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Revision 0f66998f

ID0f66998ff6d5d2133b9b08471a44e13b11119e50

Added by Paul Moore over 11 years ago

vnc: disable VNC password authentication (security type 2) when in FIPS mode

FIPS 140-2 requires disabling certain ciphers, including DES, which is used
by VNC to obscure passwords when they are sent over the network. The
solution for FIPS users is to disable the use of VNC password auth when the
host system is operating in FIPS compliance mode and the user has specified
'-enable-fips' on the QEMU command line.

This patch causes QEMU to emit a message to stderr when the host system is
running in FIPS mode and a VNC password was specified on the commend line.
If the system is not running in FIPS mode, or is running in FIPS mode but
VNC password authentication was not requested, QEMU operates normally.

Signed-off-by: Paul Moore <>
Signed-off-by: Anthony Liguori <>

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