Update vendor

6 files changed, 822 insertions, 0 deletions

diff --git a/vendor/golang.org/x/crypto/argon2/argon2.go b/vendor/golang.org/x/crypto/argon2/argon2.go
new file mode 100644
index 00000000..b423feae
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/argon2.go
@@ -0,0 +1,285 @@
+// Copyright 2017 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 argon2 implements the key derivation function Argon2.
+// Argon2 was selected as the winner of the Password Hashing Competition and can
+// be used to derive cryptographic keys from passwords.
+//
+// For a detailed specification of Argon2 see [1].
+//
+// If you aren't sure which function you need, use Argon2id (IDKey) and
+// the parameter recommendations for your scenario.
+//
+//
+// Argon2i
+//
+// Argon2i (implemented by Key) is the side-channel resistant version of Argon2.
+// It uses data-independent memory access, which is preferred for password
+// hashing and password-based key derivation. Argon2i requires more passes over
+// memory than Argon2id to protect from trade-off attacks. The recommended
+// parameters (taken from [2]) for non-interactive operations are time=3 and to
+// use the maximum available memory.
+//
+//
+// Argon2id
+//
+// Argon2id (implemented by IDKey) is a hybrid version of Argon2 combining
+// Argon2i and Argon2d. It uses data-independent memory access for the first
+// half of the first iteration over the memory and data-dependent memory access
+// for the rest. Argon2id is side-channel resistant and provides better brute-
+// force cost savings due to time-memory tradeoffs than Argon2i. The recommended
+// parameters for non-interactive operations (taken from [2]) are time=1 and to
+// use the maximum available memory.
+//
+// [1] https://github.com/P-H-C/phc-winner-argon2/blob/master/argon2-specs.pdf
+// [2] https://tools.ietf.org/html/draft-irtf-cfrg-argon2-03#section-9.3
+package argon2
+
+import (
+	"encoding/binary"
+	"sync"
+
+	"golang.org/x/crypto/blake2b"
+)
+
+// The Argon2 version implemented by this package.
+const Version = 0x13
+
+const (
+	argon2d = iota
+	argon2i
+	argon2id
+)
+
+// Key derives a key from the password, salt, and cost parameters using Argon2i
+// returning a byte slice of length keyLen that can be used as cryptographic
+// key. The CPU cost and parallelism degree must be greater than zero.
+//
+// For example, you can get a derived key for e.g. AES-256 (which needs a
+// 32-byte key) by doing:
+//
+//      key := argon2.Key([]byte("some password"), salt, 3, 32*1024, 4, 32)
+//
+// The draft RFC recommends[2] time=3, and memory=32*1024 is a sensible number.
+// If using that amount of memory (32 MB) is not possible in some contexts then
+// the time parameter can be increased to compensate.
+//
+// The time parameter specifies the number of passes over the memory and the
+// memory parameter specifies the size of the memory in KiB. For example
+// memory=32*1024 sets the memory cost to ~32 MB. The number of threads can be
+// adjusted to the number of available CPUs. The cost parameters should be
+// increased as memory latency and CPU parallelism increases. Remember to get a
+// good random salt.
+func Key(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
+	return deriveKey(argon2i, password, salt, nil, nil, time, memory, threads, keyLen)
+}
+
+// IDKey derives a key from the password, salt, and cost parameters using
+// Argon2id returning a byte slice of length keyLen that can be used as
+// cryptographic key. The CPU cost and parallelism degree must be greater than
+// zero.
+//
+// For example, you can get a derived key for e.g. AES-256 (which needs a
+// 32-byte key) by doing:
+//
+//      key := argon2.IDKey([]byte("some password"), salt, 1, 64*1024, 4, 32)
+//
+// The draft RFC recommends[2] time=1, and memory=64*1024 is a sensible number.
+// If using that amount of memory (64 MB) is not possible in some contexts then
+// the time parameter can be increased to compensate.
+//
+// The time parameter specifies the number of passes over the memory and the
+// memory parameter specifies the size of the memory in KiB. For example
+// memory=64*1024 sets the memory cost to ~64 MB. The number of threads can be
+// adjusted to the numbers of available CPUs. The cost parameters should be
+// increased as memory latency and CPU parallelism increases. Remember to get a
+// good random salt.
