1 files changed, 0 insertions, 343 deletions
diff --git a/vendor/gopkg.in/square/go-jose.v2/signing.go b/vendor/gopkg.in/square/go-jose.v2/signing.go
deleted file mode 100644
index 13e956d66..000000000
--- a/vendor/gopkg.in/square/go-jose.v2/signing.go
+++ /dev/null
@@ -1,343 +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/ecdsa"
-	"crypto/rsa"
-	"encoding/base64"
-	"errors"
-	"fmt"
-
-	"golang.org/x/crypto/ed25519"
-
-	"gopkg.in/square/go-jose.v2/json"
-)
-
-// NonceSource represents a source of random nonces to go into JWS objects
-type NonceSource interface {
-	Nonce() (string, error)
-}
-
-// Signer represents a signer which takes a payload and produces a signed JWS object.
-type Signer interface {
-	Sign(payload []byte) (*JSONWebSignature, error)
-	Options() SignerOptions
-}
-
-// SigningKey represents an algorithm/key used to sign a message.
-type SigningKey struct {
-	Algorithm SignatureAlgorithm
-	Key       interface{}
-}
-
-// SignerOptions represents options that can be set when creating signers.
-type SignerOptions struct {
-	NonceSource NonceSource
-	EmbedJWK    bool
-
-	// Optional map of additional keys to be inserted into the protected header
-	// of a JWS object. Some specifications which make use of JWS like to insert
-	// additional values here. All values must be JSON-serializable.
-	ExtraHeaders map[HeaderKey]interface{}
-}
-
-// WithHeader adds an arbitrary value to the ExtraHeaders map, initializing it
-// if necessary. It returns itself and so can be used in a fluent style.
-func (so *SignerOptions) WithHeader(k HeaderKey, v interface{}) *SignerOptions {
-	if so.ExtraHeaders == nil {
-		so.ExtraHeaders = map[HeaderKey]interface{}{}
-	}
-	so.ExtraHeaders[k] = v
-	return so
-}
-
-// WithContentType adds a content type ("cty") header and returns the updated
-// SignerOptions.
-func (so *SignerOptions) WithContentType(contentType ContentType) *SignerOptions {
-	return so.WithHeader(HeaderContentType, contentType)
-}
-
-// WithType adds a type ("typ") header and returns the updated SignerOptions.
-func (so *SignerOptions) WithType(typ ContentType) *SignerOptions {
-	return so.WithHeader(HeaderType, typ)
-}
-
-type payloadSigner interface {
-	signPayload(payload []byte, alg SignatureAlgorithm) (Signature, error)
-}
-
-type payloadVerifier interface {
-	verifyPayload(payload []byte, signature []byte, alg SignatureAlgorithm) error
-}
-
-type genericSigner struct {
-	recipients   []recipientSigInfo
-	nonceSource  NonceSource
-	embedJWK     bool
-	extraHeaders map[HeaderKey]interface{}
-}
-
-type recipientSigInfo struct {
-	sigAlg    SignatureAlgorithm
-	publicKey *JSONWebKey
-	signer    payloadSigner
-}
-
-// NewSigner creates an appropriate signer based on the key type
-func NewSigner(sig SigningKey, opts *SignerOptions) (Signer, error) {
-	return NewMultiSigner([]SigningKey{sig}, opts)
-}
-
-// NewMultiSigner creates a signer for multiple recipients
-func NewMultiSigner(sigs []SigningKey, opts *SignerOptions) (Signer, error) {
-	signer := &genericSigner{recipients: []recipientSigInfo{}}
-
-	if opts != nil {
-		signer.nonceSource = opts.NonceSource
-		signer.embedJWK = opts.EmbedJWK
-		signer.extraHeaders = opts.ExtraHeaders
-	}
-
-	for _, sig := range sigs {
-		err := signer.addRecipient(sig.Algorithm, sig.Key)
-		if err != nil {
-			return nil, err
-		}
-	}
-
-	return signer, nil
