func makePreKeyBundle(tel string, deviceID uint32) (*axolotl.PreKeyBundle, error) {
pkr, err := getPreKeys(tel, strconv.Itoa(int(deviceID)))
if err != nil {
return nil, err
}
if len(pkr.Devices) != 1 {
return nil, fmt.Errorf("no prekeys for contact %s, device %d\n", tel, deviceID)
}
d := pkr.Devices[0]
if d.PreKey == nil {
return nil, fmt.Errorf("no prekey for contact %s, device %d\n", tel, deviceID)
}
decPK, err := decodeKey(d.PreKey.PublicKey)
if err != nil {
return nil, err
}
if d.SignedPreKey == nil {
return nil, fmt.Errorf("no signed prekey for contact %s, device %d\n", tel, deviceID)
}
decSPK, err := decodeKey(d.SignedPreKey.PublicKey)
if err != nil {
return nil, err
}
decSig, err := decodeSignature(d.SignedPreKey.Signature)
if err != nil {
return nil, err
}
decIK, err := decodeKey(pkr.IdentityKey)
if err != nil {
return nil, err
}
pkb, err := axolotl.NewPreKeyBundle(
d.RegistrationID, d.DeviceID, d.PreKey.ID,
axolotl.NewECPublicKey(decPK), int32(d.SignedPreKey.ID), axolotl.NewECPublicKey(decSPK),
decSig, axolotl.NewIdentityKey(decIK))
if err != nil {
return nil, err
}
return pkb, nil
}
func makePreKeyBundle(tel string) (*axolotl.PreKeyBundle, error) {
pkr, err := getPreKeys(tel)
if err != nil {
return nil, err
}
ndev := len(pkr.Devices)
pkbs := make([]*axolotl.PreKeyBundle, ndev)
for i, d := range pkr.Devices {
if d.PreKey == nil {
return nil, fmt.Errorf("No prekey for contact %s, device %d\n", tel, i)
}
decPK, err := decodeKey(d.PreKey.PublicKey)
if err != nil {
return nil, err
}
decSPK, err := decodeKey(d.SignedPreKey.PublicKey)
if err != nil {
return nil, err
}
decSig, err := decodeSignature(d.SignedPreKey.Signature)
if err != nil {
return nil, err
}
decIK, err := decodeKey(pkr.IdentityKey)
if err != nil {
return nil, err
}
pkbs[i], err = axolotl.NewPreKeyBundle(
d.RegistrationID, d.DeviceID, d.PreKey.ID,
axolotl.NewECPublicKey(decPK), int32(d.SignedPreKey.ID), axolotl.NewECPublicKey(decSPK),
decSig, axolotl.NewIdentityKey(decIK))
if err != nil {
return nil, err
}
}
return pkbs[0], nil
}