Hi Michael, After a bit more searching around I don't think I have TPM capability on my systems. Regards, Adolf. On 21/09/2021 13:40, Adolf Belka wrote: > Hi Michael, > > On 21/09/2021 11:50, Michael Tremer wrote: >> Hello, >> >>> On 18 Sep 2021, at 17:15, Peter Müller wrote: >>> >>> Hello Michael, >>> hello *, >>> >>> just a small comment for the records: As discussed in the last monthly telephone >>> conference (https://wiki.ipfire.org/devel/telco/2021-09-06), we will use a TPM only >>> for HWRNG purposes. Nothing else will depend on it, as there is nothing relevant >>> left to be locked down in IPFire thanks to enforced kernel module signing. >> Does anyone have any hardware at grabs to verify that this works? >> >> rngd —-list should list the TPM device as a potential source. > > On my running system I got the following response to the command:- > > Entropy sources that are available but disabled > 1: TPM RNG Device (tpm) > 4: NIST Network Entropy Beacon (nist) > Available and enabled entropy sources: > 2: Intel RDRAND Instruction RNG (rdrand) > Available entropy sources that failed initalization: > 0: Hardware RNG Device (hwrng) > > > and on my VM testbed system I got the same message:- > > Entropy sources that are available but disabled > 1: TPM RNG Device (tpm) > 4: NIST Network Entropy Beacon (nist) > Available and enabled entropy sources: > 2: Intel RDRAND Instruction RNG (rdrand) > Available entropy sources that failed initalization: > 0: Hardware RNG Device (hwrng) > > I suspect that available but disabled means that I would need to turn it on in the bios. Is that a correct assumption? > > To test it I presume that I need to copy the changes into the kernel config for the architecture I am using and also need to reboot. > > Once I have the changers in place how do I tell if it is working? > > Regards, > > Adolf. > >>> So no user needs to worry about introducing TPM support coming with a lack of >>> digital sovereignty - that is, if something like this even exits on today's hardware. :-) >>> >>> Acked-by: Peter Müller >>> >>> Thanks, and best regards, >>> Peter Müller >>> >>> >>>> Signed-off-by: Michael Tremer >>>> --- >>>>   config/kernel/kernel.config.aarch64-ipfire | 15 ++++++++++++++- >>>>   config/kernel/kernel.config.armv6l-ipfire  | 12 +++++++++++- >>>>   config/kernel/kernel.config.i586-ipfire    | 16 +++++++++++++++- >>>>   config/kernel/kernel.config.x86_64-ipfire  | 17 ++++++++++++++++- >>>>   4 files changed, 56 insertions(+), 4 deletions(-) >>>> diff --git a/config/kernel/kernel.config.aarch64-ipfire b/config/kernel/kernel.config.aarch64-ipfire >>>> index aa34b64db..49ee85970 100644 >>>> --- a/config/kernel/kernel.config.aarch64-ipfire >>>> +++ b/config/kernel/kernel.config.aarch64-ipfire >>>> @@ -3422,7 +3422,19 @@ CONFIG_DEVMEM=y >>>>   CONFIG_RAW_DRIVER=y >>>>   CONFIG_MAX_RAW_DEVS=8192 >>>>   CONFIG_DEVPORT=y >>>> -# CONFIG_TCG_TPM is not set >>>> +CONFIG_TCG_TPM=m >>>> +CONFIG_HW_RANDOM_TPM=y >>>> +CONFIG_TCG_TIS_CORE=m >>>> +CONFIG_TCG_TIS=m >>>> +CONFIG_TCG_TIS_I2C_ATMEL=m >>>> +CONFIG_TCG_TIS_I2C_INFINEON=m >>>> +CONFIG_TCG_TIS_I2C_NUVOTON=m >>>> +CONFIG_TCG_ATMEL=m >>>> +CONFIG_TCG_INFINEON=m >>>> +CONFIG_TCG_CRB=m >>>> +CONFIG_TCG_VTPM_PROXY=m >>>> +CONFIG_TCG_TIS_ST33ZP24=m >>>> +CONFIG_TCG_TIS_ST33ZP24_I2C=m >>>>   # CONFIG_XILLYBUS is not set >>>>   # end of Character devices >>>>   @@ -7271,6 +7283,7 @@ CONFIG_IO_WQ=y >>>>   CONFIG_KEYS=y >>>>   # CONFIG_KEYS_REQUEST_CACHE is not set >>>>   # CONFIG_PERSISTENT_KEYRINGS