certs/Kconfig

   1 menu "Certificates for signature checking"
   2
   3 config MODULE_SIG_KEY
   4         string "File name or PKCS#11 URI of module signing key"
   5         default "certs/signing_key.pem"
   6         depends on MODULE_SIG
   7         help
   8          Provide the file name of a private key/certificate in PEM format,
   9          or a PKCS#11 URI according to RFC7512. The file should contain, or
  10          the URI should identify, both the certificate and its corresponding
  11          private key.
  12
  13          If this option is unchanged from its default "certs/signing_key.pem",
  14          then the kernel will automatically generate the private key and
  15          certificate as described in Documentation/module-signing.txt
  16
  17 config SYSTEM_TRUSTED_KEYRING
  18         bool "Provide system-wide ring of trusted keys"
  19         depends on KEYS
  20         help
  21           Provide a system keyring to which trusted keys can be added.  Keys in
  22           the keyring are considered to be trusted.  Keys may be added at will
  23           by the kernel from compiled-in data and from hardware key stores, but
  24           userspace may only add extra keys if those keys can be verified by
  25           keys already in the keyring.
  26
  27           Keys in this keyring are used by module signature checking.
  28
  29 config SYSTEM_TRUSTED_KEYS
  30         string "Additional X.509 keys for default system keyring"
  31         depends on SYSTEM_TRUSTED_KEYRING
  32         help
  33           If set, this option should be the filename of a PEM-formatted file
  34           containing trusted X.509 certificates to be included in the default
  35           system keyring. Any certificate used for module signing is implicitly
  36           also trusted.
  37
  38           NOTE: If you previously provided keys for the system keyring in the
  39           form of DER-encoded *.x509 files in the top-level build directory,
  40           those are no longer used. You will need to set this option instead.
  41
  42 endmenu