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1/* Copyright (c) 1998 Apple Computer, Inc. All rights reserved.
2 *
3 * NOTICE: USE OF THE MATERIALS ACCOMPANYING THIS NOTICE IS SUBJECT
4 * TO THE TERMS OF THE SIGNED "FAST ELLIPTIC ENCRYPTION (FEE) REFERENCE
5 * SOURCE CODE EVALUATION AGREEMENT" BETWEEN APPLE COMPUTER, INC. AND THE
6 * ORIGINAL LICENSEE THAT OBTAINED THESE MATERIALS FROM APPLE COMPUTER,
7 * INC. ANY USE OF THESE MATERIALS NOT PERMITTED BY SUCH AGREEMENT WILL
8 * EXPOSE YOU TO LIABILITY.
9 ***************************************************************************
10 *
11 * feeTypes.h - general purpose FEE typedefs and constants
12 *
13 * Revision History
14 * ----------------
15 * 23 Mar 98 Doug Mitchell at Apple
16 * Added FR_BadKeyBlob.
17 * 20 Jan 98 Doug Mitchell at Apple
18 * New PT_GENERAL depth values.
19 * 09 Jan 98 Doug Mitchell at Apple
20 * Removed obsolete FEE_DEPTH_* values.
21 * 20 Aug 96 Doug Mitchell at NeXT
22 * Created.
23 */
24
25#ifndef _CK_FEETYPES_H_
26#define _CK_FEETYPES_H_
27
28/*
29 * Opaque public key object.
30 */
31typedef void *feePubKey;
32
33/*
34 * Standard return codes.
35 * Remember to update frtnStrings[] in utilities.c when adding new items.
36 */
37typedef enum {
38 FR_Success = 0,
39 FR_BadPubKey,
40 FR_BadPubKeyString,
41 FR_IncompatibleKey, /* incompatible key */
42 FR_IllegalDepth,
43 FR_BadUsageName, /* bad usageName */
44 FR_BadSignatureFormat, /* signature corrupted */
45 FR_InvalidSignature, /* signature intact, but not valid */
46 FR_IllegalArg, /* illegal argument */
47 FR_BadCipherText, /* malformed ciphertext */
48 FR_Unimplemented, /* unimplemented function */
49 FR_BadCipherFile,
50 FR_BadEnc64, /* bad enc64() format */
51 FR_WrongSignatureType, /* ElGamal vs. ECDSA */
52 FR_BadKeyBlob,
53 FR_IllegalCurve, /* e.g., ECDSA with Montgomery curve */
54 FR_Internal, /* internal library error */
55 FR_Memory, /* out of memory */
56 FR_ShortPrivData /* insufficient privData for creating
57 * private key */
58 /* etc. */
59} feeReturn;
60
61/*
62 * The feeDepth parameter defines one of 'n' known curves. From a user's
63 * perspective, the most interesting parameter indicated by feeDepth is
64 * the size (in bits) of the key.
65 */
66typedef unsigned feeDepth;
67
68/*
69 * Prime and curve description parameters.
70 */
71typedef enum {
72 FPT_Default, /* default per key size */
73 FPT_Mersenne, /* (2 ** q) - 1 */
74 FPT_FEE, /* (2 ** q) - k */
75 FPT_General /* random prime */
76} feePrimeType;
77
78typedef enum {
79 FCT_Default, /* default per key size */
80 FCT_Montgomery, /* a==1, b==0 */
81 FCT_Weierstrass, /* c==0. IEEE P1363 compliant. */
82 FCT_ANSI, /* ANSI X9.62/Certicom, also FCT_Weierstrass */
83 FCT_General /* Other */
84} feeCurveType;
85
86/*
87 * Some commonly used feeDepth values. In these definitions, q and k are
88 * from the expression (2^q - k), the base modulus of the curve. The case
89 * k=1 implies a Mersenne prime as the modulus.
