MirOS Manual: activinit(8), cryptoinit(8), snkinit(8), tokeninit(8)

TOKENINIT(8)             BSD System Manager's Manual              TOKENINIT(8)

NAME

     activinit, cryptoinit, snkinit - modify or add user in ActivCard, CRYPTO-
     Card, or SNK-004 authentication system

SYNOPSIS

     tokeninit [-f] [-h] [-m mode] [-s] [-v] user_ID [...]

DESCRIPTION

     The tokeninit utility may also be invoked by one of the following names:
     activinit, cryptoinit, or snkinit. Depending on the name it was invoked
     as, it will initialize the system information to allow one to use the Ac-
     tivCard, CRYPTOCard, or SNK-004 digital encryption token to login. The
     tokeninit utility is intended for use by the system administrator.

     Token card systems provide strong user authentication by combining a
     user's unique knowledge (a Personal Identification Number) and a physical
     object (the token) which the user must have in their possession to login.
     The system administrator programs the token with a secret encryption key
     which is also stored in the database. The user programs the token with a
     PIN. To discourage exhaustive attempts to guess the PIN, configuration
     options permit the token to be programmed to erase knowledge of the
     shared secret should the user enter an excessive number of incorrect PIN
     entries.

     The user activates the token by entering their PIN into the token. After
     activating the token, the user enters a random number challenge presented
     by the host computer into the token. The challenge is encrypted by the
     token and a response is displayed. The user then enters the response at
     the host computer's prompt, where it is compared with the anticipated
     response.

     Token cards typically support multiple unique encryption keys. This fa-
     cility allows a single token to be used for multiple computer systems, or
     multiple user instances on the same system.

     The options are as follows:

     -f      Force reinitialization of an existing account. The current shared
             secret stored in the database will be replaced with a new shared
             secret. The new shared secret must be entered into the token, re-
             placing the current one.

     -h      Read the shared secret as a 16 digit hexadecimal integer rather
             than a sequence of 8 octets. This is not supported when invoked
             as snkinit.

     -m      Specify the input modes allowed for this user. Possible modes are
             decimal (dec), hexadecimal (hex), phonebook (phone), and
             reduced-input (rim). Not all modes are available for all types of
             cards. Multiple -m options may be specified to enable multiple
             modes. By default only the hexadecimal mode is enabled, except
             for the SNK-004 token, which by default only enables the decimal
             mode. If an attempt is made to initialize a card with only
             reduced-input, the default mode for the card is silently includ-
             ed.

     -s      By default, tokeninit prompts for a shared secret to enter into
             the authentication database. The -s option generates a 64-bit
             cryptographically strong key for use in the token. This shared
             secret will be saved in the database for the user ID specified on
             the command line. After entering the shared secret into the to-
             ken, determine that the checksum computed by the token matches
             the one displayed by tokeninit.

     -v      Enable verbose mode. tokeninit will emit messages on the status
             of each user ID processed.

REDUCED-INPUT MODE
     Reduced-input mode allows the token to predict the next challenge, given
     the current challenge. This may be used to eliminate the need to enter
     the challenge to the token or may also be used with a paper list. Using a
     program such as x99token(1) many challenges could be precomputed and
     printed. This list should be kept secret. This list can then take the
     place of an actual token until the system has issued all the challenges
     printed. Challenges are predicted by the following algorithm:

           * Encrypt the last challenge with the shared secret key

           * AND each byte of the response with 0x0f

           * Modulo each byte by 10 (0x0a)

           * ADD 0x30 (ASCII value of '0') to each byte

     The resulting 8 bytes are all ASCII decimal digits and are the next chal-
     lenge.

FILES

     /etc/activ.db   database of information for ActivCard system
     /etc/crypto.db  database of information for CRYPTOCard system
     /etc/snk.db     database of information for SNK-004 system

DIAGNOSTICS

     Diagnostic messages are logged via syslog(3) with the LOG_AUTH facility.

COMMENTS

     A supplier for ActivCard tokens may be obtained by contacting:

           ActivCard, Inc.
           303 Twin Dolphin Dr., Ste 420
           Redwood City, CA 94065
           Tel: (415) 654-1700
           Fax: (415) 654-1701

     CRYPTOCard tokens may be obtained by contacting:

           CRYPTOCard Incorporated
           Attn: Wade Clark
           1649 Barclay Blvd.
           Buffalo Grove, Illinois 60089
           Tel: (800) 307-7042 / (708) 459-6500
           Fax: (708) 459-6599
           <token@cryptocard.com>

     SNK-004 tokens are no longer available for purchase.

SEE ALSO

     x99token(1), syslog(3), login_token(8), tokenadm(8)

AUTHORS

     Jack Flory <jpf@mig.com>

BUGS

     Not all modes of all cards are supported.

MirOS BSD #10-current         September 26, 1995                             1

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