Provided by: mixmaster_3.0.0-7build1_amd64 bug

NAME

       mixmaster - anonymous remailer software

SYNOPSIS

       mixmaster  [-hpmdSvT]  [-t  user@host]  [-g  newsgroup]  [-s  subject]  [-a  filename] [-l
       mix1,mix2,mix3,...]  [-c num] [user@host] [filename]

       mixmaster [-f[rfg] filename]

       mixmaster [-RGKSP]

DESCRIPTION

       Mixmaster is an anonymous remailer. Remailers provide protection against traffic  analysis
       and allow sending mail anonymously or pseudonymously.

       In  the  non-interactive mode, Mixmaster reads a message from its standard input or from a
       file.  Destination address and input file can be specified in the  command  line.   If  no
       address  is  given  in  the  command line, the input file is expected to contain a message
       complete with mail headers.

OPTIONS

       -h, --help
              Print a summary of command line options.

       -V, --version
              Print version information.

       --about
              Print authorship and copyright information.

       --config=filename
              Read configuration from an alternate file.

       -t, --to=user@host
              Add the destination address(es) to the message header. The input file contains  the
              message body without headers.

       -g, --post-to=newsgroup
              Add  the  newsgroup(s)  to  the message header. The input file contains the message
              body without headers.

       -p, --post
              Post the message to Usenet.

       -m, --mail
              Send the message as electronic mail. (This is the default.)

       -s, --subject=subject
              Add the subject to the message header.

       --header='Header: text'
              Add the header line to the message header.

       -a, --attachment=filename
              Attach file to the message.

       --encrypt
              Encrypt the message using the OpenPGP format.

       --sign Sign the message using the OpenPGP format.

       -l, --chain=mix1,mix2,mix3,...
              Use this remailer chain to send the message. Alternatively, the input  message  may
              contain  a  pseudo-header  Chain:.   If no chain is specified, Mixmaster will use a
              chain of four random remailers.

       -T, --type-list
              Display the contents of the type2.list file.

       -c, --copies=num
              Send num copies of the message to increase reliability.

       -d, --dummy
              Generate a dummy message as protection against traffic analysis.

       -S, --send
              Send the message(s) from the pool.

       -v, --verbose
              Output informational messages.

       -f [file]
              Read a mail folder or news article. This function requires ncurses support.

       -fr [file]
              Reply to a message.

       -ff [file]
              Post a follow-up to a message.

       -fg [file]
              Send a group reply to a message.

       --update-pinger-list
              Download an updated all pingers list file.

       --update-stats[=source]
              Download updated stats.

   Remailer options:
       --config=filename
              Read configuration from an alternate file.

       -R, --read-mail
              Read a remailer message from standard input and store it in the pool.

       -I, --store-mail
              Read a remailer message from standard input  and  store  it  in  the  pool  without
              decrypting  it  immediately. It will be processed the next time Mixmaster processes
              the queue (called with -M or in daemon mode).

       -P, --pop-mail
              Read mail from the POP3 servers listed in pop3.cfg.

       -M, --remailer
              Check if it is time to perform the regular remailer actions: Send messages from the
              pool, get mail from POP3 servers and keep the internal files up-to-date.

       -D, --daemon
              Detach  from  the  console  and  process the pool, get mail and update the internal
              files at regular intervals.

       --no-detach
              Run as daemon but do not detach from the  terminal  (This  option  is  only  useful
              together with --daemon).

       -G, --generate-key
              Generate a new remailer key.

       -K, --update-keys
              Generate remailer keys if necessary.

       -S, --send
              Force sending the message(s) from the pool.

       --install-svc
              Install the Mixmaster Service on Win32.

       --remove-svc
              Remove the Mixmaster Service on Win32.

       --run-svc
              Run the Mixmaster Service on Win32.

       --redirect
              Read  a  Mixmaster  packet  from  stdin  and  route  it  through a chain given with
              --no-ask-passphrase Do not ask for the remailer passphrase even if we don't have it
              compiled in, don't have it in the config file, don't have it in the environment and
              we are on a tty.  --chain.  Note that this may corrupt the packet if there  is  not
              enough  space in the headers (that is, if there are more than 20 hops total).  This
              function is not normally needed but may come in handy in certain cases.

CONFIGURATION

       Mixmaster reads its configuration from the file mix.cfg in  its  working  directory.   The
       configuration file consists of lines of the type

       VARIABLE values

       and  of  comments,  which begin with a # character.  The variables have reasonable default
       values, but it is useful to create a configuration file  using  the  Install  script  when
       setting up a remailer.

