ec_err.c ec_curve.c ec_check.c ec_print.c ec_asn1.c ec_key.c\
ec2_smpl.c ec2_mult.c ec_ameth.c ec_pmeth.c eck_prn.c \
ecp_nistp224.c ecp_nistp256.c ecp_nistp521.c ecp_nistputil.c \
- ecp_oct.c ec2_oct.c ec_oct.c ec_kmeth.c ecdh_kdf.c
+ ecp_oct.c ec2_oct.c ec_oct.c ec_kmeth.c ecdh_ossl.c ecdh_kdf.c
LIBOBJ= ec_lib.o ecp_smpl.o ecp_mont.o ecp_nist.o ec_cvt.o ec_mult.o\
ec_err.o ec_curve.o ec_check.o ec_print.o ec_asn1.o ec_key.o\
ec2_smpl.o ec2_mult.o ec_ameth.o ec_pmeth.o eck_prn.o \
ecp_nistp224.o ecp_nistp256.o ecp_nistp521.o ecp_nistputil.o \
- ecp_oct.o ec2_oct.o ec_oct.o ec_kmeth.o ecdh_kdf.o $(EC_ASM)
+ ecp_oct.o ec2_oct.o ec_oct.o ec_kmeth.o ecdh_ossl.o ecdh_kdf.o \
+ $(EC_ASM)
SRC= $(LIBSRC)
--- /dev/null
+/* crypto/ecdh/ech_ossl.c */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ *
+ * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
+ * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
+ * to the OpenSSL project.
+ *
+ * The ECC Code is licensed pursuant to the OpenSSL open source
+ * license provided below.
+ *
+ * The ECDH software is originally written by Douglas Stebila of
+ * Sun Microsystems Laboratories.
+ *
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT 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.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <string.h>
+#include <limits.h>
+
+#include "internal/cryptlib.h"
+
+#include "ech_locl.h"
+#include <openssl/err.h>
+#include <openssl/sha.h>
+#include <openssl/obj_mac.h>
+#include <openssl/bn.h>
+
+static int ecdh_compute_key(void *out, size_t len, const EC_POINT *pub_key,
+ EC_KEY *ecdh,
+ void *(*KDF) (const void *in, size_t inlen,
+ void *out, size_t *outlen));
+
+static ECDH_METHOD openssl_ecdh_meth = {
+ "OpenSSL ECDH method",
+ ecdh_compute_key,
+ ECDH_FLAG_FIPS_METHOD, /* flags */
+ NULL /* app_data */
+};
+
+const ECDH_METHOD *ECDH_OpenSSL(void)
+{
+ return &openssl_ecdh_meth;
+}
+
+/*-
+ * This implementation is based on the following primitives in the IEEE 1363 standard:
+ * - ECKAS-DH1
+ * - ECSVDP-DH
+ * Finally an optional KDF is applied.
+ */
+static int ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
+ EC_KEY *ecdh,
+ void *(*KDF) (const void *in, size_t inlen,
+ void *out, size_t *outlen))
+{
+ BN_CTX *ctx;
+ EC_POINT *tmp = NULL;
+ BIGNUM *x = NULL, *y = NULL;
+ const BIGNUM *priv_key;
+ const EC_GROUP *group;
+ int ret = -1;
+ size_t buflen, len;
+ unsigned char *buf = NULL;
+
+ if (outlen > INT_MAX) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE); /* sort of,
+ * anyway */
+ return -1;
+ }
+
+ if ((ctx = BN_CTX_new()) == NULL)
+ goto err;
+ BN_CTX_start(ctx);
+ x = BN_CTX_get(ctx);
+ y = BN_CTX_get(ctx);
+
+ priv_key = EC_KEY_get0_private_key(ecdh);
+ if (priv_key == NULL) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_NO_PRIVATE_VALUE);
+ goto err;
+ }
+
+ group = EC_KEY_get0_group(ecdh);
+
+ if (EC_KEY_get_flags(ecdh) & EC_FLAG_COFACTOR_ECDH) {
+ if (!EC_GROUP_get_cofactor(group, x, ctx) ||
+ !BN_mul(x, x, priv_key, ctx)) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ priv_key = x;
+ }
+
