diff options
Diffstat (limited to 'kube2msb/src/vendor/github.com/coreos/go-oidc/jose/jwk.go')
-rw-r--r-- | kube2msb/src/vendor/github.com/coreos/go-oidc/jose/jwk.go | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/kube2msb/src/vendor/github.com/coreos/go-oidc/jose/jwk.go b/kube2msb/src/vendor/github.com/coreos/go-oidc/jose/jwk.go deleted file mode 100644 index b7a8e23..0000000 --- a/kube2msb/src/vendor/github.com/coreos/go-oidc/jose/jwk.go +++ /dev/null @@ -1,135 +0,0 @@ -package jose - -import ( - "bytes" - "encoding/base64" - "encoding/binary" - "encoding/json" - "math/big" - "strings" -) - -// JSON Web Key -// https://tools.ietf.org/html/draft-ietf-jose-json-web-key-36#page-5 -type JWK struct { - ID string - Type string - Alg string - Use string - Exponent int - Modulus *big.Int - Secret []byte -} - -type jwkJSON struct { - ID string `json:"kid"` - Type string `json:"kty"` - Alg string `json:"alg"` - Use string `json:"use"` - Exponent string `json:"e"` - Modulus string `json:"n"` -} - -func (j *JWK) MarshalJSON() ([]byte, error) { - t := jwkJSON{ - ID: j.ID, - Type: j.Type, - Alg: j.Alg, - Use: j.Use, - Exponent: encodeExponent(j.Exponent), - Modulus: encodeModulus(j.Modulus), - } - - return json.Marshal(&t) -} - -func (j *JWK) UnmarshalJSON(data []byte) error { - var t jwkJSON - err := json.Unmarshal(data, &t) - if err != nil { - return err - } - - e, err := decodeExponent(t.Exponent) - if err != nil { - return err - } - - n, err := decodeModulus(t.Modulus) - if err != nil { - return err - } - - j.ID = t.ID - j.Type = t.Type - j.Alg = t.Alg - j.Use = t.Use - j.Exponent = e - j.Modulus = n - - return nil -} - -type JWKSet struct { - Keys []JWK `json:"keys"` -} - -func decodeExponent(e string) (int, error) { - decE, err := decodeBase64URLPaddingOptional(e) - if err != nil { - return 0, err - } - var eBytes []byte - if len(decE) < 8 { - eBytes = make([]byte, 8-len(decE), 8) - eBytes = append(eBytes, decE...) - } else { - eBytes = decE - } - eReader := bytes.NewReader(eBytes) - var E uint64 - err = binary.Read(eReader, binary.BigEndian, &E) - if err != nil { - return 0, err - } - return int(E), nil -} - -func encodeExponent(e int) string { - b := make([]byte, 8) - binary.BigEndian.PutUint64(b, uint64(e)) - var idx int - for ; idx < 8; idx++ { - if b[idx] != 0x0 { - break - } - } - return base64.URLEncoding.EncodeToString(b[idx:]) -} - -// Turns a URL encoded modulus of a key into a big int. -func decodeModulus(n string) (*big.Int, error) { - decN, err := decodeBase64URLPaddingOptional(n) - if err != nil { - return nil, err - } - N := big.NewInt(0) - N.SetBytes(decN) - return N, nil -} - -func encodeModulus(n *big.Int) string { - return base64.URLEncoding.EncodeToString(n.Bytes()) -} - -// decodeBase64URLPaddingOptional decodes Base64 whether there is padding or not. -// The stdlib version currently doesn't handle this. -// We can get rid of this is if this bug: -// https://github.com/golang/go/issues/4237 -// ever closes. -func decodeBase64URLPaddingOptional(e string) ([]byte, error) { - if m := len(e) % 4; m != 0 { - e += strings.Repeat("=", 4-m) - } - return base64.URLEncoding.DecodeString(e) -} |