forked from TrueCloudLab/neoneo-go
f0fbe9f6c9
As NEO uses P256 we can use standard crypto/elliptic library for almost everything, the only exception being decompression of the Y coordinate. For some reason the standard library only supports uncompressed format in its Marshal()/Unmarshal() functions. elliptic.P256() is known to have constant-time implementation, so it fixes #245 (and the decompression using big.Int operates on public key, so nobody really cares about that part being constant-time). New decompress function is inspired by https://stackoverflow.com/questions/46283760, even though the previous one really did the same thing just in a little less obvious way.
50 lines
1.2 KiB
Go
50 lines
1.2 KiB
Go
package keys
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import (
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"bytes"
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"encoding/hex"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestEncodeDecodeInfinity(t *testing.T) {
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key := &PublicKey{}
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buf := new(bytes.Buffer)
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assert.Nil(t, key.EncodeBinary(buf))
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assert.Equal(t, 1, buf.Len())
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keyDecode := &PublicKey{}
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assert.Nil(t, keyDecode.DecodeBinary(buf))
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assert.Equal(t, []byte{0x00}, keyDecode.Bytes())
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}
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func TestEncodeDecodePublicKey(t *testing.T) {
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for i := 0; i < 4; i++ {
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k, err := NewPrivateKey()
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assert.Nil(t, err)
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p, err := k.PublicKey()
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assert.Nil(t, err)
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buf := new(bytes.Buffer)
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assert.Nil(t, p.EncodeBinary(buf))
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pDecode := &PublicKey{}
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assert.Nil(t, pDecode.DecodeBinary(buf))
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assert.Equal(t, p.X, pDecode.X)
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}
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}
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func TestDecodeFromString(t *testing.T) {
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str := "03b209fd4f53a7170ea4444e0cb0a6bb6a53c2bd016926989cf85f9b0fba17a70c"
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pubKey, err := NewPublicKeyFromString(str)
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assert.Nil(t, err)
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assert.Equal(t, str, hex.EncodeToString(pubKey.Bytes()))
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}
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func TestPubkeyToAddress(t *testing.T) {
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pubKey, err := NewPublicKeyFromString("031ee4e73a17d8f76dc02532e2620bcb12425b33c0c9f9694cc2caa8226b68cad4")
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assert.Nil(t, err)
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actual := pubKey.Address()
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expected := "AUpGsNCHzSimeMRVPQfhwrVdiUp8Q2N2Qx"
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assert.Equal(t, expected, actual)
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}
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