switch to Go modules

44 files changed, 1205 insertions, 398 deletions

diff --git a/vendor/golang.org/x/crypto/cast5/cast5.go b/vendor/golang.org/x/crypto/cast5/cast5.go
index 0b4af37bd..ddcbeb6f2 100644
--- a/vendor/golang.org/x/crypto/cast5/cast5.go
+++ b/vendor/golang.org/x/crypto/cast5/cast5.go
@@ -2,8 +2,15 @@
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.
 
-// Package cast5 implements CAST5, as defined in RFC 2144. CAST5 is a common
-// OpenPGP cipher.
+// Package cast5 implements CAST5, as defined in RFC 2144.
+//
+// CAST5 is a legacy cipher and its short block size makes it vulnerable to
+// birthday bound attacks (see https://sweet32.info). It should only be used
+// where compatibility with legacy systems, not security, is the goal.
+//
+// Deprecated: any new system should use AES (from crypto/aes, if necessary in
+// an AEAD mode like crypto/cipher.NewGCM) or XChaCha20-Poly1305 (from
+// golang.org/x/crypto/chacha20poly1305).
 package cast5 // import "golang.org/x/crypto/cast5"
 
 import "errors"
diff --git a/vendor/golang.org/x/crypto/curve25519/curve25519.go b/vendor/golang.org/x/crypto/curve25519/curve25519.go
index cb8fbc57b..75f24babb 100644
--- a/vendor/golang.org/x/crypto/curve25519/curve25519.go
+++ b/vendor/golang.org/x/crypto/curve25519/curve25519.go
@@ -86,7 +86,7 @@ func feFromBytes(dst *fieldElement, src *[32]byte) {
 	h6 := load3(src[20:]) << 7
 	h7 := load3(src[23:]) << 5
 	h8 := load3(src[26:]) << 4
-	h9 := load3(src[29:]) << 2
+	h9 := (load3(src[29:]) & 0x7fffff) << 2
 
 	var carry [10]int64
 	carry[9] = (h9 + 1<<24) >> 25
diff --git a/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s b/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
index 9e9040b25..e0ac30c70 100644
--- a/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
+++ b/vendor/golang.org/x/crypto/curve25519/ladderstep_amd64.s
@@ -121,18 +121,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -236,18 +236,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -441,18 +441,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -591,18 +591,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -731,18 +731,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -846,18 +846,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -996,18 +996,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -1146,18 +1146,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
@@ -1332,18 +1332,18 @@ TEXT ·ladderstep(SB),0,$296-8
 	ADDQ AX,R12
 	ADCQ DX,R13
 	MOVQ $REDMASK51,DX
-	SHLQ $13,CX:SI
+	SHLQ $13,SI,CX
 	ANDQ DX,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ DX,R8
 	ADDQ CX,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ DX,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ DX,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ DX,R14
 	ADDQ R13,R14
 	IMUL3Q $19,R15,CX
diff --git a/vendor/golang.org/x/crypto/curve25519/mul_amd64.s b/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
index 5ce80a2e5..1f76d1a3f 100644
--- a/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
+++ b/vendor/golang.org/x/crypto/curve25519/mul_amd64.s
@@ -124,18 +124,18 @@ TEXT ·mul(SB),0,$16-24
 	ADDQ AX,R14
 	ADCQ DX,R15
 	MOVQ $REDMASK51,SI
-	SHLQ $13,R9:R8
+	SHLQ $13,R8,R9
 	ANDQ SI,R8
-	SHLQ $13,R11:R10
+	SHLQ $13,R10,R11
 	ANDQ SI,R10
 	ADDQ R9,R10
-	SHLQ $13,R13:R12
+	SHLQ $13,R12,R13
 	ANDQ SI,R12
 	ADDQ R11,R12
-	SHLQ $13,R15:R14
+	SHLQ $13,R14,R15
 	ANDQ SI,R14
 	ADDQ R13,R14
-	SHLQ $13,BP:BX
+	SHLQ $13,BX,BP
 	ANDQ SI,BX
 	ADDQ R15,BX
 	IMUL3Q $19,BP,DX
diff --git a/vendor/golang.org/x/crypto/curve25519/square_amd64.s b/vendor/golang.org/x/crypto/curve25519/square_amd64.s
index 12f73734f..07511a45a 100644
--- a/vendor/golang.org/x/crypto/curve25519/square_amd64.s
+++ b/vendor/golang.org/x/crypto/curve25519/square_amd64.s
@@ -87,18 +87,18 @@ TEXT ·square(SB),7,$0-16
 	ADDQ AX,R13
 	ADCQ DX,R14
 	MOVQ $REDMASK51,SI
-	SHLQ $13,R8:CX
+	SHLQ $13,CX,R8
 	ANDQ SI,CX
-	SHLQ $13,R10:R9
+	SHLQ $13,R9,R10
 	ANDQ SI,R9
 	ADDQ R8,R9
-	SHLQ $13,R12:R11
+	SHLQ $13,R11,R12
 	ANDQ SI,R11
 	ADDQ R10,R11
-	SHLQ $13,R14:R13
+	SHLQ $13,R13,R14
 	ANDQ SI,R13
 	ADDQ R12,R13
-	SHLQ $13,BX:R15
+	SHLQ $13,R15,BX
 	ANDQ SI,R15
 	ADDQ R14,R15
 	IMUL3Q $19,BX,DX
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/asm_arm64.s b/vendor/golang.org/x/crypto/internal/chacha20/asm_arm64.s
new file mode 100644
index 000000000..b3a16ef75
--- /dev/null
+++ b/vendor/golang.org/x/crypto/internal/chacha20/asm_arm64.s
@@ -0,0 +1,308 @@
+// Copyright 2018 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.
