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Adds go.mod (#21)
* Reset Makefile after adding go.mod * Remove ``build`` directory * Simiplifies makefile * shake: Make xorIn copyOut platform specific
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commit
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@ -1,5 +1,9 @@
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sudo: required
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language: go
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go:
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- 1.11.x
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- 1.12.x
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- master
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matrix:
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include:
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38
Makefile
38
Makefile
@ -2,8 +2,6 @@
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MK_FILE_PATH = $(lastword $(MAKEFILE_LIST))
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PRJ_DIR = $(abspath $(dir $(MK_FILE_PATH)))
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GO ?= go
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GOPATH_LOCAL = $(PRJ_DIR)/build/
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GOPATH_DIR = src/github.com/henrydcase/nobs
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VENDOR_DIR = tls_vendor
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OPTS ?= -v
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NOASM ?=
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@ -31,37 +29,19 @@ ifeq ($(DBG),1)
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OPTS_ENV+= GOTRACEBACK=crash # enable core dumps
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endif
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TARGETS ?= \
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dh \
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drbg \
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ec \
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hash \
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kem \
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utils
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prep-%:
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mkdir -p $(GOPATH_LOCAL)/$(GOPATH_DIR)
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cp -rf $* $(GOPATH_LOCAL)/$(GOPATH_DIR)/$*
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make_dirs:
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mkdir -p $(GOPATH_LOCAL)/$(GOPATH_DIR)
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cp -rf etc $(GOPATH_LOCAL)/$(GOPATH_DIR)
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test: clean make_dirs $(addprefix prep-,$(TARGETS))
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cd $(GOPATH_LOCAL); $(OPTS_ENV) GOPATH=$(GOPATH_LOCAL) go test $(OPTS) $(TEST_PATH)
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test:
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$(OPTS_ENV) $(GO) test $(OPTS) $(TEST_PATH)
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cover:
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cd $(GOPATH_LOCAL); $(OPTS_ENV) GOPATH=$(GOPATH_LOCAL) go test \
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-race -coverprofile=coverage_$(NOASM).txt -covermode=atomic $(OPTS) $(TEST_PATH)
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cat $(GOPATH_LOCAL)/coverage_$(NOASM).txt >> coverage.txt
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$(GO) test \
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-coverprofile=coverage.txt -covermode=atomic $(OPTS) $(TEST_PATH)
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bench: clean $(addprefix prep-,$(TARGETS))
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cd $(GOPATH_LOCAL); GOCACHE=$(GOCACHE) GOPATH=$(GOPATH_LOCAL) $(GO) test \
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$(BENCH_OPTS) $(TEST_PATH)
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bench:
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$(GO) test $(BENCH_OPTS) $(TEST_PATH)
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clean:
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rm -rf $(GOPATH_LOCAL)
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rm -rf $(VENDOR_DIR)
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rm -rf coverage.txt
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vendor-sidh-for-tls: clean
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mkdir -p $(VENDOR_DIR)/github_com/henrydcase/nobs/
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@ -69,7 +49,7 @@ vendor-sidh-for-tls: clean
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find $(VENDOR_DIR) -type f -print0 -name "*.go" | xargs -0 sed -i 's/github\.com/github_com/g'
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pprof-cpu:
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$(GO) tool pprof $(GOPATH_LOCAL)/cpu.out
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$(GO) tool pprof cpu.out
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pprof-mem:
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$(GO) tool pprof $(GOPATH_LOCAL)/mem0.out
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$(GO) tool pprof mem0.out
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@ -83,7 +83,7 @@ func (d *state) permute() {
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case spongeAbsorbing:
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// If we're absorbing, we need to xor the input into the state
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// before applying the permutation.
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xorInUnaligned(d, d.buf)
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xorIn(d, d.buf)
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d.buf = d.storage[:0]
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keccakF1600(&d.a)
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case spongeSqueezing:
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@ -91,7 +91,7 @@ func (d *state) permute() {
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// copying more output.
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keccakF1600(&d.a)
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d.buf = d.storage[:d.rate]
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copyOutUnaligned(d, d.buf)
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copyOut(d, d.buf)
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}
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}
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@ -119,7 +119,7 @@ func (d *state) padAndPermute(dsbyte byte) {
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d.permute()
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d.state = spongeSqueezing
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d.buf = d.storage[:d.rate]
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copyOutUnaligned(d, d.buf)
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copyOut(d, d.buf)
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}
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// Write absorbs more data into the hash's state. It produces an error
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@ -136,7 +136,7 @@ func (d *state) Write(p []byte) (written int, err error) {
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for len(p) > 0 {
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if len(d.buf) == 0 && len(p) >= d.rate {
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// The fast path; absorb a full "rate" bytes of input and apply the permutation.
