From 8db41da676ac8368ef7c2549d56239a5ff5eedde Mon Sep 17 00:00:00 2001 From: Rutger Broekhoff Date: Tue, 2 Jan 2024 18:56:31 +0100 Subject: Delete vendor directory --- vendor/golang.org/x/crypto/blake2b/blake2b.go | 291 -------------------------- 1 file changed, 291 deletions(-) delete mode 100644 vendor/golang.org/x/crypto/blake2b/blake2b.go (limited to 'vendor/golang.org/x/crypto/blake2b/blake2b.go') diff --git a/vendor/golang.org/x/crypto/blake2b/blake2b.go b/vendor/golang.org/x/crypto/blake2b/blake2b.go deleted file mode 100644 index d2e98d4..0000000 --- a/vendor/golang.org/x/crypto/blake2b/blake2b.go +++ /dev/null @@ -1,291 +0,0 @@ -// Copyright 2016 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 blake2b implements the BLAKE2b hash algorithm defined by RFC 7693 -// and the extendable output function (XOF) BLAKE2Xb. -// -// BLAKE2b is optimized for 64-bit platforms—including NEON-enabled ARMs—and -// produces digests of any size between 1 and 64 bytes. -// For a detailed specification of BLAKE2b see https://blake2.net/blake2.pdf -// and for BLAKE2Xb see https://blake2.net/blake2x.pdf -// -// If you aren't sure which function you need, use BLAKE2b (Sum512 or New512). -// If you need a secret-key MAC (message authentication code), use the New512 -// function with a non-nil key. -// -// BLAKE2X is a construction to compute hash values larger than 64 bytes. It -// can produce hash values between 0 and 4 GiB. -package blake2b - -import ( - "encoding/binary" - "errors" - "hash" -) - -const ( - // The blocksize of BLAKE2b in bytes. - BlockSize = 128 - // The hash size of BLAKE2b-512 in bytes. - Size = 64 - // The hash size of BLAKE2b-384 in bytes. - Size384 = 48 - // The hash size of BLAKE2b-256 in bytes. - Size256 = 32 -) - -var ( - useAVX2 bool - useAVX bool - useSSE4 bool -) - -var ( - errKeySize = errors.New("blake2b: invalid key size") - errHashSize = errors.New("blake2b: invalid hash size") -) - -var iv = [8]uint64{ - 0x6a09e667f3bcc908, 0xbb67ae8584caa73b, 0x3c6ef372fe94f82b, 0xa54ff53a5f1d36f1, - 0x510e527fade682d1, 0x9b05688c2b3e6c1f, 0x1f83d9abfb41bd6b, 0x5be0cd19137e2179, -} - -// Sum512 returns the BLAKE2b-512 checksum of the data. -func Sum512(data []byte) [Size]byte { - var sum [Size]byte - checkSum(&sum, Size, data) - return sum -} - -// Sum384 returns the BLAKE2b-384 checksum of the data. -func Sum384(data []byte) [Size384]byte { - var sum [Size]byte - var sum384 [Size384]byte - checkSum(&sum, Size384, data) - copy(sum384[:], sum[:Size384]) - return sum384 -} - -// Sum256 returns the BLAKE2b-256 checksum of the data. -func Sum256(data []byte) [Size256]byte { - var sum [Size]byte - var sum256 [Size256]byte - checkSum(&sum, Size256, data) - copy(sum256[:], sum[:Size256]) - return sum256 -} - -// New512 returns a new hash.Hash computing the BLAKE2b-512 checksum. A non-nil -// key turns the hash into a MAC. The key must be between zero and 64 bytes long. -func New512(key []byte) (hash.Hash, error) { return newDigest(Size, key) } - -// New384 returns a new hash.Hash computing the BLAKE2b-384 checksum. A non-nil -// key turns the hash into a MAC. The key must be between zero and 64 bytes long. -func New384(key []byte) (hash.Hash, error) { return newDigest(Size384, key) } - -// New256 returns a new hash.Hash computing the BLAKE2b-256 checksum. A non-nil -// key turns the hash into a MAC. The key must be between zero and 64 bytes long. -func New256(key []byte) (hash.Hash, error) { return newDigest(Size256, key) } - -// New returns a new hash.Hash computing the BLAKE2b checksum with a custom length. -// A non-nil key turns the hash into a MAC. The key must be between zero and 64 bytes long. -// The hash size can be a value between 1 and 64 but it is highly recommended to use -// values equal or greater than: -// - 32 if BLAKE2b is used as a hash function (The key is zero bytes long). -// - 16 if BLAKE2b is used as a MAC function (The key is at least 16 bytes long). -// When the key is nil, the returned hash.Hash implements BinaryMarshaler -// and BinaryUnmarshaler for state (de)serialization as documented by hash.Hash. -func New(size int, key []byte) (hash.Hash, error) { return newDigest(size, key) } - -func newDigest(hashSize int, key []byte) (*digest, error) { - if hashSize < 1 || hashSize > Size { - return nil, errHashSize - } - if len(key) > Size { - return nil, errKeySize - } - d := &digest{ - size: hashSize, - keyLen: len(key), - } - copy(d.key[:], key) - d.Reset() - return d, nil -} - -func checkSum(sum *[Size]byte, hashSize int, data []byte) { - h := iv - h[0] ^= uint64(hashSize) | (1 << 16) | (1 << 24) - var c [2]uint64 - - if length := len(data); length > BlockSize { - n := length &^ (BlockSize - 1) - if length == n { - n -= BlockSize - } - hashBlocks(&h, &c, 0, data[:n]) - data = data[n:] - } - - var block [BlockSize]byte - offset := copy(block[:], data) - remaining := uint64(BlockSize - offset) - if c[0] < remaining { - c[1]-- - } - c[0] -= remaining - - hashBlocks(&h, &c, 0xFFFFFFFFFFFFFFFF, block[:]) - - for i, v := range h[:(hashSize+7)/8] { - binary.LittleEndian.PutUint64(sum[8*i:], v) - } -} - -type digest struct { - h [8]uint64 - c [2]uint64 - size int - block [BlockSize]byte - offset int - - key [BlockSize]byte - keyLen int -} - -const ( - magic = "b2b" - marshaledSize = len(magic) + 8*8 + 2*8 + 1 + BlockSize + 1 -) - -func (d *digest) MarshalBinary() ([]byte, error) { - if d.keyLen != 0 { - return nil, errors.New("crypto/blake2b: cannot marshal MACs") - } - b := make([]byte, 0, marshaledSize) - b = append(b, magic...) - for i := 0; i < 8; i++ { - b = appendUint64(b, d.h[i]) - } - b = appendUint64(b, d.c[0]) - b = appendUint64(b, d.c[1]) - // Maximum value for size is 64 - b = append(b, byte(d.size)) - b = append(b, d.block[:]...) - b = append(b, byte(d.offset)) - return b, nil -} - -func (d *digest) UnmarshalBinary(b []byte) error { - if len(b) < len(magic) || string(b[:len(magic)]) != magic { - return errors.New("crypto/blake2b: invalid hash state identifier") - } - if len(b) != marshaledSize { - return errors.New("crypto/blake2b: invalid hash state size") - } - b = b[len(magic):] - for i := 0; i < 8; i++ { - b, d.h[i] = consumeUint64(b) - } - b, d.c[0] = consumeUint64(b) - b, d.c[1] = consumeUint64(b) - d.size = int(b[0]) - b = b[1:] - copy(d.block[:], b[:BlockSize]) - b = b[BlockSize:] - d.offset = int(b[0]) - return nil -} - -func (d *digest) BlockSize() int { return BlockSize } - -func (d *digest) Size() int { return d.size } - -func (d *digest) Reset() { - d.h = iv - d.h[0] ^= uint64(d.size) | (uint64(d.keyLen) << 8) | (1 << 16) | (1 << 24) - d.offset, d.c[0], d.c[1] = 0, 0, 0 - if d.keyLen > 0 { - d.block = d.key - d.offset = BlockSize - } -} - -func (d *digest) Write(p []byte) (n int, err error) { - n = len(p) - - if d.offset > 0 { - remaining := BlockSize - d.offset - if n <= remaining { - d.offset += copy(d.block[d.offset:], p) - return - } - copy(d.block[d.offset:], p[:remaining]) - hashBlocks(&d.h, &d.c, 0, d.block[:]) - d.offset = 0 - p = p[remaining:] - } - - if length := len(p); length > BlockSize { - nn := length &^ (BlockSize - 1) - if length == nn { - nn -= BlockSize - } - hashBlocks(&d.h, &d.c, 0, p[:nn]) - p = p[nn:] - } - - if len(p) > 0 { - d.offset += copy(d.block[:], p) - } - - return -} - -func (d *digest) Sum(sum []byte) []byte { - var hash [Size]byte - d.finalize(&hash) - return append(sum, hash[:d.size]...) -} - -func (d *digest) finalize(hash *[Size]byte) { - var block [BlockSize]byte - copy(block[:], d.block[:d.offset]) - remaining := uint64(BlockSize - d.offset) - - c := d.c - if c[0] < remaining { - c[1]-- - } - c[0] -= remaining - - h := d.h - hashBlocks(&h, &c, 0xFFFFFFFFFFFFFFFF, block[:]) - - for i, v := range h { - binary.LittleEndian.PutUint64(hash[8*i:], v) - } -} - -func appendUint64(b []byte, x uint64) []byte { - var a [8]byte - binary.BigEndian.PutUint64(a[:], x) - return append(b, a[:]...) -} - -func appendUint32(b []byte, x uint32) []byte { - var a [4]byte - binary.BigEndian.PutUint32(a[:], x) - return append(b, a[:]...) -} - -func consumeUint64(b []byte) ([]byte, uint64) { - x := binary.BigEndian.Uint64(b) - return b[8:], x -} - -func consumeUint32(b []byte) ([]byte, uint32) { - x := binary.BigEndian.Uint32(b) - return b[4:], x -} -- cgit v1.2.3