TDA4VM: keywriter

For which release are you using/wanting to download keywritter? 

Regards,

Brijesh

Hi Brijesh

sdk 7.1 and sdk8.0 

Thanks

Hello Brijesh,

This tarball does not seem to have ti_fek_public.pem. Where can I find it?

Thanks

Vai

Hello Vai,

Not sure what is ti_fek_public.pem, but could you please pdk_jacinto_08_00_00_37/packages/ti/build/makerules folder if it has keys that you are looking for?

Regards,

Brijesh

Hello Brijesh - 

ti_fek_public.pem is the TI Field Encryption Key (TI-FEK) used to encrypt parts of the OTP certificate & the AES-256 keys. No the makerules folder does not have this key in it.

Without the FEK, we'll see this error when trying to run the Keywriter cert gen script:

XX:scripts> ./gen_keywr_cert.sh -s keys/smpk.pem --smek keys/smek.key -b keys/bmpk.pem --bmek keys/bmek.key -t ti_fek_public.pem -a keys/aes256.key
Generating Dual signed certificate!!
# encrypt aes256 key with tifek public part
Can't open ti_fek_public.pem for reading, No such file or directory
139815451144640:error:02001002:system library:fopen:No such file or directory:../crypto/bio/bss_file.c:72:fopen('ti_fek_public.pem','r')
139815451144640:error:2006D080:BIO routines:BIO_new_file:no such file:../crypto/bio/bss_file.c:79:

Hi Vai,

aes256-key is randomly generated and i think the ti_fek_public.pem is shared over mysecureSW. So please check it after login into mysecuresw .

Regards,

Brijesh

Hi Brijesh,

Can you point out where this file is and what it is called on mySecureSW? I can't find it there at the moment.

Thanks

Vai