wisp_prefix (Prefix for encrypted messages) string &**&
wisp_curve (Curve for ECDH) string prime256v1
wisp_cipher (Cipher for messages) string aes256
wisp_digest (Digest for shared secrets) string sha256
wisp_iv_size (Size in bytes for initialization vector nonce) int 8
wisp_whisper (Whisper command) string msg
wisp_hide_sent (Hide "Message sent." server messages) bool true