Add ecdh_nist_p384_init_tfm and register and unregister P384 tfm.
Signed-off-by: Hui Tang <tanghui20@xxxxxxxxxx>
---
crypto/ecdh.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index e2c4808..70f312e 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);
--
2.8.1