+
+// +build go1.11
+// +build !gccgo,!appengine
+
+#include "textflag.h"
+
+#define NUM_ROUNDS 10
+
+// func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
+TEXT ·xorKeyStreamVX(SB), NOSPLIT, $0
+	MOVD	dst+0(FP), R1
+	MOVD	src+24(FP), R2
+	MOVD	src_len+32(FP), R3
+	MOVD	key+48(FP), R4
+	MOVD	nonce+56(FP), R6
+	MOVD	counter+64(FP), R7
+
+	MOVD	$·constants(SB), R10
+	MOVD	$·incRotMatrix(SB), R11
+
+	MOVW	(R7), R20
+
+	AND	$~255, R3, R13
+	ADD	R2, R13, R12 // R12 for block end
+	AND	$255, R3, R13
+loop:
+	MOVD	$NUM_ROUNDS, R21
+	VLD1	(R11), [V30.S4, V31.S4]
+
+	// load contants
+	// VLD4R (R10), [V0.S4, V1.S4, V2.S4, V3.S4]
+	WORD	$0x4D60E940
+
+	// load keys
+	// VLD4R 16(R4), [V4.S4, V5.S4, V6.S4, V7.S4]
+	WORD	$0x4DFFE884
+	// VLD4R 16(R4), [V8.S4, V9.S4, V10.S4, V11.S4]
+	WORD	$0x4DFFE888
+	SUB	$32, R4
+
+	// load counter + nonce
+	// VLD1R (R7), [V12.S4]
+	WORD	$0x4D40C8EC
+
+	// VLD3R (R6), [V13.S4, V14.S4, V15.S4]
+	WORD	$0x4D40E8CD
+
+	// update counter
+	VADD	V30.S4, V12.S4, V12.S4
+
+chacha:
+	// V0..V3 += V4..V7
+	// V12..V15 <<<= ((V12..V15 XOR V0..V3), 16)
+	VADD	V0.S4, V4.S4, V0.S4
+	VADD	V1.S4, V5.S4, V1.S4
+	VADD	V2.S4, V6.S4, V2.S4
+	VADD	V3.S4, V7.S4, V3.S4
+	VEOR	V12.B16, V0.B16, V12.B16
+	VEOR	V13.B16, V1.B16, V13.B16
+	VEOR	V14.B16, V2.B16, V14.B16
+	VEOR	V15.B16, V3.B16, V15.B16
+	VREV32	V12.H8, V12.H8
+	VREV32	V13.H8, V13.H8
+	VREV32	V14.H8, V14.H8
+	VREV32	V15.H8, V15.H8
+	// V8..V11 += V12..V15
+	// V4..V7 <<<= ((V4..V7 XOR V8..V11), 12)
+	VADD	V8.S4, V12.S4, V8.S4
+	VADD	V9.S4, V13.S4, V9.S4
+	VADD	V10.S4, V14.S4, V10.S4
+	VADD	V11.S4, V15.S4, V11.S4
+	VEOR	V8.B16, V4.B16, V16.B16
+	VEOR	V9.B16, V5.B16, V17.B16
+	VEOR	V10.B16, V6.B16, V18.B16
+	VEOR	V11.B16, V7.B16, V19.B16
+	VSHL	$12, V16.S4, V4.S4
+	VSHL	$12, V17.S4, V5.S4
+	VSHL	$12, V18.S4, V6.S4
+	VSHL	$12, V19.S4, V7.S4
+	VSRI	$20, V16.S4, V4.S4
+	VSRI	$20, V17.S4, V5.S4
+	VSRI	$20, V18.S4, V6.S4
+	VSRI	$20, V19.S4, V7.S4
