From 3418e8c9afbdf3e94ab26a20d8f12c042ae29fc4 Mon Sep 17 00:00:00 2001 From: Wim Date: Thu, 30 May 2019 12:20:56 +0200 Subject: Use upstream whatsapp again (#809) --- .../x/crypto/internal/chacha20/chacha_s390x.go | 11 +- .../x/crypto/internal/chacha20/chacha_s390x.s | 23 --- vendor/golang.org/x/crypto/poly1305/mac_noasm.go | 11 ++ vendor/golang.org/x/crypto/poly1305/poly1305.go | 80 ++++++++-- vendor/golang.org/x/crypto/poly1305/sum_amd64.go | 58 ++++++- vendor/golang.org/x/crypto/poly1305/sum_amd64.s | 63 +++++--- vendor/golang.org/x/crypto/poly1305/sum_generic.go | 172 +++++++++++++++++++++ vendor/golang.org/x/crypto/poly1305/sum_noasm.go | 4 +- vendor/golang.org/x/crypto/poly1305/sum_ref.go | 139 ----------------- vendor/golang.org/x/crypto/poly1305/sum_s390x.go | 17 +- vendor/golang.org/x/crypto/poly1305/sum_s390x.s | 22 --- .../golang.org/x/crypto/poly1305/sum_vmsl_s390x.s | 22 --- .../x/crypto/ssh/terminal/util_windows.go | 6 +- 13 files changed, 360 insertions(+), 268 deletions(-) create mode 100644 vendor/golang.org/x/crypto/poly1305/mac_noasm.go create mode 100644 vendor/golang.org/x/crypto/poly1305/sum_generic.go delete mode 100644 vendor/golang.org/x/crypto/poly1305/sum_ref.go (limited to 'vendor/golang.org/x/crypto') diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go b/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go index 0c1c671c..aad645b4 100644 --- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go +++ b/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.go @@ -6,14 +6,13 @@ package chacha20 -var haveAsm = hasVectorFacility() +import ( + "golang.org/x/sys/cpu" +) -const bufSize = 256 +var haveAsm = cpu.S390X.HasVX -// hasVectorFacility reports whether the machine supports the vector -// facility (vx). -// Implementation in asm_s390x.s. -func hasVectorFacility() bool +const bufSize = 256 // xorKeyStreamVX is an assembly implementation of XORKeyStream. It must only // be called when the vector facility is available. diff --git a/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.s b/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.s index 98427c5e..57df4044 100644 --- a/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.s +++ b/vendor/golang.org/x/crypto/internal/chacha20/chacha_s390x.s @@ -258,26 +258,3 @@ tail: MOVD R8, R3 MOVD $0, R4 JMP continue - -// func hasVectorFacility() bool -TEXT ·hasVectorFacility(SB), NOSPLIT, $24-1 - MOVD $x-24(SP), R1 - XC $24, 0(R1), 0(R1) // clear the storage - MOVD $2, R0 // R0 is the number of double words stored -1 - WORD $0xB2B01000 // STFLE 0(R1) - XOR R0, R0 // reset the value of R0 - MOVBZ z-8(SP), R1 - AND $0x40, R1 - BEQ novector - -vectorinstalled: - // check if the vector instruction has been enabled - VLEIB $0, $0xF, V16 - VLGVB $0, V16, R1 - CMPBNE R1, $0xF, novector - MOVB $1, ret+0(FP) // have vx - RET - -novector: - MOVB $0, ret+0(FP) // no vx - RET diff --git a/vendor/golang.org/x/crypto/poly1305/mac_noasm.go b/vendor/golang.org/x/crypto/poly1305/mac_noasm.go new file mode 100644 index 00000000..8387d299 --- /dev/null +++ b/vendor/golang.org/x/crypto/poly1305/mac_noasm.go @@ -0,0 +1,11 @@ +// 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 !amd64 gccgo appengine + +package poly1305 + +type mac struct{ macGeneric } + +func newMAC(key *[32]byte) mac { return mac{newMACGeneric(key)} } diff --git a/vendor/golang.org/x/crypto/poly1305/poly1305.go b/vendor/golang.org/x/crypto/poly1305/poly1305.go index f562fa57..d076a562 100644 --- a/vendor/golang.org/x/crypto/poly1305/poly1305.go +++ b/vendor/golang.org/x/crypto/poly1305/poly1305.go @@ -2,21 +2,19 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -/* -Package poly1305 implements Poly1305 one-time message authentication code as -specified in https://cr.yp.to/mac/poly1305-20050329.pdf. - -Poly1305 is a fast, one-time authentication function. It is infeasible for an -attacker to generate an authenticator for a message without the key. However, a -key must only be used for a single message. Authenticating two different -messages with the same key allows an attacker to forge authenticators for other -messages with the same key. - -Poly1305 was originally coupled with AES in order to make Poly1305-AES. AES was -used with a fixed key in order to generate one-time keys from an nonce. -However, in this package AES isn't used and the one-time key is specified -directly. -*/ +// Package poly1305 implements Poly1305 one-time message authentication code as +// specified in https://cr.yp.to/mac/poly1305-20050329.pdf. +// +// Poly1305 is a fast, one-time authentication function. It is infeasible for an +// attacker to generate an authenticator for a message without the key. However, a +// key must only be used for a single message. Authenticating two different +// messages with the same key allows an attacker to forge authenticators for other +// messages with the same key. +// +// Poly1305 was originally coupled with AES in order to make Poly1305-AES. AES was +// used with a fixed key in order to generate one-time keys from an nonce. +// However, in this package AES isn't used and the one-time key is specified +// directly. package poly1305 // import "golang.org/x/crypto/poly1305" import "crypto/subtle" @@ -31,3 +29,55 @@ func Verify(mac *[16]byte, m []byte, key *[32]byte) bool { Sum(&tmp, m, key) return subtle.ConstantTimeCompare(tmp[:], mac[:]) == 1 } + +// New returns a new MAC computing an authentication +// tag of all data written to it with the given key. +// This allows writing the message progressively instead +// of passing it as a single slice. Common users should use +// the Sum function instead. +// +// The key must be unique for each message, as authenticating +// two different messages with the same key allows an attacker +// to forge messages at will. +func New(key *[32]byte) *MAC { + return &MAC{ + mac: newMAC(key), + finalized: false, + } +} + +// MAC is an io.Writer computing an authentication tag +// of the data written to it. +// +// MAC cannot be used like common hash.Hash implementations, +// because using a poly1305 key twice breaks its security. +// Therefore writing data to a running MAC after calling +// Sum causes it to panic. +type MAC struct { + mac // platform-dependent implementation + + finalized bool +} + +// Size returns the number of bytes Sum will return. +func (h *MAC) Size() int { return TagSize } + +// Write adds more data to the running message