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package crypto
import (
"crypto/ed25519"
"crypto/x509"
"encoding/pem"
"fmt"
"strings"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestEd25519GenerateKey(t *testing.T) {
key, err := Ed25519GenerateKey()
require.NoError(t, err)
assert.True(t, strings.HasPrefix(string(key),
"-----BEGIN PRIVATE KEY-----"))
assert.True(t, strings.HasSuffix(string(key),
"-----END PRIVATE KEY-----\n"))
}
func TestEd25519DerivePublicKey(t *testing.T) {
_, err := Ed25519DerivePublicKey(nil)
require.Error(t, err)
_, err = Ed25519DerivePublicKey([]byte(`-----BEGIN FOO-----
-----END FOO-----`))
require.Error(t, err)
priv, err := Ed25519GenerateKey()
require.NoError(t, err)
pub, err := Ed25519DerivePublicKey(priv)
require.NoError(t, err)
block, _ := pem.Decode(pub)
assert.NotNil(t, block)
secret, err := ed25519DecodeFromPEM(priv)
require.NoError(t, err)
p, err := x509.ParsePKIXPublicKey(block.Bytes)
require.NoError(t, err)
pubKey, ok := p.(ed25519.PublicKey)
assert.True(t, ok)
assert.Equal(t, fmt.Sprintf("%x", secret.Public()), fmt.Sprintf("%x", p))
msg := []byte("ed25519")
sig := ed25519.Sign(secret, msg) // Panics
assert.True(t, ed25519.Verify(pubKey, msg, sig))
}
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