+func IDKey(password, salt []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
+	return deriveKey(argon2id, password, salt, nil, nil, time, memory, threads, keyLen)
+}
+
+func deriveKey(mode int, password, salt, secret, data []byte, time, memory uint32, threads uint8, keyLen uint32) []byte {
+	if time < 1 {
+		panic("argon2: number of rounds too small")
+	}
+	if threads < 1 {
+		panic("argon2: parallelism degree too low")
+	}
+	h0 := initHash(password, salt, secret, data, time, memory, uint32(threads), keyLen, mode)
+
+	memory = memory / (syncPoints * uint32(threads)) * (syncPoints * uint32(threads))
+	if memory < 2*syncPoints*uint32(threads) {
+		memory = 2 * syncPoints * uint32(threads)
+	}
+	B := initBlocks(&h0, memory, uint32(threads))
+	processBlocks(B, time, memory, uint32(threads), mode)
+	return extractKey(B, memory, uint32(threads), keyLen)
+}
+
+const (
+	blockLength = 128
+	syncPoints  = 4
+)
+
+type block [blockLength]uint64
+
+func initHash(password, salt, key, data []byte, time, memory, threads, keyLen uint32, mode int) [blake2b.Size + 8]byte {
+	var (
+		h0     [blake2b.Size + 8]byte
+		params [24]byte
+		tmp    [4]byte
+	)
+
+	b2, _ := blake2b.New512(nil)
+	binary.LittleEndian.PutUint32(params[0:4], threads)
+	binary.LittleEndian.PutUint32(params[4:8], keyLen)
+	binary.LittleEndian.PutUint32(params[8:12], memory)
+	binary.LittleEndian.PutUint32(params[12:16], time)
+	binary.LittleEndian.PutUint32(params[16:20], uint32(Version))
+	binary.LittleEndian.PutUint32(params[20:24], uint32(mode))
+	b2.Write(params[:])
+	binary.LittleEndian.PutUint32(tmp[:], uint32(len(password)))
+	b2.Write(tmp[:])
+	b2.Write(password)
+	binary.LittleEndian.PutUint32(tmp[:], uint32(len(salt)))
+	b2.Write(tmp[:])
+	b2.Write(salt)
+	binary.LittleEndian.PutUint32(tmp[:], uint32(len(key)))
+	b2.Write(tmp[:])
+	b2.Write(key)
+	binary.LittleEndian.PutUint32(tmp[:], uint32(len(data)))
+	b2.Write(tmp[:])
+	b2.Write(data)
+	b2.Sum(h0[:0])
+	return h0
+}
+
+func initBlocks(h0 *[blake2b.Size + 8]byte, memory, threads uint32) []block {
+	var block0 [1024]byte
+	B := make([]block, memory)
+	for lane := uint32(0); lane < threads; lane++ {
+		j := lane * (memory / threads)
+		binary.LittleEndian.PutUint32(h0[blake2b.Size+4:], lane)
+
+		binary.LittleEndian.PutUint32(h0[blake2b.Size:], 0)
+		blake2bHash(block0[:], h0[:])
+		for i := range B[j+0] {
+			B[j+0][i] = binary.LittleEndian.Uint64(block0[i*8:])
+		}
+
+		binary.LittleEndian.PutUint32(h0[blake2b.Size:], 1)
+		blake2bHash(block0[:], h0[:])
+		for i := range B[j+1] {
+			B[j+1][i] = binary.LittleEndian.Uint64(block0[i*8:])
+		}
+	}
+	return B
+}
+
+func processBlocks(B []block, time, memory, threads uint32, mode int) {
+	lanes := memory / threads
+	segments := lanes / syncPoints
+
+	processSegment := func(n, slice, lane uint32, wg *sync.WaitGroup) {
+		var addresses, in, zero block
+		if mode == argon2i || (mode == argon2id && n == 0 && slice < syncPoints/2) {
+			in[0] = uint64(n)
