Run util/openssl-format-source -v -c .
[openssl.git] / demos / engines / rsaref / rsaref.c
index f97974fc497939f3734679abf72d9d320d01f705..498cc7098fe5f165883e5c1cc236c080848e5e85 100644 (file)
@@ -1,6 +1,8 @@
-/* Demo of how to construct your own engine and using it.  The basis of this
-   engine is RSAref, an old reference of the RSA algorithm which can still
-   be found a little here and there. */
+/*
+ * Demo of how to construct your own engine and using it.  The basis of this
+ * engine is RSAref, an old reference of the RSA algorithm which can still be
+ * found a little here and there.
+ */
 
 #include <stdio.h>
 #include <string.h>
@@ -35,177 +37,172 @@ static int rsaref_destroy(ENGINE *e);
 static int rsaref_init(ENGINE *e);
 static int rsaref_finish(ENGINE *e);
 #if 0
-static int rsaref_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)()); 
+static int rsaref_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) ());
 #endif
 
 /*****************************************************************************
  * Engine commands
  **/
 static const ENGINE_CMD_DEFN rsaref_cmd_defns[] = {
-       {0, NULL, NULL, 0}
-       };
+    {0, NULL, NULL, 0}
+};
 
 /*****************************************************************************
  * RSA functions
  **/
 static int rsaref_private_decrypt(int len, const unsigned char *from,
-       unsigned char *to, RSA *rsa, int padding);
+                                  unsigned char *to, RSA *rsa, int padding);
 static int rsaref_private_encrypt(int len, const unsigned char *from,
-       unsigned char *to, RSA *rsa, int padding);
+                                  unsigned char *to, RSA *rsa, int padding);
 static int rsaref_public_encrypt(int len, const unsigned char *from,
-       unsigned char *to, RSA *rsa, int padding);
+                                 unsigned char *to, RSA *rsa, int padding);
 static int rsaref_public_decrypt(int len, const unsigned char *from,
-       unsigned char *to, RSA *rsa, int padding);
-static int bnref_mod_exp(BIGNUM *r,const BIGNUM *a,const BIGNUM *p,const BIGNUM *m,
-                         BN_CTX *ctx, BN_MONT_CTX *m_ctx);
+                                 unsigned char *to, RSA *rsa, int padding);
+static int bnref_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+                         const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx);
 static int rsaref_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa);
 
 /*****************************************************************************
  * Our RSA method
  **/
-static RSA_METHOD rsaref_rsa =
-{
-  "RSAref PKCS#1 RSA",
-  rsaref_public_encrypt,
-  rsaref_public_decrypt,
-  rsaref_private_encrypt,
-  rsaref_private_decrypt,
-  rsaref_mod_exp,
-  bnref_mod_exp,
-  NULL,
-  NULL,
-  0,
-  NULL,
-  NULL,
-  NULL
+static RSA_METHOD rsaref_rsa = {
+    "RSAref PKCS#1 RSA",
+    rsaref_public_encrypt,
+    rsaref_public_decrypt,
+    rsaref_private_encrypt,
+    rsaref_private_decrypt,
+    rsaref_mod_exp,
+    bnref_mod_exp,
+    NULL,
+    NULL,
+    0,
+    NULL,
+    NULL,
+    NULL
 };
 
 /*****************************************************************************
  * Symetric cipher and digest function registrars
  **/
 static int rsaref_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
-       const int **nids, int nid);
+                          const int **nids, int nid);
 static int rsaref_digests(ENGINE *e, const EVP_MD **digest,
-       const int **nids, int nid);
+                          const int **nids, int nid);
 
 static int rsaref_cipher_nids[] =
-       { NID_des_cbc, NID_des_ede3_cbc, NID_desx_cbc, 0 };
-static int rsaref_digest_nids[] =
-       { NID_md2, NID_md5, 0 };
+    { NID_des_cbc, NID_des_ede3_cbc, NID_desx_cbc, 0 };
+static int rsaref_digest_nids[] = { NID_md2, NID_md5, 0 };
 
 /*****************************************************************************
  * DES functions
  **/
 static int cipher_des_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-       const unsigned char *iv, int enc);
+                               const unsigned char *iv, int enc);
 static int cipher_des_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
-       const unsigned char *in, unsigned int inl);
+                               const unsigned char *in, unsigned int inl);
 static int cipher_des_cbc_clean(EVP_CIPHER_CTX *);
-static int cipher_des_ede3_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-       const unsigned char *iv, int enc);
+static int cipher_des_ede3_cbc_init(EVP_CIPHER_CTX *ctx,
+                                    const unsigned char *key,
+                                    const unsigned char *iv, int enc);
 static int cipher_des_ede3_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
-       const unsigned char *in, unsigned int inl);
+                                    const unsigned char *in,
+                                    unsigned int inl);
 static int cipher_des_ede3_cbc_clean(EVP_CIPHER_CTX *);
 static int cipher_desx_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-       const unsigned char *iv, int enc);
+                                const unsigned char *iv, int enc);
 static int cipher_desx_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
-       const unsigned char *in, unsigned int inl);
+                                const unsigned char *in, unsigned int inl);
 static int cipher_desx_cbc_clean(EVP_CIPHER_CTX *);
 
