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update AEADs to allow in-place encryption and decryption

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ref #217
This commit is contained in:
Lucas Clemente
2016-07-26 14:51:19 +02:00
parent eb9c23096d
commit d5255a4075
13 changed files with 99 additions and 78 deletions
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14
crypto/chacha20poly1305_aead_test.go
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@@ -30,27 +30,27 @@ var _ = Describe("Chacha20poly1305", func() {
})
It("seals and opens", func() {
b := alice.Seal(42, []byte("aad"), []byte("foobar"))
text, err := bob.Open(42, []byte("aad"), b)
b := alice.Seal(nil, []byte("foobar"), 42, []byte("aad"))
text, err := bob.Open(nil, b, 42, []byte("aad"))
Expect(err).ToNot(HaveOccurred())
Expect(text).To(Equal([]byte("foobar")))
})
It("seals and opens reverse", func() {
b := bob.Seal(42, []byte("aad"), []byte("foobar"))
text, err := alice.Open(42, []byte("aad"), b)
b := bob.Seal(nil, []byte("foobar"), 42, []byte("aad"))
text, err := alice.Open(nil, b, 42, []byte("aad"))
Expect(err).ToNot(HaveOccurred())
Expect(text).To(Equal([]byte("foobar")))
})
It("has the proper length", func() {
b := bob.Seal(42, []byte("aad"), []byte("foobar"))
b := bob.Seal(nil, []byte("foobar"), 42, []byte("aad"))
Expect(b).To(HaveLen(6 + 12))
})
It("fails with wrong aad", func() {
b := alice.Seal(42, []byte("aad"), []byte("foobar"))
_, err := bob.Open(42, []byte("aad2"), b)
b := alice.Seal(nil, []byte("foobar"), 42, []byte("aad"))
_, err := bob.Open(nil, b, 42, []byte("aad2"))
Expect(err).To(HaveOccurred())
})