+ if ((tmp = EC_POINT_new(group)) == NULL) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (!EC_POINT_mul(group, tmp, NULL, pub_key, priv_key, ctx)) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_POINT_ARITHMETIC_FAILURE);
+ goto err;
+ }
+
+ if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==
+ NID_X9_62_prime_field) {
+ if (!EC_POINT_get_affine_coordinates_GFp(group, tmp, x, y, ctx)) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_POINT_ARITHMETIC_FAILURE);
+ goto err;
+ }
+ }
+#ifndef OPENSSL_NO_EC2M
+ else {
+ if (!EC_POINT_get_affine_coordinates_GF2m(group, tmp, x, y, ctx)) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_POINT_ARITHMETIC_FAILURE);
+ goto err;
+ }
+ }
+#endif
+
+ buflen = (EC_GROUP_get_degree(group) + 7) / 8;
+ len = BN_num_bytes(x);
+ if (len > buflen) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+ if ((buf = OPENSSL_malloc(buflen)) == NULL) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ memset(buf, 0, buflen - len);
+ if (len != (size_t)BN_bn2bin(x, buf + buflen - len)) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_BN_LIB);
+ goto err;
+ }
+
+ if (KDF != 0) {
+ if (KDF(buf, buflen, out, &outlen) == NULL) {
+ ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_KDF_FAILED);
+ goto err;
+ }
+ ret = outlen;
+ } else {
+ /* no KDF, just copy as much as we can */
+ if (outlen > buflen)
+ outlen = buflen;
+ memcpy(out, buf, outlen);
+ ret = outlen;
+ }
+
+ err:
+ EC_POINT_free(tmp);
+ if (ctx)
+ BN_CTX_end(ctx);
+ BN_CTX_free(ctx);
+ OPENSSL_free(buf);
+ return (ret);
+}
GENERAL=Makefile
LIB=$(TOP)/libcrypto.a
-LIBSRC= ech_lib.c ech_ossl.c ech_key.c ech_err.c
+LIBSRC= ech_lib.c ech_key.c ech_err.c
-LIBOBJ= ech_lib.o ech_ossl.o ech_key.o ech_err.o
+LIBOBJ= ech_lib.o ech_key.o ech_err.o
SRC= $(LIBSRC)
ech_lib.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
ech_lib.o: ../../include/openssl/x509.h ../../include/openssl/x509_vfy.h
ech_lib.o: ech_lib.c ech_locl.h
-ech_ossl.o: ../../e_os.h ../../include/openssl/asn1.h
-ech_ossl.o: ../../include/openssl/bio.h ../../include/openssl/bn.h
-ech_ossl.o: ../../include/openssl/buffer.h ../../include/openssl/crypto.h
-ech_ossl.o: ../../include/openssl/e_os2.h ../../include/openssl/ec.h
-ech_ossl.o: ../../include/openssl/ecdh.h ../../include/openssl/err.h
-ech_ossl.o: ../../include/openssl/lhash.h ../../include/openssl/obj_mac.h
-ech_ossl.o: ../../include/openssl/opensslconf.h
-ech_ossl.o: ../../include/openssl/opensslv.h ../../include/openssl/ossl_typ.h
-ech_ossl.o: ../../include/openssl/safestack.h ../../include/openssl/sha.h
-ech_ossl.o: ../../include/openssl/stack.h ../../include/openssl/symhacks.h
-ech_ossl.o: ../include/internal/cryptlib.h ech_locl.h ech_ossl.c
+++ /dev/null
-/* crypto/ecdh/ech_ossl.c */
-/* ====================================================================
- * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
- *
- * The Elliptic Curve Public-Key Crypto Library (ECC Code) included
- * herein is developed by SUN MICROSYSTEMS, INC., and is contributed
- * to the OpenSSL project.
- *
- * The ECC Code is licensed pursuant to the OpenSSL open source
- * license provided below.
- *
- * The ECDH software is originally written by Douglas Stebila of
- * Sun Microsystems Laboratories.
