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tss2_changeauth(1) General Commands Manual tss2_changeauth(1) NAME tss2_changeauth(1) - This command changes the authorization data of an en- tity referred to by the path. SYNOPSIS tss2_changeauth [OPTIONS] SEE ALSO fapi-config(5) to adjust Fapi parameters like the used cryptographic pro- file and TCTI or directories for the Fapi metadata storages. fapi-profile(5) to determine the cryptographic algorithms and parameters for all keys and operations of a specific TPM interaction like the name hash algorithm, the asymmetric signature algorithm, scheme and parameters and PCR bank selection. DESCRIPTION tss2_changeauth(1) - OPTIONS These are the available options: * -a, --authValue=STRING: The new UTF-8 password. Optional parameter. If it is neglected then the user is queried interactively for a password. To set no password, this option should be used with the empty string (""). The maximum password size is determined by the digest size of the chosen name hash algorithm in the cryptographic profile (cf., fapi-profile(5)). For example, choos- ing SHA256 as hash algorithm, allows passwords of a maximum size of 32 characters. * -p, --entityPath=STRING: The path identifying the entity to modify. COMMON OPTIONS This collection of options are common to all tss2 programs and provide in- formation that many users may expect. * -h, --help [man|no-man]: Display the tools manpage. By default, it at- tempts to invoke the manpager for the tool, however, on failure will out- put a short tool summary. This is the same behavior if the "man" option argument is specified, however if explicit "man" is requested, the tool will provide errors from man on stderr. If the "no-man" option if speci- fied, or the manpager fails, the short options will be output to stdout. To successfully use the manpages feature requires the manpages to be in- stalled or on MANPATH, See man(1) for more details. * -v, --version: Display version information for this tool, supported tctis and exit. EXAMPLES Change a password for an entity HS/SRK/myRSACryptKey to M1 tss2_changeauth --entityPath=HS/SRK/myRSACryptKey --authValue=M1 Change a password for an entity HS/SRK/myRSACryptKey and ask the user to en- ter the password. tss2_changeauth --entityPath=HS/SRK/myRSACryptKey RETURNS 0 on success or 1 on failure. BUGS Github Issues (https://github.com/tpm2-software/tpm2-tools/issues) HELP See the Mailing List (https://lists.linuxfoundation.org/mail- man/listinfo/tpm2) tpm2-tools APRIL 2019 tss2_changeauth(1)
NAME | SYNOPSIS | SEE ALSO | DESCRIPTION | OPTIONS | COMMON OPTIONS | EXAMPLES | RETURNS | BUGS | HELP
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