LTKCPP-- LLRP Toolkit C Plus Plus Library
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00001 /* crypto/dh/dh.h */ 00002 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 00003 * All rights reserved. 00004 * 00005 * This package is an SSL implementation written 00006 * by Eric Young (eay@cryptsoft.com). 00007 * The implementation was written so as to conform with Netscapes SSL. 00008 * 00009 * This library is free for commercial and non-commercial use as long as 00010 * the following conditions are aheared to. The following conditions 00011 * apply to all code found in this distribution, be it the RC4, RSA, 00012 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 00013 * included with this distribution is covered by the same copyright terms 00014 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 00015 * 00016 * Copyright remains Eric Young's, and as such any Copyright notices in 00017 * the code are not to be removed. 00018 * If this package is used in a product, Eric Young should be given attribution 00019 * as the author of the parts of the library used. 00020 * This can be in the form of a textual message at program startup or 00021 * in documentation (online or textual) provided with the package. 00022 * 00023 * Redistribution and use in source and binary forms, with or without 00024 * modification, are permitted provided that the following conditions 00025 * are met: 00026 * 1. Redistributions of source code must retain the copyright 00027 * notice, this list of conditions and the following disclaimer. 00028 * 2. Redistributions in binary form must reproduce the above copyright 00029 * notice, this list of conditions and the following disclaimer in the 00030 * documentation and/or other materials provided with the distribution. 00031 * 3. All advertising materials mentioning features or use of this software 00032 * must display the following acknowledgement: 00033 * "This product includes cryptographic software written by 00034 * Eric Young (eay@cryptsoft.com)" 00035 * The word 'cryptographic' can be left out if the rouines from the library 00036 * being used are not cryptographic related :-). 00037 * 4. If you include any Windows specific code (or a derivative thereof) from 00038 * the apps directory (application code) you must include an acknowledgement: 00039 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 00040 * 00041 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 00042 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00043 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00044 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 00045 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00046 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00047 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00048 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00049 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00050 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00051 * SUCH DAMAGE. 00052 * 00053 * The licence and distribution terms for any publically available version or 00054 * derivative of this code cannot be changed. i.e. this code cannot simply be 00055 * copied and put under another distribution licence 00056 * [including the GNU Public Licence.] 