authentication code. +// It never returns an error. +// +// It must not be called after the first call of Sum. +func (h *MAC) Write(p []byte) (n int, err error) { + if h.finalized { + panic("poly1305: write to MAC after Sum") + } + return h.mac.Write(p) +} + +// Sum computes the authenticator of all data written to the +// message authentication code. +func (h *MAC) Sum(b []byte) []byte { + var mac [TagSize]byte + h.mac.Sum(&mac) + h.finalized = true + return append(b, mac[:]...) +} diff --git a/vendor/golang.org/x/crypto/poly1305/sum_amd64.go b/vendor/golang.org/x/crypto/poly1305/sum_amd64.go index 4dd72fe7..2dbf42aa 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_amd64.go +++ b/vendor/golang.org/x/crypto/poly1305/sum_amd64.go @@ -6,17 +6,63 @@ package poly1305 -// This function is implemented in sum_amd64.s //go:noescape -func poly1305(out *[16]byte, m *byte, mlen uint64, key *[32]byte) +func initialize(state *[7]uint64, key *[32]byte) + +//go:noescape +func update(state *[7]uint64, msg []byte) + +//go:noescape +func finalize(tag *[TagSize]byte, state *[7]uint64) // Sum generates an authenticator for m using a one-time key and puts the // 16-byte result into out. Authenticating two different messages with the same // key allows an attacker to forge messages at will. func Sum(out *[16]byte, m []byte, key *[32]byte) { - var mPtr *byte - if len(m) > 0 { - mPtr = &m[0] + h := newMAC(key) + h.Write(m) + h.Sum(out) +} + +func newMAC(key *[32]byte) (h mac) { + initialize(&h.state, key) + return +} + +type mac struct { + state [7]uint64 // := uint64{ h0, h1, h2, r0, r1, pad0, pad1 } + + buffer [TagSize]byte + offset int +} + +func (h *mac) Write(p []byte) (n int, err error) { + n = len(p) + if h.offset > 0 { + remaining := TagSize - h.offset + if n < remaining { + h.offset += copy(h.buffer[h.offset:], p) + return n, nil + } + copy(h.buffer[h.offset:], p[:remaining]) + p = p[remaining:] + h.offset = 0 + update(&h.state, h.buffer[:]) + } + if nn := len(p) - (len(p) % TagSize); nn > 0 { + update(&h.state, p[:nn]) + p = p[nn:] + } + if len(p) > 0 { + h.offset += copy(h.buffer[h.offset:], p) + } + return n, nil +} + +func (h *mac) Sum(out *[16]byte) { + state := h.state + if h.offset > 0 { + update(&state, h.buffer[:h.offset]) } - poly1305(out, mPtr, uint64(len(m)), key) + finalize(out, &state) } diff --git a/vendor/golang.org/x/crypto/poly1305/sum_amd64.s b/vendor/golang.org/x/crypto/poly1305/sum_amd64.s index 2edae638..7d600f13 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_amd64.s +++ b/vendor/golang.org/x/crypto/poly1305/sum_amd64.s @@ -58,20 +58,17 @@ DATA ·poly1305Mask<>+0x00(SB)/8, $0x0FFFFFFC0FFFFFFF DATA ·poly1305Mask<>+0x08(SB)/8, $0x0FFFFFFC0FFFFFFC GLOBL ·poly1305Mask<>(SB), RODATA, $16 -// func poly1305(out *[16]byte, m *byte, mlen uint64, key *[32]key) -TEXT ·poly1305(SB), $0-32 - MOVQ out+0(FP), DI - MOVQ m+8(FP), SI - MOVQ mlen+16(FP), R15 - MOVQ key+24(FP), AX - - MOVQ 0(AX), R11 - MOVQ 8(AX), R12 - ANDQ ·poly1305Mask<>(SB), R11 // r0 - ANDQ ·poly1305Mask<>+8(SB), R12 // r1 - XORQ R8, R8 // h0 - XORQ R9, R9 // h1 - XORQ R10, R10 // h2 +// func update(state *[7]uint64, msg []byte) +TEXT ·update(SB), $0-32 + MOVQ state+0(FP), DI + MOVQ msg_base+8(FP), SI + MOVQ msg_len+16(FP), R15 + + MOVQ 0(DI), R8 // h0 + MOVQ 8(DI), R9 // h1 + MOVQ 16(DI), R10 // h2 + MOVQ 24(DI), R11 // r0 + MOVQ 32(DI), R12 // r1 CMPQ R15, $16 JB bytes_between_0_and_15 @@ -109,16 +106,42 @@ flush_buffer: JMP multiply done: - MOVQ R8, AX - MOVQ R9, BX + MOVQ R8, 0(DI) + MOVQ R9, 8(DI) + MOVQ R10, 16(DI) + RET + +// func initialize(state *[7]uint64, key *[32]byte) +TEXT ·initialize(SB), $0-16 + MOVQ state+0(FP), DI + MOVQ key+8(FP), SI + + // state[0...7] is initialized with zero + MOVOU 0(SI), X0 + MOVOU 16(SI), X1 + MOVOU ·poly1305Mask<>(SB), X2 + PAND X2, X0 + MOVOU X0, 24(DI) + MOVOU X1, 40(DI) + RET + +// func finalize(tag *[TagSize]byte, state *[7]uint64) +TEXT ·finalize(SB), $0-16 + MOVQ tag+0(FP), DI + MOVQ state+8(FP), SI + + MOVQ 0(SI), AX + MOVQ 8(SI), BX + MOVQ 16(SI), CX + MOVQ AX, R8 + MOVQ BX, R9 SUBQ $0xFFFFFFFFFFFFFFFB, AX SBBQ $0xFFFFFFFFFFFFFFFF, BX - SBBQ $3, R10 + SBBQ $3, CX CMOVQCS R8, AX CMOVQCS R9, BX - MOVQ key+24(FP), R8 - ADDQ 16(R8), AX - ADCQ 24(R8), BX + ADDQ 40(SI), AX + ADCQ 48(SI), BX MOVQ AX, 0(DI) MOVQ BX, 8(DI) diff --git a/vendor/golang.org/x/crypto/poly1305/sum_generic.go b/vendor/golang.org/x/crypto/poly1305/sum_generic.go new file mode 100644 index 00000000..bab76ef0 --- /dev/null +++ b/vendor/golang.org/x/crypto/poly1305/sum_generic.go @@ -0,0 +1,172 @@ +// 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. + +package poly1305 + +import "encoding/binary" + +const ( + msgBlock = uint32(1 << 24) + finalBlock = uint32(0) +) + +// sumGeneric generates an authenticator for msg using a one-time key and +// puts the 16-byte result into out. This is the generic implementation of +// Sum and should be called if no assembly implementation is available. +func sumGeneric(out *[TagSize]byte, msg []byte, key *[32]byte) { + h := newMACGeneric(key) + h.Write(msg) + h.Sum(out) +} + +func newMACGeneric(key *[32]byte) (h macGeneric) { + h.r[0] = binary.LittleEndian.Uint32(key[0:]) & 0x3ffffff + h.r[1] = (binary.LittleEndian.Uint32(key[3:]) >> 2) & 0x3ffff03 + h.r[2] = (binary.LittleEndian.Uint32(key[6:]) >> 4) & 0x3ffc0ff + h.r[3] = (binary.LittleEndian.Uint32(key[9:]) >> 6) & 0x3f03fff + h.r[4] = (binary.LittleEndian.Uint32(key[12:]) >> 8) & 0x00fffff + + h.s[0] = binary.LittleEndian.Uint32(key[16:]) + h.s[1] = binary.LittleEndian.Uint32(key[20:]) + h.s[2] = binary.LittleEndian.Uint32(key[24:]) + h.s[3] = binary.LittleEndian.Uint32(key[28:]) + return +} + +type macGeneric struct { + h, r [5]uint32 + s [4]uint32 + + buffer [TagSize]byte + offset int +} + +func (h *macGeneric) Write(p []byte) (n int, err error) { + n = len(p) + if h.offset > 0 { + remaining := TagSize - h.offset + if n < remaining { + h.offset += copy(h.buffer[h.offset:], p) + return n, nil + } + copy(h.buffer[h.offset:], p[:remaining]) + p = p[remaining:] + h.offset = 0 + updateGeneric(h.buffer[:], msgBlock, &(h.h), &(h.r)) + } + if nn := len(p) - (len(p) % TagSize); nn > 0 { + updateGeneric(p, msgBlock, &(h.h), &(h.r)) + p = p[nn:] + } + if len(p) > 0 { + h.offset += copy(h.buffer[h.offset:], p) + } + return n, nil +} + +func (h *macGeneric) Sum(out *[16]byte) { + H, R := h.h, h.r + if h.offset > 0 { + var buffer [TagSize]byte + copy(buffer[:], h.buffer[:h.offset]) + buffer[h.offset] = 1 // invariant: h.offset < TagSize + updateGeneric(buffer[:], finalBlock, &H, &R) + } + finalizeGeneric(out, &H, &(h.s)) +} + +func updateGeneric(msg []byte, flag uint32, h, r *[5]uint32) { + h0, h1, h2, h3, h4 := h[0], h[1], h[2], h[3], h[4] + r0, r1, r2, r3, r4 := uint64(r[0]), uint64(r[1]), uint64(r[2]), uint64(r[3]), uint64(r[4]) + R1, R2, R3, R4 := r1*5, r2*5, r3*5, r4*5 + + for len(msg) >= TagSize { + // h += msg + h0 += binary.LittleEndian.Uint32(msg[0:]) & 0x3ffffff + h1 += (binary.LittleEndian.Uint32(msg[3:]) >> 2) & 0x3ffffff + h2 += (binary.LittleEndian.Uint32(msg[6:]) >> 4) & 0x3ffffff + h3 += (binary.LittleEndian.Uint32(msg[9:]) >> 6) & 0x3ffffff + h4 += (binary.LittleEndian.Uint32(msg[12:]) >> 8) | flag + + // h *= r + d0 := (uint64(h0) * r0) + (uint64(h1) * R4) + (uint64(h2) * R3) + (uint64(h3) * R2) + (uint64(h4) * R1) + d1 := (d0 >> 26) + (uint64(h0) * r1) + (uint64(h1) * r0) + (uint64(h2) * R4) + (uint64(h3) * R3) + (uint64(h4) * R2) + d2 := (d1 >> 26) + (uint64(h0) * r2) + (uint64(h1) * r1) + (uint64(h2) * r0) + (uint64(h3) * R4) + (uint64(h4) * R3) + d3 := (d2 >> 26) + (uint64(h0) * r3) + (uint64(h1) * r2) + (uint64(h2) * r1) + (uint64(h3) * r0) + (uint64(h4) * R4) + d4 := (d3 >> 26) + (uint64(h0) * r4) + (uint64(h1) * r3) + (uint64(h2) * r2) + (uint64(h3) * r1) + (uint64(h4) * r0) + + // h %= p + h0 = uint32(d0) & 0x3ffffff + h1 = uint32(d1) & 0x3ffffff + h2 = uint32(d2) & 0x3ffffff + h3 = uint32(d3) & 0x3ffffff + h4 = uint32(d4) & 0x3ffffff + + h0 += uint32(d4>>26) * 5 + h1 += h0 >> 26 + h0 = h0 & 0x3ffffff + + msg = msg[TagSize:] + } + + h[0], h[1], h[2], h[3], h[4] = h0, h1, h2, h3, h4 +} + +func finalizeGeneric(out *[TagSize]byte, h *[5]uint32, s *[4]uint32) { + h0, h1, h2, h3, h4 := h[0], h[1], h[2], h[3], h[4] + + // h %= p reduction + h2 += h1 >> 26 + h1 &= 0x3ffffff + h3 += h2 >> 26 + h2 &= 0x3ffffff + h4 += h3 >> 26 + h3 &= 0x3ffffff + h0 += 5 * (h4 >> 26) + h4 &= 0x3ffffff + h1 += h0 >> 26 + h0 &= 0x3ffffff + + // h - p + t0 := h0 + 5 + t1 := h1 + (t0 >> 26) + t2 := h2 + (t1 >> 26) + t3 := h3 + (t2 >> 26) + t4 := h4 + (t3 >> 26) - (1 << 26) + t0 &= 0x3ffffff + t1 &= 0x3ffffff + t2 &= 0x3ffffff + t3 &= 0x3ffffff + + // select h if h < p else h - p + t_mask := (t4 >> 31) - 1 + h_mask := ^t_mask + h0 = (h0 & h_mask) | (t0 & t_mask) + h1 = (h1 & h_mask) | (t1 & t_mask) + h2 = (h2 & h_mask) | (t2 & t_mask) + h3 = (h3 & h_mask) | (t3 & t_mask) + h4 = (h4 & h_mask) | (t4 & t_mask) + + // h %= 2^128 + h0 |= h1 << 26 + h1 = ((h1 >> 6) | (h2 << 20)) + h2 = ((h2 >> 12) | (h3 << 14)) + h3 = ((h3 >> 18) | (h4 << 8)) + + // s: the s part of the key + // tag = (h + s) % (2^128) + t := uint64(h0) + uint64(s[0]) + h0 = uint32(t) + t = uint64(h1) + uint64(s[1]) + (t >> 32) + h1 = uint32(t) + t = uint64(h2) + uint64(s[2]) + (t >> 32) + h2 = uint32(t) + t = uint64(h3) + uint64(s[3]) + (t >> 32) + h3 = uint32(t) + + binary.LittleEndian.PutUint32(out[0:], h0) + binary.LittleEndian.PutUint32(out[4:], h1) + binary.LittleEndian.PutUint32(out[8:], h2) + binary.LittleEndian.PutUint32(out[12:], h3) +} diff --git a/vendor/golang.org/x/crypto/poly1305/sum_noasm.go b/vendor/golang.org/x/crypto/poly1305/sum_noasm.go index 