 /*****************************************************************************
  * Our DES ciphers
  **/
-static const EVP_CIPHER cipher_des_cbc =
-       {
-       NID_des_cbc,
-       8, 8, 8,
-       0 | EVP_CIPH_CBC_MODE,
-       cipher_des_cbc_init,
-       cipher_des_cbc_code,
-       cipher_des_cbc_clean,
-       sizeof(DES_CBC_CTX),
-       NULL,
-       NULL,
-       NULL,
-       NULL
-       };
-
-static const EVP_CIPHER cipher_des_ede3_cbc =
-       {
-       NID_des_ede3_cbc,
-       8, 24, 8,
-       0 | EVP_CIPH_CBC_MODE,
-       cipher_des_ede3_cbc_init,
-       cipher_des_ede3_cbc_code,
-       cipher_des_ede3_cbc_clean,
-       sizeof(DES3_CBC_CTX),
-       NULL,
-       NULL,
-       NULL,
-       NULL
-       };
-
-static const EVP_CIPHER cipher_desx_cbc =
-       {
-       NID_desx_cbc,
-       8, 24, 8,
-       0 | EVP_CIPH_CBC_MODE,
-       cipher_desx_cbc_init,
-       cipher_desx_cbc_code,
-       cipher_desx_cbc_clean,
-       sizeof(DESX_CBC_CTX),
-       NULL,
-       NULL,
-       NULL,
-       NULL
-       };
+static const EVP_CIPHER cipher_des_cbc = {
+    NID_des_cbc,
+    8, 8, 8,
+    0 | EVP_CIPH_CBC_MODE,
+    cipher_des_cbc_init,
+    cipher_des_cbc_code,
+    cipher_des_cbc_clean,
+    sizeof(DES_CBC_CTX),
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
+static const EVP_CIPHER cipher_des_ede3_cbc = {
+    NID_des_ede3_cbc,
+    8, 24, 8,
+    0 | EVP_CIPH_CBC_MODE,
+    cipher_des_ede3_cbc_init,
+    cipher_des_ede3_cbc_code,
+    cipher_des_ede3_cbc_clean,
+    sizeof(DES3_CBC_CTX),
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
+
+static const EVP_CIPHER cipher_desx_cbc = {
+    NID_desx_cbc,
+    8, 24, 8,
+    0 | EVP_CIPH_CBC_MODE,
+    cipher_desx_cbc_init,
+    cipher_desx_cbc_code,
+    cipher_desx_cbc_clean,
+    sizeof(DESX_CBC_CTX),
+    NULL,
+    NULL,
+    NULL,
+    NULL
+};
 
 /*****************************************************************************
  * MD functions
  **/
 static int digest_md2_init(EVP_MD_CTX *ctx);
-static int digest_md2_update(EVP_MD_CTX *ctx,const void *data,
-       unsigned long count);
-static int digest_md2_final(EVP_MD_CTX *ctx,unsigned char *md);
+static int digest_md2_update(EVP_MD_CTX *ctx, const void *data,
+                             unsigned long count);
+static int digest_md2_final(EVP_MD_CTX *ctx, unsigned char *md);
 static int digest_md5_init(EVP_MD_CTX *ctx);
-static int digest_md5_update(EVP_MD_CTX *ctx,const void *data,
-       unsigned long count);
-static int digest_md5_final(EVP_MD_CTX *ctx,unsigned char *md);
+static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
+                             unsigned long count);
+static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md);
 
 /*****************************************************************************
  * Our MD digests
  **/
-static const EVP_MD digest_md2 =
-       {
-       NID_md2,
-       NID_md2WithRSAEncryption,
-       16,
-       0,
-       digest_md2_init,
-       digest_md2_update,
-       digest_md2_final,
-       NULL,
-       NULL,
-       EVP_PKEY_RSA_method,
-       16,
-       sizeof(MD2_CTX)
-       };
-
-static const EVP_MD digest_md5 =
-       {
-       NID_md5,
-       NID_md5WithRSAEncryption,
-       16,
-       0,
-       digest_md5_init,
-       digest_md5_update,
-       digest_md5_final,
-       NULL,
-       NULL,
-       EVP_PKEY_RSA_method,
-       64,
-       sizeof(MD5_CTX)
-       };
+static const EVP_MD digest_md2 = {
+    NID_md2,
+    NID_md2WithRSAEncryption,
+    16,
+    0,
+    digest_md2_init,
+    digest_md2_update,
+    digest_md2_final,
+    NULL,
+    NULL,
+    EVP_PKEY_RSA_method,
+    16,
+    sizeof(MD2_CTX)
+};
+
+static const EVP_MD digest_md5 = {
+    NID_md5,
+    NID_md5WithRSAEncryption,
+    16,
+    0,
+    digest_md5_init,
+    digest_md5_update,
+    digest_md5_final,
+    NULL,
+    NULL,
+    EVP_PKEY_RSA_method,
+    64,
+    sizeof(MD5_CTX)
+};
 