+			in[1] = uint64(lane)
+			in[2] = uint64(slice)
+			in[3] = uint64(memory)
+			in[4] = uint64(time)
+			in[5] = uint64(mode)
+		}
+
+		index := uint32(0)
+		if n == 0 && slice == 0 {
+			index = 2 // we have already generated the first two blocks
+			if mode == argon2i || mode == argon2id {
+				in[6]++
+				processBlock(&addresses, &in, &zero)
+				processBlock(&addresses, &addresses, &zero)
+			}
+		}
+
+		offset := lane*lanes + slice*segments + index
+		var random uint64
+		for index < segments {
+			prev := offset - 1
+			if index == 0 && slice == 0 {
+				prev += lanes // last block in lane
+			}
+			if mode == argon2i || (mode == argon2id && n == 0 && slice < syncPoints/2) {
+				if index%blockLength == 0 {
+					in[6]++
+					processBlock(&addresses, &in, &zero)
+					processBlock(&addresses, &addresses, &zero)
+				}
+				random = addresses[index%blockLength]
+			} else {
+				random = B[prev][0]
+			}
+			newOffset := indexAlpha(random, lanes, segments, threads, n, slice, lane, index)
+			processBlockXOR(&B[offset], &B[prev], &B[newOffset])
+			index, offset = index+1, offset+1
+		}
+		wg.Done()
+	}
+
+	for n := uint32(0); n < time; n++ {
+		for slice := uint32(0); slice < syncPoints; slice++ {
+			var wg sync.WaitGroup
+			for lane := uint32(0); lane < threads; lane++ {
+				wg.Add(1)
+				go processSegment(n, slice, lane, &wg)
+			}
+			wg.Wait()
+		}
+	}
+
+}
+
+func extractKey(B []block, memory, threads, keyLen uint32) []byte {
+	lanes := memory / threads
+	for lane := uint32(0); lane < threads-1; lane++ {
+		for i, v := range B[(lane*lanes)+lanes-1] {
+			B[memory-1][i] ^= v
+		}
+	}
+
+	var block [1024]byte
+	for i, v := range B[memory-1] {
+		binary.LittleEndian.PutUint64(block[i*8:], v)
+	}
+	key := make([]byte, keyLen)
+	blake2bHash(key, block[:])
+	return key
+}
+
+func indexAlpha(rand uint64, lanes, segments, threads, n, slice, lane, index uint32) uint32 {
+	refLane := uint32(rand>>32) % threads
+	if n == 0 && slice == 0 {
+		refLane = lane
+	}
+	m, s := 3*segments, ((slice+1)%syncPoints)*segments
+	if lane == refLane {
+		m += index
+	}
+	if n == 0 {
+		m, s = slice*segments, 0
+		if slice == 0 || lane == refLane {
+			m += index
+		}
+	}
+	if index == 0 || lane == refLane {
+		m--
+	}
+	return phi(rand, uint64(m), uint64(s), refLane, lanes)
+}
+
+func phi(rand, m, s uint64, lane, lanes uint32) uint32 {
+	p := rand & 0xFFFFFFFF
+	p = (p * p) >> 32
+	p = (p * m) >> 32
+	return lane*lanes + uint32((s+m-(p+1))%uint64(lanes))
+}
diff --git a/vendor/golang.org/x/crypto/argon2/blake2b.go b/vendor/golang.org/x/crypto/argon2/blake2b.go
new file mode 100644
index 00000000..10f46948
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/blake2b.go
@@ -0,0 +1,53 @@
+// Copyright 2017 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 argon2
+
+import (
+	"encoding/binary"
+	"hash"
+
+	"golang.org/x/crypto/blake2b"
+)
+
+// blake2bHash computes an arbitrary long hash value of in
+// and writes the hash to out.
