Import upstream version 0.9+1465500757.14a5905

1 files changed, 265 insertions, 163 deletions

diff --git a/Cryptlib/OpenSSL/crypto/rsa/rsa_lib.c b/Cryptlib/OpenSSL/crypto/rsa/rsa_lib.c
index 5714841f..a6805deb 100644
--- a/Cryptlib/OpenSSL/crypto/rsa/rsa_lib.c
+++ b/Cryptlib/OpenSSL/crypto/rsa/rsa_lib.c
@@ -5,21 +5,21 @@
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
- * 
+ *
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
  * apply to all code found in this distribution, be it the RC4, RSA,
  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
  * included with this distribution is covered by the same copyright terms
  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
- * 
+ *
  * Copyright remains Eric Young's, and as such any Copyright notices in
  * the code are not to be removed.
  * If this package is used in a product, Eric Young should be given attribution
  * as the author of the parts of the library used.
  * This can be in the form of a textual message at program startup or
  * in documentation (online or textual) provided with the package.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
@@ -34,10 +34,10 @@
  *     Eric Young (eay@cryptsoft.com)"
  *    The word 'cryptographic' can be left out if the rouines from the library
  *    being used are not cryptographic related :-).
- * 4. If you include any Windows specific code (or a derivative thereof) from 
+ * 4. If you include any Windows specific code (or a derivative thereof) from
  *    the apps directory (application code) you must include an acknowledgement:
  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
@@ -49,7 +49,7 @@
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
- * 
+ *
  * The licence and distribution terms for any publically available version or
  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  * copied and put under another distribution licence
@@ -64,171 +64,273 @@
 #include <openssl/rsa.h>
 #include <openssl/rand.h>
 #ifndef OPENSSL_NO_ENGINE
-#include <openssl/engine.h>
+# 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));
-	}
-
-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));
-	}
-
-int RSA_public_decrypt(int flen, const unsigned char *from, unsigned char *to,
-	     RSA *rsa, int 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;
+}
+
+void RSA_set_default_method(const RSA_METHOD *meth)
+{
+    default_RSA_meth = meth;
+}
+
+const RSA_METHOD *RSA_get_default_method(void)
+{
+    if (default_RSA_meth == NULL) {
 #ifdef OPENSSL_FIPS
-	if(FIPS_mode() && !(rsa->flags & RSA_FLAG_NON_FIPS_ALLOW))
-		{
-		RSAerr(RSA_F_RSA_PUBLIC_DECRYPT, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
-		return 0;
-		}
+        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));
-	}
-
-int RSA_size(const RSA *r)
-	{
-	return(BN_num_bytes(r->n));
-	}
-
-void RSA_blinding_off(RSA *rsa)
-	{
-	if (rsa->blinding != NULL)
-		{
-		BN_BLINDING_free(rsa->blinding);
-		rsa->blinding=NULL;
-		}
-	rsa->flags &= ~RSA_FLAG_BLINDING;
-	rsa->flags |= RSA_FLAG_NO_BLINDING;
-	}
-
-int RSA_blinding_on(RSA *rsa, BN_CTX *ctx)
-	{
-	int ret=0;
-
-	if (rsa->blinding != NULL)
-		RSA_blinding_off(rsa);
-
-	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)
+    }
+
+    return default_RSA_meth;
+}
+
+const RSA_METHOD *RSA_get_method(const RSA *rsa)
 {
-	BIGNUM *ret = NULL, *r0, *r1, *r2;
-
-	if (d == NULL || p == NULL || q == NULL)
-		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;
+    return rsa->meth;
 }
 
-BN_BLINDING *RSA_setup_blinding(RSA *rsa, BN_CTX *in_ctx)
+int RSA_set_method(RSA *rsa, const RSA_METHOD *meth)
 {
-	BIGNUM local_n;
-	BIGNUM *e,*n;
-	BN_CTX *ctx;
-	BN_BLINDING *ret = NULL;
-
-	if (in_ctx == NULL)
-		{
-		if ((ctx = BN_CTX_new()) == NULL) return 0;
-		}
-	else
-		ctx = in_ctx;
-
-	BN_CTX_start(ctx);
-	e  = BN_CTX_get(ctx);
-	if (e == NULL)
-		{
-		RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_MALLOC_FAILURE);
-		goto err;
-		}
-
-	if (rsa->e == NULL)
-		{
-		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;
-			}
-		}
-	else
-		e = rsa->e;
-
-	
-	if ((RAND_status() == 0) && rsa->d != NULL && rsa->d->d != NULL)
-		{
-		/* 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);
-		}
-
-	if (!(rsa->flags & RSA_FLAG_NO_CONSTTIME))
-		{
-		/* Set BN_FLG_CONSTTIME flag */
-		n = &local_n;
-		BN_with_flags(n, rsa->n, BN_FLG_CONSTTIME);
-		}
-	else
-		n = rsa->n;
-
-	ret = BN_BLINDING_create_param(NULL, e, n, ctx,
-			rsa->meth->bn_mod_exp, rsa->_method_mod_n);
-	if (ret == NULL)
-		{
-		RSAerr(RSA_F_RSA_SETUP_BLINDING, ERR_R_BN_LIB);
-		goto err;
-		}
-	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;
+    /*
+     * 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) {
+        ENGINE_finish(rsa->engine);
+        rsa->engine = NULL;
+    }
+#endif
+    rsa->meth = meth;
+    if (meth->init)
+        meth->init(rsa);
+    return 1;
+}
+
+RSA *RSA_new_method(ENGINE *engine)
+{
+    RSA *ret;
+
+    ret = (RSA *)OPENSSL_malloc(sizeof(RSA));
+    if (ret == NULL) {
+        RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_MALLOC_FAILURE);
+        return NULL;
+    }
+
+    ret->meth = RSA_get_default_method();
+#ifndef OPENSSL_NO_ENGINE
+    if (engine) {
+        if (!ENGINE_init(engine)) {
+            RSAerr(RSA_F_RSA_NEW_METHOD, ERR_R_ENGINE_LIB);
+            OPENSSL_free(ret);
+            return NULL;
+        }
+        ret->engine = engine;
+    } else
+        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
+
+    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)) {
+#ifndef OPENSSL_NO_ENGINE
+        if (ret->engine)
+            ENGINE_finish(ret->engine);
+#endif
+        OPENSSL_free(ret);
+        return (NULL);
+    }
+
+    if ((ret->meth->init != NULL) && !ret->meth->init(ret)) {
+#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;
+    }
+    return (ret);
+}
+
+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) {
+        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
+
+    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) {
+        fprintf(stderr, "RSA_up_ref, bad reference count\n");
+        abort();
+    }
+#endif
+    return ((i > 1) ? 1 : 0);
+}
+
+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_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);
 }