 /*****************************************************************************
  *** Function definitions                                                  ***
@@ -216,337 +213,359 @@ static const EVP_MD digest_md5 =
  **/
 
 static int bind_rsaref(ENGINE *e)
-       {
-       const RSA_METHOD *meth1;
-       if(!ENGINE_set_id(e, engine_rsaref_id)
-               || !ENGINE_set_name(e, engine_rsaref_name)
-               || !ENGINE_set_RSA(e, &rsaref_rsa)
-               || !ENGINE_set_ciphers(e, rsaref_ciphers)
-               || !ENGINE_set_digests(e, rsaref_digests)
-               || !ENGINE_set_destroy_function(e, rsaref_destroy)
-               || !ENGINE_set_init_function(e, rsaref_init)
-               || !ENGINE_set_finish_function(e, rsaref_finish)
-               /* || !ENGINE_set_ctrl_function(e, rsaref_ctrl) */
-               /* || !ENGINE_set_cmd_defns(e, rsaref_cmd_defns) */)
-               return 0;
-
-       /* Ensure the rsaref error handling is set up */
-       ERR_load_RSAREF_strings();
-       return 1;
-       }
+{
+    const RSA_METHOD *meth1;
+    if (!ENGINE_set_id(e, engine_rsaref_id)
+        || !ENGINE_set_name(e, engine_rsaref_name)
+        || !ENGINE_set_RSA(e, &rsaref_rsa)
+        || !ENGINE_set_ciphers(e, rsaref_ciphers)
+        || !ENGINE_set_digests(e, rsaref_digests)
+        || !ENGINE_set_destroy_function(e, rsaref_destroy)
+        || !ENGINE_set_init_function(e, rsaref_init)
+        || !ENGINE_set_finish_function(e, rsaref_finish)
+        /* || !ENGINE_set_ctrl_function(e, rsaref_ctrl) */
+        /*
+         * || !ENGINE_set_cmd_defns(e, rsaref_cmd_defns)
+         */ )
+        return 0;
+
+    /* Ensure the rsaref error handling is set up */
+    ERR_load_RSAREF_strings();
+    return 1;
+}
 
 #ifdef ENGINE_DYNAMIC_SUPPORT
 static int bind_helper(ENGINE *e, const char *id)
-       {
-       if(id && (strcmp(id, engine_rsaref_id) != 0))
-               return 0;
-       if(!bind_rsaref(e))
-               return 0;
-       return 1;
-       }       
+{
+    if (id && (strcmp(id, engine_rsaref_id) != 0))
+        return 0;
+    if (!bind_rsaref(e))
+        return 0;
+    return 1;
+}
+
 IMPLEMENT_DYNAMIC_CHECK_FN()
-IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
+    IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
 #else
 static ENGINE *engine_rsaref(void)
-       {
-       ENGINE *ret = ENGINE_new();
-       if(!ret)
-               return NULL;
-       if(!bind_rsaref(ret))
-               {
-               ENGINE_free(ret);
-               return NULL;
-               }
-       return ret;
-       }
+{
+    ENGINE *ret = ENGINE_new();
+    if (!ret)
+        return NULL;
+    if (!bind_rsaref(ret)) {
+        ENGINE_free(ret);
+        return NULL;
+    }
+    return ret;
+}
 
 void ENGINE_load_rsaref(void)
-       {
-       /* Copied from eng_[openssl|dyn].c */
-       ENGINE *toadd = engine_rsaref();
-       if(!toadd) return;
-       ENGINE_add(toadd);
-       ENGINE_free(toadd);
-       ERR_clear_error();
-       }
+{
+    /* Copied from eng_[openssl|dyn].c */
+    ENGINE *toadd = engine_rsaref();
+    if (!toadd)
+        return;
+    ENGINE_add(toadd);
+    ENGINE_free(toadd);
+    ERR_clear_error();
+}
 #endif
 
 /* Initiator which is only present to make sure this engine looks available */
 static int rsaref_init(ENGINE *e)
-       {
-       return 1;
-       }
+{
+    return 1;
+}
 
 /* Finisher which is only present to make sure this engine looks available */
 static int rsaref_finish(ENGINE *e)
-       {
-       return 1;
-       }
+{
+    return 1;
+}
 
 /* Destructor (complements the "ENGINE_ncipher()" constructor) */
 static int rsaref_destroy(ENGINE *e)
-       {
-       ERR_unload_RSAREF_strings();
-       return 1;
-       }
+{
+    ERR_unload_RSAREF_strings();
+    return 1;
+}
 
 /*****************************************************************************
  * RSA functions
  **/
 
 static int rsaref_mod_exp(BIGNUM *r0, const BIGNUM *I, RSA *rsa)
-       {
-       RSAREFerr(RSAREF_F_RSAREF_MOD_EXP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
-       return(0);
-       }
+{
+    RSAREFerr(RSAREF_F_RSAREF_MOD_EXP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+    return (0);
+}
 
 static int bnref_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
-                         const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
-       {
-       RSAREFerr(RSAREF_F_BNREF_MOD_EXP,ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
-       return(0);
-       }
+                         const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx)
+{
+    RSAREFerr(RSAREF_F_BNREF_MOD_EXP, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED);
+    return (0);
+}
 
