| 111 | } |
| 112 | |
| 113 | func (alg *cryptFernet) parseConf(conf map[string]string) error { |
| 114 | keyStr, ok := conf["Key"] |
| 115 | if !ok { |
| 116 | return fmt.Errorf(`can't find "Key" conf for Fernet algorithm`) |
| 117 | } |
| 118 | |
| 119 | key, err := fernet.DecodeKey(keyStr) |
| 120 | if err != nil { |
| 121 | return err |
| 122 | } |
| 123 | alg.key = key |
| 124 | |
| 125 | ttl := 0 |
| 126 | ttlStr, ok := conf["TTL"] |
| 127 | if ok { |
| 128 | ttl, err = strconv.Atoi(ttlStr) |
| 129 | if err != nil { |
| 130 | return fmt.Errorf(`can't parse "TTL" as seconds: %v`, err) |
| 131 | } |
| 132 | } |
| 133 | alg.ttl = time.Duration(ttl) * time.Second |
| 134 | |
| 135 | return err |
| 136 | } |
| 137 | |
| 138 | func (alg *cryptFernet) encrypt(msg []byte) ([]byte, error) { |
| 139 | return fernet.EncryptAndSign(msg, alg.key) |