mirror of https://github.com/ginuerzh/gost
rui.zheng
9 years ago
8 changed files with 111 additions and 24 deletions
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// +build ignore
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package crypto |
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import ( |
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"crypto/rand" |
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. "github.com/onsi/ginkgo" |
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. "github.com/onsi/gomega" |
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) |
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var _ = Describe("Chacha20poly1305", func() { |
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var ( |
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alice, bob AEAD |
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keyAlice, keyBob, ivAlice, ivBob []byte |
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) |
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BeforeEach(func() { |
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keyAlice = make([]byte, 32) |
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keyBob = make([]byte, 32) |
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ivAlice = make([]byte, 4) |
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ivBob = make([]byte, 4) |
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rand.Reader.Read(keyAlice) |
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rand.Reader.Read(keyBob) |
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rand.Reader.Read(ivAlice) |
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rand.Reader.Read(ivBob) |
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var err error |
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alice, err = NewAEADChacha20Poly1305(keyBob, keyAlice, ivBob, ivAlice) |
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Expect(err).ToNot(HaveOccurred()) |
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bob, err = NewAEADChacha20Poly1305(keyAlice, keyBob, ivAlice, ivBob) |
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Expect(err).ToNot(HaveOccurred()) |
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}) |
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It("seals and opens", func() { |
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b := alice.Seal(nil, []byte("foobar"), 42, []byte("aad")) |
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text, err := bob.Open(nil, b, 42, []byte("aad")) |
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Expect(err).ToNot(HaveOccurred()) |
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Expect(text).To(Equal([]byte("foobar"))) |
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}) |
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It("seals and opens reverse", func() { |
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b := bob.Seal(nil, []byte("foobar"), 42, []byte("aad")) |
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text, err := alice.Open(nil, b, 42, []byte("aad")) |
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Expect(err).ToNot(HaveOccurred()) |
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Expect(text).To(Equal([]byte("foobar"))) |
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}) |
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It("has the proper length", func() { |
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b := bob.Seal(nil, []byte("foobar"), 42, []byte("aad")) |
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Expect(b).To(HaveLen(6 + 12)) |
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}) |
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It("fails with wrong aad", func() { |
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b := alice.Seal(nil, []byte("foobar"), 42, []byte("aad")) |
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_, err := bob.Open(nil, b, 42, []byte("aad2")) |
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Expect(err).To(HaveOccurred()) |
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}) |
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It("rejects wrong key and iv sizes", func() { |
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var err error |
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e := "chacha20poly1305: expected 32-byte keys and 4-byte IVs" |
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_, err = NewAEADChacha20Poly1305(keyBob[1:], keyAlice, ivBob, ivAlice) |
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Expect(err).To(MatchError(e)) |
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_, err = NewAEADChacha20Poly1305(keyBob, keyAlice[1:], ivBob, ivAlice) |
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Expect(err).To(MatchError(e)) |
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_, err = NewAEADChacha20Poly1305(keyBob, keyAlice, ivBob[1:], ivAlice) |
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Expect(err).To(MatchError(e)) |
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_, err = NewAEADChacha20Poly1305(keyBob, keyAlice, ivBob, ivAlice[1:]) |
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Expect(err).To(MatchError(e)) |
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}) |
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}) |
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@ -0,0 +1,8 @@ |
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// Copyright 2012 The Go Authors. All rights reserved.
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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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// This code was translated into a form compatible with 6a from the public
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// domain sources in SUPERCOP: http://bench.cr.yp.to/supercop.html
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#define REDMASK51 0x0007FFFFFFFFFFFF |
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