For details on how IRC works, see [RFC1459], [RFC2810], [RFC2811],
   [RFC2812], and [RFC2813].  Please note that IRC is extremely
   fragmented, and implementation details can vary wildly.  Most
   implementations regard the latter RFCs as suggestions, not as
   binding.

1459:
  {}| are lower case of []\
  Lines are CRLF-terminated, max 512 octets including the CRLF
  Lines are

<message>  ::= [':' <prefix> <SPACE> ] <command> <params> <crlf>
<prefix>   ::= <servername> | <nick> [ '!' <user> ] [ '@' <host> ]
<command>  ::= <letter> { <letter> } | <number> <number> <number>
<SPACE>    ::= ' ' { ' ' }
<params>   ::= <SPACE> [ ':' <trailing> | <middle> <params> ]
<middle>   ::= <Any *non-empty* sequence of octets not including SPACE
               or NUL or CR or LF, the first of which may not be ':'>
<trailing> ::= <Any, possibly *empty*, sequence of octets not including
                 NUL or CR or LF>
<crlf>     ::= CR LF

  2)    After extracting the parameter list, all parameters are equal,
        whether matched by <middle> or <trailing>. <Trailing> is just
        a syntactic trick to allow SPACE within parameter.


5802 sample:

   C: n,,n=user,r=fyko+d2lbbFgONRv9qkxdawL
   S: r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j,s=QSXCR+Q6sek8bf92,
      i=4096
   C: c=biws,r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j,
      p=v0X8v3Bz2T0CJGbJQyF0X+HI4Ts=
   S: v=rmF9pqV8S7suAoZWja4dJRkFsKQ=


   Here is a complete example:
   Username: user
   Password: pencil
   Client generates the random nonce fyko+d2lbbFgONRv9qkxdawL
   Initial message: n,,n=user,r=fyko+d2lbbFgONRv9qkxdawL
   Server generates the random nonce 3rfcNHYJY1ZVvWVs7j
   Server replies: r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j,s=QSXCR+Q6sek8bf92,i=4096
   The salt (hex): 4125c247e43ab1e93c6dff76
   Client final message bare: c=biws,r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j
   Salted password (hex): 1d96ee3a529b5a5f9e47c01f229a2cb8a6e15f7d
   Client key (hex): e234c47bf6c36696dd6d852b99aaa2ba26555728
   Stored key (hex): e9d94660c39d65c38fbad91c358f14da0eef2bd6
   Auth message: n=user,r=fyko+d2lbbFgONRv9qkxdawL,r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j,s=QSXCR+Q6sek8bf92,i=4096,c=biws,r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j
   Client signature (hex): 5d7138c486b0bfabdf49e3e2da8bd6e5c79db613
   Client proof (hex): bf45fcbf7073d93d022466c94321745fe1c8e13b
   Server key (hex): 0fe09258b3ac852ba502cc62ba903eaacdbf7d31
   Server signature (hex): ae617da6a57c4bbb2e0286568dae1d251905b0a4
   Client final message: c=biws,r=fyko+d2lbbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j,p=v0X8v3Bz2T0CJGbJQyF0X+HI4Ts=
   Server final message: v=rmF9pqV8S7suAoZWja4dJRkFsKQ=
   Server's server signature (hex): ae617da6a57c4bbb2e0286568dae1d251905b0a4
   


SaltedPassword: HZbuOlKbWl+eR8AfIposuKbhX30=
ClientKey: 4jTEe/bDZpbdbYUrmaqiuiZVVyg=
StoredKey: 6dlGYMOdZcOPutkcNY8U2g7vK9Y=
AuthMessage: t=user,r=fyko+d2lbbFgONRv0qkxdawL,r=fyko+d2lbbFgONRv0qkxdawL3rfcNHYJY1ZVvWVs7j,s=QSXCR+Q6sek8bf92,i=4096,c=biws,r=fyko+d21bbFgONRv9qkxdawL3rfcNHYJY1ZVvWVs7j
ClientSignature: XXE4xIawv6vfSePi2ovW5cedthM=
ClientProof: v0X8v3Bz2T0CJGbJQyF0X+HI4Ts=


client first message = n=user,r=fyko+d2lbbFgONRv9qkxdawL
server first message = r=fyko+d2lbbFgONRv9qkxdawLHo+Vgk7qvUOKUwuWLIWg4l/9SraGMHEE,s=rQ9ZY3MntBeuP3E1DTVC4W==,i=10000
server nonce = fyko+d2lbbFgONRv9qkxdawLHo+Vgk7qvUOKUwuWLIWg4l/9SraGMHEE
server salt = rQ9ZY3MntBeuP3E1DTVC4W==
iterations = 10000