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authorJason A. Donenfeld <Jason@zx2c4.com>2019-12-11 10:26:39 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2019-12-12 14:07:14 +0800
commit84faa307249b341f6ad8de3e1869d77a65e26669 (patch)
treea6baedba9fe9f2c87c47dd0aacdf48f9af361e8b /arch/arm
parent8a6b8f4d7a891ac66db4f97900a86b55c84a5802 (diff)
crypto: arm/curve25519 - add arch-specific key generation function
Somehow this was forgotten when Zinc was being split into oddly shaped pieces, resulting in linker errors. The x86_64 glue has a specific key generation implementation, but the Arm one does not. However, it can still receive the NEON speedups by calling the ordinary DH function using the base point. Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/crypto/curve25519-glue.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/crypto/curve25519-glue.c b/arch/arm/crypto/curve25519-glue.c
index f3f42cf3b893..776ae07e0469 100644
--- a/arch/arm/crypto/curve25519-glue.c
+++ b/arch/arm/crypto/curve25519-glue.c
@@ -38,6 +38,13 @@ void curve25519_arch(u8 out[CURVE25519_KEY_SIZE],
}
EXPORT_SYMBOL(curve25519_arch);
+void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
+ const u8 secret[CURVE25519_KEY_SIZE])
+{
+ return curve25519_arch(pub, secret, curve25519_base_point);
+}
+EXPORT_SYMBOL(curve25519_base_arch);
+
static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
unsigned int len)
{