aboutsummaryrefslogtreecommitdiffhomepage
path: root/vendor/golang.org/x/crypto/sha3/shake.go
diff options
context:
space:
mode:
Diffstat (limited to 'vendor/golang.org/x/crypto/sha3/shake.go')
-rw-r--r--vendor/golang.org/x/crypto/sha3/shake.go70
1 files changed, 0 insertions, 70 deletions
diff --git a/vendor/golang.org/x/crypto/sha3/shake.go b/vendor/golang.org/x/crypto/sha3/shake.go
deleted file mode 100644
index 97c9b06..0000000
--- a/vendor/golang.org/x/crypto/sha3/shake.go
+++ /dev/null
@@ -1,70 +0,0 @@
-// Copyright 2014 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 sha3
-
-// This file defines the ShakeHash interface, and provides
-// functions for creating SHAKE instances, as well as utility
-// functions for hashing bytes to arbitrary-length output.
-
-import (
- "io"
-)
-
-// ShakeHash defines the interface to hash functions that
-// support arbitrary-length output.
-type ShakeHash interface {
- // Write absorbs more data into the hash's state. It panics if input is
- // written to it after output has been read from it.
- io.Writer
-
- // Read reads more output from the hash; reading affects the hash's
- // state. (ShakeHash.Read is thus very different from Hash.Sum)
- // It never returns an error.
- io.Reader
-
- // Clone returns a copy of the ShakeHash in its current state.
- Clone() ShakeHash
-
- // Reset resets the ShakeHash to its initial state.
- Reset()
-}
-
-func (d *state) Clone() ShakeHash {
- return d.clone()
-}
-
-// NewShake128 creates a new SHAKE128 variable-output-length ShakeHash.
-// Its generic security strength is 128 bits against all attacks if at
-// least 32 bytes of its output are used.
-func NewShake128() ShakeHash {
- if h := newShake128Asm(); h != nil {
- return h
- }
- return &state{rate: 168, dsbyte: 0x1f}
-}
-
-// NewShake256 creates a new SHAKE256 variable-output-length ShakeHash.
-// Its generic security strength is 256 bits against all attacks if
-// at least 64 bytes of its output are used.
-func NewShake256() ShakeHash {
- if h := newShake256Asm(); h != nil {
- return h
- }
- return &state{rate: 136, dsbyte: 0x1f}
-}
-
-// ShakeSum128 writes an arbitrary-length digest of data into hash.
-func ShakeSum128(hash, data []byte) {
- h := NewShake128()
- h.Write(data)
- h.Read(hash)
-}
-
-// ShakeSum256 writes an arbitrary-length digest of data into hash.
-func ShakeSum256(hash, data []byte) {
- h := NewShake256()
- h.Write(data)
- h.Read(hash)
-}