Make `safe' (EC)DSA nonces the default.
[openssl.git] / crypto / dsa / dsa.h
index 27bc5b91ca402d01f665d185ee7ddec758e82a5f..6010a954f0c700d051315e6ba3426fd056e28363 100644 (file)
 # define OPENSSL_DSA_MAX_MODULUS_BITS  10000
 #endif
 
+#define OPENSSL_DSA_FIPS_MIN_MODULUS_BITS 1024
+
 #define DSA_FLAG_CACHE_MONT_P  0x01
-#define DSA_FLAG_NO_EXP_CONSTTIME       0x02 /* new with 0.9.7h; the built-in DSA
-                                              * implementation now uses constant time
-                                              * modular exponentiation for secret exponents
-                                              * by default. This flag causes the
-                                              * faster variable sliding window method to
-                                              * be used for all exponents.
+#define DSA_FLAG_NO_EXP_CONSTTIME       0x02 /* new with 0.9.7h; the
+                                              * built-in DSA
+                                              * implementation now
+                                              * uses constant time
+                                              * modular exponentiation
+                                              * for secret exponents
+                                              * by default. This flag
+                                              * causes the faster
+                                              * variable sliding
+                                              * window method to be
+                                              * used for all
+                                              * exponents.
                                               */
 
+/* If this flag is set the DSA method is FIPS compliant and can be used
+ * in FIPS mode. This is set in the validated module method. If an
+ * application sets this flag in its own methods it is its reposibility
+ * to ensure the result is compliant.
+ */
+
+#define DSA_FLAG_FIPS_METHOD                   0x0400
+
+/* If this flag is set the operations normally disabled in FIPS mode are
+ * permitted it is then the applications responsibility to ensure that the
+ * usage is compliant.
+ */
+
+#define DSA_FLAG_NON_FIPS_ALLOW                        0x0400
+#define DSA_FLAG_FIPS_CHECKED                  0x0800
+
 #ifdef  __cplusplus
 extern "C" {
 #endif
@@ -131,7 +155,7 @@ struct dsa_method
        char *app_data;
        /* If this is non-NULL, it is used to generate DSA parameters */
        int (*dsa_paramgen)(DSA *dsa, int bits,
-                       unsigned char *seed, int seed_len,
+                       const unsigned char *seed, int seed_len,
                        int *counter_ret, unsigned long *h_ret,
                        BN_GENCB *cb);
        /* If this is non-NULL, it is used to generate DSA keys */
@@ -165,7 +189,6 @@ struct dsa_st
        ENGINE *engine;
        };
 
-#define DSAparams_dup(x) ASN1_dup_of_const(DSA,i2d_DSAparams,d2i_DSAparams,x)
 #define d2i_DSAparams_fp(fp,x) (DSA *)ASN1_d2i_fp((char *(*)())DSA_new, \
                (char *(*)())d2i_DSAparams,(fp),(unsigned char **)(x))
 #define i2d_DSAparams_fp(fp,x) ASN1_i2d_fp(i2d_DSAparams,(fp), \
@@ -174,6 +197,7 @@ struct dsa_st
 #define i2d_DSAparams_bio(bp,x) ASN1_i2d_bio_of_const(DSA,i2d_DSAparams,bp,x)
 
 
+DSA *DSAparams_dup(DSA *x);
 DSA_SIG * DSA_SIG_new(void);
 void   DSA_SIG_free(DSA_SIG *a);
 int    i2d_DSA_SIG(const DSA_SIG *a, unsigned char **pp);
@@ -189,6 +213,21 @@ void       DSA_set_default_method(const DSA_METHOD *);
 const DSA_METHOD *DSA_get_default_method(void);
 int    DSA_set_method(DSA *dsa, const DSA_METHOD *);
 
+#ifdef OPENSSL_FIPS
+DSA *  FIPS_dsa_new(void);
+void   FIPS_dsa_free (DSA *r);
+DSA_SIG * FIPS_dsa_sign_digest(DSA *dsa, const unsigned char *dig, int dlen);
+DSA_SIG * FIPS_dsa_sign_ctx(DSA *dsa, EVP_MD_CTX *ctx);
+int FIPS_dsa_verify_digest(DSA *dsa,
+                               const unsigned char *dig, int dlen, DSA_SIG *s);
+int FIPS_dsa_verify_ctx(DSA *dsa, EVP_MD_CTX *ctx, DSA_SIG *s);
+int FIPS_dsa_verify(DSA *dsa, const unsigned char *msg, size_t msglen,
+                       const EVP_MD *mhash, DSA_SIG *s);
+DSA_SIG * FIPS_dsa_sign(DSA *dsa, const unsigned char *msg, size_t msglen,
+                       const EVP_MD *mhash);
+
+#endif
+
 DSA *  DSA_new(void);
 DSA *  DSA_new_method(ENGINE *engine);
 void   DSA_free (DSA *r);
@@ -220,7 +259,7 @@ DSA *       DSA_generate_parameters(int bits,
 
 /* New version */
 int    DSA_generate_parameters_ex(DSA *dsa, int bits,
-               unsigned char *seed,int seed_len,
+               const unsigned char *seed,int seed_len,
                int *counter_ret, unsigned long *h_ret, BN_GENCB *cb);
 
 int    DSA_generate_key(DSA *a);
@@ -270,6 +309,9 @@ void ERR_load_DSA_strings(void);
 #define DSA_F_DO_DSA_PRINT                              104
 #define DSA_F_DSAPARAMS_PRINT                           100
 #define DSA_F_DSAPARAMS_PRINT_FP                        101
+#define DSA_F_DSA_BUILTIN_KEYGEN                        124
+#define DSA_F_DSA_BUILTIN_PARAMGEN                      125
+#define DSA_F_DSA_BUILTIN_PARAMGEN2                     126
 #define DSA_F_DSA_DO_SIGN                               112
 #define DSA_F_DSA_DO_VERIFY                             113
 #define DSA_F_DSA_NEW_METHOD                            103
@@ -282,6 +324,7 @@ void ERR_load_DSA_strings(void);
 #define DSA_F_DSA_SIGN                                  106
 #define DSA_F_DSA_SIGN_SETUP                            107
 #define DSA_F_DSA_SIG_NEW                               109
+#define DSA_F_DSA_SIG_PRINT                             123
 #define DSA_F_DSA_VERIFY                                108
 #define DSA_F_I2D_DSA_SIG                               111
 #define DSA_F_OLD_DSA_PRIV_DECODE                       122
@@ -296,10 +339,14 @@ void ERR_load_DSA_strings(void);
 #define DSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE               100
 #define DSA_R_DECODE_ERROR                              104
 #define DSA_R_INVALID_DIGEST_TYPE                       106
+#define DSA_R_INVALID_PARAMETERS                        112
+#define DSA_R_KEY_SIZE_TOO_SMALL                        111
 #define DSA_R_MISSING_PARAMETERS                        101
 #define DSA_R_MODULUS_TOO_LARGE                                 103
+#define DSA_R_NEED_NEW_SETUP_VALUES                     110
 #define DSA_R_NO_PARAMETERS_SET                                 107
 #define DSA_R_PARAMETER_ENCODING_ERROR                  105
+#define DSA_R_Q_NOT_PRIME                               113
 
 #ifdef  __cplusplus
 }