is not set >>>> +# CONFIG_TRUSTED_KEYS is not set >>>>   # CONFIG_ENCRYPTED_KEYS is not set >>>>   # CONFIG_KEY_DH_OPERATIONS is not set >>>>   CONFIG_SECURITY_DMESG_RESTRICT=y >>>> diff --git a/config/kernel/kernel.config.armv6l-ipfire b/config/kernel/kernel.config.armv6l-ipfire >>>> index 7b82e87df..b11a179e3 100644 >>>> --- a/config/kernel/kernel.config.armv6l-ipfire >>>> +++ b/config/kernel/kernel.config.armv6l-ipfire >>>> @@ -3463,7 +3463,16 @@ CONFIG_DEVMEM=y >>>>   CONFIG_RAW_DRIVER=y >>>>   CONFIG_MAX_RAW_DEVS=8192 >>>>   CONFIG_DEVPORT=y >>>> -# CONFIG_TCG_TPM is not set >>>> +CONFIG_TCG_TPM=m >>>> +CONFIG_HW_RANDOM_TPM=y >>>> +CONFIG_TCG_TIS_CORE=m >>>> +CONFIG_TCG_TIS=m >>>> +CONFIG_TCG_TIS_I2C_ATMEL=m >>>> +CONFIG_TCG_TIS_I2C_INFINEON=m >>>> +CONFIG_TCG_TIS_I2C_NUVOTON=m >>>> +CONFIG_TCG_VTPM_PROXY=m >>>> +CONFIG_TCG_TIS_ST33ZP24=m >>>> +CONFIG_TCG_TIS_ST33ZP24_I2C=m >>>>   # CONFIG_XILLYBUS is not set >>>>   # end of Character devices >>>>   @@ -7366,6 +7375,7 @@ CONFIG_IO_WQ=y >>>>   CONFIG_KEYS=y >>>>   # CONFIG_KEYS_REQUEST_CACHE is not set >>>>   # CONFIG_PERSISTENT_KEYRINGS is not set >>>> +# CONFIG_TRUSTED_KEYS is not set >>>>   # CONFIG_ENCRYPTED_KEYS is not set >>>>   # CONFIG_KEY_DH_OPERATIONS is not set >>>>   CONFIG_SECURITY_DMESG_RESTRICT=y >>>> diff --git a/config/kernel/kernel.config.i586-ipfire b/config/kernel/kernel.config.i586-ipfire >>>> index 90d4ac856..2d7158c96 100644 >>>> --- a/config/kernel/kernel.config.i586-ipfire >>>> +++ b/config/kernel/kernel.config.i586-ipfire >>>> @@ -3449,7 +3449,21 @@ CONFIG_DEVPORT=y >>>>   CONFIG_HPET=y >>>>   # CONFIG_HPET_MMAP is not set >>>>   CONFIG_HANGCHECK_TIMER=m >>>> -# CONFIG_TCG_TPM is not set >>>> +CONFIG_TCG_TPM=m >>>> +CONFIG_HW_RANDOM_TPM=y >>>> +CONFIG_TCG_TIS_CORE=m >>>> +CONFIG_TCG_TIS=m >>>> +CONFIG_TCG_TIS_I2C_ATMEL=m >>>> +CONFIG_TCG_TIS_I2C_INFINEON=m >>>> +CONFIG_TCG_TIS_I2C_NUVOTON=m >>>> +CONFIG_TCG_NSC=m >>>> +CONFIG_TCG_ATMEL=m >>>> +CONFIG_TCG_INFINEON=m >>>> +CONFIG_TCG_XEN=m >>>> +CONFIG_TCG_CRB=m >>>> +CONFIG_TCG_VTPM_PROXY=m >>>> +CONFIG_TCG_TIS_ST33ZP24=m >>>> +CONFIG_TCG_TIS_ST33ZP24_I2C=m >>>>   # CONFIG_TELCLOCK is not set >>>>   # CONFIG_XILLYBUS is not set >>>>   # end of Character devices >>>> diff --git a/config/kernel/kernel.config.x86_64-ipfire b/config/kernel/kernel.config.x86_64-ipfire >>>> index fe93d731c..65014f41a 100644 >>>> --- a/config/kernel/kernel.config.x86_64-ipfire >>>> +++ b/config/kernel/kernel.config.x86_64-ipfire >>>> @@ -3413,7 +3413,21 @@ CONFIG_DEVPORT=y >>>>   CONFIG_HPET=y >>>>   # CONFIG_HPET_MMAP is not set >>>>   CONFIG_HANGCHECK_TIMER=m >>>> -# CONFIG_TCG_TPM is not set >>>> +CONFIG_TCG_TPM=m >>>> +CONFIG_HW_RANDOM_TPM=y >>>> +CONFIG_TCG_TIS_CORE=m >>>> +CONFIG_TCG_TIS=m >>>> +CONFIG_TCG_TIS_I2C_ATMEL=m >>>> +CONFIG_TCG_TIS_I2C_INFINEON=m >>>> +CONFIG_TCG_TIS_I2C_NUVOTON=m >>>> +CONFIG_TCG_NSC=m >>>> +CONFIG_TCG_ATMEL=m >>>> +CONFIG_TCG_INFINEON=m >>>> +CONFIG_TCG_XEN=m >>>> +CONFIG_TCG_CRB=m >>>> +CONFIG_TCG_VTPM_PROXY=m >>>> +CONFIG_TCG_TIS_ST33ZP24=m >>>> +CONFIG_TCG_TIS_ST33ZP24_I2C=m >>>>   # CONFIG_TELCLOCK is not set >>>>   # CONFIG_XILLYBUS is not set >>>>   # end of Character devices >>>> @@ -6746,6 +6760,7 @@ CONFIG_IO_WQ=y >>>>   CONFIG_KEYS=y >>>>   # CONFIG_KEYS_REQUEST_CACHE is not set >>>>   # CONFIG_PERSISTENT_KEYRINGS is not set >>>> +# CONFIG_TRUSTED_KEYS is not set >>>>   # CONFIG_ENCRYPTED_KEYS is not set >>>>   # CONFIG_KEY_DH_OPERATIONS is not set >>>>   CONFIG_SECURITY_DMESG_RESTRICT=y