00057 */ 00058 00059 #ifndef HEADER_DH_H 00060 # define HEADER_DH_H 00061 00062 # include <openssl/e_os2.h> 00063 00064 # ifdef OPENSSL_NO_DH 00065 # error DH is disabled. 00066 # endif 00067 00068 # ifndef OPENSSL_NO_BIO 00069 # include <openssl/bio.h> 00070 # endif 00071 # include <openssl/ossl_typ.h> 00072 # ifndef OPENSSL_NO_DEPRECATED 00073 # include <openssl/bn.h> 00074 # endif 00075 00076 # ifndef OPENSSL_DH_MAX_MODULUS_BITS 00077 # define OPENSSL_DH_MAX_MODULUS_BITS 10000 00078 # endif 00079 00080 # define DH_FLAG_CACHE_MONT_P 0x01 00081 00082 /* 00083 * new with 0.9.7h; the built-in DH 00084 * implementation now uses constant time 00085 * modular exponentiation for secret exponents 00086 * by default. This flag causes the 00087 * faster variable sliding window method to 00088 * be used for all exponents. 00089 */ 00090 # define DH_FLAG_NO_EXP_CONSTTIME 0x02 00091 00092 /* 00093 * If this flag is set the DH method is FIPS compliant and can be used in 00094 * FIPS mode. This is set in the validated module method. If an application 00095 * sets this flag in its own methods it is its reposibility to ensure the 00096 * result is compliant. 00097 */ 00098 00099 # define DH_FLAG_FIPS_METHOD 0x0400 00100 00101 /* 00102 * If this flag is set the operations normally disabled in FIPS mode are 00103 * permitted it is then the applications responsibility to ensure that the 00104 * usage is compliant. 00105 */ 00106 00107 # define DH_FLAG_NON_FIPS_ALLOW 0x0400 00108 00109 #ifdef __cplusplus 00110 extern "C" { 00111 #endif 00112 00113 /* Already defined in ossl_typ.h */ 00114 /* typedef struct dh_st DH; */ 00115 /* typedef struct dh_method DH_METHOD; */ 00116 00117 struct dh_method { 00118 const char *name; 00119 /* Methods here */ 00120 int (*generate_key) (DH *dh); 00121 int (*compute_key) (unsigned char *key, const BIGNUM *pub_key, DH *dh); 00122 /* Can be null */ 00123 int (*bn_mod_exp) (const DH *dh, BIGNUM *r, const BIGNUM *a, 00124 const BIGNUM *p, const BIGNUM *m, BN_CTX *ctx, 00125 BN_MONT_CTX *m_ctx); 00126 int (*init) (DH *dh); 00127 int (*finish) (DH *dh); 00128 int flags; 00129 char *app_data; 00130 /* If this is non-NULL, it will be used to generate parameters */ 00131 int (*generate_params) (DH *dh, int prime_len, int generator, 00132 BN_GENCB *cb); 00133 }; 00134 00135 struct dh_st { 00136 /* 00137 * This first argument is used to pick up errors when a DH is passed 00138 * instead of a EVP_PKEY 00139 */ 00140 int pad; 00141 int version; 00142 BIGNUM *p; 00143 BIGNUM *g; 00144 long length; /* optional */ 00145 BIGNUM *pub_key; /* g^x */ 00146 BIGNUM *priv_key; /* x */ 00147 int flags; 00148 BN_MONT_CTX *method_mont_p; 00149 /* Place holders if we want to do X9.42 DH */ 00150 BIGNUM *q; 00151 BIGNUM *j; 00152 unsigned char *seed; 00153 int seedlen; 00154 BIGNUM *counter; 00155 int references; 00156 CRYPTO_EX_DATA ex_data; 00157 const DH_METHOD *meth; 00158 ENGINE *engine; 00159 }; 00160 00161 # define DH_GENERATOR_2 2 00162 /* #define DH_GENERATOR_3 3 */ 00163 # define