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xorInUnaligned(d, p[:d.rate])
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xorIn(d, p[:d.rate])
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p = p[d.rate:]
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keccakF1600(&d.a)
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} else {
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@ -22,11 +22,6 @@ import (
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"testing"
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)
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var (
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xorIn = xorInUnaligned
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copyOut = copyOutUnaligned
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)
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const (
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testString = "brekeccakkeccak koax koax"
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katFilename = "testdata/keccakKats.json.deflate"
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@ -68,66 +63,53 @@ type KeccakKats struct {
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}
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}
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func testUnalignedAndGeneric(t *testing.T, testf func(impl string)) {
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xorInOrig, copyOutOrig := xorIn, copyOut
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xorIn, copyOut = xorInGeneric, copyOutGeneric
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testf("generic")
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if xorImplementationUnaligned != "generic" {
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xorIn, copyOut = xorInGeneric, copyOutGeneric
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testf("unaligned")
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}
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xorIn, copyOut = xorInOrig, copyOutOrig
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}
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// TestKeccakKats tests the SHA-3 and Shake implementations against all the
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// ShortMsgKATs from https://github.com/gvanas/KeccakCodePackage
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// (The testvectors are stored in keccakKats.json.deflate due to their length.)
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func TestKeccakKats(t *testing.T) {
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testUnalignedAndGeneric(t, func(impl string) {
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// Read the KATs.
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deflated, err := os.Open(katFilename)
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if err != nil {
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t.Errorf("error opening %s: %s", katFilename, err)
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}
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file := flate.NewReader(deflated)
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dec := json.NewDecoder(file)
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var katSet KeccakKats
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err = dec.Decode(&katSet)
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if err != nil {
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t.Errorf("error decoding KATs: %s", err)
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}
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// Read the KATs.
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deflated, err := os.Open(katFilename)
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if err != nil {
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t.Errorf("error opening %s: %s", katFilename, err)
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}
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file := flate.NewReader(deflated)
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dec := json.NewDecoder(file)
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var katSet KeccakKats
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err = dec.Decode(&katSet)
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if err != nil {
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t.Errorf("error decoding KATs: %s", err)
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}
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for algo, v := range testShakes {
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for _, kat := range katSet.Kats[algo] {
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N, err := hex.DecodeString(kat.N)
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if err != nil {
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t.Errorf("error decoding KAT: %s", err)
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}
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S, err := hex.DecodeString(kat.S)
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if err != nil {
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t.Errorf("error decoding KAT: %s", err)
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}
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d := v.constructor(N, S)
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in, err := hex.DecodeString(kat.Message)
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if err != nil {
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t.Errorf("error decoding KAT: %s", err)
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}
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d.Write(in[:kat.Length/8])
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out := make([]byte, len(kat.Digest)/2)
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d.Read(out)
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got := strings.ToUpper(hex.EncodeToString(out))
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if got != kat.Digest {
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t.Errorf("function=%s, implementation=%s, length=%d N:%s\n S:%s\nmessage:\n %s \ngot:\n %s\nwanted:\n %s",
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algo, impl, kat.Length, kat.N, kat.S, kat.Message, got, kat.Digest)
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t.Logf("wanted %+v", kat)
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t.FailNow()
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}
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continue
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for algo, v := range testShakes {
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for _, kat := range katSet.Kats[algo] {
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N, err := hex.DecodeString(kat.N)
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if err != nil {
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t.Errorf("error decoding KAT: %s", err)
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}
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S, err := hex.DecodeString(kat.S)
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if err != nil {
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t.Errorf("error decoding KAT: %s", err)
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}
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d := v.constructor(N, S)
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in, err := hex.DecodeString(kat.Message)
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if err != nil {
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t.Errorf("error decoding KAT: %s", err)
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}
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d.Write(in[:kat.Length/8])
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out := make([]byte, len(kat.Digest)/2)
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d.Read(out)
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got := strings.ToUpper(hex.EncodeToString(out))
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if got != kat.Digest {
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t.Errorf("function=%s, length=%d N:%s\n S:%s\nmessage:\n %s \ngot:\n %s\nwanted:\n %s",
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algo, kat.Length, kat.N, kat.S, kat.Message, got, kat.Digest)
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t.Logf("wanted %+v", kat)
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t.FailNow()
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}
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continue
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}
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})
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}
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}
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// TestKeccak does a basic test of the non-standardized Keccak hash functions.
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@ -158,37 +140,35 @@ func TestKeccak(t *testing.T) {
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// TestUnalignedWrite tests that writing data in an arbitrary pattern with
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// small input buffers.
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func TestUnalignedWrite(t *testing.T) {
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testUnalignedAndGeneric(t, func(impl string) {
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buf := sequentialBytes(0x10000)
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buf := sequentialBytes(0x10000)
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// Same for SHAKE
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for alg, df := range testShakes {
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want := make([]byte, 16)
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got := make([]byte, 16)
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d := df.constructor([]byte(df.defAlgoName), []byte(df.defCustomStr))
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// Same for SHAKE
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for alg, df := range testShakes {
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want := make([]byte, 16)
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got := make([]byte, 16)
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d := df.constructor([]byte(df.defAlgoName), []byte(df.defCustomStr))
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d.Reset()
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d.Write(buf)
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d.Read(want)
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d.Reset()
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for i := 0; i < len(buf); {
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// Cycle through offsets which make a 137 byte sequence.