       All  configuration  variables  can be overridden from the command line, e.g.  mixmaster -S
       --POOLSIZE=0 --RATE=100 will send all messages currently in the message pool.

   Client configuration:
       ADDRESS
              Your address for sending non-anonymous messages.

       NAME   Your real name (used for sending non-anonymous messages).

       MAILtoNEWS
              Address of a mail-to-news gateway. Default: mail2news@nym.alias.net.

       CHAIN  Default chain for anonymous messages to be sent.  CHAIN is a  comma-separated  list
              of  remailer  names  or  addresses.   A  *  represents  a random reliable remailer.
              Default: *,*,*,*.

       NUMCOPIES
              Number of redundant copies of an anonymous message to  be  sent,  unless  specified
              otherwise on the command line.  Default: 1.

       DISTANCE
              When  selecting  random  remailers, the chain will contain DISTANCE other remailers
              between two occurrences of the same remailer in the chain. Default: 2.

       MINREL Only select remailers with a reliability of at least MINREL%.  Default: 98.

       RELFINAL
              Only select a remailer with a reliability  of  at  least  RELFINAL%  as  the  final
              remailer. Default: 99.

       MAXLAT Only select remailers with a latency of at most MAXLAT.  Default: 36h.

       MINLAT Only select remailers with a latency of at least MINLAT.  Default: 5m.

       PGPPUBRING
              Path  to  your public PGP key ring. Default: ~/.pgp/pubring.pkr.  (Windows default:
              PGP registry value.)

       PGPSECRING
              Path to your secret PGP key ring. Default: ~/.pgp/secring.skr.   (Windows  default:
              PGP registry value.)

       CLIENTAUTOFLUSH
              If  REMAIL  is  set  to n automatically flush the pool every time Mixmaster is run.
              Default: n.

       SENDMAIL
              Path to the sendmail(1) program. If set to  outfile,  Mixmaster  will  create  text
              files  named  out*.txt  in  the  pool  directory instead of sending mail.  Default:
              /usr/lib/sendmail -t.

       SMTPRELAY
              Name of SMTP relay. If set, mail will be delivered to  the  relay  rather  than  by
              sendmail(1).

       HELONAME
              Host name used in the SMTP dialogue.  Default: The ENVFROM host name or the current
              network name associated with the socket.

       SMTPUSERNAME
              Some  mail  servers  require  authentication  for  sending  mail.   This   is   the
              authenticated SMTP user name.  SMTPPASSWORD Password for authenticated SMTP.

       ENVFROM
              Envelope  from  address used in the SMTP dialogue. (When the client is used to send
              non-anonymous messages, ADDRESSS is used instead.)  Default: ANONADDR.

       ALLPINGERSURL
              URL    from     which     to     download     the     ALLPINGERSFILE.      Default:
              http://www.noreply.org/allpingers/allpingers.txt.

       WGET   Define the http protocol download tool. Default: wget.

   Remailer configuration:
       NEWS   Path to the news posting program, or address of a mail-to-news gateway. Default: no
              news posting.  (When  using  a  news  posting  program,  ORGANIZATION  contains  an
              Organization line for anonymous messages. Default: Anonymous Posting Service.)

       SENDANONMAIL
              Path  to a program for sending anonymous mail. Default: SENDMAIL.  SENDANONMAIL can
              be used to invoke an external mail filter for anonymized messages.

       SHORTNAME
              A short name for the remailer to be used in lists. Defaults to the host name.

       REMAILERADDR
              The remailer mail address.

       ANONADDR
              An address to be inserted  in  the  From:  line  of  anonymous  messages.  Default:
              REMAILERADDR.

       REMAILERNAME
              A  name  to  be  inserted  in  the From: line of remailer status messages. Default:
              Anonymous Remailer.

       ANONNAME
              A name to be inserted in the From: line of anonymous messages.  Default: Anonymous.

       COMPLAINTS
              An address for complaints to be sent to. Default: REMAILERADDR.

       ERRLOG Name of a file to log error messages, or stdout or stderr.  Default: stderr.  (When
              run from a tty, Mixmaster will always print a copy of error messages to stderr.)

       MAILBOX
              A  generic  mail folder for non-remailer messages that are not stored in any of the
              following folders.  If MAILBOX begins with a |, it specifies the path to a program.
              If it contains an @ sign, the message is forwarded to the given address (with an X-
              Loop: header to prevent mail loops). If it ends  with  a  /  it  is  treated  as  a
              Maildir,  otherwise  the  message  is appended to the given file name or written to
              standard output if MAILBOX is stdout.  Default: mbox.