90 */
91#define FEE_PROTOTYPE_CURVES 0
92
93#if FEE_PROTOTYPE_CURVES
94
95 /* q k a b c */
96 /* ---- ---- ---- ---- ---- */
97#define FEE_DEPTH_31_1_W 0 /* 31 1 7 1 0 */
98#define FEE_DEPTH_31_1_M 1 /* 31 1 1 0 666 */
99#define FEE_DEPTH_31_1_P 2 /* 31 1 5824692 2067311435 0 */
100#define FEE_DEPTH_40_213 3 /* 40 213 1627500953 523907505 0 */
101#define FEE_DEPTH_127_1 4 /* 127 1 1 0 666 */
102#define FEE_DEPTH_127_1W 5 /* 127 1 666 1 0 */
103#define FEE_DEPTH_160_57 6 /* 160 57 0 3 0 */
104#define FEE_DEPTH_192_1425 7 /* 192 1425 0 -11 0 */
105#define FEE_DEPTH_192_M529891 8 /* 192 -529891 -152 722 0 */
106
107/*
108 * The remaining curves are implemented as PT_GENERAL curves; modulo
109 * arithmetic does not utilize any FEE or Mersenne optimizations. These
110 * are here for performance measurements and DVT.
111 */
112#define FEE_DEPTH_127_GEN 9 /* 127 1 1 0 666 */
113#define FEE_DEPTH_160_GEN 10 /* 160 57 0 3 0 */
114#define FEE_DEPTH_161_GEN 11 /* 161 .. -152 722 0 */
115
116/*
117 * The default depth.
118 */
119#define FEE_DEPTH_DEFAULT FEE_DEPTH_160_57
120
121/*
122 * Last enumerated depth.
123 */
124#define FEE_DEPTH_MAX FEE_DEPTH_161_GEN
125
126#else /* FEE_PROTOTYPE_CURVES */
127
128/*
129 * The real curves as of 4/9/2001.
130 * Note that ECDSA signatures can only be performed with curve of
131 * curveType FCT_Weierstrass.
132 *
133 * Default curveType for curves with same prime size is FCT_Weierstrass.
134 */
135#define FEE_DEPTH_31M 0 /* size=31 FPT_Mersenne FCT_Montgomery */
136#define FEE_DEPTH_31W 1 /* size=31 FPT_Mersenne FCT_Weierstrass */
137#define FEE_DEPTH_127M 2 /* size=127 FPT_Mersenne FCT_Montgomery */
138#define FEE_DEPTH_128W 3 /* size=128 FPT_FEE FCT_Weierstrass */
139#define FEE_DEPTH_161W 4 /* size=161 FPT_FEE FCT_Weierstrass */
140#define FEE_DEPTH_161G 5 /* size=161 FPT_General FCT_Weierstrass */
141#define FEE_DEPTH_192G 6 /* size=192 FPT_General FCT_Weierstrass */
142
143/* ANSI X9.62/Certicom curves */
144#define FEE_DEPTH_secp192r1 7 /* size=192 FPT_General FCT_ANSI */
145#define FEE_DEPTH_secp256r1 8 /* size=256 FPT_General FCT_ANSI */
146#define FEE_DEPTH_secp384r1 9 /* size=384 FPT_General FCT_ANSI */
147#define FEE_DEPTH_secp521r1 10 /* size=521 FPT_General FCT_ANSI */
148/*
149 * The default depth.
150 */
151#define FEE_DEPTH_DEFAULT FEE_DEPTH_161W
152
153/*
154 * Last enumerated depth.
155 */
156#define FEE_DEPTH_MAX FEE_DEPTH_secp521r1
157
158#endif /* FEE_PROTOTYPE_CURVES */
159
160/*
161 * Random number generator callback function.
162 */
163typedef feeReturn (*feeRandFcn)(
164 void *ref,
165 unsigned char *bytes, /* must be alloc'd by caller */
166 unsigned numBytes);
167
168#endif /* _CK_FEETYPES_H_ */