	case *ecdsa.PrivateKey:
-		if key.Curve == nil || key.X == nil || key.Y == nil || key.D == nil {
-			return false
-		}
-	case *rsa.PublicKey:
-		if key.N == nil || key.E == 0 {
-			return false
-		}
-	case *rsa.PrivateKey:
-		if key.N == nil || key.E == 0 || key.D == nil || len(key.Primes) < 2 {
-			return false
-		}
-	case *ed25519.PublicKey:
-		if len(*key) != 32 {
-			return false
-		}
-	case *ed25519.PrivateKey:
-		if len(*key) != 64 {
-			return false
-		}
-	default:
-		return false
-	}
-	return true
-}
-
-func (key rawJSONWebKey) rsaPublicKey() (*rsa.PublicKey, error) {
-	if key.N == nil || key.E == nil {
-		return nil, fmt.Errorf("square/go-jose: invalid RSA key, missing n/e values")
-	}
-
-	return &rsa.PublicKey{
-		N: key.N.bigInt(),
-		E: key.E.toInt(),
-	}, nil
-}
-
-func fromEdPublicKey(pub ed25519.PublicKey) *rawJSONWebKey {
-	return &rawJSONWebKey{
-		Kty: "OKP",
-		Crv: "Ed25519",
-		X:   newBuffer(pub),
-	}
-}
-
-func fromRsaPublicKey(pub *rsa.PublicKey) *rawJSONWebKey {
-	return &rawJSONWebKey{
-		Kty: "RSA",
-		N:   newBuffer(pub.N.Bytes()),
-		E:   newBufferFromInt(uint64(pub.E)),
-	}
-}
-
-func (key rawJSONWebKey) ecPublicKey() (*ecdsa.PublicKey, error) {
-	var curve elliptic.Curve
-	switch key.Crv {
-	case "P-256":
-		curve = elliptic.P256()
-	case "P-384":
-		curve = elliptic.P384()
-	case "P-521":
-		curve = elliptic.P521()
-	default:
-		return nil, fmt.Errorf("square/go-jose: unsupported elliptic curve '%s'", key.Crv)
-	}
-
-	if key.X == nil || key.Y == nil {
-		return nil, errors.New("square/go-jose: invalid EC key, missing x/y values")
-	}
-
-	x := key.X.bigInt()
-	y := key.Y.bigInt()
-
-	if !curve.IsOnCurve(x, y) {
-		return nil, errors.New("square/go-jose: invalid EC key, X/Y are not on declared curve")
-	}
-
-	return &ecdsa.PublicKey{
-		Curve: curve,
-		X:     x,
-		Y:     y,
-	}, nil
-}
-
-func fromEcPublicKey(pub *ecdsa.PublicKey) (*rawJSONWebKey, error) {
-	if pub == nil || pub.X == nil || pub.Y == nil {
-		return nil, fmt.Errorf("square/go-jose: invalid EC key (nil, or X/Y missing)")
-	}
-
-	name, err := curveName(pub.Curve)
-	if err != nil {
-		return nil, err
-	}
-
-	size := curveSize(pub.Curve)
-
-	xBytes := pub.X.Bytes()
-	yBytes := pub.Y.Bytes()
-
-	if len(xBytes) > size || len(yBytes) > size {
-		return nil, fmt.Errorf("square/go-jose: invalid EC key (X/Y too large)")
-	}
-
-	key := &rawJSONWebKey{
-		Kty: "EC",
-		Crv: name,
-		X:   newFixedSizeBuffer(xBytes, size),
-		Y:   newFixedSizeBuffer(yBytes, size),
-	}
-
-	return key, nil
-}
-
-func (key rawJSONWebKey) edPrivateKey() (ed25519.PrivateKey, error) {
-	var missing []string
-	switch {
-	case key.D == nil:
-		missing = append(missing, "D")
-	case key.X == nil:
-		missing = append(missing, "X")
-	}
-
-	if len(missing) > 0 {
-		return nil, fmt.Errorf("square/go-jose: invalid Ed25519 private key, missing %s value(s)", strings.Join(missing, ", "))
-	}
-
-	privateKey := make([]byte, ed25519.PrivateKeySize)
-	copy(privateKey[0:32], key.X.bytes())
-	copy(privateKey[32:], key.D.bytes())
-	rv := ed25519.PrivateKey(privateKey)
-	return rv, nil
-}
-
-func (key rawJSONWebKey) edPublicKey() (ed25519.PublicKey, error) {
-	if key.X == nil {
