1 files changed, 222 insertions, 123 deletions

diff --git a/crypto/rsa/rsa_lib.c b/crypto/rsa/rsa_lib.c
index 5714841..c95ceaf 100644
--- a/crypto/rsa/rsa_lib.c
+++ b/crypto/rsa/rsa_lib.c
@@ -67,168 +67,267 @@
 #include <openssl/engine.h>
 #endif
 
-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));
-	}
-
-int RSA_private_encrypt(int flen, const unsigned char *from, unsigned char *to,
-	     RSA *rsa, int padding)
-	{
 #ifdef OPENSSL_FIPS
-	if(FIPS_mode() && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW))
-		{
-		RSAerr(RSA_F_RSA_PRIVATE_ENCRYPT, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
-		return 0;
-		}
+#include <openssl/fips.h>
 #endif
-	return(rsa->meth->rsa_priv_enc(flen, from, to, rsa, padding));
+
+const char RSA_version[]="RSA" OPENSSL_VERSION_PTEXT;
+
+static const RSA_METHOD *default_RSA_meth=NULL;
+
+RSA *RSA_new(void)
+	{
+	RSA *r=RSA_new_method(NULL);
+
+	return r;
 	}
 
-int RSA_private_decrypt(int flen, const unsigned char *from, unsigned char *to,
-	     RSA *rsa, int padding)
+void RSA_set_default_method(const RSA_METHOD *meth)
 	{
-	return(rsa->meth->rsa_priv_dec(flen, from, to, rsa, padding));
+	default_RSA_meth = meth;
 	}
 
-int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
-	     RSA *rsa, int padding)
+const RSA_METHOD *RSA_get_default_method(void)
 	{
-#ifdef OPENSSL_FIPS
-	if(FIPS_mode() && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW))
+	if (default_RSA_meth == NULL)
 		{
-		RSAerr(RSA_F_RSA_PUBLIC_DECRYPT, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
-		return 0;
-		}
+#ifdef OPENSSL_FIPS
+		if (FIPS_mode())
+			return FIPS_rsa_pkcs1_ssleay();
+		else
+			return RSA_PKCS1_SSLeay();
+#else
+#ifdef RSA_NULL
+		default_RSA_meth=RSA_null_method();
+#else
+		default_RSA_meth=RSA_PKCS1_SSLeay();
+#endif
 #endif
-	return(rsa->meth->rsa_pub_dec(flen, from, to, rsa, padding));
+		}
+
+	return default_RSA_meth;
 	}
 
-int RSA_size(const RSA *r)
+const RSA_METHOD *RSA_get_method(const RSA *rsa)
 	{
-	return(BN_num_bytes(r->n));
+	return rsa->meth;
 	}
 
-void RSA_blinding_off(RSA *rsa)
+int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
 	{
-	if (rsa->blinding != NULL)
+	/* NB: The caller is specifically setting a method, so it's not up to us
+	 * to deal with which ENGINE it comes from. */
+	const RSA_METHOD *mtmp;
+	mtmp = rsa->meth;
+	if (mtmp->finish) mtmp->finish(rsa);
+#ifndef OPENSSL_NO_ENGINE
+	if (rsa->engine)
 		{
-		BN_BLINDING_free(rsa->blinding);
-		rsa->blinding=NULL;
+		ENGINE_finish(rsa->engine);
+		rsa->engine = NULL;
 		}
-	rsa->flags &= ~RSA_FLAG_BLINDING;
-	rsa->flags |= RSA_FLAG_NO_BLINDING;
+#endif
+	rsa->meth = meth;
+	if (meth->init) meth->init(rsa);
+	return 1;
 	}
 
-int RSA_blinding_on(RSA *rsa, BN_CTX *ctx)
+RSA *RSA_new_method(ENGINE *engine)
 	{
-	int ret=0;
-
-	if (rsa->blinding != NULL)
-		RSA_blinding_off(rsa);
+	RSA *ret;
 
-	rsa->blinding = RSA_setup_blinding(rsa, ctx);
-	if (rsa->blinding == NULL)
-		goto err;
-
-	rsa->flags |= RSA_FLAG_BLINDING;
-	rsa->flags &= ~RSA_FLAG_NO_BLINDING;
-	ret=1;
-err:
-	return(ret);
-	}
-
-static BIGNUM *rsa_get_public_exp(const BIGNUM *d, const BIGNUM *p,
-	const BIGNUM *q, BN_CTX *ctx)
-{
-	BIGNUM *ret = NULL, *r0, *r1, *r2;
-
-	if (d == NULL || p == NULL || q == NULL)
+	ret=(RSA *)OPENSSL_malloc(sizeof(RSA));
+	if (ret == NULL)
+		{
+		RSAerr(RSA_F_RSA_NEW_METHOD,ERR_R_MALLOC_FAILURE);
 		return NULL;
+		}
 
