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Message-ID: <20200609205837.osganry2tyzwvanz@altlinux.org>
Date: Tue, 9 Jun 2020 23:58:37 +0300
From: Vitaly Chikunov <vt@...linux.org>
To: Tianjia Zhang <tianjia.zhang@...ux.alibaba.com>
Cc: herbert@...dor.apana.org.au, davem@...emloft.net,
dhowells@...hat.com, mcoquelin.stm32@...il.com,
alexandre.torgue@...com, jmorris@...ei.org, serge@...lyn.com,
nramas@...ux.microsoft.com, tusharsu@...ux.microsoft.com,
zohar@...ux.ibm.com, gilad@...yossef.com, pvanleeuwen@...bus.com,
linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
keyrings@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
linux-arm-kernel@...ts.infradead.org,
linux-security-module@...r.kernel.org, zhang.jia@...ux.alibaba.com
Subject: Re: [PATCH v3 0/8] crpyto: introduce OSCCA certificate and SM2
asymmetric algorithm
Tianjia,
On Tue, Jun 09, 2020 at 09:48:47PM +0800, Tianjia Zhang wrote:
> Hello all,
>
> This new module implement the OSCCA certificate and SM2 public key
> algorithm. It was published by State Encryption Management Bureau, China.
> List of specifications for OSCCA certificate and SM2 elliptic curve
> public key cryptography:
>
> * GM/T 0003.1-2012
> * GM/T 0003.2-2012
> * GM/T 0003.3-2012
> * GM/T 0003.4-2012
> * GM/T 0003.5-2012
> * GM/T 0015-2012
> * GM/T 0009-2012
>
> IETF: https://tools.ietf.org/html/draft-shen-sm2-ecdsa-02
> oscca: http://www.oscca.gov.cn/sca/xxgk/2010-12/17/content_1002386.shtml
> scctc: http://www.gmbz.org.cn/main/bzlb.html
>
> These patchs add the OID object identifier defined by OSCCA. The
> x509 certificate supports sm2-with-sm3 type certificate parsing
> and verification.
>
> The sm2 algorithm is based on libgcrypt's mpi implementation, and has
> made some additions to the kernel's original mpi library, and added the
> implementation of ec to better support elliptic curve-like algorithms.
>
> sm2 has good support in both openssl and gnupg projects, and sm3 and sm4
> of the OSCCA algorithm family have also been implemented in the kernel.
>
> Among them, sm3 and sm4 have been well implemented in the kernel.
> This group of patches has newly introduced sm2. In order to implement
> sm2 more perfectly, I expanded the mpi library and introduced the
> ec implementation of the mpi library as the basic algorithm. Compared
> to the kernel's crypto/ecc.c, the implementation of mpi/ec.c is more
> complete and elegant, sm2 is implemented based on these algorithms.
Does it use constant-time algorithms?
Thanks,
>
> ---
> v3 changes:
> 1. integrity asymmetric digsig support sm2-with-sm3 algorithm.
> 2. remove unused sm2_set_priv_key().
> 3. rebase on mainline.
>
> v2 changes:
> 1. simplify the sm2 algorithm and only retain the verify function.
> 2. extract the sm2 certificate code into a separate file.
>
> Tianjia Zhang (8):
> crypto: sm3 - export crypto_sm3_final function
> lib/mpi: Extend the MPI library
> lib/mpi: Introduce ec implementation to MPI library
> crypto: sm2 - introduce OSCCA SM2 asymmetric cipher algorithm
> crypto: testmgr - support test with different ciphertext per
> encryption
> X.509: support OSCCA certificate parse
> X.509: support OSCCA sm2-with-sm3 certificate verification
> integrity: Asymmetric digsig supports SM2-with-SM3 algorithm
>
> crypto/Kconfig | 17 +
> crypto/Makefile | 8 +
> crypto/asymmetric_keys/Makefile | 1 +
> crypto/asymmetric_keys/public_key.c | 6 +
> crypto/asymmetric_keys/public_key_sm2.c | 59 +
> crypto/asymmetric_keys/x509_cert_parser.c | 14 +-
> crypto/asymmetric_keys/x509_public_key.c | 2 +
> crypto/sm2.c | 473 +++++++
> crypto/sm2signature.asn1 | 4 +
> crypto/sm3_generic.c | 7 +-
> crypto/testmgr.c | 7 +-
> include/crypto/public_key.h | 14 +
> include/crypto/sm2.h | 25 +
> include/crypto/sm3.h | 2 +
> include/linux/mpi.h | 193 +++
> include/linux/oid_registry.h | 6 +
> lib/mpi/Makefile | 6 +
> lib/mpi/ec.c | 1538 +++++++++++++++++++++
> lib/mpi/mpi-add.c | 207 +++
> lib/mpi/mpi-bit.c | 251 ++++
> lib/mpi/mpi-cmp.c | 46 +-
> lib/mpi/mpi-div.c | 259 ++++
> lib/mpi/mpi-internal.h | 53 +
> lib/mpi/mpi-inv.c | 143 ++
> lib/mpi/mpi-mod.c | 155 +++
> lib/mpi/mpi-mul.c | 166 +++
> lib/mpi/mpicoder.c | 336 +++++
> lib/mpi/mpih-div.c | 294 ++++
> lib/mpi/mpih-mul.c | 25 +
> lib/mpi/mpiutil.c | 204 +++
> security/integrity/digsig_asymmetric.c | 14 +-
> 31 files changed, 4517 insertions(+), 18 deletions(-)
> create mode 100644 crypto/asymmetric_keys/public_key_sm2.c
> create mode 100644 crypto/sm2.c
> create mode 100644 crypto/sm2signature.asn1
> create mode 100644 include/crypto/sm2.h
> create mode 100644 lib/mpi/ec.c
> create mode 100644 lib/mpi/mpi-add.c
> create mode 100644 lib/mpi/mpi-div.c
> create mode 100644 lib/mpi/mpi-inv.c
> create mode 100644 lib/mpi/mpi-mod.c
> create mode 100644 lib/mpi/mpi-mul.c
>
> --
> 2.17.1
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