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| author | Taehee Yoo <ap420073@gmail.com> | 2023-01-01 10:12:50 +0100 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-01-06 10:15:47 +0100 |
| commit | 35344cf30f2b080f75b4097eebcd7567e54bce22 (patch) | |
| tree | 19105b49700509825512761828e9eae2998598b7 /crypto/aria_generic.c | |
| parent | crypto: x86/aria - add keystream array into request ctx (diff) | |
| download | linux-35344cf30f2b080f75b4097eebcd7567e54bce22.tar.xz linux-35344cf30f2b080f75b4097eebcd7567e54bce22.zip | |
crypto: x86/aria - do not use magic number offsets of aria_ctx
aria-avx assembly code accesses members of aria_ctx with magic number
offset. If the shape of struct aria_ctx is changed carelessly,
aria-avx will not work.
So, we need to ensure accessing members of aria_ctx with correct
offset values, not with magic numbers.
It adds ARIA_CTX_enc_key, ARIA_CTX_dec_key, and ARIA_CTX_rounds in the
asm-offsets.c So, correct offset definitions will be generated.
aria-avx assembly code can access members of aria_ctx safely with
these definitions.
Signed-off-by: Taehee Yoo <ap420073@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'crypto/aria_generic.c')
| -rw-r--r-- | crypto/aria_generic.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/crypto/aria_generic.c b/crypto/aria_generic.c index 4cc29b82b99d..d96dfc4fdde6 100644 --- a/crypto/aria_generic.c +++ b/crypto/aria_generic.c @@ -178,6 +178,10 @@ int aria_set_key(struct crypto_tfm *tfm, const u8 *in_key, unsigned int key_len) if (key_len != 16 && key_len != 24 && key_len != 32) return -EINVAL; + BUILD_BUG_ON(sizeof(ctx->enc_key) != 272); + BUILD_BUG_ON(sizeof(ctx->dec_key) != 272); + BUILD_BUG_ON(sizeof(int) != sizeof(ctx->rounds)); + ctx->key_length = key_len; ctx->rounds = (key_len + 32) / 4; |