- *
- */
-/* ====================================================================
- * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * openssl-core@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT 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.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
-
-#include <string.h>
-#include <limits.h>
-
-#include "internal/cryptlib.h"
-
-#include "ech_locl.h"
-#include <openssl/err.h>
-#include <openssl/sha.h>
-#include <openssl/obj_mac.h>
-#include <openssl/bn.h>
-
-static int ecdh_compute_key(void *out, size_t len, const EC_POINT *pub_key,
- EC_KEY *ecdh,
- void *(*KDF) (const void *in, size_t inlen,
- void *out, size_t *outlen));
-
-static ECDH_METHOD openssl_ecdh_meth = {
- "OpenSSL ECDH method",
- ecdh_compute_key,
- ECDH_FLAG_FIPS_METHOD, /* flags */
- NULL /* app_data */
-};
-
-const ECDH_METHOD *ECDH_OpenSSL(void)
-{
- return &openssl_ecdh_meth;
-}
-
-/*-
- * This implementation is based on the following primitives in the IEEE 1363 standard:
- * - ECKAS-DH1
- * - ECSVDP-DH
- * Finally an optional KDF is applied.
- */
-static int ecdh_compute_key(void *out, size_t outlen, const EC_POINT *pub_key,
- EC_KEY *ecdh,
- void *(*KDF) (const void *in, size_t inlen,
- void *out, size_t *outlen))
-{
- BN_CTX *ctx;
- EC_POINT *tmp = NULL;
- BIGNUM *x = NULL, *y = NULL;
- const BIGNUM *priv_key;
- const EC_GROUP *group;
- int ret = -1;
- size_t buflen, len;
- unsigned char *buf = NULL;
-
- if (outlen > INT_MAX) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE); /* sort of,
- * anyway */
- return -1;
- }
-
- if ((ctx = BN_CTX_new()) == NULL)
- goto err;
- BN_CTX_start(ctx);
- x = BN_CTX_get(ctx);
- y = BN_CTX_get(ctx);
-
- priv_key = EC_KEY_get0_private_key(ecdh);
- if (priv_key == NULL) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_NO_PRIVATE_VALUE);
- goto err;
- }
-
- group = EC_KEY_get0_group(ecdh);
-
- if (EC_KEY_get_flags(ecdh) & EC_FLAG_COFACTOR_ECDH) {
- if (!EC_GROUP_get_cofactor(group, x, ctx) ||
- !BN_mul(x, x, priv_key, ctx)) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
- priv_key = x;
- }
-
- if ((tmp = EC_POINT_new(group)) == NULL) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- if (!EC_POINT_mul(group, tmp, NULL, pub_key, priv_key, ctx)) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_POINT_ARITHMETIC_FAILURE);
- goto err;
- }
-
- if (EC_METHOD_get_field_type(EC_GROUP_method_of(group)) ==
- NID_X9_62_prime_field) {
- if (!EC_POINT_get_affine_coordinates_GFp(group, tmp, x, y, ctx)) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_POINT_ARITHMETIC_FAILURE);
- goto err;
- }
- }
-#ifndef OPENSSL_NO_EC2M
- else {
- if (!EC_POINT_get_affine_coordinates_GF2m(group, tmp, x, y, ctx)) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_POINT_ARITHMETIC_FAILURE);
- goto err;
- }
- }
-#endif
-
- buflen = (EC_GROUP_get_degree(group) + 7) / 8;
- len = BN_num_bytes(x);
- if (len > buflen) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_INTERNAL_ERROR);
- goto err;
- }
- if ((buf = OPENSSL_malloc(buflen)) == NULL) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
- memset(buf, 0, buflen - len);
- if (len != (size_t)BN_bn2bin(x, buf + buflen - len)) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ERR_R_BN_LIB);
- goto err;
- }
-
- if (KDF != 0) {
- if (KDF(buf, buflen, out, &outlen) == NULL) {
- ECDHerr(ECDH_F_ECDH_COMPUTE_KEY, ECDH_R_KDF_FAILED);
- goto err;
- }
- ret = outlen;
- } else {
- /* no KDF, just copy as much as we can */
- if (outlen > buflen)
- outlen = buflen;
- memcpy(out, buf, outlen);
- ret = outlen;
- }
-
- err:
- EC_POINT_free(tmp);
- if (ctx)
- BN_CTX_end(ctx);
- BN_CTX_free(ctx);
- OPENSSL_free(buf);
- return (ret);
-}
projects / oweals / openssl.git / commitdiff