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Diffstat (limited to 'crypto/dh/dh.h')
| -rw-r--r-- | crypto/dh/dh.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/crypto/dh/dh.h b/crypto/dh/dh.h new file mode 100644 index 0000000000..44978028b7 --- /dev/null +++ b/crypto/dh/dh.h @@ -0,0 +1,162 @@ +/* crypto/dh/dh.h */ +/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ + +#ifndef HEADER_DH_H +#define HEADER_DH_H + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef HEADER_BN_H +#define BIGNUM char +#endif + +typedef struct dh_st + { + /* This first argument is used to pick up errors when + * a DH is passed instead of a EVP_PKEY */ + int pad; + int version; + BIGNUM *p; + BIGNUM *g; + int length; /* optional */ + BIGNUM *pub_key; /* y */ + BIGNUM *priv_key; /* x */ + } DH; + +#define DH_GENERATOR_2 2 +/* #define DH_GENERATOR_3 3 */ +#define DH_GENERATOR_5 5 + +/* DH_check error codes */ +#define DH_CHECK_P_NOT_PRIME 0x01 +#define DH_CHECK_P_NOT_STRONG_PRIME 0x02 +#define DH_UNABLE_TO_CHECK_GENERATOR 0x04 +#define DH_NOT_SUITABLE_GENERATOR 0x08 + +#define DHparams_dup(x) (DH *)ASN1_dup((int (*)())i2d_DHparams, \ + (char *(*)())d2i_DHparams,(char *)(x)) +#define d2i_DHparams_fp(fp,x) (DH *)ASN1_d2i_fp((char *(*)())DH_new, \ + (char *(*)())d2i_DHparams,(fp),(unsigned char **)(x)) +#define i2d_DHparams_fp(fp,x) ASN1_i2d_fp(i2d_DHparams,(fp), \ + (unsigned char *)(x)) +#define d2i_DHparams_bio(bp,x) (DH *)ASN1_d2i_bio((char *(*)())DH_new, \ + (char *(*)())d2i_DHparams,(bp),(unsigned char **)(x)) +#define i2d_DHparams_bio(bp,x) ASN1_i2d_bio(i2d_DHparams,(bp), \ + (unsigned char *)(x)) + +#ifndef NOPROTO +DH * DH_new(void); +void DH_free(DH *dh); +int DH_size(DH *dh); +DH * DH_generate_parameters(int prime_len,int generator, + void (*callback)(int,int)); +int DH_check(DH *dh,int *codes); +int DH_generate_key(DH *dh); +int DH_compute_key(unsigned char *key,BIGNUM *pub_key,DH *dh); +DH * d2i_DHparams(DH **a,unsigned char **pp, long length); +int i2d_DHparams(DH *a,unsigned char **pp); +#ifndef WIN16 +int DHparams_print_fp(FILE *fp, DH *x); +#endif +#ifdef HEADER_BIO_H +int DHparams_print(BIO *bp, DH *x); +#else +int DHparams_print(char *bp, DH *x); +#endif +void ERR_load_DH_strings(void ); + +#else + +DH * DH_new(); +void DH_free(); +int DH_size(); +DH * DH_generate_parameters(); +int DH_check(); +int DH_generate_key(); +int DH_compute_key(); +DH * d2i_DHparams(); +int i2d_DHparams(); +#ifndef WIN16 +int DHparams_print_fp(); +#endif +int DHparams_print(); +void ERR_load_DH_strings(); + +#endif + +/* BEGIN ERROR CODES */ +/* Error codes for the DH functions. */ + +/* Function codes. */ +#define DH_F_DHPARAMS_PRINT 100 +#define DH_F_DHPARAMS_PRINT_FP 101 +#define DH_F_DH_COMPUTE_KEY 102 +#define DH_F_DH_GENERATE_KEY 103 +#define DH_F_DH_GENERATE_PARAMETERS 104 +#define DH_F_DH_NEW 105 + +/* Reason codes. */ +#define DH_R_NO_PRIVATE_VALUE 100 + +#ifdef __cplusplus +} +#endif +#endif + |