DH_GENERATOR_5 5 00164 00165 /* DH_check error codes */ 00166 # define DH_CHECK_P_NOT_PRIME 0x01 00167 # define DH_CHECK_P_NOT_SAFE_PRIME 0x02 00168 # define DH_UNABLE_TO_CHECK_GENERATOR 0x04 00169 # define DH_NOT_SUITABLE_GENERATOR 0x08 00170 # define DH_CHECK_Q_NOT_PRIME 0x10 00171 # define DH_CHECK_INVALID_Q_VALUE 0x20 00172 # define DH_CHECK_INVALID_J_VALUE 0x40 00173 00174 /* DH_check_pub_key error codes */ 00175 # define DH_CHECK_PUBKEY_TOO_SMALL 0x01 00176 # define DH_CHECK_PUBKEY_TOO_LARGE 0x02 00177 00178 /* 00179 * primes p where (p-1)/2 is prime too are called "safe"; we define this for 00180 * backward compatibility: 00181 */ 00182 # define DH_CHECK_P_NOT_STRONG_PRIME DH_CHECK_P_NOT_SAFE_PRIME 00183 00184 # define d2i_DHparams_fp(fp,x) (DH *)ASN1_d2i_fp((char *(*)())DH_new, \ 00185 (char *(*)())d2i_DHparams,(fp),(unsigned char **)(x)) 00186 # define i2d_DHparams_fp(fp,x) ASN1_i2d_fp(i2d_DHparams,(fp), \ 00187 (unsigned char *)(x)) 00188 # define d2i_DHparams_bio(bp,x) ASN1_d2i_bio_of(DH,DH_new,d2i_DHparams,bp,x) 00189 # define i2d_DHparams_bio(bp,x) ASN1_i2d_bio_of_const(DH,i2d_DHparams,bp,x) 00190 00191 DH *DHparams_dup(DH *); 00192 00193 const DH_METHOD *DH_OpenSSL(void); 00194 00195 void DH_set_default_method(const DH_METHOD *meth); 00196 const DH_METHOD *DH_get_default_method(void); 00197 int DH_set_method(DH *dh, const DH_METHOD *meth); 00198 DH *DH_new_method(ENGINE *engine); 00199 00200 DH *DH_new(void); 00201 void DH_free(DH *dh); 00202 int DH_up_ref(DH *dh); 00203 int DH_size(const DH *dh); 00204 int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, 00205 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func); 00206 int DH_set_ex_data(DH *d, int idx, void *arg); 00207 void *DH_get_ex_data(DH *d, int idx); 00208 00209 /* Deprecated version */ 00210 # ifndef OPENSSL_NO_DEPRECATED 00211 DH *DH_generate_parameters(int prime_len, int generator, 00212 void (*callback) (int, int, void *), void *cb_arg); 00213 # endif /* !defined(OPENSSL_NO_DEPRECATED) */ 00214 00215 /* New version */ 00216 int DH_generate_parameters_ex(DH *dh, int prime_len, int generator, 00217 BN_GENCB *cb); 00218 00219 int DH_check(const DH *dh, int *codes); 00220 int DH_check_pub_key(const DH *dh, const BIGNUM *pub_key, int *codes); 00221 int DH_generate_key(DH *dh); 00222 int DH_compute_key(unsigned char *key, const BIGNUM *pub_key, DH *dh); 00223 int DH_compute_key_padded(unsigned char *key, const BIGNUM *pub_key, DH *dh); 00224 DH *d2i_DHparams(DH **a, const unsigned char **pp, long length); 00225 int i2d_DHparams(const DH *a, unsigned char **pp); 00226 DH *d2i_DHxparams(DH **a, const unsigned char **pp, long length); 00227 int i2d_DHxparams(const DH *a, unsigned char **pp); 00228 # ifndef OPENSSL_NO_FP_API 00229 int DHparams_print_fp(FILE *fp, const DH *x); 00230 # endif 00231 # ifndef OPENSSL_NO_BIO 00232 int DHparams_print(BIO *bp, const DH *x); 00233 # else 00234 int DHparams_print(char *bp, const DH *x); 00235 # endif 00236 00237 /* RFC 5114 parameters */ 00238 DH *DH_get_1024_160(void); 00239 DH *DH_get_2048_224(void); 00240 DH *DH_get_2048_256(void); 00241 00242 /* RFC2631 KDF */ 00243 int