       MAILABUSE
              Mail folder for messages sent to the COMPLAINTS address.  Default: MAILBOX.

       MAILBLOCK
              Mail folder for messages sent to the  remailer  address  with  a  DESTINATION-BLOCK
              line.  Default: MAILBOX.

       MAILUSAGE
              Mail folder for messages sent to the remailer address that do not contain any valid
              remailer commands. Default: /dev/null.

       MAILANON
              Mail folder for replies sent to the ANONADDR address.  Default: /dev/null.

       MAILERROR
              Mail folder for messages that cannot be decrypted or contain other errors. Default:
              /dev/null.

       MAILBOUNCE
              Mail folder for bounce messages. Default: MAILBOX.

       MAILIN If defined an additional mail folder where Mixmaster should read messages from when
              processing its pool. If it ends with a / it is treated as a  Maildir,  otherwise  a
              standard  mbox  format  file  is expected. All messages are removed from the folder
              after reading.  MAILIN is not set by default.  It is an incredibly bad idea to  set
              this the same as MAILBOX.

       VERBOSE
              If  VERBOSE is set to 0, Mixmaster will log error messages only. If it is set to 1,
              error messages and warnings  are  logged.  If  VERBOSE  is  set  to  2,  successful
              operation  is  logged as well.  If set to 3, a log file entry is created whenever a
              message enters or leaves the pool.  Default: 2.

       PASSPHRASE
              A passphrase used to protect the remailer secret keys from casual  attackers.  This
              setting  overrides  the  compile-time defined COMPILEDPASS which is now deprecated.
              This should not be the same as the client passphrase.

       EXTFLAGS
              Additional flags you want to set in the remailer's capabilities  string.   Defaults
              to the empty string, which means none.  Example: testing.

       PRECEDENCE
              Sets  the  header Precedence: to this value for all outgoing mail.  Defaults to the
              empty string, which means no such header is added.  Example: anon.  If you use this
              you might want to block user supplied precedence headers in your header block file.

       The following variables can be set to y or n:

       REMAIL Enable remailer functionality. Default: n.

       MIDDLEMAN
              Act  as  an intermediate hop only, forward anonymized messages to another remailer.
              This mode can be used where complaints about anonymous messages  must  be  avoided.
              (The  variable  FORWARDTO  specifies  the  remailer  chain to be used; default: *.)
              Default: n.

       AUTOREPLY
              Send help files  in  response  to  non-remailer  messages.  Explicit  remailer-help
              requests are always served.  Default: n.

       MIX    Accept Mixmaster messages. Default: y.

       PGP    Accept OpenPGP-encrypted Cypherpunk remailer messages.  Default: n.

       UNENCRYPTED
              Accept unencrypted Cypherpunk remailer messages.  Default: n.

       REMIX  Re-encrypt  Type  I  messages  to other remailers in the Mixmaster format (x = only
              when requested by user explicitly).  Default: y.

       BINFILTER
              Filter out binary attachments. Default: n.

       LISTSUPPORTED
              List known remailers and their keys in remailer-conf reply. Default: y.

       MID    Use a hash of the message body as Message-ID, to avoid Usenet spam. Default: y.  If
              MID  is set to a string beginning with @, that string is used as the domain part of
              the message ID.

       AUTOBLOCK
              Allow users to add their address to the dest.blk file by  sending  the  remailer  a
              message containing the line destination-block.  Default: y.

       STATSDETAILS
              List statistics on intermediate vs. final delivery in remailer-stats.  Default: y.

       The following variables have numeric values:

       POOLSIZE
              The  size  of the Mixmaster reordering pool. Larger sizes imply higher security and
              longer delays. Remailer default: 45.  Client default: 0.

       RATE   Percentage of messages from the pool to be  sent.  Remailer  default:  65.   Client
              default:  100.   Lower values cause the pool to increase in size when many messages
              are received at a time, reducing the effect of flooding attacks.

       INDUMMYP
              Probability that Mixmaster will generate dummy messages upon  receipt  of  incoming
              mail.  Larger  numbers  mean more dummy messages on average. For instance, 10 means
              that on average one in nine incoming messages will trigger a dummy generation,  and
              20  means  that one in four will.  0 means no dummy messages. Remailer default: 10.
              Client default: 3.