-	BN_CTX_start(ctx);
-	r0 = BN_CTX_get(ctx);
-	r1 = BN_CTX_get(ctx);
-	r2 = BN_CTX_get(ctx);
-	if (r2 == NULL)
-		goto err;
-
-	if (!BN_sub(r1, p, BN_value_one())) goto err;
-	if (!BN_sub(r2, q, BN_value_one())) goto err;
-	if (!BN_mul(r0, r1, r2, ctx)) goto err;
-
-	ret = BN_mod_inverse(NULL, d, r0, ctx);
-err:
-	BN_CTX_end(ctx);
-	return ret;
-}
-
-BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
-{
-	BIGNUM local_n;
-	BIGNUM *e,*n;
-	BN_CTX *ctx;
-	BN_BLINDING *ret = NULL;
-
-	if (in_ctx == NULL)
+	ret->meth = RSA_get_default_method();
+#ifndef OPENSSL_NO_ENGINE
+	if (engine)
 		{
-		if ((ctx = BN_CTX_new()) == NULL) return 0;
+		if (!ENGINE_init(engine))
+			{
+			RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+			OPENSSL_free(ret);
+			return NULL;
+			}
+		ret->engine = engine;
 		}
 	else
-		ctx = in_ctx;
+		ret->engine = ENGINE_get_default_RSA();
+	if(ret->engine)
+		{
+		ret->meth = ENGINE_get_RSA(ret->engine);
+		if(!ret->meth)
+			{
+			RSAerr(RSA_F_RSA_NEW_METHOD,
+				ERR_R_ENGINE_LIB);
+			ENGINE_finish(ret->engine);
+			OPENSSL_free(ret);
+			return NULL;
+			}
+		}
+#endif
 
-	BN_CTX_start(ctx);
-	e  = BN_CTX_get(ctx);
-	if (e == NULL)
+	ret->pad=0;
+	ret->version=0;
+	ret->n=NULL;
+	ret->e=NULL;
+	ret->d=NULL;
+	ret->p=NULL;
+	ret->q=NULL;
+	ret->dmp1=NULL;
+	ret->dmq1=NULL;
+	ret->iqmp=NULL;
+	ret->references=1;
+	ret->_method_mod_n=NULL;
+	ret->_method_mod_p=NULL;
+	ret->_method_mod_q=NULL;
+	ret->blinding=NULL;
+	ret->mt_blinding=NULL;
+	ret->bignum_data=NULL;
+	ret->flags=ret->meth->flags & ~RSA_FLAG_NON_FIPS_ALLOW;
+	if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data))
 		{
-		RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
-		goto err;
+#ifndef OPENSSL_NO_ENGINE
+	if (ret->engine)
+		ENGINE_finish(ret->engine);
+#endif
+		OPENSSL_free(ret);
+		return(NULL);
 		}
 
-	if (rsa->e == NULL)
+	if ((ret->meth->init != NULL) && !ret->meth->init(ret))
 		{
-		e = rsa_get_public_exp(rsa->d, rsa->p, rsa->q, ctx);
-		if (e == NULL)
-			{
-			RSAerr(RSA_F_RSA_SETUP_BLINDING, RSA_R_NO_PUBLIC_EXPONENT);
-			goto err;
-			}
+#ifndef OPENSSL_NO_ENGINE
+		if (ret->engine)
+			ENGINE_finish(ret->engine);
+#endif
+		CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, ret, &ret->ex_data);
+		OPENSSL_free(ret);
+		ret=NULL;
 		}
-	else
-		e = rsa->e;
+	return(ret);
+	}
 
-	
-	if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL)
+void RSA_free(RSA *r)
+	{
+	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)
 		{
-		/* if PRNG is not properly seeded, resort to secret
-		 * exponent as unpredictable seed */
-		RAND_add(rsa->d->d, rsa->d->dmax * sizeof rsa->d->d[0], 0.0);
+		fprintf(stderr,"RSA_free, bad reference count\n");
+		abort();
 		}
+#endif
+
+	if (r->meth->finish)
+		r->meth->finish(r);
+#ifndef OPENSSL_NO_ENGINE
+	if (r->engine)
+		ENGINE_finish(r->engine);
+#endif
 
-	if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME))
+	CRYPTO_free_ex_data(CRYPTO_EX_INDEX_RSA, r, &r->ex_data);
+
+	if (r->n != NULL) BN_clear_free(r->n);
+	if (r->e != NULL) BN_clear_free(r->e);
+	if (r->d != NULL) BN_clear_free(r->d);
+	if (r->p != NULL) BN_clear_free(r->p);
+	if (r->q != NULL) BN_clear_free(r->q);
+	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);
+	if (r->blinding != NULL) BN_BLINDING_free(r->blinding);
+	if (r->mt_blinding != NULL) BN_BLINDING_free(r->mt_blinding);
+	if (r->bignum_data != NULL) OPENSSL_free_locked(r->bignum_data);
+	OPENSSL_free(r);
+	}
+
+int RSA_up_ref(RSA *r)
+	{
+	int i = CRYPTO_add(&r->references, 1, CRYPTO_LOCK_RSA);
+#ifdef REF_PRINT
+	REF_PRINT("RSA",r);
+#endif
+#ifdef REF_CHECK
+	if (i < 2)
 		{
-		/* Set BN_FLG_CONSTTIME flag */
-		n = &local_n;
-		BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);
+		fprintf(stderr, "RSA_up_ref, bad reference count\n");
+		abort();
 		}
-	else
-		n = rsa->n;
+#endif
+	return ((i > 1) ? 1 : 0);
+	}
 
-	ret = BN_BLINDING_create_param(NULL, e, n, ctx,
-			rsa->meth->bn_mod_exp, rsa->_method_mod_n);
-	if (ret == NULL)
+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)
+        {
+	return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_RSA, 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_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_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
-		goto err;
+		RSAerr(RSA_F_RSA_MEMORY_LOCK,ERR_R_MALLOC_FAILURE);
+		return(0);
 		}
-	BN_BLINDING_set_thread_id(ret, CRYPTO_thread_id());
-err:
-	BN_CTX_end(ctx);
-	if (in_ctx == NULL)
-		BN_CTX_free(ctx);
-	if(rsa->e == NULL)
-		BN_free(e);
-
-	return ret;
-}
+	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);
+	}