DH_KDF_X9_42(unsigned char *out, size_t outlen, 00244 const unsigned char *Z, size_t Zlen, 00245 ASN1_OBJECT *key_oid, 00246 const unsigned char *ukm, size_t ukmlen, const EVP_MD *md); 00247 00248 # define EVP_PKEY_CTX_set_dh_paramgen_prime_len(ctx, len) \ 00249 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \ 00250 EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN, len, NULL) 00251 00252 # define EVP_PKEY_CTX_set_dh_paramgen_subprime_len(ctx, len) \ 00253 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \ 00254 EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN, len, NULL) 00255 00256 # define EVP_PKEY_CTX_set_dh_paramgen_type(ctx, typ) \ 00257 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \ 00258 EVP_PKEY_CTRL_DH_PARAMGEN_TYPE, typ, NULL) 00259 00260 # define EVP_PKEY_CTX_set_dh_paramgen_generator(ctx, gen) \ 00261 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DH, EVP_PKEY_OP_PARAMGEN, \ 00262 EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR, gen, NULL) 00263 00264 # define EVP_PKEY_CTX_set_dh_rfc5114(ctx, gen) \ 00265 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \ 00266 EVP_PKEY_CTRL_DH_RFC5114, gen, NULL) 00267 00268 # define EVP_PKEY_CTX_set_dhx_rfc5114(ctx, gen) \ 00269 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, EVP_PKEY_OP_PARAMGEN, \ 00270 EVP_PKEY_CTRL_DH_RFC5114, gen, NULL) 00271 00272 # define EVP_PKEY_CTX_set_dh_kdf_type(ctx, kdf) \ 00273 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00274 EVP_PKEY_OP_DERIVE, \ 00275 EVP_PKEY_CTRL_DH_KDF_TYPE, kdf, NULL) 00276 00277 # define EVP_PKEY_CTX_get_dh_kdf_type(ctx) \ 00278 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00279 EVP_PKEY_OP_DERIVE, \ 00280 EVP_PKEY_CTRL_DH_KDF_TYPE, -2, NULL) 00281 00282 # define EVP_PKEY_CTX_set0_dh_kdf_oid(ctx, oid) \ 00283 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00284 EVP_PKEY_OP_DERIVE, \ 00285 EVP_PKEY_CTRL_DH_KDF_OID, 0, (void *)oid) 00286 00287 # define EVP_PKEY_CTX_get0_dh_kdf_oid(ctx, poid) \ 00288 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00289 EVP_PKEY_OP_DERIVE, \ 00290 EVP_PKEY_CTRL_GET_DH_KDF_OID, 0, (void *)poid) 00291 00292 # define EVP_PKEY_CTX_set_dh_kdf_md(ctx, md) \ 00293 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00294 EVP_PKEY_OP_DERIVE, \ 00295 EVP_PKEY_CTRL_DH_KDF_MD, 0, (void *)md) 00296 00297 # define EVP_PKEY_CTX_get_dh_kdf_md(ctx, pmd) \ 00298 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00299 EVP_PKEY_OP_DERIVE, \ 00300 EVP_PKEY_CTRL_GET_DH_KDF_MD, 0, (void *)pmd) 00301 00302 # define EVP_PKEY_CTX_set_dh_kdf_outlen(ctx, len) \ 00303 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00304 EVP_PKEY_OP_DERIVE, \ 00305 EVP_PKEY_CTRL_DH_KDF_OUTLEN, len, NULL) 00306 00307 # define EVP_PKEY_CTX_get_dh_kdf_outlen(ctx, plen) \ 00308 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00309 EVP_PKEY_OP_DERIVE, \ 00310 EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN, 0, (void *)plen) 00311 00312 # define EVP_PKEY_CTX_set0_dh_kdf_ukm(ctx, p, plen) \ 00313 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00314 EVP_PKEY_OP_DERIVE, \ 00315 EVP_PKEY_CTRL_DH_KDF_UKM, plen, (void *)p) 00316 00317 # define EVP_PKEY_CTX_get0_dh_kdf_ukm(ctx, p) \ 00318 EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_DHX, \ 00319 EVP_PKEY_OP_DERIVE, \ 00320 EVP_PKEY_CTRL_GET_DH_KDF_UKM, 0, (void *)p) 00321 00322 # define EVP_PKEY_CTRL_DH_PARAMGEN_PRIME_LEN (EVP_PKEY_ALG_CTRL + 1) 00323 # define EVP_PKEY_CTRL_DH_PARAMGEN_GENERATOR (EVP_PKEY_ALG_CTRL + 2) 00324 # define EVP_PKEY_CTRL_DH_RFC5114 (EVP_PKEY_ALG_CTRL + 3) 00325 # define EVP_PKEY_CTRL_DH_PARAMGEN_SUBPRIME_LEN (EVP_PKEY_ALG_CTRL + 4) 00326 # define EVP_PKEY_CTRL_DH_PARAMGEN_TYPE (EVP_PKEY_ALG_CTRL + 5) 00327 # define EVP_PKEY_CTRL_DH_KDF_TYPE (EVP_PKEY_ALG_CTRL + 6) 00328 # define EVP_PKEY_CTRL_DH_KDF_MD (EVP_PKEY_ALG_CTRL + 7) 00329 # define EVP_PKEY_CTRL_GET_DH_KDF_MD (EVP_PKEY_ALG_CTRL + 8) 00330 # define EVP_PKEY_CTRL_DH_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 9) 00331 # define EVP_PKEY_CTRL_GET_DH_KDF_OUTLEN (EVP_PKEY_ALG_CTRL + 10) 00332 # define EVP_PKEY_CTRL_DH_KDF_UKM (EVP_PKEY_ALG_CTRL + 11) 00333 # define EVP_PKEY_CTRL_GET_DH_KDF_UKM (EVP_PKEY_ALG_CTRL + 12) 00334 # define EVP_PKEY_CTRL_DH_KDF_OID (EVP_PKEY_ALG_CTRL + 13) 00335 # define EVP_PKEY_CTRL_GET_DH_KDF_OID (EVP_PKEY_ALG_CTRL + 14) 00336 00337 /* KDF types */ 00338 # define EVP_PKEY_DH_KDF_NONE 1 00339 # define EVP_PKEY_DH_KDF_X9_42 2 00340 00341 /* BEGIN ERROR CODES */ 00342 /* 00343 * The following lines are auto generated by the script mkerr.pl. Any changes 00344 * made after this point may be overwritten when the script is next run. 00345 */ 00346 void ERR_load_DH_strings(void); 00347 00348 /* Error codes for the DH functions. */ 00349 00350 /* Function codes. */ 00351 # define DH_F_COMPUTE_KEY 102 00352 # define DH_F_DHPARAMS_PRINT_FP 101 00353 # define DH_F_DH_BUILTIN_GENPARAMS 106 00354 # define DH_F_DH_CMS_DECRYPT 117 00355 # define DH_F_DH_CMS_SET_PEERKEY 118 00356 # define DH_F_DH_CMS_SET_SHARED_INFO 119 00357 # define DH_F_DH_COMPUTE_KEY 114 00358 # define DH_F_DH_GENERATE_KEY 115 00359 # define DH_F_DH_GENERATE_PARAMETERS_EX 116 00360 # define DH_F_DH_NEW_METHOD 105 00361 # define DH_F_DH_PARAM_DECODE 107 00362 # define DH_F_DH_PRIV_DECODE 110 00363 # define DH_F_DH_PRIV_ENCODE 111 00364 # define DH_F_DH_PUB_DECODE 108 00365 # define DH_F_DH_PUB_ENCODE 109 00366 # define DH_F_DO_DH_PRINT 100 00367 # define DH_F_GENERATE_KEY 103 00368 # define DH_F_GENERATE_PARAMETERS 104 00369 # define DH_F_PKEY_DH_DERIVE 112 00370 # define DH_F_PKEY_DH_KEYGEN 113 00371 00372 /* Reason codes. */ 00373 # define DH_R_BAD_GENERATOR 101 00374 # define DH_R_BN_DECODE_ERROR 109 00375 # define DH_R_BN_ERROR 106 00376 # define DH_R_DECODE_ERROR 104 00377 # define DH_R_INVALID_PUBKEY 102 00378 # define DH_R_KDF_PARAMETER_ERROR 112 00379 # define DH_R_KEYS_NOT_SET 108 00380 # define DH_R_KEY_SIZE_TOO_SMALL 110 00381 # define DH_R_MODULUS_TOO_LARGE 103 00382 # define DH_R_NON_FIPS_METHOD 111 00383 # define DH_R_NO_PARAMETERS_SET 107 00384 # define DH_R_NO_PRIVATE_VALUE 100 00385 # define DH_R_PARAMETER_ENCODING_ERROR 105 00386 # define DH_R_PEER_KEY_ERROR 113 00387 # define DH_R_SHARED_INFO_ERROR 114 00388 00389 #ifdef __cplusplus 00390 } 00391 #endif 00392 #endif