       OUTDUMMYP
              Probability that Mixmaster will generate dummy messages at SENDPOOL  time.  If  the
              pool  is  processed frequently, this should be a lower value than if there are long
              intervals between pool processing. Examples: 50 means on average, one dummy message
              will  be  generated per pool processing.  80 means four will be generated.  0 means
              no dummy messages. Remailer default: 90.  Client default: 3.

       SIZELIMIT
              Maximum size for anonymous messages in kB.  0 means no limit.  Default: 0.

       POP3SIZELIMIT
              Maximum size for incoming messages in kB  when  using  POP3.   0  means  no  limit.
              Default: 0.  Larger messages are deleted unread if POP3DEL is set to y, and left on
              the server otherwise.

       INFLATEMAX
              Maximum size for Inflate: padding in kB.  0 means padding is not allowed.  Default:
              50 kB.

       MAXRANDHOPS
              Maximum  chain  length  for  message  forwarding  requested by Rand-Hop directives.
              Default: 4.

       MAXRECIPIENTS
              limits the number of allowed recipients in outgoing mail.   Anything  that  exceeds
              this number is dropped silently.  Default: 5.

       TEMP_FAIL
              exit  with  this  exit  code  when  a  timeskew  problem  is  suspected.   Also see
              TIMESKEW_BACK and TIMESKEW_FORWARD.  The default of 75 should  cause  your  MTA  to
              requeue the message if you are running mixmaster from a .forward file.

       STATSAUTOUPDATE
              Set non-zero to enable Daemon stats download mode. Default: 0.

       The following are time variables. They can be given as years ( y ), months ( b ), days ( d
       ), hours ( h ), minutes ( m ), or seconds ( s ).

       SENDPOOLTIME
              How often Mixmaster should check  the  pool  for  messages  to  be  sent.  Remailer
              default: 15m.  Client default: 0h.

       POP3TIME
              How often Mixmaster should check the POP3 accounts listed in pop3.cfg for new mail.
              Default: 1h.

       MAILINTIME
              How often Mixmaster should read mail from MAILIN  and  process  mails  fetched  via
              POP3. Processing here means to answer remailer-xxx requests and decrypt messages to
              the Mixmaster and place them in the pool. No other processing of the pool is  done.
              This action is always performed sending out messages from the pool (at SENDPOOLTIME
              intervals) or receiving mail via POP3 (at POP3TIME intervals). Default: 5m.

       PACKETEXP
              How long to store parts of incomplete multipart messages and other  temporary  pool
              files.  Default: 7d.

       IDEXP  Mixmaster  keeps  a  log  of packet IDs to prevent replay attacks.  IDEXP specifies
              after which period of time old IDs are expired. Default: 7d, minimum: 5d.   If  set
              to 0, no log is kept.

       KEYLIFETIME
              Mixmaster  sets  an  expiration date on its remailer keys KEYLIFETIME after the key
              creation date. Default: 13b.

       KEYGRACEPERIOD
              Mixmaster will continue to  decrypt  messages  encrypted  to  an  expired  key  for
              KEYGRACEPERIOD  period  of  time  after the expiration. This is done to ensure that
              messages already injected into the network are allowed to exit. Do not change  this
              value  unless  you  know what you are doing, or you will risk partitioning attacks.
              Default: 7d.

       KEYOVERLAPPERIOD
              Mixmaster will generate and advertise a new key  KEYOVERLAPPERIOD  period  of  time
              before  the  expiration  of  the  key.  Clients should always use the most recently
              created valid key.  Clients  that  deviate  from  this  recommended  behavior  risk
              partitioning attacks. Default: 7d.

       TIMESKEW_BACK
              Allow  going  back  up  to  TIMESKEW_BACK  in time.  If the time moved further back
              mixmaster will assume there is a problem with your clock and refuse to start  as  a
              remailer.   This  is  done  by  comparing the latest timestamp in time.log with the
              current timestamp.  If set to 0 then this test is skipped.  If the system  time  is
              indeed correct, simply remove time.log.  Default: 12h.

       TIMESKEW_FORWARD
              Similar to TIMESKEW_BACK but allow jumping this far into the future.  Default: 2w.

       STATSINTERVAL
              Time  interval between daemon downloads of stats files. Enabled by STATSAUTOUPDATE.
              Default: 2h.

       The following strings must be specified at compile-time in config.h.  It  is  not  usually
       necessary to modify any of these:

       DISCLAIMER
              A  default  string  to  be  inserted  in the header of all anonymous messages if no
              disclaim.txt file is available. If DISCLAIMER contains the substring %s, it will be
              substituted with the COMPLAINTS address.

