1 /* RSAREF.H - header file for RSAREF cryptographic toolkit
4 /* Copyright (C) RSA Laboratories, a division of RSA Data Security,
5 Inc., created 1991. All rights reserved.
19 /* Message-digest algorithms.
24 /* Encryption algorithms to be ored with digest algorithm in Seal and Open.
27 #define EA_DES_EDE2_CBC 2
28 #define EA_DES_EDE3_CBC 3
33 #define MIN_RSA_MODULUS_BITS 508
34 #define MAX_RSA_MODULUS_BITS 1024
35 #define MAX_RSA_MODULUS_LEN ((MAX_RSA_MODULUS_BITS + 7) / 8)
36 #define MAX_RSA_PRIME_BITS ((MAX_RSA_MODULUS_BITS + 1) / 2)
37 #define MAX_RSA_PRIME_LEN ((MAX_RSA_PRIME_BITS + 7) / 8)
39 /* Maximum lengths of encoded and encrypted content, as a function of
40 content length len. Also, inverse functions.
42 #define ENCODED_CONTENT_LEN(len) (4*(len)/3 + 3)
43 #define ENCRYPTED_CONTENT_LEN(len) ENCODED_CONTENT_LEN ((len)+8)
44 #define DECODED_CONTENT_LEN(len) (3*(len)/4 + 1)
45 #define DECRYPTED_CONTENT_LEN(len) (DECODED_CONTENT_LEN (len) - 1)
47 /* Maximum lengths of signatures, encrypted keys, encrypted
48 signatures, and message digests.
50 #define MAX_SIGNATURE_LEN MAX_RSA_MODULUS_LEN
51 #define MAX_PEM_SIGNATURE_LEN ENCODED_CONTENT_LEN (MAX_SIGNATURE_LEN)
52 #define MAX_ENCRYPTED_KEY_LEN MAX_RSA_MODULUS_LEN
53 #define MAX_PEM_ENCRYPTED_KEY_LEN ENCODED_CONTENT_LEN (MAX_ENCRYPTED_KEY_LEN)
54 #define MAX_PEM_ENCRYPTED_SIGNATURE_LEN \
55 ENCRYPTED_CONTENT_LEN (MAX_SIGNATURE_LEN)
56 #define MAX_DIGEST_LEN 16
58 /* Maximum length of Diffie-Hellman parameters.
60 #define DH_PRIME_LEN(bits) (((bits) + 7) / 8)
64 #define RE_CONTENT_ENCODING 0x0400
65 #define RE_DATA 0x0401
66 #define RE_DIGEST_ALGORITHM 0x0402
67 #define RE_ENCODING 0x0403
69 #define RE_KEY_ENCODING 0x0405
71 #define RE_MODULUS_LEN 0x0407
72 #define RE_NEED_RANDOM 0x0408
73 #define RE_PRIVATE_KEY 0x0409
74 #define RE_PUBLIC_KEY 0x040a
75 #define RE_SIGNATURE 0x040b
76 #define RE_SIGNATURE_ENCODING 0x040c
77 #define RE_ENCRYPTION_ALGORITHM 0x040d
82 unsigned int bytesNeeded;
83 unsigned char state[16];
84 unsigned int outputAvailable;
85 unsigned char output[16];
88 /* RSA public and private key.
91 unsigned int bits; /* length in bits of modulus */
92 unsigned char modulus[MAX_RSA_MODULUS_LEN]; /* modulus */
93 unsigned char exponent[MAX_RSA_MODULUS_LEN]; /* public exponent */
97 unsigned int bits; /* length in bits of modulus */
98 unsigned char modulus[MAX_RSA_MODULUS_LEN]; /* modulus */
99 unsigned char publicExponent[MAX_RSA_MODULUS_LEN]; /* public exponent */
100 unsigned char exponent[MAX_RSA_MODULUS_LEN]; /* private exponent */
101 unsigned char prime[2][MAX_RSA_PRIME_LEN]; /* prime factors */
102 unsigned char primeExponent[2][MAX_RSA_PRIME_LEN]; /* exponents for CRT */
103 unsigned char coefficient[MAX_RSA_PRIME_LEN]; /* CRT coefficient */
106 /* RSA prototype key.
109 unsigned int bits; /* length in bits of modulus */
110 int useFermat4; /* public exponent (1 = F4, 0 = 3) */
113 /* Diffie-Hellman parameters.
116 unsigned char *prime; /* prime */
117 unsigned int primeLen; /* length of prime */
118 unsigned char *generator; /* generator */
119 unsigned int generatorLen; /* length of generator */
131 R_DIGEST_CTX digestContext;
135 int encryptionAlgorithm;
142 unsigned char buffer[8];
143 unsigned int bufferLen;
146 /* Random structures.
