diff options
| author | Shyam Prasad N <sprasad@microsoft.com> | 2021-03-25 12:34:54 +0000 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2021-03-26 07:49:39 -0500 |
| commit | 45a4546c6167a2da348a31ca439d8a8ff773b6ea (patch) | |
| tree | ae8fd937da02955df6d6b0c54ef3aeae3036ed14 /fs/cifs/cifspdu.h | |
| parent | 0d02ec6b3136c73c09e7859f0d0e4e2c4c07b49b (diff) | |
cifs: Adjust key sizes and key generation routines for AES256 encryption
For AES256 encryption (GCM and CCM), we need to adjust the size of a few
fields to 32 bytes instead of 16 to accommodate the larger keys.
Also, the L value supplied to the key generator needs to be changed from
to 256 when these algorithms are used.
Keeping the ioctl struct for dumping keys of the same size for now.
Will send out a different patch for that one.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
CC: <stable@vger.kernel.org> # v5.10+
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/cifs/cifspdu.h')
| -rw-r--r-- | fs/cifs/cifspdu.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h index 64fe5a47b5e8..9adc74bd9f8f 100644 --- a/fs/cifs/cifspdu.h +++ b/fs/cifs/cifspdu.h @@ -147,6 +147,11 @@ */ #define SMB3_SIGN_KEY_SIZE (16) +/* + * Size of the smb3 encryption/decryption keys + */ +#define SMB3_ENC_DEC_KEY_SIZE (32) + #define CIFS_CLIENT_CHALLENGE_SIZE (8) #define CIFS_SERVER_CHALLENGE_SIZE (8) #define CIFS_HMAC_MD5_HASH_SIZE (16) |