39 lines
1.3 KiB
Diff
39 lines
1.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: "Jason A. Donenfeld" <Jason@zx2c4.com>
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Date: Wed, 11 Dec 2019 10:26:39 +0100
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Subject: [PATCH] crypto: arm/curve25519 - add arch-specific key generation
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function
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commit 84faa307249b341f6ad8de3e1869d77a65e26669 upstream.
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Somehow this was forgotten when Zinc was being split into oddly shaped
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pieces, resulting in linker errors. The x86_64 glue has a specific key
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generation implementation, but the Arm one does not. However, it can
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still receive the NEON speedups by calling the ordinary DH function
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using the base point.
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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Acked-by: Ard Biesheuvel <ardb@kernel.org>
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Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
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---
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arch/arm/crypto/curve25519-glue.c | 7 +++++++
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1 file changed, 7 insertions(+)
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--- a/arch/arm/crypto/curve25519-glue.c
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+++ b/arch/arm/crypto/curve25519-glue.c
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@@ -38,6 +38,13 @@ void curve25519_arch(u8 out[CURVE25519_K
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}
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EXPORT_SYMBOL(curve25519_arch);
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+void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
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+ const u8 secret[CURVE25519_KEY_SIZE])
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+{
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+ return curve25519_arch(pub, secret, curve25519_base_point);
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+}
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+EXPORT_SYMBOL(curve25519_base_arch);
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+
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static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
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unsigned int len)
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{
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