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authorHui Tang <tanghui20@huawei.com>2021-05-22 05:44:30 +0300
committerHerbert Xu <herbert@gondor.apana.org.au>2021-05-28 10:11:47 +0300
commit8154132521e9cd6d28a7e9778c4ae23b716994bf (patch)
tree66485e4329ff28fd900fa53cb2aaeab8d942fcc6 /crypto
parent8fd28fa5046b377039d5bbc0ab2f625dec703980 (diff)
downloadlinux-8154132521e9cd6d28a7e9778c4ae23b716994bf.tar.xz
crypto: ecdh - register NIST P384 tfm
Add ecdh_nist_p384_init_tfm and register and unregister P384 tfm. Signed-off-by: Hui Tang <tanghui20@huawei.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto')
-rw-r--r--crypto/ecdh.c33
1 files changed, 33 insertions, 0 deletions
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index b6f493e82812..c6f61c2211dc 100644
--- a/crypto/ecdh.c
+++ b/crypto/ecdh.c
@@ -173,6 +173,31 @@ static struct kpp_alg ecdh_nist_p256 = {
},
};
+static int ecdh_nist_p384_init_tfm(struct crypto_kpp *tfm)
+{
+ struct ecdh_ctx *ctx = ecdh_get_ctx(tfm);
+
+ ctx->curve_id = ECC_CURVE_NIST_P384;
+ ctx->ndigits = ECC_CURVE_NIST_P384_DIGITS;
+
+ return 0;
+}
+
+static struct kpp_alg ecdh_nist_p384 = {
+ .set_secret = ecdh_set_secret,
+ .generate_public_key = ecdh_compute_value,
+ .compute_shared_secret = ecdh_compute_value,
+ .max_size = ecdh_max_size,
+ .init = ecdh_nist_p384_init_tfm,
+ .base = {
+ .cra_name = "ecdh-nist-p384",
+ .cra_driver_name = "ecdh-nist-p384-generic",
+ .cra_priority = 100,
+ .cra_module = THIS_MODULE,
+ .cra_ctxsize = sizeof(struct ecdh_ctx),
+ },
+};
+
static bool ecdh_nist_p192_registered;
static int ecdh_init(void)
@@ -187,8 +212,15 @@ static int ecdh_init(void)
if (ret)
goto nist_p256_error;
+ ret = crypto_register_kpp(&ecdh_nist_p384);
+ if (ret)
+ goto nist_p384_error;
+
return 0;
+nist_p384_error:
+ crypto_unregister_kpp(&ecdh_nist_p256);
+
nist_p256_error:
if (ecdh_nist_p192_registered)
crypto_unregister_kpp(&ecdh_nist_p192);
@@ -200,6 +232,7 @@ static void ecdh_exit(void)
if (ecdh_nist_p192_registered)
crypto_unregister_kpp(&ecdh_nist_p192);
crypto_unregister_kpp(&ecdh_nist_p256);
+ crypto_unregister_kpp(&ecdh_nist_p384);
}
subsys_initcall(ecdh_init);