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woodpecker/vendor/github.com/lucas-clemente/quic-go/crypto/chacha20poly1305_aead_test.go
2017-07-24 19:15:25 -04:00

72 lines
2.0 KiB
Go

// +build ignore
package crypto
import (
"crypto/rand"
. "github.com/onsi/ginkgo"
. "github.com/onsi/gomega"
)
var _ = Describe("Chacha20poly1305", func() {
var (
alice, bob AEAD
keyAlice, keyBob, ivAlice, ivBob []byte
)
BeforeEach(func() {
keyAlice = make([]byte, 32)
keyBob = make([]byte, 32)
ivAlice = make([]byte, 4)
ivBob = make([]byte, 4)
rand.Reader.Read(keyAlice)
rand.Reader.Read(keyBob)
rand.Reader.Read(ivAlice)
rand.Reader.Read(ivBob)
var err error
alice, err = NewAEADChacha20Poly1305(keyBob, keyAlice, ivBob, ivAlice)
Expect(err).ToNot(HaveOccurred())
bob, err = NewAEADChacha20Poly1305(keyAlice, keyBob, ivAlice, ivBob)
Expect(err).ToNot(HaveOccurred())
})
It("seals and opens", func() {
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(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(nil, []byte("foobar"), 42, []byte("aad"))
Expect(b).To(HaveLen(6 + 12))
})
It("fails with wrong aad", func() {
b := alice.Seal(nil, []byte("foobar"), 42, []byte("aad"))
_, err := bob.Open(nil, b, 42, []byte("aad2"))
Expect(err).To(HaveOccurred())
})
It("rejects wrong key and iv sizes", func() {
var err error
e := "chacha20poly1305: expected 32-byte keys and 4-byte IVs"
_, err = NewAEADChacha20Poly1305(keyBob[1:], keyAlice, ivBob, ivAlice)
Expect(err).To(MatchError(e))
_, err = NewAEADChacha20Poly1305(keyBob, keyAlice[1:], ivBob, ivAlice)
Expect(err).To(MatchError(e))
_, err = NewAEADChacha20Poly1305(keyBob, keyAlice, ivBob[1:], ivAlice)
Expect(err).To(MatchError(e))
_, err = NewAEADChacha20Poly1305(keyBob, keyAlice, ivBob, ivAlice[1:])
Expect(err).To(MatchError(e))
})
})