package main import ( "encoding/hex" "golang.org/x/crypto/blake2s" "testing" ) type KDFTest struct { key string input string t0 string t1 string t2 string } func assertEquals(t *testing.T, a string, b string) { if a != b { t.Fatal("expected", a, "=", b) } } func TestKDF(t *testing.T) { tests := []KDFTest{ { key: "746573742d6b6579", input: "746573742d696e707574", t0: "6f0e5ad38daba1bea8a0d213688736f19763239305e0f58aba697f9ffc41c633", t1: "df1194df20802a4fe594cde27e92991c8cae66c366e8106aaa937a55fa371e8a", t2: "fac6e2745a325f5dc5d11a5b165aad08b0ada28e7b4e666b7c077934a4d76c24", }, { key: "776972656775617264", input: "776972656775617264", t0: "491d43bbfdaa8750aaf535e334ecbfe5129967cd64635101c566d4caefda96e8", t1: "1e71a379baefd8a79aa4662212fcafe19a23e2b609a3db7d6bcba8f560e3d25f", t2: "31e1ae48bddfbe5de38f295e5452b1909a1b4e38e183926af3780b0c1e1f0160", }, { key: "", input: "", t0: "8387b46bf43eccfcf349552a095d8315c4055beb90208fb1be23b894bc2ed5d0", t1: "58a0e5f6faefccf4807bff1f05fa8a9217945762040bcec2f4b4a62bdfe0e86e", t2: "0ce6ea98ec548f8e281e93e32db65621c45eb18dc6f0a7ad94178610a2f7338e", }, } var t0, t1, t2 [blake2s.Size]byte for _, test := range tests { key, _ := hex.DecodeString(test.key) input, _ := hex.DecodeString(test.input) KDF3(&t0, &t1, &t2, key, input) t0s := hex.EncodeToString(t0[:]) t1s := hex.EncodeToString(t1[:]) t2s := hex.EncodeToString(t2[:]) assertEquals(t, t0s, test.t0) assertEquals(t, t1s, test.t1) assertEquals(t, t2s, test.t2) } for _, test := range tests { key, _ := hex.DecodeString(test.key) input, _ := hex.DecodeString(test.input) KDF2(&t0, &t1, key, input) t0s := hex.EncodeToString(t0[:]) t1s := hex.EncodeToString(t1[:]) assertEquals(t, t0s, test.t0) assertEquals(t, t1s, test.t1) } for _, test := range tests { key, _ := hex.DecodeString(test.key) input, _ := hex.DecodeString(test.input) KDF1(&t0, key, input) t0s := hex.EncodeToString(t0[:]) assertEquals(t, t0s, test.t0) } }