+
+	// V0..V3 += V4..V7
+	// V12..V15 <<<= ((V12..V15 XOR V0..V3), 8)
+	VADD	V0.S4, V4.S4, V0.S4
+	VADD	V1.S4, V5.S4, V1.S4
+	VADD	V2.S4, V6.S4, V2.S4
+	VADD	V3.S4, V7.S4, V3.S4
+	VEOR	V12.B16, V0.B16, V12.B16
+	VEOR	V13.B16, V1.B16, V13.B16
+	VEOR	V14.B16, V2.B16, V14.B16
+	VEOR	V15.B16, V3.B16, V15.B16
+	VTBL	V31.B16, [V12.B16], V12.B16
+	VTBL	V31.B16, [V13.B16], V13.B16
+	VTBL	V31.B16, [V14.B16], V14.B16
+	VTBL	V31.B16, [V15.B16], V15.B16
+
+	// V8..V11 += V12..V15
+	// V4..V7 <<<= ((V4..V7 XOR V8..V11), 7)
+	VADD	V12.S4, V8.S4, V8.S4
+	VADD	V13.S4, V9.S4, V9.S4
+	VADD	V14.S4, V10.S4, V10.S4
+	VADD	V15.S4, V11.S4, V11.S4
+	VEOR	V8.B16, V4.B16, V16.B16
+	VEOR	V9.B16, V5.B16, V17.B16
+	VEOR	V10.B16, V6.B16, V18.B16
+	VEOR	V11.B16, V7.B16, V19.B16
+	VSHL	$7, V16.S4, V4.S4
+	VSHL	$7, V17.S4, V5.S4
+	VSHL	$7, V18.S4, V6.S4
+	VSHL	$7, V19.S4, V7.S4
+	VSRI	$25, V16.S4, V4.S4
+	VSRI	$25, V17.S4, V5.S4
+	VSRI	$25, V18.S4, V6.S4
+	VSRI	$25, V19.S4, V7.S4
+
+	// V0..V3 += V5..V7, V4
+	// V15,V12-V14 <<<= ((V15,V12-V14 XOR V0..V3), 16)
+	VADD	V0.S4, V5.S4, V0.S4
+	VADD	V1.S4, V6.S4, V1.S4
+	VADD	V2.S4, V7.S4, V2.S4
+	VADD	V3.S4, V4.S4, V3.S4
+	VEOR	V15.B16, V0.B16, V15.B16
+	VEOR	V12.B16, V1.B16, V12.B16
+	VEOR	V13.B16, V2.B16, V13.B16
+	VEOR	V14.B16, V3.B16, V14.B16
+	VREV32	V12.H8, V12.H8
+	VREV32	V13.H8, V13.H8
+	VREV32	V14.H8, V14.H8
+	VREV32	V15.H8, V15.H8
+
+	// V10 += V15; V5 <<<= ((V10 XOR V5), 12)
+	// ...
+	VADD	V15.S4, V10.S4, V10.S4
+	VADD	V12.S4, V11.S4, V11.S4
+	VADD	V13.S4, V8.S4, V8.S4
+	VADD	V14.S4, V9.S4, V9.S4
+	VEOR	V10.B16, V5.B16, V16.B16
+	VEOR	V11.B16, V6.B16, V17.B16
+	VEOR	V8.B16, V7.B16, V18.B16
+	VEOR	V9.B16, V4.B16, V19.B16
+	VSHL	$12, V16.S4, V5.S4
+	VSHL	$12, V17.S4, V6.S4
+	VSHL	$12, V18.S4, V7.S4
+	VSHL	$12, V19.S4, V4.S4
+	VSRI	$20, V16.S4, V5.S4
+	VSRI	$20, V17.S4, V6.S4
+	VSRI	$20, V18.S4, V7.S4
+	VSRI	$20, V19.S4, V4.S4
+
+	// V0 += V5; V15 <<<= ((V0 XOR V15), 8)
+	// ...