 /* unsigned char *to:  [max]    */
 static int RSAref_bn2bin(BIGNUM *from, unsigned char *to, int max)
-       {
-       int i;
-
-       i=BN_num_bytes(from);
-       if (i > max)
-               {
-               RSAREFerr(RSAREF_F_RSAREF_BN2BIN,RSAREF_R_LEN);
-               return(0);
-               }
-
-       memset(to,0,(unsigned int)max);
-       if (!BN_bn2bin(from,&(to[max-i])))
-               return(0);
-       return(1);
-       }
+{
+    int i;
+
+    i = BN_num_bytes(from);
+    if (i > max) {
+        RSAREFerr(RSAREF_F_RSAREF_BN2BIN, RSAREF_R_LEN);
+        return (0);
+    }
+
+    memset(to, 0, (unsigned int)max);
+    if (!BN_bn2bin(from, &(to[max - i])))
+        return (0);
+    return (1);
+}
 
 #ifdef undef
 /* unsigned char *from:  [max]    */
 static BIGNUM *RSAref_bin2bn(unsigned char *from, BIGNUM *to, int max)
-       {
-       int i;
-       BIGNUM *ret;
-
-       for (i=0; i<max; i++)
-               if (from[i]) break;
-
-       ret=BN_bin2bn(&(from[i]),max-i,to);
-       return(ret);
-       }
-
-static int RSAref_Public_ref2eay(RSArefPublicKey *from, RSA *to)
-       {
-       to->n=RSAref_bin2bn(from->m,NULL,RSAref_MAX_LEN);
-       to->e=RSAref_bin2bn(from->e,NULL,RSAref_MAX_LEN);
-       if ((to->n == NULL) || (to->e == NULL)) return(0);
-       return(1);
-       }
+{
+    int i;
+    BIGNUM *ret;
+
+    for (i = 0; i < max; i++)
+        if (from[i])
+            break;
+
+    ret = BN_bin2bn(&(from[i]), max - i, to);
+    return (ret);
+}
+
+static int RSAref_Public_ref2eay(RSArefPublicKey * from, RSA *to)
+{
+    to->n = RSAref_bin2bn(from->m, NULL, RSAref_MAX_LEN);
+    to->e = RSAref_bin2bn(from->e, NULL, RSAref_MAX_LEN);
+    if ((to->n == NULL) || (to->e == NULL))
+        return (0);
+    return (1);
+}
 #endif
 
-static int RSAref_Public_eay2ref(RSA *from, R_RSA_PUBLIC_KEY *to)
-       {
-       to->bits=BN_num_bits(from->n);
-       if (!RSAref_bn2bin(from->n,to->modulus,MAX_RSA_MODULUS_LEN)) return(0);
-       if (!RSAref_bn2bin(from->e,to->exponent,MAX_RSA_MODULUS_LEN)) return(0);
-       return(1);
-       }
+static int RSAref_Public_eay2ref(RSA *from, R_RSA_PUBLIC_KEY * to)
+{
+    to->bits = BN_num_bits(from->n);
+    if (!RSAref_bn2bin(from->n, to->modulus, MAX_RSA_MODULUS_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->e, to->exponent, MAX_RSA_MODULUS_LEN))
+        return (0);
+    return (1);
+}
 
 #ifdef undef
-static int RSAref_Private_ref2eay(RSArefPrivateKey *from, RSA *to)
-       {
-       if ((to->n=RSAref_bin2bn(from->m,NULL,RSAref_MAX_LEN)) == NULL)
-               return(0);
-       if ((to->e=RSAref_bin2bn(from->e,NULL,RSAref_MAX_LEN)) == NULL)
-               return(0);
-       if ((to->d=RSAref_bin2bn(from->d,NULL,RSAref_MAX_LEN)) == NULL)
-               return(0);
-       if ((to->p=RSAref_bin2bn(from->prime[0],NULL,RSAref_MAX_PLEN)) == NULL)
-               return(0);
-       if ((to->q=RSAref_bin2bn(from->prime[1],NULL,RSAref_MAX_PLEN)) == NULL)
-               return(0);
-       if ((to->dmp1=RSAref_bin2bn(from->pexp[0],NULL,RSAref_MAX_PLEN))
-               == NULL)
-               return(0);
-       if ((to->dmq1=RSAref_bin2bn(from->pexp[1],NULL,RSAref_MAX_PLEN))
-               == NULL)
-               return(0);
-       if ((to->iqmp=RSAref_bin2bn(from->coef,NULL,RSAref_MAX_PLEN)) == NULL)
-               return(0);
-       return(1);
-       }
+static int RSAref_Private_ref2eay(RSArefPrivateKey * from, RSA *to)
+{
+    if ((to->n = RSAref_bin2bn(from->m, NULL, RSAref_MAX_LEN)) == NULL)
+        return (0);
+    if ((to->e = RSAref_bin2bn(from->e, NULL, RSAref_MAX_LEN)) == NULL)
+        return (0);
+    if ((to->d = RSAref_bin2bn(from->d, NULL, RSAref_MAX_LEN)) == NULL)
+        return (0);
+    if ((to->p =
+         RSAref_bin2bn(from->prime[0], NULL, RSAref_MAX_PLEN)) == NULL)
+        return (0);
+    if ((to->q =
+         RSAref_bin2bn(from->prime[1], NULL, RSAref_MAX_PLEN)) == NULL)
+        return (0);
+    if ((to->dmp1 = RSAref_bin2bn(from->pexp[0], NULL, RSAref_MAX_PLEN))
+        == NULL)
+        return (0);
+    if ((to->dmq1 = RSAref_bin2bn(from->pexp[1], NULL, RSAref_MAX_PLEN))
+        == NULL)
+        return (0);
+    if ((to->iqmp = RSAref_bin2bn(from->coef, NULL, RSAref_MAX_PLEN)) == NULL)
+        return (0);
+    return (1);
+}
 #endif
 
