diff options
| author | Chuck Lever | 2023-01-15 12:22:43 -0500 |
|---|---|---|
| committer | Chuck Lever | 2023-02-20 09:20:43 -0500 |
| commit | a40cf7530d3104793f9361e69e84ada7960724f2 (patch) | |
| tree | 10596e99e15f34ed07be0407d1cae635a4083e2e /include | |
| parent | dfb632432a9b2548b5a4429598bb19edf58122f0 (diff) | |
SUNRPC: Add gk5e definitions for RFC 8009 encryption types
Fill in entries in the supported_gss_krb5_enctypes array for the
encryption types defined in RFC 8009. These new enctypes use the
SHA-256 and SHA-384 message digest algorithms (as defined in
FIPS-180) instead of the deprecated SHA-1 algorithm, and are thus
more secure.
Note that NIST has scheduled SHA-1 for deprecation:
https://www.nist.gov/news-events/news/2022/12/nist-retires-sha-1-cryptographic-algorithm
Thus these new encryption types are placed under a separate CONFIG
option to enable distributors to separately introduce support for
the AES-SHA2 enctypes and deprecate support for the current set of
AES-SHA1 encryption types as their user space allows.
As this implementation is still a "beta", the default is to not
build it automatically.
Tested-by: Scott Mayhew <smayhew@redhat.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/sunrpc/gss_krb5.h | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/include/linux/sunrpc/gss_krb5.h b/include/linux/sunrpc/gss_krb5.h index 3e97d2a7c87d..8ff397b5c04b 100644 --- a/include/linux/sunrpc/gss_krb5.h +++ b/include/linux/sunrpc/gss_krb5.h @@ -54,8 +54,8 @@ /* Maximum key length (in bytes) for the supported crypto algorithms */ #define GSS_KRB5_MAX_KEYLEN (32) -/* Maximum checksum function output for the supported crypto algorithms */ -#define GSS_KRB5_MAX_CKSUM_LEN (20) +/* Maximum checksum function output for the supported enctypes */ +#define GSS_KRB5_MAX_CKSUM_LEN (24) /* Maximum blocksize for the supported crypto algorithms */ #define GSS_KRB5_MAX_BLOCKSIZE (16) @@ -160,6 +160,12 @@ enum seal_alg { SEAL_ALG_DES3KD = 0x0002 }; +/* + * These values are assigned by IANA and published via the + * subregistry at the link below: + * + * https://www.iana.org/assignments/kerberos-parameters/kerberos-parameters.xhtml#kerberos-parameters-2 + */ #define CKSUMTYPE_CRC32 0x0001 #define CKSUMTYPE_RSA_MD4 0x0002 #define CKSUMTYPE_RSA_MD4_DES 0x0003 @@ -170,6 +176,8 @@ enum seal_alg { #define CKSUMTYPE_HMAC_SHA1_DES3 0x000c #define CKSUMTYPE_HMAC_SHA1_96_AES128 0x000f #define CKSUMTYPE_HMAC_SHA1_96_AES256 0x0010 +#define CKSUMTYPE_HMAC_SHA256_128_AES128 0x0013 +#define CKSUMTYPE_HMAC_SHA384_192_AES256 0x0014 #define CKSUMTYPE_HMAC_MD5_ARCFOUR -138 /* Microsoft md5 hmac cksumtype */ /* from gssapi_err_krb5.h */ @@ -190,6 +198,11 @@ enum seal_alg { /* per Kerberos v5 protocol spec crypto types from the wire. * these get mapped to linux kernel crypto routines. + * + * These values are assigned by IANA and published via the + * subregistry at the link below: + * + * https://www.iana.org/assignments/kerberos-parameters/kerberos-parameters.xhtml#kerberos-parameters-1 */ #define ENCTYPE_NULL 0x0000 #define ENCTYPE_DES_CBC_CRC 0x0001 /* DES cbc mode with CRC-32 */ @@ -203,6 +216,8 @@ enum seal_alg { #define ENCTYPE_DES3_CBC_SHA1 0x0010 #define ENCTYPE_AES128_CTS_HMAC_SHA1_96 0x0011 #define ENCTYPE_AES256_CTS_HMAC_SHA1_96 0x0012 +#define ENCTYPE_AES128_CTS_HMAC_SHA256_128 0x0013 +#define ENCTYPE_AES256_CTS_HMAC_SHA384_192 0x0014 #define ENCTYPE_ARCFOUR_HMAC 0x0017 #define ENCTYPE_ARCFOUR_HMAC_EXP 0x0018 #define ENCTYPE_UNKNOWN 0x01ff |