+	VADD	V5.S4, V0.S4, V0.S4
+	VADD	V6.S4, V1.S4, V1.S4
+	VADD	V7.S4, V2.S4, V2.S4
+	VADD	V4.S4, V3.S4, V3.S4
+	VEOR	V0.B16, V15.B16, V15.B16
+	VEOR	V1.B16, V12.B16, V12.B16
+	VEOR	V2.B16, V13.B16, V13.B16
+	VEOR	V3.B16, V14.B16, V14.B16
+	VTBL	V31.B16, [V12.B16], V12.B16
+	VTBL	V31.B16, [V13.B16], V13.B16
+	VTBL	V31.B16, [V14.B16], V14.B16
+	VTBL	V31.B16, [V15.B16], V15.B16
+
+	// V10 += V15; V5 <<<= ((V10 XOR V5), 7)
+	// ...
+	VADD	V15.S4, V10.S4, V10.S4
+	VADD	V12.S4, V11.S4, V11.S4
+	VADD	V13.S4, V8.S4, V8.S4
+	VADD	V14.S4, V9.S4, V9.S4
+	VEOR	V10.B16, V5.B16, V16.B16
+	VEOR	V11.B16, V6.B16, V17.B16
+	VEOR	V8.B16, V7.B16, V18.B16
+	VEOR	V9.B16, V4.B16, V19.B16
+	VSHL	$7, V16.S4, V5.S4
+	VSHL	$7, V17.S4, V6.S4
+	VSHL	$7, V18.S4, V7.S4
+	VSHL	$7, V19.S4, V4.S4
+	VSRI	$25, V16.S4, V5.S4
+	VSRI	$25, V17.S4, V6.S4
+	VSRI	$25, V18.S4, V7.S4
+	VSRI	$25, V19.S4, V4.S4
+
+	SUB	$1, R21
+	CBNZ	R21, chacha
+
+	// VLD4R (R10), [V16.S4, V17.S4, V18.S4, V19.S4]
+	WORD	$0x4D60E950
+
+	// VLD4R 16(R4), [V20.S4, V21.S4, V22.S4, V23.S4]
+	WORD	$0x4DFFE894
+	VADD	V30.S4, V12.S4, V12.S4
+	VADD	V16.S4, V0.S4, V0.S4
+	VADD	V17.S4, V1.S4, V1.S4
+	VADD	V18.S4, V2.S4, V2.S4
+	VADD	V19.S4, V3.S4, V3.S4
+	// VLD4R 16(R4), [V24.S4, V25.S4, V26.S4, V27.S4]
+	WORD	$0x4DFFE898
+	// restore R4
+	SUB	$32, R4
+
+	// load counter + nonce
+	// VLD1R (R7), [V28.S4]
+	WORD	$0x4D40C8FC
+	// VLD3R (R6), [V29.S4, V30.S4, V31.S4]
+	WORD	$0x4D40E8DD
+
+	VADD	V20.S4, V4.S4, V4.S4
+	VADD	V21.S4, V5.S4, V5.S4
+	VADD	V22.S4, V6.S4, V6.S4
+	VADD	V23.S4, V7.S4, V7.S4
+	VADD	V24.S4, V8.S4, V8.S4
+	VADD	V25.S4, V9.S4, V9.S4
+	VADD	V26.S4, V10.S4, V10.S4
+	VADD	V27.S4, V11.S4, V11.S4
+	VADD	V28.S4, V12.S4, V12.S4
+	VADD	V29.S4, V13.S4, V13.S4
+	VADD	V30.S4, V14.S4, V14.S4
+	VADD	V31.S4, V15.S4, V15.S4
+
+	VZIP1	V1.S4, V0.S4, V16.S4
+	VZIP2	V1.S4, V0.S4, V17.S4
+	VZIP1	V3.S4, V2.S4, V18.S4
+	VZIP2	V3.S4, V2.S4, V19.S4
+	VZIP1	V5.S4, V4.S4, V20.S4
+	VZIP2	V5.S4, V4.S4, V21.S4
+	VZIP1	V7.S4, V6.S4, V22.S4
+	VZIP2	V7.S4, V6.S4, V23.S4
+	VZIP1	V9.S4, V8.S4, V24.S4
+	VZIP2	V9.S4, V8.S4, V25.S4
+	VZIP1	V11.S4, V10.S4, V26.S4
+	VZIP2	V11.S4, V10.S4, V27.S4
+	VZIP1	V13.S4, V12.S4, V28.S4
+	VZIP2	V13.S4, V12.S4, V29.S4
+	VZIP1	V15.S4, V14.S4, V30.S4
+	VZIP2	V15.S4, V14.S4, V31.S4
+	VZIP1	V18.D2, V16.D2, V0.D2
+	VZIP2	V18.D2, V16.D2, V4.D2
+	VZIP1	V19.D2, V17.D2, V8.D2
+	VZIP2	V19.D2, V17.D2, V12.D2
+	VLD1.P	64(R2), [V16.B16, V17.B16, V18.B16, V19.B16]
+
+	VZIP1	V22.D2, V20.D2, V1.D2
