func TestGetPrivateKeyAndSignWithExistingKey(t *testing.T) {
key, err := trustmanager.GenerateECDSAKey(rand.Reader)
assert.NoError(t, err, "could not generate key")
store := trustmanager.NewKeyMemoryStore(ret)
err = store.AddKey(key.ID(), "timestamp", key)
assert.NoError(t, err, "could not add key to store")
signer := setUpSigner(t, store)
privKey, _, err := signer.GetPrivateKey(key.ID())
assert.NoError(t, err)
assert.NotNil(t, privKey)
msg := []byte("message!")
sig, err := privKey.Sign(rand.Reader, msg, nil)
assert.NoError(t, err)
err = signed.Verifiers[data.ECDSASignature].Verify(
data.PublicKeyFromPrivate(key), sig, msg)
assert.NoError(t, err)
}
func TestGetPrivateKeyIfNoKey(t *testing.T) {
signer := setUpSigner(t, trustmanager.NewKeyMemoryStore(ret))
privKey, _, err := signer.GetPrivateKey("bogus key ID")
assert.NoError(t, err)
assert.Nil(t, privKey)
}