-}
-
-// newVerifier creates a verifier based on the key type
-func newVerifier(verificationKey interface{}) (payloadVerifier, error) {
-	switch verificationKey := verificationKey.(type) {
-	case ed25519.PublicKey:
-		return &edEncrypterVerifier{
-			publicKey: verificationKey,
-		}, nil
-	case *rsa.PublicKey:
-		return &rsaEncrypterVerifier{
-			publicKey: verificationKey,
-		}, nil
-	case *ecdsa.PublicKey:
-		return &ecEncrypterVerifier{
-			publicKey: verificationKey,
-		}, nil
-	case []byte:
-		return &symmetricMac{
-			key: verificationKey,
-		}, nil
-	case JSONWebKey:
-		return newVerifier(verificationKey.Key)
-	case *JSONWebKey:
-		return newVerifier(verificationKey.Key)
-	default:
-		return nil, ErrUnsupportedKeyType
-	}
-}
-
-func (ctx *genericSigner) addRecipient(alg SignatureAlgorithm, signingKey interface{}) error {
-	recipient, err := makeJWSRecipient(alg, signingKey)
-	if err != nil {
-		return err
-	}
-
-	ctx.recipients = append(ctx.recipients, recipient)
-	return nil
-}
-
-func makeJWSRecipient(alg SignatureAlgorithm, signingKey interface{}) (recipientSigInfo, error) {
-	switch signingKey := signingKey.(type) {
-	case ed25519.PrivateKey:
-		return newEd25519Signer(alg, signingKey)
-	case *rsa.PrivateKey:
-		return newRSASigner(alg, signingKey)
-	case *ecdsa.PrivateKey:
-		return newECDSASigner(alg, signingKey)
-	case []byte:
-		return newSymmetricSigner(alg, signingKey)
-	case JSONWebKey:
-		return newJWKSigner(alg, signingKey)
-	case *JSONWebKey:
-		return newJWKSigner(alg, *signingKey)
-	default:
-		return recipientSigInfo{}, ErrUnsupportedKeyType
-	}
-}
-
-func newJWKSigner(alg SignatureAlgorithm, signingKey JSONWebKey) (recipientSigInfo, error) {
-	recipient, err := makeJWSRecipient(alg, signingKey.Key)
-	if err != nil {
-		return recipientSigInfo{}, err
-	}
-	if recipient.publicKey != nil {
-		// recipient.publicKey is a JWK synthesized for embedding when recipientSigInfo
-		// was created for the inner key (such as a RSA or ECDSA public key). It contains
-		// the pub key for embedding, but doesn't have extra params like key id.
-		publicKey := signingKey
-		publicKey.Key = recipient.publicKey.Key
-		recipient.publicKey = &publicKey
-
-		// This should be impossible, but let's check anyway.
-		if !recipient.publicKey.IsPublic() {
-			return recipientSigInfo{}, errors.New("square/go-jose: public key was unexpectedly not public")
-		}
-	}
-	return recipient, nil
-}
-
-func (ctx *genericSigner) Sign(payload []byte) (*JSONWebSignature, error) {
-	obj := &JSONWebSignature{}
-	obj.payload = payload
-	obj.Signatures = make([]Signature, len(ctx.recipients))
-
-	for i, recipient := range ctx.recipients {
-		protected := map[HeaderKey]interface{}{
-			headerAlgorithm: string(recipient.sigAlg),
-		}
-
-		if recipient.publicKey != nil {
-			// We want to embed the JWK or set the kid header, but not both. Having a protected
-			// header that contains an embedded JWK while also simultaneously containing the kid
-			// header is confusing, and at least in ACME the two are considered to be mutually
-			// exclusive. The fact that both can exist at the same time is a somewhat unfortunate
-			// result of the JOSE spec. We've decided that this library will only include one or
-			// the other to avoid this confusion.
-			//
-			// See https://github.com/square/go-jose/issues/157 for more context.
