1 files changed, 0 insertions, 109 deletions
diff --git a/vendor/github.com/rsc/letsencrypt/vendor/gopkg.in/square/go-jose.v1/cipher/key_wrap.go b/vendor/github.com/rsc/letsencrypt/vendor/gopkg.in/square/go-jose.v1/cipher/key_wrap.go
deleted file mode 100644
index 1d36d5015..000000000
--- a/vendor/github.com/rsc/letsencrypt/vendor/gopkg.in/square/go-jose.v1/cipher/key_wrap.go
+++ /dev/null
@@ -1,109 +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 josecipher
-
-import (
-	"crypto/cipher"
-	"crypto/subtle"
-	"encoding/binary"
-	"errors"
-)
-
-var defaultIV = []byte{0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6, 0xA6}
-
-// KeyWrap implements NIST key wrapping; it wraps a content encryption key (cek) with the given block cipher.
-func KeyWrap(block cipher.Block, cek []byte) ([]byte, error) {
-	if len(cek)%8 != 0 {
-		return nil, errors.New("square/go-jose: key wrap input must be 8 byte blocks")
-	}
-
-	n := len(cek) / 8
-	r := make([][]byte, n)
-
-	for i := range r {
-		r[i] = make([]byte, 8)
-		copy(r[i], cek[i*8:])
-	}
-
-	buffer := make([]byte, 16)
-	tBytes := make([]byte, 8)
-	copy(buffer, defaultIV)
-
-	for t := 0; t < 6*n; t++ {
-		copy(buffer[8:], r[t%n])
-
-		block.Encrypt(buffer, buffer)
-
-		binary.BigEndian.PutUint64(tBytes, uint64(t+1))
-
-		for i := 0; i < 8; i++ {
-			buffer[i] = buffer[i] ^ tBytes[i]
-		}
-		copy(r[t%n], buffer[8:])
-	}
-
-	out := make([]byte, (n+1)*8)
-	copy(out, buffer[:8])
-	for i := range r {
-		copy(out[(i+1)*8:], r[i])
-	}
-
-	return out, nil
-}
-
-// KeyUnwrap implements NIST key unwrapping; it unwraps a content encryption key (cek) with the given block cipher.
-func KeyUnwrap(block cipher.Block, ciphertext []byte) ([]byte, error) {
-	if len(ciphertext)%8 != 0 {
-		return nil, errors.New("square/go-jose: key wrap input must be 8 byte blocks")
-	}
-
-	n := (len(ciphertext) / 8) - 1
-	r := make([][]byte, n)
-
-	for i := range r {
-		r[i] = make([]byte, 8)
-		copy(r[i], ciphertext[(i+1)*8:])
-	}
-
-	buffer := make([]byte, 16)
-	tBytes := make([]byte, 8)
-	copy(buffer[:8], ciphertext[:8])
-
-	for t := 6*n - 1; t >= 0; t-- {
-		binary.BigEndian.PutUint64(tBytes, uint64(t+1))
-
-		for i := 0; i < 8; i++ {
-			buffer[i] = buffer[i] ^ tBytes[i]
-		}
-		copy(buffer[8:], r[t%n])
-
-		block.Decrypt(buffer, buffer)
-
-		copy(r[t%n], buffer[8:])
-	}
-
-	if subtle.ConstantTimeCompare(buffer[:8], defaultIV) == 0 {
-		return nil, errors.New("square/go-jose: failed to unwrap key")
-	}
-
-	out := make([]byte, n*8)
-	for i := range r {
-		copy(out[i*8:], r[i])
-	}
-
-	return out, nil
-}