+func blake2bHash(out []byte, in []byte) {
+	var b2 hash.Hash
+	if n := len(out); n < blake2b.Size {
+		b2, _ = blake2b.New(n, nil)
+	} else {
+		b2, _ = blake2b.New512(nil)
+	}
+
+	var buffer [blake2b.Size]byte
+	binary.LittleEndian.PutUint32(buffer[:4], uint32(len(out)))
+	b2.Write(buffer[:4])
+	b2.Write(in)
+
+	if len(out) <= blake2b.Size {
+		b2.Sum(out[:0])
+		return
+	}
+
+	outLen := len(out)
+	b2.Sum(buffer[:0])
+	b2.Reset()
+	copy(out, buffer[:32])
+	out = out[32:]
+	for len(out) > blake2b.Size {
+		b2.Write(buffer[:])
+		b2.Sum(buffer[:0])
+		copy(out, buffer[:32])
+		out = out[32:]
+		b2.Reset()
+	}
+
+	if outLen%blake2b.Size > 0 { // outLen > 64
+		r := ((outLen + 31) / 32) - 2 // ⌈τ /32⌉-2
+		b2, _ = blake2b.New(outLen-32*r, nil)
+	}
+	b2.Write(buffer[:])
+	b2.Sum(out[:0])
+}
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_amd64.go b/vendor/golang.org/x/crypto/argon2/blamka_amd64.go
new file mode 100644
index 00000000..a014ac92
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/blamka_amd64.go
@@ -0,0 +1,61 @@
+// Copyright 2017 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.
+
+//go:build amd64 && gc && !purego
+// +build amd64,gc,!purego
+
+package argon2
+
+import "golang.org/x/sys/cpu"
+
+func init() {
+	useSSE4 = cpu.X86.HasSSE41
+}
+
+//go:noescape
+func mixBlocksSSE2(out, a, b, c *block)
+
+//go:noescape
+func xorBlocksSSE2(out, a, b, c *block)
+
+//go:noescape
+func blamkaSSE4(b *block)
+
+func processBlockSSE(out, in1, in2 *block, xor bool) {
+	var t block
+	mixBlocksSSE2(&t, in1, in2, &t)
+	if useSSE4 {
+		blamkaSSE4(&t)
+	} else {
+		for i := 0; i < blockLength; i += 16 {
+			blamkaGeneric(
+				&t[i+0], &t[i+1], &t[i+2], &t[i+3],
+				&t[i+4], &t[i+5], &t[i+6], &t[i+7],
+				&t[i+8], &t[i+9], &t[i+10], &t[i+11],
+				&t[i+12], &t[i+13], &t[i+14], &t[i+15],
+			)
+		}
+		for i := 0; i < blockLength/8; i += 2 {
+			blamkaGeneric(
+				&t[i], &t[i+1], &t[16+i], &t[16+i+1],
+				&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
+				&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
+				&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
+			)
+		}
+	}
+	if xor {
+		xorBlocksSSE2(out, in1, in2, &t)
+	} else {
+		mixBlocksSSE2(out, in1, in2, &t)
+	}
+}
+
+func processBlock(out, in1, in2 *block) {
+	processBlockSSE(out, in1, in2, false)
+}
+
+func processBlockXOR(out, in1, in2 *block) {
+	processBlockSSE(out, in1, in2, true)
+}
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_amd64.s b/vendor/golang.org/x/crypto/argon2/blamka_amd64.s
new file mode 100644
index 00000000..b2cc0515
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/blamka_amd64.s
@@ -0,0 +1,244 @@
+// Copyright 2017 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.