-static int RSAref_Private_eay2ref(RSA *from, R_RSA_PRIVATE_KEY *to)
-       {
-       to->bits=BN_num_bits(from->n);
-       if (!RSAref_bn2bin(from->n,to->modulus,MAX_RSA_MODULUS_LEN)) return(0);
-       if (!RSAref_bn2bin(from->e,to->publicExponent,MAX_RSA_MODULUS_LEN)) return(0);
-       if (!RSAref_bn2bin(from->d,to->exponent,MAX_RSA_MODULUS_LEN)) return(0);
-       if (!RSAref_bn2bin(from->p,to->prime[0],MAX_RSA_PRIME_LEN)) return(0);
-       if (!RSAref_bn2bin(from->q,to->prime[1],MAX_RSA_PRIME_LEN)) return(0);
-       if (!RSAref_bn2bin(from->dmp1,to->primeExponent[0],MAX_RSA_PRIME_LEN)) return(0);
-       if (!RSAref_bn2bin(from->dmq1,to->primeExponent[1],MAX_RSA_PRIME_LEN)) return(0);
-       if (!RSAref_bn2bin(from->iqmp,to->coefficient,MAX_RSA_PRIME_LEN)) return(0);
-       return(1);
-       }
-
-static int rsaref_private_decrypt(int len, const unsigned char *from, unsigned char *to,
-            RSA *rsa, int padding)
-       {
-       int i,outlen= -1;
-       R_RSA_PRIVATE_KEY RSAkey;
-
-       if (!RSAref_Private_eay2ref(rsa,&RSAkey))
-               goto err;
-       if ((i=RSAPrivateDecrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey)) != 0)
-               {
-               RSAREFerr(RSAREF_F_RSAREF_PRIVATE_DECRYPT,i);
-               outlen= -1;
-               }
-err:
-       memset(&RSAkey,0,sizeof(RSAkey));
-       return(outlen);
-       }
-
-static int rsaref_private_encrypt(int len, const unsigned char *from, unsigned char *to,
-            RSA *rsa, int padding)
-       {
-       int i,outlen= -1;
-       R_RSA_PRIVATE_KEY RSAkey;
-
-       if (padding != RSA_PKCS1_PADDING)
-               {
-               RSAREFerr(RSAREF_F_RSAREF_PRIVATE_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
-               goto err;
-       }
-       if (!RSAref_Private_eay2ref(rsa,&RSAkey))
-               goto err;
-       if ((i=RSAPrivateEncrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey)) != 0)
-               {
-               RSAREFerr(RSAREF_F_RSAREF_PRIVATE_ENCRYPT,i);
-               outlen= -1;
-               }
-err:
-       memset(&RSAkey,0,sizeof(RSAkey));
-       return(outlen);
-       }
-
-static int rsaref_public_decrypt(int len, const unsigned char *from, unsigned char *to,
-            RSA *rsa, int padding)
-       {
-       int i,outlen= -1;
-       R_RSA_PUBLIC_KEY RSAkey;
-
-       if (!RSAref_Public_eay2ref(rsa,&RSAkey))
-               goto err;
-       if ((i=RSAPublicDecrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey)) != 0)
-               {
-               RSAREFerr(RSAREF_F_RSAREF_PUBLIC_DECRYPT,i);
-               outlen= -1;
-               }
-err:
-       memset(&RSAkey,0,sizeof(RSAkey));
-       return(outlen);
-       }
-
-static int rsaref_public_encrypt(int len, const unsigned char *from, unsigned char *to,
-            RSA *rsa, int padding)
-       {
-       int outlen= -1;
-       int i;
-       R_RSA_PUBLIC_KEY RSAkey;
-       R_RANDOM_STRUCT rnd;
-       unsigned char buf[16];
-
-       if (padding != RSA_PKCS1_PADDING && padding != RSA_SSLV23_PADDING) 
-               {
-               RSAREFerr(RSAREF_F_RSAREF_PUBLIC_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
-               goto err;
-               }
-       
-       R_RandomInit(&rnd);
-       R_GetRandomBytesNeeded((unsigned int *)&i,&rnd);
-       while (i > 0)
-               {
-               if (RAND_bytes(buf,16) <= 0)
-                       goto err;
-               R_RandomUpdate(&rnd,buf,(unsigned int)((i>16)?16:i));
-               i-=16;
-               }
-
-       if (!RSAref_Public_eay2ref(rsa,&RSAkey))
-               goto err;
-       if ((i=RSAPublicEncrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey,&rnd)) != 0)
-               {
-               RSAREFerr(RSAREF_F_RSAREF_PUBLIC_ENCRYPT,i);
-               outlen= -1;
-               goto err;
-               }
-err:
-       memset(&RSAkey,0,sizeof(RSAkey));
-       R_RandomFinal(&rnd);
-       memset(&rnd,0,sizeof(rnd));
-       return(outlen);
-       }
+static int RSAref_Private_eay2ref(RSA *from, R_RSA_PRIVATE_KEY * to)
+{
+    to->bits = BN_num_bits(from->n);
+    if (!RSAref_bn2bin(from->n, to->modulus, MAX_RSA_MODULUS_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->e, to->publicExponent, MAX_RSA_MODULUS_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->d, to->exponent, MAX_RSA_MODULUS_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->p, to->prime[0], MAX_RSA_PRIME_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->q, to->prime[1], MAX_RSA_PRIME_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->dmp1, to->primeExponent[0], MAX_RSA_PRIME_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->dmq1, to->primeExponent[1], MAX_RSA_PRIME_LEN))
+        return (0);
+    if (!RSAref_bn2bin(from->iqmp, to->coefficient, MAX_RSA_PRIME_LEN))
+        return (0);
+    return (1);
+}
+
+static int rsaref_private_decrypt(int len, const unsigned char *from,
+                                  unsigned char *to, RSA *rsa, int padding)
+{
+    int i, outlen = -1;
+    R_RSA_PRIVATE_KEY RSAkey;
+
+    if (!RSAref_Private_eay2ref(rsa, &RSAkey))
+        goto err;
+    if ((i =
+         RSAPrivateDecrypt(to, (unsigned int *)&outlen, (unsigned char *)from,
+                           len, &RSAkey)) != 0) {
+        RSAREFerr(RSAREF_F_RSAREF_PRIVATE_DECRYPT, i);
+        outlen = -1;
+    }
+ err:
+    memset(&RSAkey, 0, sizeof(RSAkey));
+    return (outlen);
+}
+
+static int rsaref_private_encrypt(int len, const unsigned char *from,
+                                  unsigned char *to, RSA *rsa, int padding)
+{
+    int i, outlen = -1;
+    R_RSA_PRIVATE_KEY RSAkey;
+
+    if (padding != RSA_PKCS1_PADDING) {
+        RSAREFerr(RSAREF_F_RSAREF_PRIVATE_ENCRYPT,
+                  RSA_R_UNKNOWN_PADDING_TYPE);
+        goto err;
+    }
+    if (!RSAref_Private_eay2ref(rsa, &RSAkey))
+        goto err;
+    if ((i =
+         RSAPrivateEncrypt(to, (unsigned int *)&outlen, (unsigned char *)from,
+                           len, &RSAkey)) != 0) {
+        RSAREFerr(RSAREF_F_RSAREF_PRIVATE_ENCRYPT, i);
+        outlen = -1;
+    }
+ err:
+    memset(&RSAkey, 0, sizeof(RSAkey));
+    return (outlen);
+}
+
+static int rsaref_public_decrypt(int len, const unsigned char *from,
+                                 unsigned char *to, RSA *rsa, int padding)
+{
+    int i, outlen = -1;
+    R_RSA_PUBLIC_KEY RSAkey;
+
+    if (!RSAref_Public_eay2ref(rsa, &RSAkey))
+        goto err;
+    if ((i =
+         RSAPublicDecrypt(to, (unsigned int *)&outlen, (unsigned char *)from,
+                          len, &RSAkey)) != 0) {
+        RSAREFerr(RSAREF_F_RSAREF_PUBLIC_DECRYPT, i);
+        outlen = -1;
+    }
+ err:
+    memset(&RSAkey, 0, sizeof(RSAkey));
+    return (outlen);
+}
+
+static int rsaref_public_encrypt(int len, const unsigned char *from,
+                                 unsigned char *to, RSA *rsa, int padding)
+{
+    int outlen = -1;
+    int i;
+    R_RSA_PUBLIC_KEY RSAkey;
+    R_RANDOM_STRUCT rnd;
+    unsigned char buf[16];
+
+    if (padding != RSA_PKCS1_PADDING && padding != RSA_SSLV23_PADDING) {
+        RSAREFerr(RSAREF_F_RSAREF_PUBLIC_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
+        goto err;
+    }
+
+    R_RandomInit(&rnd);
+    R_GetRandomBytesNeeded((unsigned int *)&i, &rnd);
+    while (i > 0) {
+        if (RAND_bytes(buf, 16) <= 0)
+            goto err;
+        R_RandomUpdate(&rnd, buf, (unsigned int)((i > 16) ? 16 : i));
+        i -= 16;
+    }
+
+    if (!RSAref_Public_eay2ref(rsa, &RSAkey))
+        goto err;
+    if ((i =
+         RSAPublicEncrypt(to, (unsigned int *)&outlen, (unsigned char *)from,
+                          len, &RSAkey, &rnd)) != 0) {
+        RSAREFerr(RSAREF_F_RSAREF_PUBLIC_ENCRYPT, i);
+        outlen = -1;
+        goto err;
+    }
+ err:
+    memset(&RSAkey, 0, sizeof(RSAkey));
+    R_RandomFinal(&rnd);
+    memset(&rnd, 0, sizeof(rnd));
+    return (outlen);
+}
 
