1 files changed, 0 insertions, 108 deletions
diff --git a/vendor/golang.org/x/crypto/tea/cipher.go b/vendor/golang.org/x/crypto/tea/cipher.go
deleted file mode 100644
index ce223b2..0000000
--- a/vendor/golang.org/x/crypto/tea/cipher.go
+++ /dev/null
@@ -1,108 +0,0 @@
-// Copyright 2015 The Go Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style
-// license that can be found in the LICENSE file.
-
-// Package tea implements the TEA algorithm, as defined in Needham and
-// Wheeler's 1994 technical report, “TEA, a Tiny Encryption Algorithm”. See
-// http://www.cix.co.uk/~klockstone/tea.pdf for details.
-package tea
-
-import (
-	"crypto/cipher"
-	"encoding/binary"
-	"errors"
-)
-
-const (
-	// BlockSize is the size of a TEA block, in bytes.
-	BlockSize = 8
-
-	// KeySize is the size of a TEA key, in bytes.
-	KeySize = 16
-
-	// delta is the TEA key schedule constant.
-	delta = 0x9e3779b9
-
-	// numRounds is the standard number of rounds in TEA.
-	numRounds = 64
-)
-
-// tea is an instance of the TEA cipher with a particular key.
-type tea struct {
-	key    [16]byte
-	rounds int
-}
-
-// NewCipher returns an instance of the TEA cipher with the standard number of
-// rounds. The key argument must be 16 bytes long.
-func NewCipher(key []byte) (cipher.Block, error) {
-	return NewCipherWithRounds(key, numRounds)
-}
-
-// NewCipherWithRounds returns an instance of the TEA cipher with a given
-// number of rounds, which must be even. The key argument must be 16 bytes
-// long.
-func NewCipherWithRounds(key []byte, rounds int) (cipher.Block, error) {
-	if len(key) != 16 {
-		return nil, errors.New("tea: incorrect key size")
-	}
-
-	if rounds&1 != 0 {
-		return nil, errors.New("tea: odd number of rounds specified")
-	}
-
-	c := &tea{
-		rounds: rounds,
-	}
-	copy(c.key[:], key)
-
-	return c, nil
-}
-
-// BlockSize returns the TEA block size, which is eight bytes. It is necessary
-// to satisfy the Block interface in the package "crypto/cipher".
-func (*tea) BlockSize() int {
-	return BlockSize
-}
-
-// Encrypt encrypts the 8 byte buffer src using the key in t and stores the
-// result in dst. Note that for amounts of data larger than a block, it is not
-// safe to just call Encrypt on successive blocks; instead, use an encryption
-// mode like CBC (see crypto/cipher/cbc.go).
-func (t *tea) Encrypt(dst, src []byte) {
-	e := binary.BigEndian
-	v0, v1 := e.Uint32(src), e.Uint32(src[4:])
-	k0, k1, k2, k3 := e.Uint32(t.key[0:]), e.Uint32(t.key[4:]), e.Uint32(t.key[8:]), e.Uint32(t.key[12:])
-
-	sum := uint32(0)
-	delta := uint32(delta)
-
-	for i := 0; i < t.rounds/2; i++ {
-		sum += delta
-		v0 += ((v1 << 4) + k0) ^ (v1 + sum) ^ ((v1 >> 5) + k1)
-		v1 += ((v0 << 4) + k2) ^ (v0 + sum) ^ ((v0 >> 5) + k3)
-	}
-
-	e.PutUint32(dst, v0)
-	e.PutUint32(dst[4:], v1)
-}
-
-// Decrypt decrypts the 8 byte buffer src using the key in t and stores the
-// result in dst.
-func (t *tea) Decrypt(dst, src []byte) {
-	e := binary.BigEndian
-	v0, v1 := e.Uint32(src), e.Uint32(src[4:])
-	k0, k1, k2, k3 := e.Uint32(t.key[0:]), e.Uint32(t.key[4:]), e.Uint32(t.key[8:]), e.Uint32(t.key[12:])
-
-	delta := uint32(delta)
-	sum := delta * uint32(t.rounds/2) // in general, sum = delta * n
-
-	for i := 0; i < t.rounds/2; i++ {
-		v1 -= ((v0 << 4) + k2) ^ (v0 + sum) ^ ((v0 >> 5) + k3)
-		v0 -= ((v1 << 4) + k0) ^ (v1 + sum) ^ ((v1 >> 5) + k1)
-		sum -= delta
-	}
-
-	e.PutUint32(dst, v0)
-	e.PutUint32(dst[4:], v1)
-}