+
+//go:build amd64 && gc && !purego
+// +build amd64,gc,!purego
+
+#include "textflag.h"
+
+DATA ·c40<>+0x00(SB)/8, $0x0201000706050403
+DATA ·c40<>+0x08(SB)/8, $0x0a09080f0e0d0c0b
+GLOBL ·c40<>(SB), (NOPTR+RODATA), $16
+
+DATA ·c48<>+0x00(SB)/8, $0x0100070605040302
+DATA ·c48<>+0x08(SB)/8, $0x09080f0e0d0c0b0a
+GLOBL ·c48<>(SB), (NOPTR+RODATA), $16
+
+#define SHUFFLE(v2, v3, v4, v5, v6, v7, t1, t2) \
+	MOVO       v4, t1; \
+	MOVO       v5, v4; \
+	MOVO       t1, v5; \
+	MOVO       v6, t1; \
+	PUNPCKLQDQ v6, t2; \
+	PUNPCKHQDQ v7, v6; \
+	PUNPCKHQDQ t2, v6; \
+	PUNPCKLQDQ v7, t2; \
+	MOVO       t1, v7; \
+	MOVO       v2, t1; \
+	PUNPCKHQDQ t2, v7; \
+	PUNPCKLQDQ v3, t2; \
+	PUNPCKHQDQ t2, v2; \
+	PUNPCKLQDQ t1, t2; \
+	PUNPCKHQDQ t2, v3
+
+#define SHUFFLE_INV(v2, v3, v4, v5, v6, v7, t1, t2) \
+	MOVO       v4, t1; \
+	MOVO       v5, v4; \
+	MOVO       t1, v5; \
+	MOVO       v2, t1; \
+	PUNPCKLQDQ v2, t2; \
+	PUNPCKHQDQ v3, v2; \
+	PUNPCKHQDQ t2, v2; \
+	PUNPCKLQDQ v3, t2; \
+	MOVO       t1, v3; \
+	MOVO       v6, t1; \
+	PUNPCKHQDQ t2, v3; \
+	PUNPCKLQDQ v7, t2; \
+	PUNPCKHQDQ t2, v6; \
+	PUNPCKLQDQ t1, t2; \
+	PUNPCKHQDQ t2, v7
+
+#define HALF_ROUND(v0, v1, v2, v3, v4, v5, v6, v7, t0, c40, c48) \
+	MOVO    v0, t0;        \
+	PMULULQ v2, t0;        \
+	PADDQ   v2, v0;        \
+	PADDQ   t0, v0;        \
+	PADDQ   t0, v0;        \
+	PXOR    v0, v6;        \
+	PSHUFD  $0xB1, v6, v6; \
+	MOVO    v4, t0;        \
+	PMULULQ v6, t0;        \
+	PADDQ   v6, v4;        \
+	PADDQ   t0, v4;        \
+	PADDQ   t0, v4;        \
+	PXOR    v4, v2;        \
+	PSHUFB  c40, v2;       \
+	MOVO    v0, t0;        \
+	PMULULQ v2, t0;        \
+	PADDQ   v2, v0;        \
+	PADDQ   t0, v0;        \
+	PADDQ   t0, v0;        \
+	PXOR    v0, v6;        \
+	PSHUFB  c48, v6;       \
+	MOVO    v4, t0;        \
+	PMULULQ v6, t0;        \
+	PADDQ   v6, v4;        \
+	PADDQ   t0, v4;        \
+	PADDQ   t0, v4;        \
+	PXOR    v4, v2;        \
+	MOVO    v2, t0;        \
+	PADDQ   v2, t0;        \
+	PSRLQ   $63, v2;       \
+	PXOR    t0, v2;        \
+	MOVO    v1, t0;        \
+	PMULULQ v3, t0;        \
+	PADDQ   v3, v1;        \
+	PADDQ   t0, v1;        \
+	PADDQ   t0, v1;        \
+	PXOR    v1, v7;        \
+	PSHUFD  $0xB1, v7, v7; \
+	MOVO    v5, t0;        \
+	PMULULQ v7, t0;        \
+	PADDQ   v7, v5;        \
+	PADDQ   t0, v5;        \
+	PADDQ   t0, v5;        \
+	PXOR    v5, v3;        \
+	PSHUFB  c40, v3;       \
+	MOVO    v1, t0;        \
+	PMULULQ v3, t0;        \
+	PADDQ   v3, v1;        \
+	PADDQ   t0, v1;        \
+	PADDQ   t0, v1;        \
+	PXOR    v1, v7;        \
+	PSHUFB  c48, v7;       \
+	MOVO    v5, t0;        \
+	PMULULQ v7, t0;        \
+	PADDQ   v7, v5;        \
+	PADDQ   t0, v5;        \
+	PADDQ   t0, v5;        \
+	PXOR    v5, v3;        \
+	MOVO    v3, t0;        \
+	PADDQ   v3, t0;        \
+	PSRLQ   $63, v3;       \
+	PXOR    t0, v3
+
+#define LOAD_MSG_0(block, off) \
+	MOVOU 8*(off+0)(block), X0;  \
+	MOVOU 8*(off+2)(block), X1;  \
