Import of old SSLeay release: SSLeay 0.9.1b (unreleased)

[openssl.git] / crypto / rsa / rsa_lib.c

diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index 95a56f8a28c8e8f38132c45e4802db7202b666f0..5ce51f9f56b5c4a3fa3d00cce7bc60d12b5e950b 100644 (file)
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -63,7 +63,7 @@
 #include "bn.h"
 #include "rsa.h"
 
-char *RSA_version="RSA part of SSLeay 0.9.0b 29-Jun-1998";
+char *RSA_version="RSA part of SSLeay 0.9.1a 06-Jul-1998";
 
 static RSA_METHOD *default_RSA_meth=NULL;
 static int rsa_meth_num=0;
@@ -120,13 +120,15 @@ RSA_METHOD *meth;
        ret->method_mod_p=NULL;
        ret->method_mod_q=NULL;
        ret->blinding=NULL;
+       ret->bignum_data=NULL;
        ret->flags=ret->meth->flags;
        if ((ret->meth->init != NULL) && !ret->meth->init(ret))
                {
                Free(ret);
                ret=NULL;
                }
-       CRYPTO_new_ex_data(rsa_meth,(char *)ret,&ret->ex_data);
+       else
+               CRYPTO_new_ex_data(rsa_meth,(char *)ret,&ret->ex_data);
        return(ret);
        }
 
@@ -164,6 +166,7 @@ RSA *r;
        if (r->dmq1 != NULL) BN_clear_free(r->dmq1);
        if (r->iqmp != NULL) BN_clear_free(r->iqmp);
        if (r->blinding != NULL) BN_BLINDING_free(r->blinding);
+       if (r->bignum_data != NULL) Free_locked(r->bignum_data);
        Free(r);
        }
 
@@ -275,10 +278,10 @@ BN_CTX *p_ctx;
        if (rsa->blinding != NULL)
                BN_BLINDING_free(rsa->blinding);
 
-       A=ctx->bn[0];
+       A= &(ctx->bn[0]);
        ctx->tos++;
        if (!BN_rand(A,BN_num_bits(rsa->n)-1,1,0)) goto err;
-       if ((Ai=BN_mod_inverse(A,rsa->n,ctx)) == NULL) goto err;
+       if ((Ai=BN_mod_inverse(NULL,A,rsa->n,ctx)) == NULL) goto err;
 
        if (!rsa->meth->bn_mod_exp(A,A,rsa->e,rsa->n,ctx,
                (char *)rsa->method_mod_n)) goto err;
@@ -292,3 +295,49 @@ err:
        return(ret);
        }
 
+int RSA_memory_lock(r)
+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=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);
+       }
+