#ifndef HEADER_DH_H
#define HEADER_DH_H
+#include <openssl/e_os2.h>
+
+#ifdef OPENSSL_NO_DH
+#error DH is disabled.
+#endif
+
+#ifndef OPENSSL_NO_BIO
+#include <openssl/bio.h>
+#endif
+#include <openssl/ossl_typ.h>
+#ifndef OPENSSL_NO_DEPRECATED
+#include <openssl/bn.h>
+#endif
+
+#define DH_FLAG_CACHE_MONT_P 0x01
+
#ifdef __cplusplus
extern "C" {
#endif
-#ifndef HEADER_BN_H
-#define BIGNUM char
-#endif
+/* Already defined in ossl_typ.h */
+/* typedef struct dh_st DH; */
+/* typedef struct dh_method DH_METHOD; */
-#define DH_FLAG_CACHE_MONT_P 0x01
+struct dh_method
+ {
+ const char *name;
+ /* Methods here */
+ int (*generate_key)(DH *dh);
+ int (*compute_key)(unsigned char *key,const BIGNUM *pub_key,DH *dh);
+ int (*bn_mod_exp)(const DH *dh, BIGNUM *r, const 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;
+ /* If this is non-NULL, it will be used to generate parameters */
+ int (*generate_params)(DH *dh, int prime_len, int generator, BN_GENCB *cb);
+ };
-typedef struct dh_st
+struct dh_st
{
/* This first argument is used to pick up errors when
* a DH is passed instead of a EVP_PKEY */
int version;
BIGNUM *p;
BIGNUM *g;
- int length; /* optional */
- BIGNUM *pub_key; /* y */
+ long length; /* optional */
+ 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;
+ const DH_METHOD *meth;
+ ENGINE *engine;
+ };
#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
-#define DHparams_dup(x) (DH *)ASN1_dup((int (*)())i2d_DHparams, \
- (char *(*)())d2i_DHparams,(char *)(x))
+/* 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) ASN1_dup_of_const(DH,i2d_DHparams,d2i_DHparams,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))
+#define d2i_DHparams_bio(bp,x) ASN1_d2i_bio_of(DH,DH_new,d2i_DHparams,bp,x)
+#define i2d_DHparams_bio(bp,x) ASN1_i2d_bio_of_const(DH,i2d_DHparams,bp,x)
+
+const DH_METHOD *DH_OpenSSL(void);
+
+void DH_set_default_method(const DH_METHOD *meth);
+const DH_METHOD *DH_get_default_method(void);
+int DH_set_method(DH *dh, const DH_METHOD *meth);
+DH *DH_new_method(ENGINE *engine);
-#ifndef NOPROTO
DH * DH_new(void);
void DH_free(DH *dh);
-int DH_size(DH *dh);
+int DH_up_ref(DH *dh);
+int DH_size(const 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);
+
+/* Deprecated version */
+#ifndef OPENSSL_NO_DEPRECATED
DH * DH_generate_parameters(int prime_len,int generator,
- void (*callback)(int,int,char *),char *cb_arg);
-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 NO_FP_API
-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 );
+ void (*callback)(int,int,void *),void *cb_arg);
+#endif /* !defined(OPENSSL_NO_DEPRECATED) */
-#else
+/* New version */
+int DH_generate_parameters_ex(DH *dh, int prime_len,int generator, BN_GENCB *cb);
-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 NO_FP_API
-int DHparams_print_fp();
+int DH_check(const DH *dh,int *codes);
+int DH_generate_key(DH *dh);
+int DH_compute_key(unsigned char *key,const BIGNUM *pub_key,DH *dh);
+DH * d2i_DHparams(DH **a,const unsigned char **pp, long length);
+int i2d_DHparams(const DH *a,unsigned char **pp);
+#ifndef OPENSSL_NO_FP_API
+int DHparams_print_fp(FILE *fp, const DH *x);
#endif
-int DHparams_print();
-void ERR_load_DH_strings();
-
+#ifndef OPENSSL_NO_BIO
+int DHparams_print(BIO *bp, const DH *x);
+#else
+int DHparams_print(char *bp, const DH *x);
#endif
/* 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. */
/* Function codes. */
+#define DH_F_COMPUTE_KEY 102
#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
+#define DH_F_DH_BUILTIN_GENPARAMS 106
+#define DH_F_DH_NEW_METHOD 105
+#define DH_F_GENERATE_KEY 103
+#define DH_F_GENERATE_PARAMETERS 104
/* Reason codes. */
+#define DH_R_BAD_GENERATOR 101
#define DH_R_NO_PRIVATE_VALUE 100
-
+
#ifdef __cplusplus
}
#endif
#endif
-
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