+	MOVOU 8*(off+4)(block), X2;  \
+	MOVOU 8*(off+6)(block), X3;  \
+	MOVOU 8*(off+8)(block), X4;  \
+	MOVOU 8*(off+10)(block), X5; \
+	MOVOU 8*(off+12)(block), X6; \
+	MOVOU 8*(off+14)(block), X7
+
+#define STORE_MSG_0(block, off) \
+	MOVOU X0, 8*(off+0)(block);  \
+	MOVOU X1, 8*(off+2)(block);  \
+	MOVOU X2, 8*(off+4)(block);  \
+	MOVOU X3, 8*(off+6)(block);  \
+	MOVOU X4, 8*(off+8)(block);  \
+	MOVOU X5, 8*(off+10)(block); \
+	MOVOU X6, 8*(off+12)(block); \
+	MOVOU X7, 8*(off+14)(block)
+
+#define LOAD_MSG_1(block, off) \
+	MOVOU 8*off+0*8(block), X0;  \
+	MOVOU 8*off+16*8(block), X1; \
+	MOVOU 8*off+32*8(block), X2; \
+	MOVOU 8*off+48*8(block), X3; \
+	MOVOU 8*off+64*8(block), X4; \
+	MOVOU 8*off+80*8(block), X5; \
+	MOVOU 8*off+96*8(block), X6; \
+	MOVOU 8*off+112*8(block), X7
+
+#define STORE_MSG_1(block, off) \
+	MOVOU X0, 8*off+0*8(block);  \
+	MOVOU X1, 8*off+16*8(block); \
+	MOVOU X2, 8*off+32*8(block); \
+	MOVOU X3, 8*off+48*8(block); \
+	MOVOU X4, 8*off+64*8(block); \
+	MOVOU X5, 8*off+80*8(block); \
+	MOVOU X6, 8*off+96*8(block); \
+	MOVOU X7, 8*off+112*8(block)
+
+#define BLAMKA_ROUND_0(block, off, t0, t1, c40, c48) \
+	LOAD_MSG_0(block, off);                                   \
+	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
+	SHUFFLE(X2, X3, X4, X5, X6, X7, t0, t1);                  \
+	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
+	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, t0, t1);              \
+	STORE_MSG_0(block, off)
+
+#define BLAMKA_ROUND_1(block, off, t0, t1, c40, c48) \
+	LOAD_MSG_1(block, off);                                   \
+	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
+	SHUFFLE(X2, X3, X4, X5, X6, X7, t0, t1);                  \
+	HALF_ROUND(X0, X1, X2, X3, X4, X5, X6, X7, t0, c40, c48); \
+	SHUFFLE_INV(X2, X3, X4, X5, X6, X7, t0, t1);              \
+	STORE_MSG_1(block, off)
+
+// func blamkaSSE4(b *block)
+TEXT ·blamkaSSE4(SB), 4, $0-8
+	MOVQ b+0(FP), AX
+
+	MOVOU ·c40<>(SB), X10
+	MOVOU ·c48<>(SB), X11
+
+	BLAMKA_ROUND_0(AX, 0, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 16, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 32, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 48, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 64, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 80, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 96, X8, X9, X10, X11)
+	BLAMKA_ROUND_0(AX, 112, X8, X9, X10, X11)
+
+	BLAMKA_ROUND_1(AX, 0, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 2, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 4, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 6, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 8, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 10, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 12, X8, X9, X10, X11)
+	BLAMKA_ROUND_1(AX, 14, X8, X9, X10, X11)
+	RET
+
+// func mixBlocksSSE2(out, a, b, c *block)
+TEXT ·mixBlocksSSE2(SB), 4, $0-32
+	MOVQ out+0(FP), DX
+	MOVQ a+8(FP), AX
