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safe (4)
  • >> safe (4) ( FreeBSD man: Специальные файлы /dev/* )

  • BSD mandoc
     

    NAME

    
    
    safe
    
     - SafeNet crypto accelerator
    
     
    

    SYNOPSIS

    To compile this driver into the kernel, place the following lines in your kernel configuration file:
    device crypto device cryptodev device safe

    Alternatively, to load the driver as a module at boot time, place the following line in loader.conf5:

    safe_load="YES"
    

    sysctl hw.safe.debug
    sysctl hw.safe.dump
    sysctl hw.safe.rnginterval
    sysctl hw.safe.rngbufsize
    sysctl hw.safe.rngmaxalarm  

    DESCRIPTION

    The sysctl Va hw.safe.debug driver supports cards containing SafeNet crypto accelerator chips.

    The sysctl Va hw.safe.debug driver registers itself to accelerate DES, Triple-DES, AES, MD5-HMAC, SHA1-HMAC, and NULL operations for ipsec(4) and crypto(4).

    On all models, the driver registers itself to provide random data to the random(4) subsystem. Periodically the driver will poll the hardware RNG and retrieve data for use by the system. If the driver detects that the hardware RNG is resonating with any local signal, it will reset the oscillators that generate random data. Three sysctl(8) settings control this procedure: hw.safe.rnginterval specifies the time, in seconds, between polling operations, hw.safe.rngbufsize specifies the number of 32-bit words to retrieve on each poll, and hw.safe.rngmaxalarm specifies the threshold for resetting the oscillators.

    When the driver is compiled with SAFE_DEBUG defined, two sysctl(8) variables are provided for debugging purposes: hw.safe.debug can be set to a non-zero value to enable debugging messages to be sent to the console for each cryptographic operation, hw.safe.dump is a write-only variable that can be used to force driver state to be sent to the console. Set this variable to ``ring '' to dump the current state of the descriptor ring, to ``dma '' to dump the hardware DMA registers, or to ``int '' to dump the hardware interrupt registers.  

    HARDWARE

    The sysctl Va hw.safe.debug driver supports cards containing any of the following chips:

    SafeNet 1141
    The original chipset. Supports DES, Triple-DES, AES, MD5, and SHA-1 symmetric crypto operations, RNG, public key operations, and full IPsec packet processing.
    SafeNet 1741
    A faster version of the 1141.

     

    SEE ALSO

    crypt(3), crypto(4), intro(4), ipsec(4), random(4), crypto(9)  

    BUGS

    Public key support is not implemented.


     

    Index

    NAME
    SYNOPSIS
    DESCRIPTION
    HARDWARE
    SEE ALSO
    BUGS


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