ST33TPHF20SPI datasheet(27/47 Pages) STMICROELECTRONICS

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27 / 47 page

FIPS140-2 SECURITY POLICY

Page 27 of 47

NON-PROPRIETARY DOCUMENT

Primary keys

Endorsement key -

RSA primes

2 primes of 1024 bits used to construct EK if parameters in

TPM2_CreatePrimary command match the default EK RSA template.

Generated by FIPS140-2 compliant HSM.

TPM2_Change

EPS

Endorsement key -

ECC private key

ECC 256 bits private key used to construct EK if parameters in

TPM2_CreatePrimary command match the default EK ECC template.

Generated by FIPS140-2 compliant HSM.

TPM2_Change

EPS

Field upgrade keys

Field upgrade

verification key

2048 bits permanent RSA key unique per TPM product line. Only public part of

the key is stored in the TPM (modulus, exponent).

No (public key)

Transient DRBG

state

Internal state (V and C secret values) of a HDRBG instance (based on SHA256)

stored in RAM. HDRBG is instantiated from primary seeds and used only in

TPM2_CreatePrimary to generate prime numbers for primary RSA keys.

Transient DRBG

state cleared at

the end of

random

numbers

generation

DRBG input seed

48-bytes value output from a NDRNG.

Transient value

ST33TPHF20SPI bảng dữ liệu(PDF) 27 Page - STMicroelectronics