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authorHerbert Xu <herbert@gondor.apana.org.au>2025-05-06 10:05:08 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2025-05-06 19:05:24 +0800
commit9b9d4ef0cf750c514735bfd77745387b95cbddda (patch)
tree74b556f0d22103c7d9ebcad1d1468158541db436
parent64745a9ca890ed60d78162ec511e1983e1946d73 (diff)
crypto: lib/poly1305 - Build main library on LIB_POLY1305 and split generic code out
Split the lib poly1305 code just as was done with sha256. Make the main library code conditional on LIB_POLY1305 instead of LIB_POLY1305_GENERIC. Reported-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Fixes: 10a6d72ea355 ("crypto: lib/poly1305 - Use block-only interface") Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
-rw-r--r--lib/crypto/Makefile9
-rw-r--r--lib/crypto/poly1305-generic.c24
-rw-r--r--lib/crypto/poly1305.c8
3 files changed, 30 insertions, 11 deletions
diff --git a/lib/crypto/Makefile b/lib/crypto/Makefile
index 71d3d05d666a..ff4aa22e5ccc 100644
--- a/lib/crypto/Makefile
+++ b/lib/crypto/Makefile
@@ -40,11 +40,14 @@ libcurve25519-y += curve25519.o
obj-$(CONFIG_CRYPTO_LIB_DES) += libdes.o
libdes-y := des.o
-obj-$(CONFIG_CRYPTO_LIB_POLY1305_GENERIC) += libpoly1305.o
-libpoly1305-y := poly1305-donna32.o
-libpoly1305-$(CONFIG_ARCH_SUPPORTS_INT128) := poly1305-donna64.o
+obj-$(CONFIG_CRYPTO_LIB_POLY1305) += libpoly1305.o
libpoly1305-y += poly1305.o
+obj-$(CONFIG_CRYPTO_LIB_POLY1305_GENERIC) += libpoly1305-generic.o
+libpoly1305-generic-y := poly1305-donna32.o
+libpoly1305-generic-$(CONFIG_ARCH_SUPPORTS_INT128) := poly1305-donna64.o
+libpoly1305-generic-y += poly1305-generic.o
+
obj-$(CONFIG_CRYPTO_LIB_SHA1) += libsha1.o
libsha1-y := sha1.o
diff --git a/lib/crypto/poly1305-generic.c b/lib/crypto/poly1305-generic.c
new file mode 100644
index 000000000000..a73f700fa1fb
--- /dev/null
+++ b/lib/crypto/poly1305-generic.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Poly1305 authenticator algorithm, RFC7539
+ *
+ * Copyright (C) 2015 Martin Willi
+ *
+ * Based on public domain code by Andrew Moon and Daniel J. Bernstein.
+ */
+
+#include <crypto/internal/poly1305.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+
+void poly1305_block_init_generic(struct poly1305_block_state *desc,
+ const u8 raw_key[POLY1305_BLOCK_SIZE])
+{
+ poly1305_core_init(&desc->h);
+ poly1305_core_setkey(&desc->core_r, raw_key);
+}
+EXPORT_SYMBOL_GPL(poly1305_block_init_generic);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Martin Willi <martin@strongswan.org>");
+MODULE_DESCRIPTION("Poly1305 algorithm (generic implementation)");
diff --git a/lib/crypto/poly1305.c b/lib/crypto/poly1305.c
index 4c9996864090..5f2f2af3b59f 100644
--- a/lib/crypto/poly1305.c
+++ b/lib/crypto/poly1305.c
@@ -14,14 +14,6 @@
#include <linux/string.h>
#include <linux/unaligned.h>
-void poly1305_block_init_generic(struct poly1305_block_state *desc,
- const u8 raw_key[POLY1305_BLOCK_SIZE])
-{
- poly1305_core_init(&desc->h);
- poly1305_core_setkey(&desc->core_r, raw_key);
-}
-EXPORT_SYMBOL_GPL(poly1305_block_init_generic);
-
void poly1305_init(struct poly1305_desc_ctx *desc,
const u8 key[POLY1305_KEY_SIZE])
{