diff options
Diffstat (limited to 'fs/crypto/hkdf.c')
| -rw-r--r-- | fs/crypto/hkdf.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/crypto/hkdf.c b/fs/crypto/hkdf.c index 855a0f4b7318..b1ef506cd341 100644 --- a/fs/crypto/hkdf.c +++ b/fs/crypto/hkdf.c @@ -1,13 +1,15 @@ // SPDX-License-Identifier: GPL-2.0 /* - * This is used to derive keys from the fscrypt master keys. + * This is used to derive keys from the fscrypt master keys (or from the + * "software secrets" which hardware derives from the fscrypt master keys, in + * the case that the fscrypt master keys are hardware-wrapped keys). * * Copyright 2019 Google LLC */ #include <crypto/hash.h> -#include <crypto/sha2.h> #include <crypto/hkdf.h> +#include <crypto/sha2.h> #include "fscrypt_private.h" @@ -56,7 +58,7 @@ int fscrypt_init_hkdf(struct fscrypt_hkdf *hkdf, const u8 *master_key, u8 prk[HKDF_HASHLEN]; int err; - hmac_tfm = crypto_alloc_shash(HKDF_HMAC_ALG, 0, 0); + hmac_tfm = crypto_alloc_shash(HKDF_HMAC_ALG, 0, FSCRYPT_CRYPTOAPI_MASK); if (IS_ERR(hmac_tfm)) { fscrypt_err(NULL, "Error allocating " HKDF_HMAC_ALG ": %ld", PTR_ERR(hmac_tfm)); |