1 files changed, 0 insertions, 75 deletions
diff --git a/vendor/gopkg.in/square/go-jose.v1/cipher/concat_kdf.go b/vendor/gopkg.in/square/go-jose.v1/cipher/concat_kdf.go
deleted file mode 100644
index f62c3bdba..000000000
--- a/vendor/gopkg.in/square/go-jose.v1/cipher/concat_kdf.go
+++ /dev/null
@@ -1,75 +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"
-	"encoding/binary"
-	"hash"
-	"io"
-)
-
-type concatKDF struct {
-	z, info []byte
-	i       uint32
-	cache   []byte
-	hasher  hash.Hash
-}
-
-// NewConcatKDF builds a KDF reader based on the given inputs.
-func NewConcatKDF(hash crypto.Hash, z, algID, ptyUInfo, ptyVInfo, supPubInfo, supPrivInfo []byte) io.Reader {
-	buffer := make([]byte, uint64(len(algID))+uint64(len(ptyUInfo))+uint64(len(ptyVInfo))+uint64(len(supPubInfo))+uint64(len(supPrivInfo)))
-	n := 0
-	n += copy(buffer, algID)
-	n += copy(buffer[n:], ptyUInfo)
-	n += copy(buffer[n:], ptyVInfo)
-	n += copy(buffer[n:], supPubInfo)
-	copy(buffer[n:], supPrivInfo)
-
-	hasher := hash.New()
-
-	return &concatKDF{
-		z:      z,
-		info:   buffer,
-		hasher: hasher,
-		cache:  []byte{},
-		i:      1,
-	}
-}
-
-func (ctx *concatKDF) Read(out []byte) (int, error) {
-	copied := copy(out, ctx.cache)
-	ctx.cache = ctx.cache[copied:]
-
-	for copied < len(out) {
-		ctx.hasher.Reset()
-
-		// Write on a hash.Hash never fails
-		_ = binary.Write(ctx.hasher, binary.BigEndian, ctx.i)
-		_, _ = ctx.hasher.Write(ctx.z)
-		_, _ = ctx.hasher.Write(ctx.info)
-
-		hash := ctx.hasher.Sum(nil)
-		chunkCopied := copy(out[copied:], hash)
-		copied += chunkCopied
-		ctx.cache = hash[chunkCopied:]
-
-		ctx.i++
-	}
-
-	return copied, nil
-}