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| author | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2015-11-05 20:43:06 +0100 |
|---|---|---|
| committer | Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com> | 2015-12-20 14:27:12 +0100 |
| commit | 5ca4c20cfd37bac6486de040e9951b3b34755238 (patch) | |
| tree | 1ee427b120ae979e1cd30b7bc47c31426066deae /Documentation/security | |
| parent | keys, trusted: fix: *do not* allow duplicate key options (diff) | |
| download | linux-5ca4c20cfd37bac6486de040e9951b3b34755238.tar.xz linux-5ca4c20cfd37bac6486de040e9951b3b34755238.zip | |
keys, trusted: select hash algorithm for TPM2 chips
Added 'hash=' option for selecting the hash algorithm for add_key()
syscall and documentation for it.
Added entry for sm3-256 to the following tables in order to support
TPM_ALG_SM3_256:
* hash_algo_name
* hash_digest_size
Includes support for the following hash algorithms:
* sha1
* sha256
* sha384
* sha512
* sm3-256
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
Tested-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: James Morris <james.l.morris@oracle.com>
Reviewed-by: Mimi Zohar <zohar@linux.vnet.ibm.com>
Acked-by: Peter Huewe <peterhuewe@gmx.de>
Diffstat (limited to 'Documentation/security')
| -rw-r--r-- | Documentation/security/keys-trusted-encrypted.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/security/keys-trusted-encrypted.txt b/Documentation/security/keys-trusted-encrypted.txt index e105ae97a4f5..fd2565b301e8 100644 --- a/Documentation/security/keys-trusted-encrypted.txt +++ b/Documentation/security/keys-trusted-encrypted.txt @@ -38,6 +38,9 @@ Usage: pcrlock= pcr number to be extended to "lock" blob migratable= 0|1 indicating permission to reseal to new PCR values, default 1 (resealing allowed) + hash= hash algorithm name as a string. For TPM 1.x the only + allowed value is sha1. For TPM 2.x the allowed values + are sha1, sha256, sha384, sha512 and sm3-256. "keyctl print" returns an ascii hex copy of the sealed key, which is in standard TPM_STORED_DATA format. The key length for new keys are always in bytes. |