tpm2_nvextend(1) General Commands Manual tpm2_nvextend(1) (NAME) tpm2_nvextend - TPM2 (NV) (SYNOPSIS) tpm2_nvextend [] [] (DESCRIPTION) tpm2_nvextend(1) - (NV) PCR . NV "extend" NV tpm2_nvdefine(1) "nt" . (raw handle) NV "TPM2_HR_NV_INDEX" . (OPTIONS) o -C, --hierarchy=OBJECT: . : o o TPM_RH_OWNER o p TPM_RH_PLATFORM o nv-index . -C . auth -p tpm2_nvdefine(1) . o -P, --auth=AUTH: . o -i, --input=FILE: NV . o --cphash=FILE . cpHash . : cpHash rphash . o --rphash=FILE . rpHash . o -S, --session=FILE: tpm2_startauthsession. . / . o -n, --name=FILE: NV cpHash TPM . o (ARGUMENT): NV . (References) (Context Object Format) (handle) : o (transient) TPM . o : o owner: (owner hierarchy) o platform: (platform hierarchy) o endorsement: (endorsement hierarchy) o lockout: (lockout control persistent object) o ( 0x81010013) . (Authorization Formatting) TPM2.0 : . (Password) . HMAC . (Sessions) : " (EMPTY PASSWORD) ". auth HMAC . . . HMAC ( tpm2_startauthsession(1) ). (Passwords) . : . (String) "str:" ( ) . (Examples) foobar str:foobar (Hex-string) "hex:" . (Example) hex:1122334455667788 (File) "file:" "-" (stdin) . . (Examples) # : file:- # : file:path/to/password/file # echo stdin: echo foobar | tpm2_tool -p file:- # bash here-string stdin: tpm2_tool -p file:- <<< foobar (Sessions) (policy session) session . tpm2_startauthsession(1) . auth ( policy password) + (Passwords) . (Examples) session.ctx: session:session.ctx session.ctx auth mypassword: session:session.ctx+mypassword session.ctx auth 0x11223344: session:session.ctx+hex:11223344 PCR (PCR Authorizations) "pcr:" (minilanguage) PCR PCR . PCR : = PCR " PCR" . raw-pcr-file PCR tpm2_pcrread(1) . PCR (Examples) PCR sha256 : pcr:sha256:0,1,2,3 AUTH. (COMMON OPTIONS) . o -h, --help=[man|no-man]: . (manpager) . "man" "man" man stderr . "no-man" stdout . MANPATH man(1) . o -v, --version: TCTI . o -V, --verbose: . . o -Q, --quiet: stdout. o -Z, --enable-errata: (errata fixups). TPM . TPM2TOOLS_ENABLE_ERRATA . o -z, --pwd-session: HMAC . TPM . (unsalted) OpenSSL FIPS . auth (salted) . o -R, --autoflush: (autoflush) . . TPM2TOOLS_AUTOFLUSH yes true . TCTI (TCTI Configuration) TCTI "Transmission Interface" TPM . TCTI TPM . TCTI : 1. -T --tcti 2. : TPM2TOOLS_TCTI. : . TCTI : o tabrmd - tabrmd . tabrmd abrmd tcti . o mssim - TPM . o device - TPM . o none - TPM . TPM (off-tpm) TCTI . TCTI . "none" . : : . TCTI (TCTI Defaults) TCTI TCTI dlopen(3) . TCTI tabrmd device mssim . -v TCTI . - "default-tcti" TCTI . TCTI (Custom TCTIs) TCTI TCTI . dlopen(3) tcti-name . dlopen(3) . TCTI (TCTI OPTIONS) TCTI : o device: TCTI (device) TPM TCTI . /dev/tpm0 . : -T device:/dev/tpm0 export TPM2TOOLS_TCTI="device:/dev/tpm0" o mssim: TCTI mssim IP (port) . 127.0.0.1 2321 . : -T mssim:host=localhost,port=2321 export TPM2TOOLS_TCTI="mssim:host=localhost,port=2321" o abrmd: TCTI abrmd - `,' . `=' . o TCTI abrmd : 1. `bus_name' : tabrmd ( ). 2. `bus_type' : dbus ( ) `session' `system' . tcti tabrmd bus_name=com.example.FooBar: \--tcti=tabrmd:bus_name=com.example.FooBar tcti (abrmd) bus_type=session: \--tcti:bus_type=session : abrmd tabrmd . (EXAMPLES) NV (OR 0xbadc0de into an index of 0's) tpm2_nvdefine -C o -a "nt=extend|ownerread|policywrite|ownerwrite|writedefine" 1 echo 'my data' | tpm2_nvextend -C o -i- 1 tpm2_nvread -C o 1 | xxd -p -c32 db7472e3fe3309b011ec11565bce4ea6668cc8ecdef7e6fdcda5206687af3f43 (Returns) : o 0 - . o 1 - . o 2 - . o 3 - . o 4 - TCTI. o 5 - . tpm2_testparams. (BUGS) (Github Issues) (HELP) (Mailing List) (LICENSE) (CC BY 4.0) . tpm2-tools tpm2_nvextend(1)