+	MOVQ b+16(FP), BX
+	MOVQ a+24(FP), CX
+	MOVQ $128, BP
+
+loop:
+	MOVOU 0(AX), X0
+	MOVOU 0(BX), X1
+	MOVOU 0(CX), X2
+	PXOR  X1, X0
+	PXOR  X2, X0
+	MOVOU X0, 0(DX)
+	ADDQ  $16, AX
+	ADDQ  $16, BX
+	ADDQ  $16, CX
+	ADDQ  $16, DX
+	SUBQ  $2, BP
+	JA    loop
+	RET
+
+// func xorBlocksSSE2(out, a, b, c *block)
+TEXT ·xorBlocksSSE2(SB), 4, $0-32
+	MOVQ out+0(FP), DX
+	MOVQ a+8(FP), AX
+	MOVQ b+16(FP), BX
+	MOVQ a+24(FP), CX
+	MOVQ $128, BP
+
+loop:
+	MOVOU 0(AX), X0
+	MOVOU 0(BX), X1
+	MOVOU 0(CX), X2
+	MOVOU 0(DX), X3
+	PXOR  X1, X0
+	PXOR  X2, X0
+	PXOR  X3, X0
+	MOVOU X0, 0(DX)
+	ADDQ  $16, AX
+	ADDQ  $16, BX
+	ADDQ  $16, CX
+	ADDQ  $16, DX
+	SUBQ  $2, BP
+	JA    loop
+	RET
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_generic.go b/vendor/golang.org/x/crypto/argon2/blamka_generic.go
new file mode 100644
index 00000000..a481b224
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/blamka_generic.go
@@ -0,0 +1,163 @@
+// Copyright 2017 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 argon2
+
+var useSSE4 bool
+
+func processBlockGeneric(out, in1, in2 *block, xor bool) {
+	var t block
+	for i := range t {
+		t[i] = in1[i] ^ in2[i]
+	}
+	for i := 0; i < blockLength; i += 16 {
+		blamkaGeneric(
+			&t[i+0], &t[i+1], &t[i+2], &t[i+3],
+			&t[i+4], &t[i+5], &t[i+6], &t[i+7],
+			&t[i+8], &t[i+9], &t[i+10], &t[i+11],
+			&t[i+12], &t[i+13], &t[i+14], &t[i+15],
+		)
+	}
+	for i := 0; i < blockLength/8; i += 2 {
+		blamkaGeneric(
+			&t[i], &t[i+1], &t[16+i], &t[16+i+1],
+			&t[32+i], &t[32+i+1], &t[48+i], &t[48+i+1],
+			&t[64+i], &t[64+i+1], &t[80+i], &t[80+i+1],
+			&t[96+i], &t[96+i+1], &t[112+i], &t[112+i+1],
+		)
+	}
+	if xor {
+		for i := range t {
+			out[i] ^= in1[i] ^ in2[i] ^ t[i]
+		}
+	} else {
+		for i := range t {
+			out[i] = in1[i] ^ in2[i] ^ t[i]
+		}
+	}
+}
+
+func blamkaGeneric(t00, t01, t02, t03, t04, t05, t06, t07, t08, t09, t10, t11, t12, t13, t14, t15 *uint64) {
+	v00, v01, v02, v03 := *t00, *t01, *t02, *t03
+	v04, v05, v06, v07 := *t04, *t05, *t06, *t07
+	v08, v09, v10, v11 := *t08, *t09, *t10, *t11
+	v12, v13, v14, v15 := *t12, *t13, *t14, *t15
+
+	v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
+	v12 ^= v00
+	v12 = v12>>32 | v12<<32
+	v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
+	v04 ^= v08
+	v04 = v04>>24 | v04<<40
+
+	v00 += v04 + 2*uint64(uint32(v00))*uint64(uint32(v04))
+	v12 ^= v00
+	v12 = v12>>16 | v12<<48
+	v08 += v12 + 2*uint64(uint32(v08))*uint64(uint32(v12))
+	v04 ^= v08
+	v04 = v04>>63 | v04<<1
+
+	v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
+	v13 ^= v01
+	v13 = v13>>32 | v13<<32
+	v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
+	v05 ^= v09
+	v05 = v05>>24 | v05<<40
+
+	v01 += v05 + 2*uint64(uint32(v01))*uint64(uint32(v05))
+	v13 ^= v01
+	v13 = v13>>16 | v13<<48
+	v09 += v13 + 2*uint64(uint32(v09))*uint64(uint32(v13))
+	v05 ^= v09
+	v05 = v05>>63 | v05<<1
+
+	v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
+	v14 ^= v02
+	v14 = v14>>32 | v14<<32