 /*****************************************************************************
  * Symetric cipher and digest function registrars
  **/
 static int rsaref_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
-       const int **nids, int nid)
-       {
-       int ok = 1;
-       if(!cipher)
-               {
-               /* We are returning a list of supported nids */
-               *nids = rsaref_cipher_nids;
-               return (sizeof(rsaref_cipher_nids)-1)/sizeof(rsaref_cipher_nids[0]);
-               }
-       /* We are being asked for a specific cipher */
-       switch (nid)
-               {
-       case NID_des_cbc:
-               *cipher = &cipher_des_cbc; break;
-       case NID_des_ede3_cbc:
-               *cipher = &cipher_des_ede3_cbc; break;
-       case NID_desx_cbc:
-               *cipher = &cipher_desx_cbc; break;
-       default:
-               ok = 0;
-               *cipher = NULL;
-               break;
-               }
-       return ok;
-       }
+                          const int **nids, int nid)
+{
+    int ok = 1;
+    if (!cipher) {
+        /* We are returning a list of supported nids */
+        *nids = rsaref_cipher_nids;
+        return (sizeof(rsaref_cipher_nids) -
+                1) / sizeof(rsaref_cipher_nids[0]);
+    }
+    /* We are being asked for a specific cipher */
+    switch (nid) {
+    case NID_des_cbc:
+        *cipher = &cipher_des_cbc;
+        break;
+    case NID_des_ede3_cbc:
+        *cipher = &cipher_des_ede3_cbc;
+        break;
+    case NID_desx_cbc:
+        *cipher = &cipher_desx_cbc;
+        break;
+    default:
+        ok = 0;
+        *cipher = NULL;
+        break;
+    }
+    return ok;
+}
+
 static int rsaref_digests(ENGINE *e, const EVP_MD **digest,
-       const int **nids, int nid)
-       {
-       int ok = 1;
-       if(!digest)
-               {
-               /* We are returning a list of supported nids */
-               *nids = rsaref_digest_nids;
-               return (sizeof(rsaref_digest_nids)-1)/sizeof(rsaref_digest_nids[0]);
-               }
-       /* We are being asked for a specific digest */
-       switch (nid)
-               {
-       case NID_md2:
-               *digest = &digest_md2; break;
-       case NID_md5:
-               *digest = &digest_md5; break;
-       default:
-               ok = 0;
-               *digest = NULL;
-               break;
-               }
-       return ok;
-       }
+                          const int **nids, int nid)
+{
+    int ok = 1;
+    if (!digest) {
+        /* We are returning a list of supported nids */
+        *nids = rsaref_digest_nids;
+        return (sizeof(rsaref_digest_nids) -
+                1) / sizeof(rsaref_digest_nids[0]);
+    }
+    /* We are being asked for a specific digest */
+    switch (nid) {
+    case NID_md2:
+        *digest = &digest_md2;
+        break;
+    case NID_md5:
+        *digest = &digest_md5;
+        break;
+    default:
+        ok = 0;
+        *digest = NULL;
+        break;
+    }
+    return ok;
+}
 
