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m_I|+ /* SPDX-License-Identifier: GPL-2.0-or-later */
/* Kerberos 5 crypto
*
* Copyright (C) 2025 Red Hat, Inc. All Rights Reserved.
* Written by David Howells (dhowells@redhat.com)
*/
#ifndef _CRYPTO_KRB5_H
#define _CRYPTO_KRB5_H
#include
#include
#include
struct crypto_shash;
struct scatterlist;
/*
* Per Kerberos v5 protocol spec crypto types from the wire. These get mapped
* to linux kernel crypto routines.
*/
#define KRB5_ENCTYPE_NULL 0x0000
#define KRB5_ENCTYPE_DES_CBC_CRC 0x0001 /* DES cbc mode with CRC-32 */
#define KRB5_ENCTYPE_DES_CBC_MD4 0x0002 /* DES cbc mode with RSA-MD4 */
#define KRB5_ENCTYPE_DES_CBC_MD5 0x0003 /* DES cbc mode with RSA-MD5 */
#define KRB5_ENCTYPE_DES_CBC_RAW 0x0004 /* DES cbc mode raw */
/* XXX deprecated? */
#define KRB5_ENCTYPE_DES3_CBC_SHA 0x0005 /* DES-3 cbc mode with NIST-SHA */
#define KRB5_ENCTYPE_DES3_CBC_RAW 0x0006 /* DES-3 cbc mode raw */
#define KRB5_ENCTYPE_DES_HMAC_SHA1 0x0008
#define KRB5_ENCTYPE_DES3_CBC_SHA1 0x0010
#define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA1_96 0x0011
#define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA1_96 0x0012
#define KRB5_ENCTYPE_AES128_CTS_HMAC_SHA256_128 0x0013
#define KRB5_ENCTYPE_AES256_CTS_HMAC_SHA384_192 0x0014
#define KRB5_ENCTYPE_ARCFOUR_HMAC 0x0017
#define KRB5_ENCTYPE_ARCFOUR_HMAC_EXP 0x0018
#define KRB5_ENCTYPE_CAMELLIA128_CTS_CMAC 0x0019
#define KRB5_ENCTYPE_CAMELLIA256_CTS_CMAC 0x001a
#define KRB5_ENCTYPE_UNKNOWN 0x01ff
#define KRB5_CKSUMTYPE_CRC32 0x0001
#define KRB5_CKSUMTYPE_RSA_MD4 0x0002
#define KRB5_CKSUMTYPE_RSA_MD4_DES 0x0003
#define KRB5_CKSUMTYPE_DESCBC 0x0004
#define KRB5_CKSUMTYPE_RSA_MD5 0x0007
#define KRB5_CKSUMTYPE_RSA_MD5_DES 0x0008
#define KRB5_CKSUMTYPE_NIST_SHA 0x0009
#define KRB5_CKSUMTYPE_HMAC_SHA1_DES3 0x000c
#define KRB5_CKSUMTYPE_HMAC_SHA1_96_AES128 0x000f
#define KRB5_CKSUMTYPE_HMAC_SHA1_96_AES256 0x0010
#define KRB5_CKSUMTYPE_CMAC_CAMELLIA128 0x0011
#define KRB5_CKSUMTYPE_CMAC_CAMELLIA256 0x0012
#define KRB5_CKSUMTYPE_HMAC_SHA256_128_AES128 0x0013
#define KRB5_CKSUMTYPE_HMAC_SHA384_192_AES256 0x0014
#define KRB5_CKSUMTYPE_HMAC_MD5_ARCFOUR -138 /* Microsoft md5 hmac cksumtype */
/*
* Constants used for key derivation
*/
/* from rfc3961 */
#define KEY_USAGE_SEED_CHECKSUM (0x99)
#define KEY_USAGE_SEED_ENCRYPTION (0xAA)
#define KEY_USAGE_SEED_INTEGRITY (0x55)
/*
* Mode of operation.
*/
enum krb5_crypto_mode {
KRB5_CHECKSUM_MODE, /* Checksum only */
KRB5_ENCRYPT_MODE, /* Fully encrypted, possibly with integrity checksum */
};
struct krb5_buffer {
unsigned int len;
void *data;
};
/*
* Kerberos encoding type definition.
*/
struct krb5_enctype {
int etype; /* Encryption (key) type */
int cty