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internal/radix51: test field encoding roundtrip with fixed vectors

This commit is contained in:
George Tankersley 2019-03-31 01:13:56 +00:00 committed by George Tankersley
parent 1e528602b8
commit 71368c02ff
1 changed files with 22 additions and 0 deletions
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22
internal/radix51/fe_test.go
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@ -154,6 +154,28 @@ func TestFromBytesRoundTrip(t *testing.T) {
if err := quick.Check(f2, nil); err != nil {
t.Errorf("failed FE->bytes->FE round-trip: %v", err)
}
// Check some fixed vectors from dalek
type feRTTest struct {
fe FieldElement
b []byte
}
var tests = []feRTTest{
{
fe: FieldElement([5]uint64{358744748052810, 1691584618240980, 977650209285361, 1429865912637724, 560044844278676}),
b: []byte{74, 209, 69, 197, 70, 70, 161, 222, 56, 226, 229, 19, 112, 60, 25, 92, 187, 74, 222, 56, 50, 153, 51, 233, 40, 74, 57, 6, 160, 185, 213, 31},
},
{
fe: FieldElement([5]uint64{84926274344903, 473620666599931, 365590438845504, 1028470286882429, 2146499180330972}),
b: []byte{199, 23, 106, 112, 61, 77, 216, 79, 186, 60, 11, 118, 13, 16, 103, 15, 42, 32, 83, 250, 44, 57, 204, 198, 78, 199, 253, 119, 146, 172, 3, 122},
},
}
for _, tt := range tests {
if !bytes.Equal(tt.fe.Bytes(nil), tt.b) || new(FieldElement).FromBytes(tt.b).Equal(&tt.fe) != 1 {
t.Errorf("Failed fixed roundtrip: %v", tt)
}
}
}
func swapEndianness(buf []byte) []byte {