 /*****************************************************************************
  * DES functions
@@ -554,94 +573,99 @@ static int rsaref_digests(ENGINE *e, const EVP_MD **digest,
 #undef data
 #define data(ctx) ((DES_CBC_CTX *)(ctx)->cipher_data)
 static int cipher_des_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-       const unsigned char *iv, int enc)
-       {
-       DES_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv, enc);
-       return 1;
-       }
+                               const unsigned char *iv, int enc)
+{
+    DES_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv, enc);
+    return 1;
+}
+
 static int cipher_des_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
-       const unsigned char *in, unsigned int inl)
-       {
-       int ret = DES_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
-       switch (ret)
-               {
-       case RE_LEN:
-               RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
-               break;
-       case 0:
-               break;
-       default:
-               RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_UNKNOWN_FAULT);
-               }
-       return !ret;
-       }
+                               const unsigned char *in, unsigned int inl)
+{
+    int ret = DES_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
+    switch (ret) {
+    case RE_LEN:
+        RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,
+                  RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
+        break;
+    case 0:
+        break;
+    default:
+        RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE, RSAREF_R_UNKNOWN_FAULT);
+    }
+    return !ret;
+}
+
 static int cipher_des_cbc_clean(EVP_CIPHER_CTX *ctx)
-       {
-       memset(data(ctx), 0, ctx->cipher->ctx_size);
-       return 1;
-       }
+{
+    memset(data(ctx), 0, ctx->cipher->ctx_size);
+    return 1;
+}
 
