# phpman > man > ssh-pkcs11-helper(8)

[SSH-PKCS11-HELPER(8)](https://www.chedong.com/phpMan.php/man/SSH-PKCS11-HELPER/8/markdown)      BSD System Manager's Manual     [SSH-PKCS11-HELPER(8)](https://www.chedong.com/phpMan.php/man/SSH-PKCS11-HELPER/8/markdown)

## NAME
     **ssh-pkcs11-helper** — OpenSSH helper for PKCS#11 support

## SYNOPSIS
     **ssh-pkcs11-helper** [**-v**]

## DESCRIPTION
     **ssh-pkcs11-helper** is used by [ssh-agent(1)](https://www.chedong.com/phpMan.php/man/ssh-agent/1/markdown) to access keys provided by a PKCS#11 token.

     **ssh-pkcs11-helper** is not intended to be invoked by the user, but from [ssh-agent(1)](https://www.chedong.com/phpMan.php/man/ssh-agent/1/markdown).

     A single option is supported:

### -v
             This is helpful in debugging problems.  Multiple **-v** options increase the verbosity.
             The maximum is 3.

             Note that [ssh-agent(1)](https://www.chedong.com/phpMan.php/man/ssh-agent/1/markdown) will automatically pass the **-v** flag to **ssh-pkcs11-helper** when it
             has itself been placed in debug mode.

## SEE ALSO
     [ssh(1)](https://www.chedong.com/phpMan.php/man/ssh/1/markdown), [ssh-add(1)](https://www.chedong.com/phpMan.php/man/ssh-add/1/markdown), [ssh-agent(1)](https://www.chedong.com/phpMan.php/man/ssh-agent/1/markdown)

## HISTORY
     **ssh-pkcs11-helper** first appeared in OpenBSD 4.7.

## AUTHORS
     Markus Friedl <<_markus@openbsd.org_>>

BSD                            November 30, 2019                           BSD