       FROMDISCLAIMER
              A  default  string  to  be  inserted at the top of the message body if an anonymous
              message contains a user-supplied From: line and no fromdscl.txt file is available.

       MSGFOOTER
              A default string to be inserted at the bottom of the message body of all  anonymous
              messages if no footer.txt file is available.

       BINDISCLAIMER
              A string to replace the body of a binary attachment when the remailer is configured
              to filter out binaries.

       CHARSET
              The character set used for MIME-encoded header lines.

       DESTBLOCK
              A quoted list of files that contain blocked addresses.  Files must be separated  by
              one  space.  Mixmaster  will  choose  the  first  file  for writing if AUTOBLOCK is
              enabled.

       The following variables can be set in the Makefile or in config.h:

       COMPILEDPASS
              A passphrase used to protect the remailer secret keys from  casual  attackers.  You
              can  use  `make PASS="your passphrase"' to set a passphrase. This should not be the
              same as the client passphrase. This option  is  now  deprecated  in  favor  of  the
              configuration file option PASSPHRASE.

       SPOOL  Set  SPOOL  if you want to use a default directory other than ~/Mix or if Mixmaster
              is run in an environment where $HOME is not set, e.g. when  invoked  via  .forward.
              This value can be overridden by use of the environment variable $MIXPATH.

       USE_SSLEAY
              Use   the   SSLeay/OpenSSL  cryptographic  library.  Currently  this  is  the  only
              cryptographic library supported by Mixmaster.

       USE_IDEA
              Use the IDEA encryption algorithm. A license is required to use IDEA for commercial
              purposes. See file idea.txt for details.

       USE_PGP
              Support  the  OpenPGP  encryption  format.  Mixmaster  does  not  call any external
              encryption program.

       USE_PCRE
              Use the regular expression library.

       USE_ZLIB
              Use the zlib compression library.

       USE_NCURSES
              Use the ncurses library.

       USE_SOCK
              Use sockets to transfer mail by POP3 and SMTP.

       USE_WINGUI
              Use the Win32 GUI.

       HAVE_GETDOMAINNAME
              The getdomainname(2) function is available.

FILES

       These filenames can be overridden by setting the corresponding configuration option (given
       in parentheses).

       mix.cfg
              Mixmaster configuration file.

       pubring.asc
              Type 1 remailer keys (PGPREMPUBASC).

       pubring.mix
              Type 2 remailer keys (PUBRING).

       rlist.txt
              List of reliable type 1 remailers (TYPE1LIST).

       mlist.txt
              List of reliable type 2 remailers (TYPE2REL).

       type2.list
              List of known type 2 remailers (optional) (TYPE2LIST).

       starex.txt
              List  of  remailers  which should not be used in randomly generated remailer chains
              (STAREX).

   Remailer files:
       disclaim.txt
              A string to be inserted in the header of all anonymous messages (DISCLAIMFILE).

       fromdscl.txt
              A string to be inserted at the top of the message  body  if  an  anonymous  message
              contains a user-supplied From: line (FROMDSCLFILE).

       footer.txt
              A string to be inserted at the bottom of the message body of all anonymous messages
              (MSGFOOTERFILE).

       help.txt
              Help file sent in response to remailer-help requests (HELPFILE).

       adminkey.txt
              The PGP key of the remailer operator sent in response to remailer-adminkey requests
              (ADMKEYFILE).

       abuse.txt
              File  sent  in  response  to  mail  to  the  COMPLAINTS address if AUTOREPLY is set
              (ABUSEFILE).

       reply.txt
              Help file sent in response to replies to anonymous messages  if  AUTOREPLY  is  set
              (REPLYFILE).

       usage.txt
              Help  file  sent  in  response  to  non-remailer  message  sent  to REMAILERADDR if
              AUTOREPLY is set. If usage.log exists, recipients are logged and a  reply  is  sent
              only once to avoid mail loops (USAGEFILE).

       blocked.txt
              Information  sent  in  response  to  automatically  processed  blocking requests if
              AUTOREPLY is set (BLOCKFILE).

       pop3.cfg
              List of POP3 accounts with lines of the form account@host.domain  password  to  get
              remailer  messages  from.  The  lines  may optionally contain the keyword "apop" or
              "pass" to select an authentication method (POP3CONF).

       dest.alw
              List of  addresses  to  which  Mixmaster  will  deliver,  even  in  middleman  mode
              (DESTALLOW).