148 int R_RandomInit PROTO_LIST ((R_RANDOM_STRUCT *));
149 int R_RandomUpdate PROTO_LIST
150 ((R_RANDOM_STRUCT *, unsigned char *, unsigned int));
151 int R_GetRandomBytesNeeded PROTO_LIST ((unsigned int *, R_RANDOM_STRUCT *));
152 void R_RandomFinal PROTO_LIST ((R_RANDOM_STRUCT *));
154 /* Cryptographic procedures "by parts"
156 int R_DigestInit PROTO_LIST ((R_DIGEST_CTX *, int));
157 int R_DigestUpdate PROTO_LIST
158 ((R_DIGEST_CTX *, unsigned char *, unsigned int));
159 int R_DigestFinal PROTO_LIST
160 ((R_DIGEST_CTX *, unsigned char *, unsigned int *));
162 int R_SignInit PROTO_LIST ((R_SIGNATURE_CTX *, int));
163 int R_SignUpdate PROTO_LIST
164 ((R_SIGNATURE_CTX *, unsigned char *, unsigned int));
165 int R_SignFinal PROTO_LIST
166 ((R_SIGNATURE_CTX *, unsigned char *, unsigned int *, R_RSA_PRIVATE_KEY *));
168 int R_VerifyInit PROTO_LIST ((R_SIGNATURE_CTX *, int));
169 int R_VerifyUpdate PROTO_LIST
170 ((R_SIGNATURE_CTX *, unsigned char *, unsigned int));
171 int R_VerifyFinal PROTO_LIST
172 ((R_SIGNATURE_CTX *, unsigned char *, unsigned int, R_RSA_PUBLIC_KEY *));
174 int R_SealInit PROTO_LIST
175 ((R_ENVELOPE_CTX *, unsigned char **, unsigned int *, unsigned char [8],
176 unsigned int, R_RSA_PUBLIC_KEY **, int, R_RANDOM_STRUCT *));
177 int R_SealUpdate PROTO_LIST
178 ((R_ENVELOPE_CTX *, unsigned char *, unsigned int *, unsigned char *,
180 int R_SealFinal PROTO_LIST
181 ((R_ENVELOPE_CTX *, unsigned char *, unsigned int *));
183 int R_OpenInit PROTO_LIST
184 ((R_ENVELOPE_CTX *, int, unsigned char *, unsigned int, unsigned char [8],
185 R_RSA_PRIVATE_KEY *));
186 int R_OpenUpdate PROTO_LIST
187 ((R_ENVELOPE_CTX *, unsigned char *, unsigned int *, unsigned char *,
189 int R_OpenFinal PROTO_LIST
190 ((R_ENVELOPE_CTX *, unsigned char *, unsigned int *));
192 /* Cryptographic enhancements by block.
194 int R_SignPEMBlock PROTO_LIST
195 ((unsigned char *, unsigned int *, unsigned char *, unsigned int *,
196 unsigned char *, unsigned int, int, int, R_RSA_PRIVATE_KEY *));
197 int R_SignBlock PROTO_LIST
198 ((unsigned char *, unsigned int *, unsigned char *, unsigned int, int,
199 R_RSA_PRIVATE_KEY *));
200 int R_VerifyPEMSignature PROTO_LIST
201 ((unsigned char *, unsigned int *, unsigned char *, unsigned int,
202 unsigned char *, unsigned int, int, int, R_RSA_PUBLIC_KEY *));
203 int R_VerifyBlockSignature PROTO_LIST
204 ((unsigned char *, unsigned int, unsigned char *, unsigned int, int,
205 R_RSA_PUBLIC_KEY *));
206 int R_SealPEMBlock PROTO_LIST
207 ((unsigned char *, unsigned int *, unsigned char *, unsigned int *,
208 unsigned char *, unsigned int *, unsigned char [8], unsigned char *,
209 unsigned int, int, R_RSA_PUBLIC_KEY *, R_RSA_PRIVATE_KEY *,
211 int R_OpenPEMBlock PROTO_LIST
212 ((unsigned char *, unsigned int *, unsigned char *, unsigned int,
213 unsigned char *, unsigned int, unsigned char *, unsigned int,
214 unsigned char [8], int, R_RSA_PRIVATE_KEY *, R_RSA_PUBLIC_KEY *));
215 int R_DigestBlock PROTO_LIST
216 ((unsigned char *, unsigned int *, unsigned char *, unsigned int, int));
218 /* Printable ASCII encoding and decoding.
220 int R_EncodePEMBlock PROTO_LIST
221 ((unsigned char *, unsigned int *, unsigned char *, unsigned int));
222 int R_DecodePEMBlock PROTO_LIST
223 ((unsigned char *, unsigned int *, unsigned char *, unsigned int));
225 /* Key-pair generation.
227 int R_GeneratePEMKeys PROTO_LIST
228 ((R_RSA_PUBLIC_KEY *, R_RSA_PRIVATE_KEY *, R_RSA_PROTO_KEY *,
231 /* Diffie-Hellman key agreement.
233 int R_GenerateDHParams PROTO_LIST
234 ((R_DH_PARAMS *, unsigned int, unsigned int, R_RANDOM_STRUCT *));
235 int R_SetupDHAgreement PROTO_LIST
236 ((unsigned char *, unsigned char *, unsigned int, R_DH_PARAMS *,
238 int R_ComputeDHAgreedKey PROTO_LIST
239 ((unsigned char *, unsigned char *, unsigned char *, unsigned int,
242 /* Routines supplied by the implementor.
244 void R_memset PROTO_LIST ((POINTER, int, unsigned int));
245 void R_memcpy PROTO_LIST ((POINTER, POINTER, unsigned int));
246 int R_memcmp PROTO_LIST ((POINTER, POINTER, unsigned int));