/* crypto/rsa/rsa_lib.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
*/
#include <stdio.h>
+#include <openssl/crypto.h>
#include "cryptlib.h"
-#include "bn.h"
-#include "rsa.h"
+#include <openssl/lhash.h>
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+#include <openssl/engine.h>
-char *RSA_version="RSA part of SSLeay 0.8.1b 29-Jun-1998";
+const char *RSA_version="RSA" OPENSSL_VERSION_PTEXT;
-static RSA_METHOD *default_RSA_meth=NULL;
+static const RSA_METHOD *default_RSA_meth=NULL;
+static int rsa_meth_num=0;
+static STACK_OF(CRYPTO_EX_DATA_FUNCS) *rsa_meth=NULL;
-RSA *RSA_new()
+RSA *RSA_new(void)
{
return(RSA_new_method(NULL));
}
-void RSA_set_default_method(meth)
-RSA_METHOD *meth;
+void RSA_set_default_openssl_method(const RSA_METHOD *meth)
{
- default_RSA_meth=meth;
+ ENGINE *e;
+ /* We'll need to notify the "openssl" ENGINE of this
+ * change too. We won't bother locking things down at
+ * our end as there was never any locking in these
+ * functions! */
+ if(default_RSA_meth != meth)
+ {
+ default_RSA_meth = meth;
+ e = ENGINE_by_id("openssl");
+ if(e)
+ {
+ ENGINE_set_RSA(e, meth);
+ ENGINE_free(e);
+ }
+ }
}
-RSA *RSA_new_method(meth)
-RSA_METHOD *meth;
- {
- RSA *ret;
-
+const RSA_METHOD *RSA_get_default_openssl_method(void)
+{
if (default_RSA_meth == NULL)
{
-#ifdef RSAref
+#ifdef RSA_NULL
+ default_RSA_meth=RSA_null_method();
+#else
+#if 0 /* was: #ifdef RSAref */
default_RSA_meth=RSA_PKCS1_RSAref();
#else
default_RSA_meth=RSA_PKCS1_SSLeay();
+#endif
#endif
}
- ret=(RSA *)Malloc(sizeof(RSA));
+
+ return default_RSA_meth;
+}
+
+const RSA_METHOD *RSA_get_method(const RSA *rsa)
+{
+ return ENGINE_get_RSA(rsa->engine);
+}
+
+#if 0
+RSA_METHOD *RSA_set_method(RSA *rsa, RSA_METHOD *meth)
+{
+ RSA_METHOD *mtmp;
+ mtmp = rsa->meth;
+ if (mtmp->finish) mtmp->finish(rsa);
+ rsa->meth = meth;
+ if (meth->init) meth->init(rsa);
+ return mtmp;
+}
+#else
+int RSA_set_method(RSA *rsa, ENGINE *engine)
+{
+ ENGINE *mtmp;
+ const RSA_METHOD *meth;
+ mtmp = rsa->engine;
+ meth = ENGINE_get_RSA(mtmp);
+ if (!ENGINE_init(engine))
+ return 0;
+ if (meth->finish) meth->finish(rsa);
+ rsa->engine = engine;
+ meth = ENGINE_get_RSA(engine);
+ if (meth->init) meth->init(rsa);
+ /* SHOULD ERROR CHECK THIS!!! */
+ ENGINE_finish(mtmp);
+ return 1;
+}
+#endif
+
+#if 0
+RSA *RSA_new_method(RSA_METHOD *meth)
+#else
+RSA *RSA_new_method(ENGINE *engine)
+#endif
+ {
+ const RSA_METHOD *meth;
+ RSA *ret;
+
+ ret=(RSA *)OPENSSL_malloc(sizeof(RSA));
if (ret == NULL)
{
RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
return(NULL);
}
- if (meth == NULL)
- ret->meth=default_RSA_meth;
+ if (engine == NULL)
+ {
+ if((ret->engine=ENGINE_get_default_RSA()) == NULL)
+ {
+ OPENSSL_free(ret);
+ return NULL;
+ }
+ }
else
- ret->meth=meth;
+ ret->engine=engine;
+ meth = ENGINE_get_RSA(ret->engine);
ret->pad=0;
ret->version=0;
ret->dmq1=NULL;
ret->iqmp=NULL;
ret->references=1;
- ret->app_data=NULL;
- if ((ret->meth->init != NULL) && !ret->meth->init(ret))
+ ret->_method_mod_n=NULL;
+ ret->_method_mod_p=NULL;
+ ret->_method_mod_q=NULL;
+ ret->blinding=NULL;
+ ret->bignum_data=NULL;
+ ret->flags=meth->flags;
+ CRYPTO_new_ex_data(rsa_meth,ret,&ret->ex_data);
+ if ((meth->init != NULL) && !meth->init(ret))
{
- Free(ret);
+ CRYPTO_free_ex_data(rsa_meth, ret, &ret->ex_data);
+ OPENSSL_free(ret);
ret=NULL;
}
return(ret);
}
-void RSA_free(r)
-RSA *r;
+void RSA_free(RSA *r)
{
+ const RSA_METHOD *meth;
int i;
if (r == NULL) return;
i=CRYPTO_add(&r->references,-1,CRYPTO_LOCK_RSA);
+#ifdef REF_PRINT
+ REF_PRINT("RSA",r);
+#endif
if (i > 0) return;
#ifdef REF_CHECK
if (i < 0)
}
#endif
- if (r->meth->finish != NULL)
- r->meth->finish(r);
+ meth = ENGINE_get_RSA(r->engine);
+ if (meth->finish != NULL)
+ meth->finish(r);
+ ENGINE_finish(r->engine);
+
+ CRYPTO_free_ex_data(rsa_meth,r,&r->ex_data);
if (r->n != NULL) BN_clear_free(r->n);
if (r->e != NULL) BN_clear_free(r->e);
if (r->dmp1 != NULL) BN_clear_free(r->dmp1);
if (r->dmq1 != NULL) BN_clear_free(r->dmq1);
if (r->iqmp != NULL) BN_clear_free(r->iqmp);
- Free(r);
+ if (r->blinding != NULL) BN_BLINDING_free(r->blinding);
+ if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data);
+ OPENSSL_free(r);
+ }
+
+int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
+ CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
+ {
+ rsa_meth_num++;
+ return(CRYPTO_get_ex_new_index(rsa_meth_num-1,
+ &rsa_meth,argl,argp,new_func,dup_func,free_func));
+ }
+
+int RSA_set_ex_data(RSA *r, int idx, void *arg)
+ {
+ return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
+ }
+
+void *RSA_get_ex_data(const RSA *r, int idx)
+ {
+ return(CRYPTO_get_ex_data(&r->ex_data,idx));
}
-int RSA_size(r)
-RSA *r;
+int RSA_size(const RSA *r)
{
return(BN_num_bytes(r->n));
}
-int RSA_public_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_public_encrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
- return(rsa->meth->rsa_pub_enc(flen, from, to, rsa, padding));
+ return(ENGINE_get_RSA(rsa->engine)->rsa_pub_enc(flen,
+ from, to, rsa, padding));
}
-int RSA_private_encrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
- return(rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding));
+ return(ENGINE_get_RSA(rsa->engine)->rsa_priv_enc(flen,
+ from, to, rsa, padding));
}
-int RSA_private_decrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
- return(rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding));
+ return(ENGINE_get_RSA(rsa->engine)->rsa_priv_dec(flen,
+ from, to, rsa, padding));
}
-int RSA_public_decrypt(flen, from, to, rsa, padding)
-int flen;
-unsigned char *from;
-unsigned char *to;
-RSA *rsa;
-int padding;
+int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
+ RSA *rsa, int padding)
{
- return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding));
+ return(ENGINE_get_RSA(rsa->engine)->rsa_pub_dec(flen,
+ from, to, rsa, padding));
+ }
+
+int RSA_flags(const RSA *r)
+ {
+ return((r == NULL)?0:ENGINE_get_RSA(r->engine)->flags);
+ }
+
+void RSA_blinding_off(RSA *rsa)
+ {
+ if (rsa->blinding != NULL)
+ {
+ BN_BLINDING_free(rsa->blinding);
+ rsa->blinding=NULL;
+ }
+ rsa->flags&= ~RSA_FLAG_BLINDING;
+ }
+
+int RSA_blinding_on(RSA *rsa, BN_CTX *p_ctx)
+ {
+ BIGNUM *A,*Ai;
+ BN_CTX *ctx;
+ int ret=0;
+
+ if (p_ctx == NULL)
+ {
+ if ((ctx=BN_CTX_new()) == NULL) goto err;
+ }
+ else
+ ctx=p_ctx;
+
+ if (rsa->blinding != NULL)
+ BN_BLINDING_free(rsa->blinding);
+
+ BN_CTX_start(ctx);
+ A = BN_CTX_get(ctx);
+ if (!BN_rand(A,BN_num_bits(rsa->n)-1,1,0)) goto err;
+ if ((Ai=BN_mod_inverse(NULL,A,rsa->n,ctx)) == NULL) goto err;
+
+ if (!ENGINE_get_RSA(rsa->engine)->bn_mod_exp(A,A,
+ rsa->e,rsa->n,ctx,rsa->_method_mod_n))
+ goto err;
+ rsa->blinding=BN_BLINDING_new(A,Ai,rsa->n);
+ rsa->flags|=RSA_FLAG_BLINDING;
+ BN_free(Ai);
+ ret=1;
+err:
+ BN_CTX_end(ctx);
+ if (ctx != p_ctx) BN_CTX_free(ctx);
+ return(ret);
+ }
+
+int RSA_memory_lock(RSA *r)
+ {
+ int i,j,k,off;
+ char *p;
+ BIGNUM *bn,**t[6],*b;
+ BN_ULONG *ul;
+
+ if (r->d == NULL) return(1);
+ t[0]= &r->d;
+ t[1]= &r->p;
+ t[2]= &r->q;
+ t[3]= &r->dmp1;
+ t[4]= &r->dmq1;
+ t[5]= &r->iqmp;
+ k=sizeof(BIGNUM)*6;
+ off=k/sizeof(BN_ULONG)+1;
+ j=1;
+ for (i=0; i<6; i++)
+ j+= (*t[i])->top;
+ if ((p=OPENSSL_malloc_locked((off+j)*sizeof(BN_ULONG))) == NULL)
+ {
+ RSAerr(RSA_F_MEMORY_LOCK,ERR_R_MALLOC_FAILURE);
+ return(0);
+ }
+ bn=(BIGNUM *)p;
+ ul=(BN_ULONG *)&(p[off]);
+ for (i=0; i<6; i++)
+ {
+ b= *(t[i]);
+ *(t[i])= &(bn[i]);
+ memcpy((char *)&(bn[i]),(char *)b,sizeof(BIGNUM));
+ bn[i].flags=BN_FLG_STATIC_DATA;
+ bn[i].d=ul;
+ memcpy((char *)ul,b->d,sizeof(BN_ULONG)*b->top);
+ ul+=b->top;
+ BN_clear_free(b);
+ }
+
+ /* I should fix this so it can still be done */
+ r->flags&= ~(RSA_FLAG_CACHE_PRIVATE|RSA_FLAG_CACHE_PUBLIC);
+
+ r->bignum_data=p;
+ return(1);
}