751eec52..fcdef46a 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_noasm.go +++ b/vendor/golang.org/x/crypto/poly1305/sum_noasm.go @@ -10,5 +10,7 @@ package poly1305 // 16-byte result into out. Authenticating two different messages with the same // key allows an attacker to forge messages at will. func Sum(out *[TagSize]byte, msg []byte, key *[32]byte) { - sumGeneric(out, msg, key) + h := newMAC(key) + h.Write(msg) + h.Sum(out) } diff --git a/vendor/golang.org/x/crypto/poly1305/sum_ref.go b/vendor/golang.org/x/crypto/poly1305/sum_ref.go deleted file mode 100644 index c4d59bd0..00000000 --- a/vendor/golang.org/x/crypto/poly1305/sum_ref.go +++ /dev/null @@ -1,139 +0,0 @@ -// Copyright 2012 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 poly1305 - -import "encoding/binary" - -// sumGeneric generates an authenticator for msg using a one-time key and -// puts the 16-byte result into out. This is the generic implementation of -// Sum and should be called if no assembly implementation is available. -func sumGeneric(out *[TagSize]byte, msg []byte, key *[32]byte) { - var ( - h0, h1, h2, h3, h4 uint32 // the hash accumulators - r0, r1, r2, r3, r4 uint64 // the r part of the key - ) - - r0 = uint64(binary.LittleEndian.Uint32(key[0:]) & 0x3ffffff) - r1 = uint64((binary.LittleEndian.Uint32(key[3:]) >> 2) & 0x3ffff03) - r2 = uint64((binary.LittleEndian.Uint32(key[6:]) >> 4) & 0x3ffc0ff) - r3 = uint64((binary.LittleEndian.Uint32(key[9:]) >> 6) & 0x3f03fff) - r4 = uint64((binary.LittleEndian.Uint32(key[12:]) >> 8) & 0x00fffff) - - R1, R2, R3, R4 := r1*5, r2*5, r3*5, r4*5 - - for len(msg) >= TagSize { - // h += msg - h0 += binary.LittleEndian.Uint32(msg[0:]) & 0x3ffffff - h1 += (binary.LittleEndian.Uint32(msg[3:]) >> 2) & 0x3ffffff - h2 += (binary.LittleEndian.Uint32(msg[6:]) >> 4) & 0x3ffffff - h3 += (binary.LittleEndian.Uint32(msg[9:]) >> 6) & 0x3ffffff - h4 += (binary.LittleEndian.Uint32(msg[12:]) >> 8) | (1 << 24) - - // h *= r - d0 := (uint64(h0) * r0) + (uint64(h1) * R4) + (uint64(h2) * R3) + (uint64(h3) * R2) + (uint64(h4) * R1) - d1 := (d0 >> 26) + (uint64(h0) * r1) + (uint64(h1) * r0) + (uint64(h2) * R4) + (uint64(h3) * R3) + (uint64(h4) * R2) - d2 := (d1 >> 26) + (uint64(h0) * r2) + (uint64(h1) * r1) + (uint64(h2) * r0) + (uint64(h3) * R4) + (uint64(h4) * R3) - d3 := (d2 >> 26) + (uint64(h0) * r3) + (uint64(h1) * r2) + (uint64(h2) * r1) + (uint64(h3) * r0) + (uint64(h4) * R4) - d4 := (d3 >> 26) + (uint64(h0) * r4) + (uint64(h1) * r3) + (uint64(h2) * r2) + (uint64(h3) * r1) + (uint64(h4) * r0) - - // h %= p - h0 = uint32(d0) & 0x3ffffff - h1 = uint32(d1) & 0x3ffffff - h2 = uint32(d2) & 0x3ffffff - h3 = uint32(d3) & 0x3ffffff - h4 = uint32(d4) & 0x3ffffff - - h0 += uint32(d4>>26) * 5 - h1 += h0 >> 26 - h0 = h0 & 0x3ffffff - - msg = msg[TagSize:] - } - - if len(msg) > 0 { - var block [TagSize]byte - off := copy(block[:], msg) - block[off] = 0x01 - - // h += msg - h0 += binary.LittleEndian.Uint32(block[0:]) & 0x3ffffff - h1 += (binary.LittleEndian.Uint32(block[3:]) >> 2) & 0x3ffffff - h2 += (binary.LittleEndian.Uint32(block[6:]) >> 4) & 0x3ffffff - h3 += (binary.LittleEndian.Uint32(block[9:]) >> 6) & 0x3ffffff - h4 += (binary.LittleEndian.Uint32(block[12:]) >> 8) - - // h *= r - d0 := (uint64(h0) * r0) + (uint64(h1) * R4) + (uint64(h2) * R3) + (uint64(h3) * R2) + (uint64(h4) * R1) - d1 := (d0 >> 26) + (uint64(h0) * r1) + (uint64(h1) * r0) + (uint64(h2) * R4) + (uint64(h3) * R3) + (uint64(h4) * R2) - d2 := (d1 >> 26) + (uint64(h0) * r2) + (uint64(h1) * r1) + (uint64(h2) * r0) + (uint64(h3) * R4) + (uint64(h4) * R3) - d3 := (d2 >> 26) + (uint64(h0) * r3) + (uint64(h1) * r2) + (uint64(h2) * r1) + (uint64(h3) * r0) + (uint64(h4) * R4) - d4 := (d3 >> 26) + (uint64(h0) * r4) + (uint64(h1) * r3) + (uint64(h2) * r2) + (uint64(h3) * r1) + (uint64(h4) * r0) - - // h %= p - h0 = uint32(d0) & 0x3ffffff - h1 = uint32(d1) & 0x3ffffff - h2 = uint32(d2) & 0x3ffffff - h3 = uint32(d3) & 0x3ffffff - h4 = uint32(d4) & 0x3ffffff - - h0 += uint32(d4>>26) * 5 - h1 += h0 >> 26 - h0 = h0 & 0x3ffffff - } - - // h %= p reduction - h2 += h1 >> 26 - h1 &= 0x3ffffff - h3 += h2 >> 26 - h2 &= 0x3ffffff - h4 += h3 >> 26 - h3 &= 0x3ffffff - h0 += 5 * (h4 >> 26) - h4 &= 0x3ffffff - h1 += h0 >> 26 - h0 &= 0x3ffffff - - // h - p - t0 := h0 + 5 - t1 := h1 + (t0 >> 26) - t2 := h2 + (t1 >> 26) - t3 := h3 + (t2 >> 26) - t4 := h4 + (t3 >> 26) - (1 << 26) - t0 &= 0x3ffffff - t1 &= 0x3ffffff - t2 &= 0x3ffffff - t3 &= 0x3ffffff - - // select h if h < p else h - p - t_mask := (t4 >> 31) - 1 - h_mask := ^t_mask - h0 = (h0 & h_mask) | (t0 & t_mask) - h1 = (h1 & h_mask) | (t1 & t_mask) - h2 = (h2 & h_mask) | (t2 & t_mask) - h3 = (h3 & h_mask) | (t3 & t_mask) - h4 = (h4 & h_mask) | (t4 & t_mask) - - // h %= 2^128 - h0 |= h1 << 26 - h1 = ((h1 >> 6) | (h2 << 20)) - h2 = ((h2 >> 12) | (h3 << 14)) - h3 = ((h3 >> 18) | (h4 << 8)) - - // s: the s part of the key - // tag = (h + s) % (2^128) - t := uint64(h0) + uint64(binary.LittleEndian.Uint32(key[16:])) - h0 = uint32(t) - t = uint64(h1) + uint64(binary.LittleEndian.Uint32(key[20:])) + (t >> 32) - h1 = uint32(t) - t = uint64(h2) + uint64(binary.LittleEndian.Uint32(key[24:])) + (t >> 32) - h2 = uint32(t) - t = uint64(h3) + uint64(binary.LittleEndian.Uint32(key[28:])) + (t >> 32) - h3 = uint32(t) - - binary.LittleEndian.PutUint32(out[0:], h0) - binary.LittleEndian.PutUint32(out[4:], h1) - binary.LittleEndian.PutUint32(out[8:], h2) - binary.LittleEndian.PutUint32(out[12:], h3) -} diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go b/vendor/golang.org/x/crypto/poly1305/sum_s390x.go index 7a266cec..ec99e07e 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.go +++ b/vendor/golang.org/x/crypto/poly1305/sum_s390x.go @@ -6,16 +6,9 @@ package poly1305 -// hasVectorFacility reports whether the machine supports -// the vector facility (vx). -func hasVectorFacility() bool - -// hasVMSLFacility reports whether the machine supports -// Vector Multiply Sum Logical (VMSL). -func hasVMSLFacility() bool - -var hasVX = hasVectorFacility() -var hasVMSL = hasVMSLFacility() +import ( + "golang.org/x/sys/cpu" +) // poly1305vx is an assembly implementation of Poly1305 that uses vector // instructions. It must only be called if the vector facility (vx) is @@ -33,12 +26,12 @@ func poly1305vmsl(out *[16]byte, m *byte, mlen uint64, key *[32]byte) // 16-byte result into out. Authenticating two different messages with the same // key allows an attacker to