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The SM2 algorithm has a single user in the kernel. However, it's
never been integrated properly with that user: asymmetric_keys.
The crux of the issue is that the way it computes its digest with
sm3 does not fit into the architecture of asymmetric_keys. As no
solution has been proposed, remove this algorithm.
It can be resubmitted when it is integrated properly into the
asymmetric_keys subsystem.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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In sm2_compute_z_digest() function, the newly allocated structure
mpi_ec_ctx is used, but forget to initialize it, which will cause
a crash when performing subsequent operations.
Fixes: e5221fa6a355 ("KEYS: asymmetric: Move sm2 code into x509_public_key")
Cc: stable@vger.kernel.org # v6.5
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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The sm2 certificate requires a modified digest. Move the code
for the hashing from the signature verification path into the
code where we generate the digest.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Add missing __init/__exit annotations to init/exit funcs.
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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For spdx
/* */ for *.h, // for *.c
Space before spdx tag
Replacements
paramenters to parameters
aymmetric to asymmetric
sigature to signature
boudary to boundary
compliled to compiled
eninges to engines
explicity to explicitly
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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SM3 generic library is stand-alone implementation, it is necessary
for the calculation of sm2 z digest to depends on SM3 library
instead of sm3-generic.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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SM2 module alloc ec->Q in sm2_set_pub_key(), when doing alg test in
test_akcipher_one(), it will set public key for every test vector,
and don't free ec->Q. This will cause a memory leak.
This patch alloc ec->Q in sm2_ec_ctx_init().
Fixes: ea7ecb66440b ("crypto: sm2 - introduce OSCCA SM2 asymmetric cipher algorithm")
Signed-off-by: Hongbo Li <herberthbli@tencent.com>
Reviewed-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This is an algorithm optimization. The reset operation when
setting the public key is repeated and redundant, so remove it.
At the same time, `sm2_ecc_os2ec()` is optimized to make the
function more simpler and more in line with the Linux code style.
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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This new module implement the SM2 public key algorithm. It was
published by State Encryption Management Bureau, China.
List of specifications for 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
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
Signed-off-by: Tianjia Zhang <tianjia.zhang@linux.alibaba.com>
Tested-by: Xufeng Zhang <yunbo.xufeng@linux.alibaba.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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