 #undef data
 #define data(ctx) ((DES3_CBC_CTX *)(ctx)->cipher_data)
-static int cipher_des_ede3_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-       const unsigned char *iv, int enc)
-       {
-       DES3_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv,
-               enc);
-       return 1;
-       }
+static int cipher_des_ede3_cbc_init(EVP_CIPHER_CTX *ctx,
+                                    const unsigned char *key,
+                                    const unsigned char *iv, int enc)
+{
+    DES3_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv, enc);
+    return 1;
+}
+
 static int cipher_des_ede3_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
-       const unsigned char *in, unsigned int inl)
-       {
-       int ret = DES3_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
-       switch (ret)
-               {
-       case RE_LEN:
-               RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
-               break;
-       case 0:
-               break;
-       default:
-               RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_UNKNOWN_FAULT);
-               }
-       return !ret;
-       }
+                                    const unsigned char *in, unsigned int inl)
+{
+    int ret = DES3_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
+    switch (ret) {
+    case RE_LEN:
+        RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,
+                  RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
+        break;
+    case 0:
+        break;
+    default:
+        RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE, RSAREF_R_UNKNOWN_FAULT);
+    }
+    return !ret;
+}
+
 static int cipher_des_ede3_cbc_clean(EVP_CIPHER_CTX *ctx)
-       {
-       memset(data(ctx), 0, ctx->cipher->ctx_size);
-       return 1;
-       }
+{
+    memset(data(ctx), 0, ctx->cipher->ctx_size);
+    return 1;
+}
 
 #undef data
 #define data(ctx) ((DESX_CBC_CTX *)(ctx)->cipher_data)
 static int cipher_desx_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
-       const unsigned char *iv, int enc)
-       {
-       DESX_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv,
-               enc);
-       return 1;
-       }
+                                const unsigned char *iv, int enc)
+{
+    DESX_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv, enc);
+    return 1;
+}
+
 static int cipher_desx_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
-       const unsigned char *in, unsigned int inl)
-       {
-       int ret = DESX_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
-       switch (ret)
-               {
-       case RE_LEN:
-               RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
-               break;
-       case 0:
-               break;
-       default:
-               RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_UNKNOWN_FAULT);
-               }
-       return !ret;
-       }
+                                const unsigned char *in, unsigned int inl)
+{
+    int ret = DESX_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
+    switch (ret) {
+    case RE_LEN:
+        RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,
+                  RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
+        break;
+    case 0:
+        break;
+    default:
+        RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE, RSAREF_R_UNKNOWN_FAULT);
+    }
+    return !ret;
+}
+
 static int cipher_desx_cbc_clean(EVP_CIPHER_CTX *ctx)
-       {
-       memset(data(ctx), 0, ctx->cipher->ctx_size);
-       return 1;
-       }
+{
+    memset(data(ctx), 0, ctx->cipher->ctx_size);
+    return 1;
+}
 
 /*****************************************************************************
  * MD functions
@@ -649,37 +673,41 @@ static int cipher_desx_cbc_clean(EVP_CIPHER_CTX *ctx)
 #undef data
 #define data(ctx) ((MD2_CTX *)(ctx)->md_data)
 static int digest_md2_init(EVP_MD_CTX *ctx)
-       {
-       MD2Init(data(ctx));
-       return 1;
-       }
-static int digest_md2_update(EVP_MD_CTX *ctx,const void *data,
-       unsigned long count)
-       {
-       MD2Update(data(ctx), (unsigned char *)data, (unsigned int)count);
-       return 1;
-       }
-static int digest_md2_final(EVP_MD_CTX *ctx,unsigned char *md)
-       {
-       MD2Final(md, data(ctx));
-       return 1;
-       }
+{
+    MD2Init(data(ctx));
+    return 1;
+}
+
+static int digest_md2_update(EVP_MD_CTX *ctx, const void *data,
+                             unsigned long count)
+{
+    MD2Update(data(ctx), (unsigned char *)data, (unsigned int)count);
+    return 1;
+}
+
+static int digest_md2_final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    MD2Final(md, data(ctx));
+    return 1;
+}
 
 #undef data
 #define data(ctx) ((MD5_CTX *)(ctx)->md_data)
 static int digest_md5_init(EVP_MD_CTX *ctx)
-       {
-       MD5Init(data(ctx));
-       return 1;
-       }
-static int digest_md5_update(EVP_MD_CTX *ctx,const void *data,
-       unsigned long count)
-       {
-       MD5Update(data(ctx), (unsigned char *)data, (unsigned int)count);
-       return 1;
-       }
-static int digest_md5_final(EVP_MD_CTX *ctx,unsigned char *md)
-       {
-       MD5Final(md, data(ctx));
-       return 1;
-       }
+{
+    MD5Init(data(ctx));
+    return 1;
+}
+
+static int digest_md5_update(EVP_MD_CTX *ctx, const void *data,
+                             unsigned long count)
+{
+    MD5Update(data(ctx), (unsigned char *)data, (unsigned int)count);
+    return 1;
+}
+
+static int digest_md5_final(EVP_MD_CTX *ctx, unsigned char *md)
+{
+    MD5Final(md, data(ctx));
+    return 1;
+}