forge messages at will. func Sum(out *[16]byte, m []byte, key *[32]byte) { - if hasVX { + if cpu.S390X.HasVX { var mPtr *byte if len(m) > 0 { mPtr = &m[0] } - if hasVMSL && len(m) > 256 { + if cpu.S390X.HasVXE && len(m) > 256 { poly1305vmsl(out, mPtr, uint64(len(m)), key) } else { poly1305vx(out, mPtr, uint64(len(m)), key) diff --git a/vendor/golang.org/x/crypto/poly1305/sum_s390x.s b/vendor/golang.org/x/crypto/poly1305/sum_s390x.s index 356c07a6..ca5a309d 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_s390x.s +++ b/vendor/golang.org/x/crypto/poly1305/sum_s390x.s @@ -376,25 +376,3 @@ b1: MOVD $0, R3 BR multiply - -TEXT ·hasVectorFacility(SB), NOSPLIT, $24-1 - MOVD $x-24(SP), R1 - XC $24, 0(R1), 0(R1) // clear the storage - MOVD $2, R0 // R0 is the number of double words stored -1 - WORD $0xB2B01000 // STFLE 0(R1) - XOR R0, R0 // reset the value of R0 - MOVBZ z-8(SP), R1 - AND $0x40, R1 - BEQ novector - -vectorinstalled: - // check if the vector instruction has been enabled - VLEIB $0, $0xF, V16 - VLGVB $0, V16, R1 - CMPBNE R1, $0xF, novector - MOVB $1, ret+0(FP) // have vx - RET - -novector: - MOVB $0, ret+0(FP) // no vx - RET diff --git a/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s b/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s index e548020b..e60bbc1d 100644 --- a/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s +++ b/vendor/golang.org/x/crypto/poly1305/sum_vmsl_s390x.s @@ -907,25 +907,3 @@ square: MULTIPLY(H0_0, H1_0, H2_0, H0_1, H1_1, H2_1, R_0, R_1, R_2, R5_1, R5_2, M0, M1, M2, M3, M4, M5, T_0, T_1, T_2, T_3, T_4, T_5, T_6, T_7, T_8, T_9) REDUCE2(H0_0, H1_0, H2_0, M0, M1, M2, M3, M4, T_9, T_10, H0_1, M5) BR next - -TEXT ·hasVMSLFacility(SB), NOSPLIT, $24-1 - MOVD $x-24(SP), R1 - XC $24, 0(R1), 0(R1) // clear the storage - MOVD $2, R0 // R0 is the number of double words stored -1 - WORD $0xB2B01000 // STFLE 0(R1) - XOR R0, R0 // reset the value of R0 - MOVBZ z-8(SP), R1 - AND $0x01, R1 - BEQ novmsl - -vectorinstalled: - // check if the vector instruction has been enabled - VLEIB $0, $0xF, V16 - VLGVB $0, V16, R1 - CMPBNE R1, $0xF, novmsl - MOVB $1, ret+0(FP) // have vx - RET - -novmsl: - MOVB $0, ret+0(FP) // no vx - RET diff --git a/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go b/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go index 6cb8a950..5cfdf8f3 100644 --- a/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go +++ b/vendor/golang.org/x/crypto/ssh/terminal/util_windows.go @@ -64,13 +64,15 @@ func Restore(fd int, state *State) error { return windows.SetConsoleMode(windows.Handle(fd), state.mode) } -// GetSize returns the dimensions of the given terminal. +// GetSize returns the visible dimensions of the given terminal. +// +// These dimensions don't include any scrollback buffer height. func GetSize(fd int) (width, height int, err error) { var info windows.ConsoleScreenBufferInfo if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil { return 0, 0, err } - return int(info.Size.X), int(info.Size.Y), nil + return int(info.Window.Right - info.Window.Left + 1), int(info.Window.Bottom - info.Window.Top + 1), nil } // ReadPassword reads a line of input from a terminal without local echo. This -- cgit v1.2.3