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| author | Corentin LABBE <clabbe.montjoie@gmail.com> | 2017-05-19 09:53:23 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-05-23 07:52:05 +0300 |
| commit | 03d7db5654aefb78bf2ded62e2187833fda2a6cc (patch) | |
| tree | 56ad7f884c9471940518e5e69bf92c2ae316397e | |
| parent | 9417cd1c517a89ccfb5cc3d3f2a0e50fc64f3445 (diff) | |
| download | linux-03d7db5654aefb78bf2ded62e2187833fda2a6cc.tar.xz | |
crypto: hmac - add hmac IPAD/OPAD constant
Many HMAC users directly use directly 0x36/0x5c values.
It's better with crypto to use a name instead of directly some crypto
constant.
This patch simply add HMAC_IPAD_VALUE/HMAC_OPAD_VALUE defines in a new
include file "crypto/hmac.h" and use them in crypto/hmac.c
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
| -rw-r--r-- | crypto/hmac.c | 5 | ||||
| -rw-r--r-- | include/crypto/hmac.h | 7 |
2 files changed, 10 insertions, 2 deletions
diff --git a/crypto/hmac.c b/crypto/hmac.c index 72e38c098bb3..92871dc2a63e 100644 --- a/crypto/hmac.c +++ b/crypto/hmac.c @@ -16,6 +16,7 @@ * */ +#include <crypto/hmac.h> #include <crypto/internal/hash.h> #include <crypto/scatterwalk.h> #include <linux/err.h> @@ -74,8 +75,8 @@ static int hmac_setkey(struct crypto_shash *parent, memcpy(opad, ipad, bs); for (i = 0; i < bs; i++) { - ipad[i] ^= 0x36; - opad[i] ^= 0x5c; + ipad[i] ^= HMAC_IPAD_VALUE; + opad[i] ^= HMAC_OPAD_VALUE; } return crypto_shash_init(shash) ?: diff --git a/include/crypto/hmac.h b/include/crypto/hmac.h new file mode 100644 index 000000000000..ef09f7938204 --- /dev/null +++ b/include/crypto/hmac.h @@ -0,0 +1,7 @@ +#ifndef _CRYPTO_HMAC_H +#define _CRYPTO_HMAC_H + +#define HMAC_IPAD_VALUE 0x36 +#define HMAC_OPAD_VALUE 0x5c + +#endif /* _CRYPTO_HMAC_H */ |