+	v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
+	v06 ^= v10
+	v06 = v06>>24 | v06<<40
+
+	v02 += v06 + 2*uint64(uint32(v02))*uint64(uint32(v06))
+	v14 ^= v02
+	v14 = v14>>16 | v14<<48
+	v10 += v14 + 2*uint64(uint32(v10))*uint64(uint32(v14))
+	v06 ^= v10
+	v06 = v06>>63 | v06<<1
+
+	v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
+	v15 ^= v03
+	v15 = v15>>32 | v15<<32
+	v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
+	v07 ^= v11
+	v07 = v07>>24 | v07<<40
+
+	v03 += v07 + 2*uint64(uint32(v03))*uint64(uint32(v07))
+	v15 ^= v03
+	v15 = v15>>16 | v15<<48
+	v11 += v15 + 2*uint64(uint32(v11))*uint64(uint32(v15))
+	v07 ^= v11
+	v07 = v07>>63 | v07<<1
+
+	v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
+	v15 ^= v00
+	v15 = v15>>32 | v15<<32
+	v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
+	v05 ^= v10
+	v05 = v05>>24 | v05<<40
+
+	v00 += v05 + 2*uint64(uint32(v00))*uint64(uint32(v05))
+	v15 ^= v00
+	v15 = v15>>16 | v15<<48
+	v10 += v15 + 2*uint64(uint32(v10))*uint64(uint32(v15))
+	v05 ^= v10
+	v05 = v05>>63 | v05<<1
+
+	v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
+	v12 ^= v01
+	v12 = v12>>32 | v12<<32
+	v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
+	v06 ^= v11
+	v06 = v06>>24 | v06<<40
+
+	v01 += v06 + 2*uint64(uint32(v01))*uint64(uint32(v06))
+	v12 ^= v01
+	v12 = v12>>16 | v12<<48
+	v11 += v12 + 2*uint64(uint32(v11))*uint64(uint32(v12))
+	v06 ^= v11
+	v06 = v06>>63 | v06<<1
+
+	v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
+	v13 ^= v02
+	v13 = v13>>32 | v13<<32
+	v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
+	v07 ^= v08
+	v07 = v07>>24 | v07<<40
+
+	v02 += v07 + 2*uint64(uint32(v02))*uint64(uint32(v07))
+	v13 ^= v02
+	v13 = v13>>16 | v13<<48
+	v08 += v13 + 2*uint64(uint32(v08))*uint64(uint32(v13))
+	v07 ^= v08
+	v07 = v07>>63 | v07<<1
+
+	v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
+	v14 ^= v03
+	v14 = v14>>32 | v14<<32
+	v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
+	v04 ^= v09
+	v04 = v04>>24 | v04<<40
+
+	v03 += v04 + 2*uint64(uint32(v03))*uint64(uint32(v04))
+	v14 ^= v03
+	v14 = v14>>16 | v14<<48
+	v09 += v14 + 2*uint64(uint32(v09))*uint64(uint32(v14))
+	v04 ^= v09
+	v04 = v04>>63 | v04<<1
+
+	*t00, *t01, *t02, *t03 = v00, v01, v02, v03
+	*t04, *t05, *t06, *t07 = v04, v05, v06, v07
+	*t08, *t09, *t10, *t11 = v08, v09, v10, v11
+	*t12, *t13, *t14, *t15 = v12, v13, v14, v15
+}
diff --git a/vendor/golang.org/x/crypto/argon2/blamka_ref.go b/vendor/golang.org/x/crypto/argon2/blamka_ref.go
new file mode 100644
index 00000000..167c59d2
--- /dev/null
+++ b/vendor/golang.org/x/crypto/argon2/blamka_ref.go
@@ -0,0 +1,16 @@
+// Copyright 2017 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.
+
+//go:build !amd64 || purego || !gc
+// +build !amd64 purego !gc
+
+package argon2
+
+func processBlock(out, in1, in2 *block) {
+	processBlockGeneric(out, in1, in2, false)
+}
+
+func processBlockXOR(out, in1, in2 *block) {
+	processBlockGeneric(out, in1, in2, true)
+}