make sure RSA blinding works when the PRNG is not properly seeded;

[openssl.git] / crypto / rsa / rsa.h

diff --git a/crypto/rsa/rsa.h b/crypto/rsa/rsa.h
index 0966b0dbf79e14e00de57d187005483b1d9866bd..604fc26442740a93729275bc0831851acc18b633 100644 (file)
--- a/crypto/rsa/rsa.h
+++ b/crypto/rsa/rsa.h
@@ -66,6 +66,7 @@
 #endif
 #include <openssl/bn.h>
 #include <openssl/crypto.h>
+#include <openssl/ossl_typ.h>
 
 #ifdef OPENSSL_NO_RSA
 #error RSA is disabled.
@@ -108,12 +109,16 @@ typedef struct rsa_meth_st
  * option is set in 'flags'.
  */
        int (*rsa_sign)(int type,
-               const unsigned char *m, unsigned int m_len,
+               const unsigned char *m, unsigned int m_length,
                unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
        int (*rsa_verify)(int dtype,
-               const unsigned char *m, unsigned int m_len,
+               const unsigned char *m, unsigned int m_length,
                unsigned char *sigbuf, unsigned int siglen, const RSA *rsa);
-
+/* If this callback is NULL, the builtin software RSA key-gen will be used. This
+ * is for behavioural compatibility whilst the code gets rewired, but one day
+ * it would be nice to assume there are no such things as "builtin software"
+ * implementations. */
+       int (*rsa_keygen)(RSA *rsa, int bits, unsigned long e, BN_GENCB *cb);
        } RSA_METHOD;
 
 struct rsa_st
@@ -122,11 +127,9 @@ struct rsa_st
         * this is passed instead of aEVP_PKEY, it is set to 0 */
        int pad;
        long version;
-#if 0
-       RSA_METHOD *meth;
-#else
-       struct engine_st *engine;
-#endif
+       const RSA_METHOD *meth;
+       /* functional reference if 'meth' is ENGINE-provided */
+       ENGINE *engine;
        BIGNUM *n;
        BIGNUM *e;
        BIGNUM *d;
@@ -159,6 +162,11 @@ struct rsa_st
 #define RSA_FLAG_CACHE_PUBLIC          0x02
 #define RSA_FLAG_CACHE_PRIVATE         0x04
 #define RSA_FLAG_BLINDING              0x08
+#define RSA_FLAG_NO_BLINDING           0x80 /* new with 0.9.6j and 0.9.7b; the built-in
+                                              * RSA implementation now uses blinding by
+                                              * default (ignoring RSA_FLAG_BLINDING),
+                                              * but other engines might not need it
+                                              */
 #define RSA_FLAG_THREAD_SAFE           0x10
 /* This flag means the private key operations will be handled by rsa_mod_exp
  * and that they do not depend on the private key components being present:
@@ -171,23 +179,31 @@ struct rsa_st
  */
 #define RSA_FLAG_SIGN_VER              0x40
 
+#define RSA_FLAG_NO_BLINDING           0x80
+
 #define RSA_PKCS1_PADDING      1
 #define RSA_SSLV23_PADDING     2
 #define RSA_NO_PADDING         3
 #define RSA_PKCS1_OAEP_PADDING 4
 
+#define RSA_PKCS1_PADDING_SIZE 11
+
 #define RSA_set_app_data(s,arg)         RSA_set_ex_data(s,0,arg)
 #define RSA_get_app_data(s)             RSA_get_ex_data(s,0)
 
 RSA *  RSA_new(void);
-#if 0
-RSA *  RSA_new_method(RSA_METHOD *method);
-#else
-RSA *  RSA_new_method(struct engine_st *engine);
-#endif
+RSA *  RSA_new_method(ENGINE *engine);
 int    RSA_size(const RSA *);
+
+/* Deprecated version */
+#ifndef OPENSSL_NO_DEPRECATED
 RSA *  RSA_generate_key(int bits, unsigned long e,void
                (*callback)(int,int,void *),void *cb_arg);
+#endif /* !defined(OPENSSL_NO_DEPRECATED) */
+
+/* New version */
+int    RSA_generate_key_ex(RSA *rsa, int bits, unsigned long e, BN_GENCB *cb);
+
 int    RSA_check_key(const RSA *);
        /* next 4 return -1 on error */
 int    RSA_public_encrypt(int flen, const unsigned char *from,
@@ -199,17 +215,15 @@ int       RSA_public_decrypt(int flen, const unsigned char *from,
 int    RSA_private_decrypt(int flen, const unsigned char *from, 
                unsigned char *to, RSA *rsa,int padding);
 void   RSA_free (RSA *r);
+/* "up" the RSA object's reference count */
+int    RSA_up_ref(RSA *r);
 
 int    RSA_flags(const RSA *r);
 
-void RSA_set_default_openssl_method(const RSA_METHOD *meth);
-const RSA_METHOD *RSA_get_default_openssl_method(void);
+void RSA_set_default_method(const RSA_METHOD *meth);
+const RSA_METHOD *RSA_get_default_method(void);
 const RSA_METHOD *RSA_get_method(const RSA *rsa);
-#if 0
-RSA_METHOD *RSA_set_method(RSA *rsa, RSA_METHOD *meth);
-#else
-int RSA_set_method(RSA *rsa, struct engine_st *engine);
-#endif
+int RSA_set_method(RSA *rsa, const RSA_METHOD *meth);
 
 /* This function needs the memory locking malloc callbacks to be installed */
 int RSA_memory_lock(RSA *r);
@@ -238,18 +252,18 @@ RSA *d2i_Netscape_RSA(RSA **a, const unsigned char **pp, long length, int (*cb)(
 
 /* The following 2 functions sign and verify a X509_SIG ASN1 object
  * inside PKCS#1 padded RSA encryption */
-int RSA_sign(int type, const unsigned char *m, unsigned int m_len,
+int RSA_sign(int type, const unsigned char *m, unsigned int m_length,
        unsigned char *sigret, unsigned int *siglen, RSA *rsa);
-int RSA_verify(int type, const unsigned char *m, unsigned int m_len,
+int RSA_verify(int type, const unsigned char *m, unsigned int m_length,
        unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
 
 /* The following 2 function sign and verify a ASN1_OCTET_STRING
  * object inside PKCS#1 padded RSA encryption */
 int RSA_sign_ASN1_OCTET_STRING(int type,
-       const unsigned char *m, unsigned int m_len,
+       const unsigned char *m, unsigned int m_length,
        unsigned char *sigret, unsigned int *siglen, RSA *rsa);
 int RSA_verify_ASN1_OCTET_STRING(int type,
-       const unsigned char *m, unsigned int m_len,
+       const unsigned char *m, unsigned int m_length,
        unsigned char *sigbuf, unsigned int siglen, RSA *rsa);
 
 int RSA_blinding_on(RSA *rsa, BN_CTX *ctx);
@@ -283,6 +297,8 @@ int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
 int RSA_set_ex_data(RSA *r,int idx,void *arg);
 void *RSA_get_ex_data(const RSA *r, int idx);
 
+RSA *RSAPublicKey_dup(RSA *rsa);
+RSA *RSAPrivateKey_dup(RSA *rsa);
 
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes