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// minclient.go - mixnet client
// Copyright (C) 2017 Yawning Angel.
// Copyright (C) 2017 Ruben Pollan.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// GNU Affero General Public License for more details.
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <>.
// Package client provides a mixnet client library
package client
import (
npki ""
cpki ""
// KatzenClient is katzenpost object
type KatzenClient struct {
log *log.Backend
pki cpki.Client
// LogConfig keeps the configuration of the loger
type LogConfig struct {
File string
Level string
Enabled bool
// NewClient configures the pki to be used
func NewKatzenClient(pkiAddress, pkiKey string, logConfig *LogConfig) (*KatzenClient, error) {
var pubKey eddsa.PublicKey
err := pubKey.FromString(pkiKey)
if err != nil {
return nil, err
logLevel := "NOTICE"
if logConfig.Level != "" {
logLevel = logConfig.Level
client := new(KatzenClient)
client.log, err = log.New(logConfig.File, logLevel, !logConfig.Enabled)
if err != nil {
return nil, err
pkiCfg := npki.Config{
LogBackend: client.log,
Address: pkiAddress,
PublicKey: &pubKey,
client.pki, err = npki.New(&pkiCfg)
return client, err
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