-		return nil, fmt.Errorf("square/go-jose: invalid Ed key, missing x value")
-	}
-	publicKey := make([]byte, ed25519.PublicKeySize)
-	copy(publicKey[0:32], key.X.bytes())
-	rv := ed25519.PublicKey(publicKey)
-	return rv, nil
-}
-
-func (key rawJSONWebKey) rsaPrivateKey() (*rsa.PrivateKey, error) {
-	var missing []string
-	switch {
-	case key.N == nil:
-		missing = append(missing, "N")
-	case key.E == nil:
-		missing = append(missing, "E")
-	case key.D == nil:
-		missing = append(missing, "D")
-	case key.P == nil:
-		missing = append(missing, "P")
-	case key.Q == nil:
-		missing = append(missing, "Q")
-	}
-
-	if len(missing) > 0 {
-		return nil, fmt.Errorf("square/go-jose: invalid RSA private key, missing %s value(s)", strings.Join(missing, ", "))
-	}
-
-	rv := &rsa.PrivateKey{
-		PublicKey: rsa.PublicKey{
-			N: key.N.bigInt(),
-			E: key.E.toInt(),
-		},
-		D: key.D.bigInt(),
-		Primes: []*big.Int{
-			key.P.bigInt(),
-			key.Q.bigInt(),
-		},
-	}
-
-	if key.Dp != nil {
-		rv.Precomputed.Dp = key.Dp.bigInt()
-	}
-	if key.Dq != nil {
-		rv.Precomputed.Dq = key.Dq.bigInt()
-	}
-	if key.Qi != nil {
-		rv.Precomputed.Qinv = key.Qi.bigInt()
-	}
-
-	err := rv.Validate()
-	return rv, err
-}
-
-func fromEdPrivateKey(ed ed25519.PrivateKey) (*rawJSONWebKey, error) {
-	raw := fromEdPublicKey(ed25519.PublicKey(ed[0:32]))
-
-	raw.D = newBuffer(ed[32:])
-	return raw, nil
-}
-
-func fromRsaPrivateKey(rsa *rsa.PrivateKey) (*rawJSONWebKey, error) {
-	if len(rsa.Primes) != 2 {
-		return nil, ErrUnsupportedKeyType
-	}
-
-	raw := fromRsaPublicKey(&rsa.PublicKey)
-
-	raw.D = newBuffer(rsa.D.Bytes())
-	raw.P = newBuffer(rsa.Primes[0].Bytes())
-	raw.Q = newBuffer(rsa.Primes[1].Bytes())
-
-	return raw, nil
-}
-
-func (key rawJSONWebKey) ecPrivateKey() (*ecdsa.PrivateKey, error) {
-	var curve elliptic.Curve
-	switch key.Crv {
-	case "P-256":
-		curve = elliptic.P256()
-	case "P-384":
-		curve = elliptic.P384()
-	case "P-521":
-		curve = elliptic.P521()
-	default:
-		return nil, fmt.Errorf("square/go-jose: unsupported elliptic curve '%s'", key.Crv)
-	}
-
-	if key.X == nil || key.Y == nil || key.D == nil {
-		return nil, fmt.Errorf("square/go-jose: invalid EC private key, missing x/y/d values")
-	}
-
-	x := key.X.bigInt()
-	y := key.Y.bigInt()
-
-	if !curve.IsOnCurve(x, y) {
-		return nil, errors.New("square/go-jose: invalid EC key, X/Y are not on declared curve")
-	}
-
-	return &ecdsa.PrivateKey{
-		PublicKey: ecdsa.PublicKey{
-			Curve: curve,
-			X:     x,
-			Y:     y,
-		},
-		D: key.D.bigInt(),
-	}, nil
-}
-
-func fromEcPrivateKey(ec *ecdsa.PrivateKey) (*rawJSONWebKey, error) {
-	raw, err := fromEcPublicKey(&ec.PublicKey)
-	if err != nil {
-		return nil, err
-	}
-
-	if ec.D == nil {
-		return nil, fmt.Errorf("square/go-jose: invalid EC private key")
-	}
-
-	raw.D = newBuffer(ec.D.Bytes())
-
-	return raw, nil
-}
-
-func fromSymmetricKey(key []byte) (*rawJSONWebKey, error) {
-	return &rawJSONWebKey{
-		Kty: "oct",
-		K:   newBuffer(key),
-	}, nil
-}
-
-func (key rawJSONWebKey) symmetricKey() ([]byte, error) {
-	if key.K == nil {
-		return nil, fmt.Errorf("square/go-jose: invalid OCT (symmetric) key, missing k value")
-	}
-	return key.K.bytes(), nil
-}