+	VZIP2	V22.D2, V20.D2, V5.D2
+	VZIP1	V23.D2, V21.D2, V9.D2
+	VZIP2	V23.D2, V21.D2, V13.D2
+	VLD1.P	64(R2), [V20.B16, V21.B16, V22.B16, V23.B16]
+	VZIP1	V26.D2, V24.D2, V2.D2
+	VZIP2	V26.D2, V24.D2, V6.D2
+	VZIP1	V27.D2, V25.D2, V10.D2
+	VZIP2	V27.D2, V25.D2, V14.D2
+	VLD1.P	64(R2), [V24.B16, V25.B16, V26.B16, V27.B16]
+	VZIP1	V30.D2, V28.D2, V3.D2
+	VZIP2	V30.D2, V28.D2, V7.D2
+	VZIP1	V31.D2, V29.D2, V11.D2
+	VZIP2	V31.D2, V29.D2, V15.D2
+	VLD1.P	64(R2), [V28.B16, V29.B16, V30.B16, V31.B16]
+	VEOR	V0.B16, V16.B16, V16.B16
+	VEOR	V1.B16, V17.B16, V17.B16
+	VEOR	V2.B16, V18.B16, V18.B16
+	VEOR	V3.B16, V19.B16, V19.B16
+	VST1.P	[V16.B16, V17.B16, V18.B16, V19.B16], 64(R1)
+	VEOR	V4.B16, V20.B16, V20.B16
+	VEOR	V5.B16, V21.B16, V21.B16
+	VEOR	V6.B16, V22.B16, V22.B16
+	VEOR	V7.B16, V23.B16, V23.B16
+	VST1.P	[V20.B16, V21.B16, V22.B16, V23.B16], 64(R1)
+	VEOR	V8.B16, V24.B16, V24.B16
+	VEOR	V9.B16, V25.B16, V25.B16
+	VEOR	V10.B16, V26.B16, V26.B16
+	VEOR	V11.B16, V27.B16, V27.B16
+	VST1.P	[V24.B16, V25.B16, V26.B16, V27.B16], 64(R1)
+	VEOR	V12.B16, V28.B16, V28.B16
+	VEOR	V13.B16, V29.B16, V29.B16
+	VEOR	V14.B16, V30.B16, V30.B16
+	VEOR	V15.B16, V31.B16, V31.B16
+	VST1.P	[V28.B16, V29.B16, V30.B16, V31.B16], 64(R1)
+
+	ADD	$4, R20
+	MOVW	R20, (R7) // update counter
+
+	CMP	R2, R12
+	BGT	loop
+
+	RET
+
+
+DATA	·constants+0x00(SB)/4, $0x61707865
+DATA	·constants+0x04(SB)/4, $0x3320646e
+DATA	·constants+0x08(SB)/4, $0x79622d32
+DATA	·constants+0x0c(SB)/4, $0x6b206574
+GLOBL	·constants(SB), NOPTR|RODATA, $32
+
+DATA	·incRotMatrix+0x00(SB)/4, $0x00000000
+DATA	·incRotMatrix+0x04(SB)/4, $0x00000001
+DATA	·incRotMatrix+0x08(SB)/4, $0x00000002
+DATA	·incRotMatrix+0x0c(SB)/4, $0x00000003
+DATA	·incRotMatrix+0x10(SB)/4, $0x02010003
+DATA	·incRotMatrix+0x14(SB)/4, $0x06050407
+DATA	·incRotMatrix+0x18(SB)/4, $0x0A09080B
+DATA	·incRotMatrix+0x1c(SB)/4, $0x0E0D0C0F
+GLOBL	·incRotMatrix(SB), NOPTR|RODATA, $32
diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_arm64.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_arm64.go
new file mode 100644
index 000000000..ad74e23ae
--- /dev/null
+++ b/vendor/golang.org/x/crypto/internal/chacha20/chacha_arm64.go
@@ -0,0 +1,31 @@
+// Copyright 2018 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.
+
+// +build go1.11
+// +build !gccgo
+
+package chacha20
+
+const (
+	haveAsm = true
+	bufSize = 256
+)
+
+//go:noescape
+func xorKeyStreamVX(dst, src []byte, key *[8]uint32, nonce *[3]uint32, counter *uint32)
+