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| author | Ard Biesheuvel <ard.biesheuvel@linaro.org> | 2019-07-02 21:41:46 +0200 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2019-07-26 06:58:36 +0200 |
| commit | 9467a3150cf4afca638673e099af71e8c493a3a0 (patch) | |
| tree | 733c93a49a5ce84ec11e760a8e629a8af981157a | |
| parent | crypto: aes-generic - unexport last-round AES tables (diff) | |
| download | linux-9467a3150cf4afca638673e099af71e8c493a3a0.tar.xz linux-9467a3150cf4afca638673e099af71e8c493a3a0.zip | |
crypto: lib/aes - export sbox and inverse sbox
There are a few copies of the AES S-boxes floating around, so export
the ones from the AES library so that we can reuse them in other
modules.
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | include/crypto/aes.h | 3 | ||||
| -rw-r--r-- | lib/crypto/aes.c | 6 |
2 files changed, 9 insertions, 0 deletions
diff --git a/include/crypto/aes.h b/include/crypto/aes.h index df8426fd8051..8e0f4cf948e5 100644 --- a/include/crypto/aes.h +++ b/include/crypto/aes.h @@ -67,4 +67,7 @@ void aes_encrypt(const struct crypto_aes_ctx *ctx, u8 *out, const u8 *in); */ void aes_decrypt(const struct crypto_aes_ctx *ctx, u8 *out, const u8 *in); +extern const u8 crypto_aes_sbox[]; +extern const u8 crypto_aes_inv_sbox[]; + #endif diff --git a/lib/crypto/aes.c b/lib/crypto/aes.c index 9928b23e0a8a..4e100af38c51 100644 --- a/lib/crypto/aes.c +++ b/lib/crypto/aes.c @@ -82,6 +82,12 @@ static volatile const u8 __cacheline_aligned aes_inv_sbox[] = { 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d, }; +extern const u8 crypto_aes_sbox[256] __alias(aes_sbox); +extern const u8 crypto_aes_inv_sbox[256] __alias(aes_inv_sbox); + +EXPORT_SYMBOL(crypto_aes_sbox); +EXPORT_SYMBOL(crypto_aes_inv_sbox); + static u32 mul_by_x(u32 w) { u32 x = w & 0x7f7f7f7f; |