1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  24  */
  25 
  26 #ifndef _DH_IMPL_H
  27 #define _DH_IMPL_H
  28 
  29 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32 
  33 #include <sys/types.h>
  34 #include <bignum.h>
  35 
  36 #define MIN_DH_KEYLENGTH_IN_BYTES       8
  37 #define MAX_DH_KEYLENGTH_IN_BYTES       2048
  38 #define DH_MIN_KEY_LEN          64
  39 #define DH_MAX_KEY_LEN          16384
  40 
  41 #ifdef _KERNEL
  42 
  43 #include <sys/sunddi.h>
  44 #include <sys/crypto/common.h>
  45 
  46 #define CK_RV                   ulong_t
  47 
  48 #define CKR_OK                  CRYPTO_SUCCESS
  49 #define CKR_ARGUMENTS_BAD       CRYPTO_ARGUMENTS_BAD
  50 #define CKR_ATTRIBUTE_TYPE_INVALID      CRYPTO_ATTRIBUTE_TYPE_INVALID
  51 #define CKR_ATTRIBUTE_VALUE_INVALID     CRYPTO_ATTRIBUTE_VALUE_INVALID
  52 #define CKR_DEVICE_ERROR        CRYPTO_DEVICE_ERROR
  53 #define CKR_GENERAL_ERROR       CRYPTO_GENERAL_ERROR
  54 #define CKR_HOST_MEMORY         CRYPTO_HOST_MEMORY
  55 #define CKR_KEY_SIZE_RANGE      CRYPTO_KEY_SIZE_RANGE
  56 
  57 int random_get_bytes(uint8_t *ran_out, size_t ran_len);
  58 int random_get_pseudo_bytes(uint8_t *ran_out, size_t ran_len);
  59 
  60 #else
  61 
  62 #include <security/cryptoki.h>
  63 #include <security/pkcs11t.h>
  64 
  65 #endif  /* _KERNEL */
  66 
  67 
  68 /* DH key using BIGNUM representations */
  69 typedef struct {
  70         int     size;           /* key size in bits */
  71         BIGNUM  p;              /* p (prime) */
  72         BIGNUM  g;              /* g (base) */
  73         BIGNUM  x;              /* private value (random) */
  74         BIGNUM  y;              /* public value (= g^x mod p) */
  75 } DHkey;
  76 
  77 /* DH key using byte string representations, useful for parameter lists */
  78 typedef struct {
  79         uint32_t prime_bits;    /* size */
  80         uchar_t *prime;         /* p */
  81         uint32_t base_bytes;
  82         uchar_t *base;          /* g */
  83         uint32_t value_bits;    /* for both x and y */
  84         uchar_t *private_x;     /* x */
  85         uchar_t *public_y;      /* y */
  86         int     (*rfunc)(void *, size_t);       /* random function */
  87 } DHbytekey;
  88 
  89 
  90 CK_RV dh_genkey_pair(DHbytekey *bkey);
  91 
  92 CK_RV dh_key_derive(DHbytekey *bkey, uint32_t key_type,
  93     uchar_t *secretkey, uint32_t *secretkey_len, int flag);
  94 
  95 #ifdef  __cplusplus
  96 }
  97 #endif
  98 
  99 #endif /* _DH_IMPL_H */