       dest.alw.nonpublished
              Similar  to  dest.alw,  with the only difference that this list is not published in
              remailer-conf replies (DESTALLOW2).

       dest.blk
              List of blocked destination addresses.  Mixmaster does not send mail to the blocked
              addresses listed in this file (DESTBLOCK).

       rab.blk
              Identical  to dest.blk, except Mixmaster will not write to this file.  For use with
              external remailer abuse blocklists.

       source.blk
              List of blocked source addresses.   If  an  incoming  message  originates  from  an
              address  or  IP in this list, it will be ignored. This feature can be used to avoid
              spam and other abusive mail (SOURCEBLOCK).

       header.blk
              List of unwanted header fields. The file is used to delete  unwanted  header  lines
              (e.g.  lines  that  indicate  a false identity, or Usenet control messages), and do
              other header filtering (HDRFILTER).

              A destination address or header line is left out if it contains a search string  or
              matches  a  regular expression specified in the block file. Lines in the block file
              that begin and end with a slash (/regexp/) are interpreted as regular  expressions.
              Lines without slashes are used for case-independent substring search.

              If  a  message contains a header line that matches a /regexp/q entry in header.blk,
              the entire message is deleted.

              In addition, regular expressions can be substituted. Back-references are supported.
              For example

               /^From: *([^@]*) <.*>/From: $1/
               /^From:.* \(([^@]*)/From: $1/
               /^From: *([^@]*).*$/From: $1 <nobody@remailer.domain>/

              would allow user-defined names in the From: line, while replacing any given address
              with the remailer address.

       allpingers.txt
              Information on all known pingers (ALLPINGERSFILE).

   Mixmaster uses the following files internally:
       mixrand.bin
              Random seed file (MIXRAND).

       secring.pgp
              Remailer type 1 secret keys (PGPREMSECRING).

       secring.mix
              Remailer type 2 secret keys (SECRING).

       pgpkey.txt
              The public type 1 remailer key (PGPKEY).

       key.txt
              The public type 2 remailer key (KEYFILE).

       id.log Log file of messages already processed (IDLOG).

       stats.log
              Log file for remailer statistics (STATS).

       stats-src.txt
              File for name of most recent statistics source (STATSSRC).

       pgpmaxcount.log
              Log file for PGP Max-Count statistics (PGPMAXCOUNT).

       time.log
              Time for periodic remailer actions (REGULAR).

       dhparam.mix
              Public Diffie-Hellman parameters used for El-Gamal key generation (DHPARAMS).

       dsaparam.mix
              Public DSA parameters used for DSA key generation (DSAPARAMS).

       mixmaster.pid
              Pid file in daemon mode (PIDFILE).

       pool/  Message pool directory (POOL).

       pool/m*
              Message pool files.

       pool/p*
              Partial messages.

       pool/l*
              Latent messages.

       pool/s*
              Messages to be sent.

       pool/t*
              Temporary files.

ENVIRONMENT

       MIXPATH
              The path to the Mixmaster directory. The default is ~/Mix.

       MIXPASS
              The passphrase used to protect your nyms  and  PGP  keys.   (The  remailer  uses  a
              different passphrase.) If MIXPASS is not set, the client will ask for a passphrase.

SEE ALSO

       mpgp(1), pgp(1), procmail(1), sendmail(8).

HISTORY

       Mixmaster  is  an implementation of a Chaumian mix-net system.  Versions 1.0 through 2.0.3
       of the mixmaster remailer were originally written by Lance Cottrell. Mixmaster  was  first
       released  in  1995. Ulf Moeller collaborated on version 2.0.4, and began an entire rewrite
       of mixmaster in 1999. This rewrite was released in  2002  as  version  2.9.0,  with  major
       contributions  from  Janis  Jagars,  Peter  Palfrader, and Len Sassaman.  Mixmaster 3.0 is
       based on the 2.9 codebase. Peter Palfrader and Len Sassaman were the principal maintainers
       until  2006. Since then, Steve Crook, Len Sassaman, and Colin Tuckley have filled the role
       of principal maintaners. For more information on contributing authors, please see the file
       THANKS for details.

COPYRIGHT

       Copyright 1999 - 2008 Anonymizer Inc., The Mixmaster Development Team, and others.

       Mixmaster  may  be  redistributed and modified under certain conditions.  This software is
       distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or  implied.
       See the file COPYRIGHT for details.

                                      Mixmaster Version 3.0                          MIXMASTER(1)