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crypto: lib/curve25519 - re-add selftests

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Somehow these were dropped when Zinc was being integrated, which is
problematic, because testing the library interface for Curve25519 is
important.. This commit simply adds them back and wires them in in the
same way that the blake2s selftests are wired in.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Jason A. Donenfeld 2019-12-16 19:53:26 +01:00 committed by Herbert Xu
parent c782937e92
commit aa127963f1
3 changed files with 1339 additions and 0 deletions
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1
lib/crypto/Makefile
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@ -36,4 +36,5 @@ libsha256-y := sha256.o
ifneq ($(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS),y)
libblake2s-y += blake2s-selftest.o
libchacha20poly1305-y += chacha20poly1305-selftest.o
libcurve25519-y += curve25519-selftest.o
endif

1321
lib/crypto/curve25519-selftest.c Normal file
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File diff suppressed because it is too large Load Diff

17
lib/crypto/curve25519.c
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@ -13,6 +13,8 @@
#include <linux/module.h>
#include <linux/init.h>
bool curve25519_selftest(void);
const u8 curve25519_null_point[CURVE25519_KEY_SIZE] __aligned(32) = { 0 };
const u8 curve25519_base_point[CURVE25519_KEY_SIZE] __aligned(32) = { 9 };
@ -20,6 +22,21 @@ EXPORT_SYMBOL(curve25519_null_point);
EXPORT_SYMBOL(curve25519_base_point);
EXPORT_SYMBOL(curve25519_generic);
static int __init mod_init(void)
{
if (!IS_ENABLED(CONFIG_CRYPTO_MANAGER_DISABLE_TESTS) &&
WARN_ON(!curve25519_selftest()))
return -ENODEV;
return 0;
}
static void __exit mod_exit(void)
{
}
module_init(mod_init);
module_exit(mod_exit);
MODULE_LICENSE("GPL v2");
MODULE_DESCRIPTION("Curve25519 scalar multiplication");
MODULE_AUTHOR("Jason A. Donenfeld <Jason@zx2c4.com>");