#ifndef HEADER_DH_H
#define HEADER_DH_H
-#ifdef __cplusplus
-extern "C" {
-#endif
-
#ifdef NO_DH
#error DH is disabled.
#endif
+#ifndef NO_BIO
+#include <openssl/bio.h>
+#endif
#include <openssl/bn.h>
+#include <openssl/crypto.h>
#define DH_FLAG_CACHE_MONT_P 0x01
-typedef struct dh_st
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct dh_st DH;
+
+typedef struct dh_method {
+ const char *name;
+ /* Methods here */
+ int (*generate_key)(DH *dh);
+ int (*compute_key)(unsigned char *key,BIGNUM *pub_key,DH *dh);
+ int (*bn_mod_exp)(DH *dh, BIGNUM *r, BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx,
+ BN_MONT_CTX *m_ctx); /* Can be null */
+
+ int (*init)(DH *dh);
+ int (*finish)(DH *dh);
+ int flags;
+ char *app_data;
+} DH_METHOD;
+
+struct dh_st
{
/* This first argument is used to pick up errors when
* a DH is passed instead of a EVP_PKEY */
BIGNUM *p;
BIGNUM *g;
int length; /* optional */
- BIGNUM *pub_key; /* y */
+ BIGNUM *pub_key; /* g^x */
BIGNUM *priv_key; /* x */
int flags;
char *method_mont_p;
- } DH;
+ /* Place holders if we want to do X9.42 DH */
+ BIGNUM *q;
+ BIGNUM *j;
+ unsigned char *seed;
+ int seedlen;
+ BIGNUM *counter;
+
+ int references;
+ CRYPTO_EX_DATA ex_data;
+ DH_METHOD *meth;
+ };
#define DH_GENERATOR_2 2
/* #define DH_GENERATOR_3 3 */
/* DH_check error codes */
#define DH_CHECK_P_NOT_PRIME 0x01
-#define DH_CHECK_P_NOT_STRONG_PRIME 0x02
+#define DH_CHECK_P_NOT_SAFE_PRIME 0x02
#define DH_UNABLE_TO_CHECK_GENERATOR 0x04
#define DH_NOT_SUITABLE_GENERATOR 0x08
+/* primes p where (p-1)/2 is prime too are called "safe"; we define
+ this for backward compatibility: */
+#define DH_CHECK_P_NOT_STRONG_PRIME DH_CHECK_P_NOT_SAFE_PRIME
+
#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, \
(unsigned char *)(x))
#define d2i_DHparams_bio(bp,x) (DH *)ASN1_d2i_bio((char *(*)())DH_new, \
(char *(*)())d2i_DHparams,(bp),(unsigned char **)(x))
+#ifdef __cplusplus
+#define i2d_DHparams_bio(bp,x) ASN1_i2d_bio((int (*)())i2d_DHparams,(bp), \
+ (unsigned char *)(x))
+#else
#define i2d_DHparams_bio(bp,x) ASN1_i2d_bio(i2d_DHparams,(bp), \
(unsigned char *)(x))
+#endif
+
+DH_METHOD *DH_OpenSSL(void);
+
+void DH_set_default_method(DH_METHOD *meth);
+DH_METHOD *DH_get_default_method(void);
+DH_METHOD *DH_set_method(DH *dh, DH_METHOD *meth);
+DH *DH_new_method(DH_METHOD *meth);
DH * DH_new(void);
void DH_free(DH *dh);
int DH_size(DH *dh);
+int DH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+ CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
+int DH_set_ex_data(DH *d, int idx, void *arg);
+void *DH_get_ex_data(DH *d, int idx);
DH * DH_generate_parameters(int prime_len,int generator,
void (*callback)(int,int,void *),void *cb_arg);
int DH_check(DH *dh,int *codes);
#ifndef NO_FP_API
int DHparams_print_fp(FILE *fp, DH *x);
#endif
-#ifdef HEADER_BIO_H
+#ifndef NO_BIO
int DHparams_print(BIO *bp, DH *x);
#else
int DHparams_print(char *bp, DH *x);
#endif
-void ERR_load_DH_strings(void );
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
* made after this point may be overwritten when the script is next run.
*/
+void ERR_load_DH_strings(void);
/* Error codes for the DH functions. */
#define DH_F_DH_NEW 105
/* Reason codes. */
+#define DH_R_BAD_GENERATOR 101
#define DH_R_NO_PRIVATE_VALUE 100
#ifdef __cplusplus
}
#endif
#endif
-