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Mon, 13 Mar 2023 14:26:59 +0000 (GMT) Message-ID: <32ec16c9c3caa731c3de69371de6318da7f7ea91.camel@linux.ibm.com> Subject: Re: [PATCH v5 6/6] integrity: machine keyring CA configuration From: Mimi Zohar To: Eric Snowberg , jarkko@kernel.org, dhowells@redhat.com, dwmw2@infradead.org Cc: herbert@gondor.apana.org.au, davem@davemloft.net, dmitry.kasatkin@gmail.com, paul@paul-moore.com, jmorris@namei.org, serge@hallyn.com, pvorel@suse.cz, kanth.ghatraju@oracle.com, konrad.wilk@oracle.com, erpalmer@linux.vnet.ibm.com, coxu@redhat.com, keyrings@vger.kernel.org, linux-kernel@vger.kernel.org, linux-crypto@vger.kernel.org, linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org Date: Mon, 13 Mar 2023 10:26:47 -0400 In-Reply-To: <20230302164652.83571-7-eric.snowberg@oracle.com> References: <20230302164652.83571-1-eric.snowberg@oracle.com> <20230302164652.83571-7-eric.snowberg@oracle.com> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.28.5 (3.28.5-18.el8) Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: AVn6e_N1RxRLy5krPqhqwYoTOHO05acB X-Proofpoint-GUID: Ns97NCTx73M2atYukwJYoFiNIAEjPIeb X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-03-13_06,2023-03-13_02,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 adultscore=0 lowpriorityscore=0 priorityscore=1501 mlxscore=0 impostorscore=0 malwarescore=0 bulkscore=0 mlxlogscore=999 clxscore=1011 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2303130112 Precedence: bulk List-ID: X-Mailing-List: linux-crypto@vger.kernel.org On Thu, 2023-03-02 at 11:46 -0500, Eric Snowberg wrote: > Add machine keyring CA restriction options to control the type of > keys that may be added to it. The motivation is separation of > certificate signing from code signing keys. Subsquent work will > limit certificates being loaded into the IMA keyring to code > signing keys used for signature verification. > > When no restrictions are selected, all Machine Owner Keys (MOK) are added > to the machine keyring. When CONFIG_INTEGRITY_CA_MACHINE_KEYRING is > selected, the CA bit must be true. Also the key usage must contain > keyCertSign, any other usage field may be set as well. > > When CONFIG_INTEGRITY_CA_MACHINE_KEYRING_MAX is selected, the CA bit must > be true. Also the key usage must contain keyCertSign and the > digitialSignature usage may not be set. > > Signed-off-by: Eric Snowberg Thanks, Eric. Acked-by: Mimi Zohar