xnu-2050.7.9.tar.gz

[apple/xnu.git] / libkern / libkern / crypto / des.h

diff --git a/libkern/libkern/crypto/des.h b/libkern/libkern/crypto/des.h
new file mode 100644 (file)
index 0000000..960e60e
--- /dev/null
+++ b/libkern/libkern/crypto/des.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2012 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
+ */
+
+#ifndef _CRYPTO_DES_H
+#define _CRYPTO_DES_H
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#include <corecrypto/ccmode.h>
+#include <corecrypto/ccdes.h>
+#include <corecrypto/ccn.h>
+
+/* must be 32bit quantity */
+#define DES_LONG u_int32_t
+
+typedef unsigned char des_cblock[8];
+
+/* Unholy hack: this is currently the size for the only implementation of DES in corecrypto */
+#define DES_ECB_CTX_MAX_SIZE (64*4)
+#define DES_CBC_CTX_MAX_SIZE (ccn_sizeof_size(sizeof(struct ccmode_ecb)) + ccn_sizeof_size(CCDES_BLOCK_SIZE) + ccn_sizeof_size(DES_ECB_CTX_MAX_SIZE))
+#define DES3_ECB_CTX_MAX_SIZE (64*4*3)
+#define DES3_CBC_CTX_MAX_SIZE (ccn_sizeof_size(sizeof(struct ccmode_ecb)) + ccn_sizeof_size(CCDES_BLOCK_SIZE) + ccn_sizeof_size(DES3_ECB_CTX_MAX_SIZE))
+
+
+typedef struct{
+       ccecb_ctx_decl(DES_ECB_CTX_MAX_SIZE, enc);
+       ccecb_ctx_decl(DES_ECB_CTX_MAX_SIZE, dec);
+} des_ecb_key_schedule;
+
+typedef struct{
+       cccbc_ctx_decl(DES_CBC_CTX_MAX_SIZE, enc);
+       cccbc_ctx_decl(DES_CBC_CTX_MAX_SIZE, dec);
+} des_cbc_key_schedule;
+
+typedef struct{
+       ccecb_ctx_decl(DES3_ECB_CTX_MAX_SIZE, enc);
+       ccecb_ctx_decl(DES3_ECB_CTX_MAX_SIZE, dec);
+} des3_ecb_key_schedule;
+
+typedef struct{
+       cccbc_ctx_decl(DES3_CBC_CTX_MAX_SIZE, enc);
+       cccbc_ctx_decl(DES3_CBC_CTX_MAX_SIZE, dec);
+} des3_cbc_key_schedule;
+
+/* Only here for backward compatibility with smb kext */
+typedef des_ecb_key_schedule des_key_schedule[1];
+#define des_set_key des_ecb_key_sched
+
+#define DES_ENCRYPT    1
+#define DES_DECRYPT    0
+
+
+/* Single DES ECB - 1 block */
+int des_ecb_key_sched(des_cblock *key, des_ecb_key_schedule *ks);
+void des_ecb_encrypt(des_cblock *in, des_cblock *out, des_ecb_key_schedule *ks, int encrypt);
+
+/* Triple DES ECB - 1 block */
+int des3_ecb_key_sched(des_cblock *key, des3_ecb_key_schedule *ks);
+void des3_ecb_encrypt(des_cblock *block, des_cblock *, des3_ecb_key_schedule *ks, int encrypt);
+
+/* Single DES CBC */
+int des_cbc_key_sched(des_cblock *key, des_cbc_key_schedule *ks);
+void des_cbc_encrypt(des_cblock *in, des_cblock *out, int32_t len,
+                                        des_cbc_key_schedule *ks, des_cblock *iv, des_cblock *retiv, int encrypt);
+
+/* Triple DES CBC */
+int des3_cbc_key_sched(des_cblock *key, des3_cbc_key_schedule *ks);
+void des3_cbc_encrypt(des_cblock *in, des_cblock *out, int32_t len,
+                                         des3_cbc_key_schedule *ks, des_cblock *iv, des_cblock *retiv, int encrypt);
+
+/* Single DES CBC-MAC */
+void des_cbc_cksum(des_cblock *in, des_cblock *out, int len, des_cbc_key_schedule *ks);
+
+void des_fixup_key_parity(des_cblock *key);
+int des_is_weak_key(des_cblock *key);
+// int des_set_key(des_cblock *, des_key_schedule); // Unsupported KPI.
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif