1 files changed, 195 insertions, 0 deletions

diff --git a/src/lib/libcrypto/ec/ec_print.c b/src/lib/libcrypto/ec/ec_print.c
new file mode 100644
index 0000000000..f7c8a303ac
--- /dev/null
+++ b/src/lib/libcrypto/ec/ec_print.c
@@ -0,0 +1,195 @@
+/* crypto/ec/ec_print.c */
+/* ====================================================================
+ * Copyright (c) 1998-2002 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 <openssl/crypto.h>
+#include "ec_lcl.h"
+
+BIGNUM *EC_POINT_point2bn(const EC_GROUP *group, 
+                          const EC_POINT *point, 
+                          point_conversion_form_t form,
+                          BIGNUM *ret,
+                          BN_CTX *ctx)
+        {
+        size_t        buf_len=0;
+        unsigned char *buf;
+
+        buf_len = EC_POINT_point2oct(group, point, form,
+                                     NULL, 0, ctx);
+        if (buf_len == 0)
+                return NULL;
+
+        if ((buf = OPENSSL_malloc(buf_len)) == NULL)
+                return NULL;
+
+        if (!EC_POINT_point2oct(group, point, form, buf, buf_len, ctx))
+                {
+                OPENSSL_free(buf);
+                return NULL;
+                }
+
+        ret = BN_bin2bn(buf, buf_len, ret);
+
+        OPENSSL_free(buf);
+
+        return ret;
+}
+
+EC_POINT *EC_POINT_bn2point(const EC_GROUP *group,
+                            const BIGNUM *bn,
+                            EC_POINT *point, 
+                            BN_CTX *ctx)
+        {
+        size_t        buf_len=0;
+        unsigned char *buf;
+        EC_POINT      *ret;
+
+        if ((buf_len = BN_num_bytes(bn)) == 0) return NULL;
+        buf = OPENSSL_malloc(buf_len);
+        if (buf == NULL)
+                return NULL;
+
+        if (!BN_bn2bin(bn, buf)) 
+                {
+                OPENSSL_free(buf);
+                return NULL;
+                }
+
+        if (point == NULL)
+                {
+                if ((ret = EC_POINT_new(group)) == NULL)
+                        {
+                        OPENSSL_free(buf);
+                        return NULL;
+                        }
+                }
+        else
+                ret = point;
+
+        if (!EC_POINT_oct2point(group, ret, buf, buf_len, ctx))
+                {
+                if (point == NULL)
+                        EC_POINT_clear_free(ret);
+                OPENSSL_free(buf);
+                return NULL;
+                }
+
+        OPENSSL_free(buf);
+        return ret;
+        }
+
+static const char *HEX_DIGITS = "0123456789ABCDEF";
+
+/* the return value must be freed (using OPENSSL_free()) */
+char *EC_POINT_point2hex(const EC_GROUP *group,
+                         const EC_POINT *point,
+                         point_conversion_form_t form,
+                         BN_CTX *ctx)
+        {
+        char          *ret, *p;
+        size_t        buf_len=0,i;
+        unsigned char *buf, *pbuf;
+
+        buf_len = EC_POINT_point2oct(group, point, form,
+                                     NULL, 0, ctx);
+        if (buf_len == 0)
+                return NULL;
+
+        if ((buf = OPENSSL_malloc(buf_len)) == NULL)
+                return NULL;
+
+        if (!EC_POINT_point2oct(group, point, form, buf, buf_len, ctx))
+                {
+                OPENSSL_free(buf);
+                return NULL;
+                }
+
+        ret = (char *)OPENSSL_malloc(buf_len*2+2);
+        if (ret == NULL)
+                {
+                OPENSSL_free(buf);
+                return NULL;
+                }
+        p = ret;
+        pbuf = buf;
+        for (i=buf_len; i > 0; i--)
+                {
+                        int v = (int) *(pbuf++);
+                        *(p++)=HEX_DIGITS[v>>4];
+                        *(p++)=HEX_DIGITS[v&0x0F];
+                }
+        *p='\0';
+
+        OPENSSL_free(buf);
+
+        return ret;
+        }
+
+EC_POINT *EC_POINT_hex2point(const EC_GROUP *group,
+                             const char *buf,
+                             EC_POINT *point,
+                             BN_CTX *ctx)
+        {
+        EC_POINT *ret=NULL;
+        BIGNUM   *tmp_bn=NULL;
+
+        if (!BN_hex2bn(&tmp_bn, buf))
+                return NULL;
+
+        ret = EC_POINT_bn2point(group, tmp_bn, point, ctx);
+
+        BN_clear_free(tmp_bn);
+
+        return ret;
+        }