-			if ctx.embedJWK {
-				protected[headerJWK] = recipient.publicKey
-			} else {
-				protected[headerKeyID] = recipient.publicKey.KeyID
-			}
-		}
-
-		if ctx.nonceSource != nil {
-			nonce, err := ctx.nonceSource.Nonce()
-			if err != nil {
-				return nil, fmt.Errorf("square/go-jose: Error generating nonce: %v", err)
-			}
-			protected[headerNonce] = nonce
-		}
-
-		for k, v := range ctx.extraHeaders {
-			protected[k] = v
-		}
-
-		serializedProtected := mustSerializeJSON(protected)
-
-		input := []byte(fmt.Sprintf("%s.%s",
-			base64.RawURLEncoding.EncodeToString(serializedProtected),
-			base64.RawURLEncoding.EncodeToString(payload)))
-
-		signatureInfo, err := recipient.signer.signPayload(input, recipient.sigAlg)
-		if err != nil {
-			return nil, err
-		}
-
-		signatureInfo.protected = &rawHeader{}
-		for k, v := range protected {
-			b, err := json.Marshal(v)
-			if err != nil {
-				return nil, fmt.Errorf("square/go-jose: Error marshalling item %#v: %v", k, err)
-			}
-			(*signatureInfo.protected)[k] = makeRawMessage(b)
-		}
-		obj.Signatures[i] = signatureInfo
-	}
-
-	return obj, nil
-}
-
-func (ctx *genericSigner) Options() SignerOptions {
-	return SignerOptions{
-		NonceSource:  ctx.nonceSource,
-		EmbedJWK:     ctx.embedJWK,
-		ExtraHeaders: ctx.extraHeaders,
-	}
-}
-
-// Verify validates the signature on the object and returns the payload.
-// This function does not support multi-signature, if you desire multi-sig
-// verification use VerifyMulti instead.
-//
-// Be careful when verifying signatures based on embedded JWKs inside the
-// payload header. You cannot assume that the key received in a payload is
-// trusted.
-func (obj JSONWebSignature) Verify(verificationKey interface{}) ([]byte, error) {
-	verifier, err := newVerifier(verificationKey)
-	if err != nil {
-		return nil, err
-	}
-
-	if len(obj.Signatures) > 1 {
-		return nil, errors.New("square/go-jose: too many signatures in payload; expecting only one")
-	}
-
-	signature := obj.Signatures[0]
-	headers := signature.mergedHeaders()
-	critical, err := headers.getCritical()
-	if err != nil {
-		return nil, err
-	}
-	if len(critical) > 0 {
-		// Unsupported crit header
-		return nil, ErrCryptoFailure
-	}
-
-	input := obj.computeAuthData(&signature)
-	alg := headers.getSignatureAlgorithm()
-	err = verifier.verifyPayload(input, signature.Signature, alg)
-	if err == nil {
-		return obj.payload, nil
-	}
-
-	return nil, ErrCryptoFailure
-}
-
-// VerifyMulti validates (one of the multiple) signatures on the object and
-// returns the index of the signature that was verified, along with the signature
-// object and the payload. We return the signature and index to guarantee that
-// callers are getting the verified value.
-func (obj JSONWebSignature) VerifyMulti(verificationKey interface{}) (int, Signature, []byte, error) {
-	verifier, err := newVerifier(verificationKey)
-	if err != nil {
-		return -1, Signature{}, nil, err
-	}
-
-	for i, signature := range obj.Signatures {
-		headers := signature.mergedHeaders()
-		critical, err := headers.getCritical()
-		if err != nil {
-			continue
-		}
-		if len(critical) > 0 {
-			// Unsupported crit header
-			continue
-		}
-
-		input := obj.computeAuthData(&signature)
-		alg := headers.getSignatureAlgorithm()
-		err = verifier.verifyPayload(input, signature.Signature, alg)
-		if err == nil {
-			return i, signature, obj.payload, nil
-		}
-	}
-
-	return -1, Signature{}, nil, ErrCryptoFailure
-}