1/*
2 * Copyright (c) 2005-2007,2011,2014 Apple Inc. All Rights Reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. Please obtain a copy of the License at
10 * http://www.opensource.apple.com/apsl/ and read it before using this
11 * file.
12 *
13 * The Original Code and all software distributed under the License are
14 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
15 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
16 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
18 * Please see the License for the specific language governing rights and
19 * limitations under the License.
20 *
21 * @APPLE_LICENSE_HEADER_END@
22 */
23
24
25/*
26 * DER_Keys.h - support for decoding RSA keys
27 *
28 */
29
30#ifndef	_DER_KEYS_H_
31#define _DER_KEYS_H_
32
33#ifdef __cplusplus
34extern "C" {
35#endif
36
37#include <libDER/libDER.h>
38#include <libDER/DER_Decode.h>
39
40/* Algorithm Identifier components */
41typedef struct {
42	DERItem		oid;			/* OID */
43	DERItem		params;			/* ASN_ANY, optional, DER_DEC_SAVE_DER */
44} DERAlgorithmId;
45
46/* DERItemSpecs to decode into a DERAlgorithmId */
47extern const DERItemSpec DERAlgorithmIdItemSpecs[];
48extern const DERSize DERNumAlgorithmIdItemSpecs;
49
50/* X509 SubjectPublicKeyInfo */
51typedef struct {
52	DERItem		algId;			/* sequence, DERAlgorithmId */
53	DERItem		pubKey;			/* BIT STRING */
54} DERSubjPubKeyInfo;
55
56/* DERItemSpecs to decode into a DERSubjPubKeyInfo */
57extern const DERItemSpec DERSubjPubKeyInfoItemSpecs[];
58extern const DERSize DERNumSubjPubKeyInfoItemSpecs;
59
60/*
61 * RSA public key in PKCS1 format; this is inside the BIT_STRING in
62 * DERSubjPubKeyInfo.pubKey.
63 */
64typedef struct {
65	DERItem		modulus;		/* n - INTEGER */
66	DERItem		pubExponent;	/* e - INTEGER */
67} DERRSAPubKeyPKCS1;
68
69/* DERItemSpecs to decode/encode into/from a DERRSAPubKeyPKCS1 */
70extern const DERItemSpec DERRSAPubKeyPKCS1ItemSpecs[];
71extern const DERSize DERNumRSAPubKeyPKCS1ItemSpecs;
72
73/*
74 * RSA public key in custom (to this library) format, including
75 * the reciprocal. All fields are integers.
76 */
77typedef struct {
78	DERItem		modulus;		/* n */
79	DERItem		reciprocal;		/* reciprocal of modulus */
80	DERItem		pubExponent;	/* e */
81} DERRSAPubKeyApple;
82
83/* DERItemSpecs to decode/encode into/from a DERRSAPubKeyApple */
84extern const DERItemSpec DERRSAPubKeyAppleItemSpecs[];
85extern const DERSize DERNumRSAPubKeyAppleItemSpecs;
86
87/*
88 * RSA Private key, PKCS1 format, CRT option.
89 * All fields are integers.
90 */
91typedef struct {
92	DERItem		p;				/* p * q = n */
93	DERItem		q;
94	DERItem		dp;				/* d mod (p-1) */
95	DERItem		dq;				/* d mod (q-1) */
96	DERItem		qInv;
97} DERRSAPrivKeyCRT;
98
99/* DERItemSpecs to decode into a DERRSAPrivKeyCRT */
100extern const DERItemSpec DERRSAPrivKeyCRTItemSpecs[];
101extern const DERSize DERNumRSAPrivKeyCRTItemSpecs;
102
103/* Fully formed RSA key pair, for generating a PKCS1 private key */
104typedef struct {
105	DERItem		version;
106	DERItem		n;		/* modulus */
107	DERItem		e;		/* public exponent */
108	DERItem		d;		/* private exponent */
109	DERItem		p;		/* n = p*q */
110	DERItem		q;
111	DERItem		dp;		/* d mod (p-1) */
112	DERItem		dq;		/* d mod (q-1) */
113	DERItem		qInv;	/* q^(-1) mod p */
114} DERRSAKeyPair;
115
116/* DERItemSpecs to encode a DERRSAKeyPair */
117extern const DERItemSpec DERRSAKeyPairItemSpecs[];
118extern const DERSize DERNumRSAKeyPairItemSpecs;
119
120#ifdef __cplusplus
121}
122#endif
123
124#endif	/* _DER_KEYS_H_ */
125
126