From: Iuliana Prodan <iuliana.prodan@nxp.com>
To: Herbert Xu <herbert@gondor.apana.org.au>,
Horia Geanta <horia.geanta@nxp.com>,
Aymen Sghaier <aymen.sghaier@nxp.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Silvano Di Ninno <silvano.dininno@nxp.com>,
Franck Lenormand <franck.lenormand@nxp.com>,
linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-imx <linux-imx@nxp.com>,
Iuliana Prodan <iuliana.prodan@nxp.com>
Subject: [PATCH 0/2] crypto: caam - add tagged keys functionality and tk transformations for skcipher
Date: Mon, 13 Jul 2020 01:05:34 +0300 [thread overview]
Message-ID: <1594591536-531-1-git-send-email-iuliana.prodan@nxp.com> (raw)
Tagged keys are keys that contain metadata indicating what
they are and how to handle them using the new added tag_object API.
A tag object represents the metadata (or simply a header/configuration)
and the actual data (e.g. black key) obtained from hardware.
Patch #2 adds support, for tagged keys, to skcipher algorithms by
adding new transformations, with tk prefix to distinguish
between plaintext and tagged keys.
The tk_ transformations can be used directly by their name:
struct sockaddr_alg sa = {
.salg_family = AF_ALG,
.salg_type = "skcipher", /* this selects the symmetric cipher /
.salg_name = "tk(cbc(aes))" / this is the cipher name */
};
or for dm-crypt, e.g. using dmsetup:
dmsetup -v create encrypted --table "0 $(blockdev --getsz /dev/mmcblk2p10)
crypt capi:tk(cbc(aes))-plain :32:logon:seckey 0 /dev/mmcblk2p10 0 1
sector_size:512".
tk_ transformations will know how to handle tagged keys, by loading the
proper settings for KEY command.
Iuliana Prodan (2):
crypto: caam - add tag object functionality
crypto: caam - support tagged keys for skcipher algorithms
drivers/crypto/caam/Kconfig | 9 +++
drivers/crypto/caam/Makefile | 1 +
drivers/crypto/caam/caamalg.c | 107 ++++++++++++++++++++++++++++--
drivers/crypto/caam/caamalg_desc.c | 28 ++++++--
drivers/crypto/caam/desc.h | 4 +-
drivers/crypto/caam/desc_constr.h | 4 ++
drivers/crypto/caam/tag_object.c | 129 +++++++++++++++++++++++++++++++++++++
drivers/crypto/caam/tag_object.h | 99 ++++++++++++++++++++++++++++
8 files changed, 372 insertions(+), 9 deletions(-)
create mode 100644 drivers/crypto/caam/tag_object.c
create mode 100644 drivers/crypto/caam/tag_object.h
--
2.1.0
next reply other threads:[~2020-07-12 22:05 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-12 22:05 Iuliana Prodan [this message]
2020-07-12 22:05 ` [PATCH 1/2] crypto: caam - add tag object functionality Iuliana Prodan
2020-07-16 10:05 ` Horia Geantă
2020-07-12 22:05 ` [PATCH 2/2] crypto: caam - support tagged keys for skcipher algorithms Iuliana Prodan
2020-07-16 7:36 ` Herbert Xu
2020-07-16 10:35 ` Horia Geantă
2020-07-16 11:52 ` Herbert Xu
2020-07-16 12:07 ` Horia Geantă
2020-07-16 12:19 ` Herbert Xu
2020-07-16 12:24 ` Van Leeuwen, Pascal
2020-07-16 13:05 ` Herbert Xu
2020-07-16 14:12 ` Richard Weinberger
2020-09-14 6:38 ` Richard Weinberger
2020-09-15 13:42 ` Horia Geantă
2020-09-15 21:50 ` Richard Weinberger
2020-09-21 11:23 ` Horia Geantă
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