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// Because 137 is prime this sequence should exercise all corner cases.
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offsets := [17]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1}
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for _, j := range offsets {
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if v := len(buf) - i; v < j {
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j = v
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}
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d.Write(buf[i : i+j])
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i += j
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d.Reset()
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d.Write(buf)
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d.Read(want)
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d.Reset()
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for i := 0; i < len(buf); {
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// Cycle through offsets which make a 137 byte sequence.
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// Because 137 is prime this sequence should exercise all corner cases.
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offsets := [17]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1}
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for _, j := range offsets {
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if v := len(buf) - i; v < j {
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j = v
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}
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}
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d.Read(got)
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if !bytes.Equal(got, want) {
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t.Errorf("Unaligned writes, implementation=%s, alg=%s\ngot %q, want %q", impl, alg, got, want)
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d.Write(buf[i : i+j])
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i += j
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}
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}
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})
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d.Read(got)
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if !bytes.Equal(got, want) {
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t.Errorf("Unaligned writes, alg=%s\ngot %q, want %q", alg, got, want)
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}
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}
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}
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/* TODO: To redesign those tests and unlock
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@ -231,26 +211,24 @@ func TestAppendNoRealloc(t *testing.T) {
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// TestSqueezing checks that squeezing the full output a single time produces
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// the same output as repeatedly squeezing the instance.
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func TestSqueezing(t *testing.T) {
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testUnalignedAndGeneric(t, func(impl string) {
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for algo, v := range testShakes {
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d0 := v.constructor([]byte(v.defAlgoName), []byte(v.defCustomStr))
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d0.Write([]byte(testString))
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ref := make([]byte, 32)
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d0.Read(ref)
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for algo, v := range testShakes {
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d0 := v.constructor([]byte(v.defAlgoName), []byte(v.defCustomStr))
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d0.Write([]byte(testString))
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ref := make([]byte, 32)
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d0.Read(ref)
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d1 := v.constructor([]byte(v.defAlgoName), []byte(v.defCustomStr))
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d1.Write([]byte(testString))
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var multiple []byte
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for range ref {
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one := make([]byte, 1)
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d1.Read(one)
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multiple = append(multiple, one...)
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}
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if !bytes.Equal(ref, multiple) {
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t.Errorf("%s (%s): squeezing %d bytes one at a time failed", algo, impl, len(ref))
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}
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d1 := v.constructor([]byte(v.defAlgoName), []byte(v.defCustomStr))
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d1.Write([]byte(testString))
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var multiple []byte
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for range ref {
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one := make([]byte, 1)
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d1.Read(one)
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multiple = append(multiple, one...)
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}
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})
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if !bytes.Equal(ref, multiple) {
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t.Errorf("%s : squeezing %d bytes one at a time failed", algo, len(ref))
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}
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}
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}
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// sequentialBytes produces a buffer of size consecutive bytes 0x00, 0x01, ..., used for testing.
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@ -2,6 +2,8 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !amd64,!386,!ppc64le
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package shake
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import "encoding/binary"
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@ -9,7 +11,7 @@ import "encoding/binary"
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// xorInGeneric xors the bytes in buf into the state; it
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// makes no non-portable assumptions about memory layout
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// or alignment.
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func xorInGeneric(d *state, buf []byte) {
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func xorIn(d *state, buf []byte) {
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n := len(buf) / 8
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for i := 0; i < n; i++ {
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@ -20,11 +22,9 @@ func xorInGeneric(d *state, buf []byte) {
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}
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// copyOutGeneric copies ulint64s to a byte buffer.
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func copyOutGeneric(d *state, b []byte) {
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func copyOut(d *state, b []byte) {
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for i := 0; len(b) >= 8; i++ {
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binary.LittleEndian.PutUint64(b, d.a[i])
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b = b[8:]
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}
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}
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const xorImplementationGeneric = "generic"
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@ -2,14 +2,14 @@
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build amd64 arm64 386 ppc64le
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// +build amd64 386 ppc64le
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// +build !appengine
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package shake
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import "unsafe"
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func xorInUnaligned(d *state, buf []byte) {
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func xorIn(d *state, buf []byte) {
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bw := (*[maxRate / 8]uint64)(unsafe.Pointer(&buf[0]))
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n := len(buf)
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if n >= 72 {
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@ -45,9 +45,7 @@ func xorInUnaligned(d *state, buf []byte) {
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}
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}
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func copyOutUnaligned(d *state, buf []byte) {
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func copyOut(d *state, buf []byte) {
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ab := (*[maxRate]uint8)(unsafe.Pointer(&d.a[0]))
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copy(buf, ab[:])
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}
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const xorImplementationUnaligned = "unaligned"
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