Initial keygen support.

1 files changed, 193 insertions, 0 deletions

diff --git a/crypto/evp/pmeth_gn.c b/crypto/evp/pmeth_gn.c
new file mode 100644
index 0000000000..4972d5e96d
--- /dev/null
+++ b/crypto/evp/pmeth_gn.c
@@ -0,0 +1,193 @@
+/* pmeth_gn.c */
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006 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
+ *    licensing@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 <stdio.h>
+#include <stdlib.h>
+#include <openssl/objects.h>
+#include "cryptlib.h"
+#include <openssl/evp.h>
+#include "evp_locl.h"
+
+int EVP_PKEY_paramgen_init(EVP_PKEY_CTX *ctx)
+	{
+	int ret;
+	if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen)
+		{
+		EVPerr(EVP_F_EVP_PKEY_PARAMGEN_INIT,
+			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+		return -2;
+		}
+	ctx->operation = EVP_PKEY_OP_PARAMGEN;
+	if (!ctx->pmeth->paramgen_init)
+		return 1;
+	ret = ctx->pmeth->paramgen_init(ctx);
+	if (ret <= 0)
+		ctx->operation = EVP_PKEY_OP_UNDEFINED;
+	return ret;
+	}
+
+int EVP_PKEY_paramgen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
+	{
+	int ret;
+	if (!ctx || !ctx->pmeth || !ctx->pmeth->paramgen)
+		{
+		EVPerr(EVP_F_EVP_PKEY_PARAMGEN,
+			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+		return -2;
+		}
+
+	if (ctx->operation != EVP_PKEY_OP_PARAMGEN)
+		{
+		EVPerr(EVP_F_EVP_PKEY_PARAMGEN, EVP_R_OPERATON_NOT_INITIALIZED);
+		return -1;
+		}
+
+	if (!ppkey)
+		return -1;
+
+	if (!*ppkey)
+		*ppkey = EVP_PKEY_new();
+
+	ret = ctx->pmeth->paramgen(ctx, *ppkey);
+	if (ret <= 0)
+		{
+		EVP_PKEY_free(*ppkey);
+		*ppkey = NULL;
+		}
+	return ret;
+	}
+
+int EVP_PKEY_keygen_init(EVP_PKEY_CTX *ctx)
+	{
+	int ret;
+	if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen)
+		{
+		EVPerr(EVP_F_EVP_PKEY_KEYGEN_INIT,
+			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+		return -2;
+		}
+	ctx->operation = EVP_PKEY_OP_KEYGEN;
+	if (!ctx->pmeth->keygen_init)
+		return 1;
+	ret = ctx->pmeth->keygen_init(ctx);
+	if (ret <= 0)
+		ctx->operation = EVP_PKEY_OP_UNDEFINED;
+	return ret;
+	}
+
+int EVP_PKEY_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY **ppkey)
+	{
+	int ret;
+
+	if (!ctx || !ctx->pmeth || !ctx->pmeth->keygen)
+		{
+		EVPerr(EVP_F_EVP_PKEY_KEYGEN,
+			EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+		return -2;
+		}
+	if (ctx->operation != EVP_PKEY_OP_KEYGEN)
+		{
+		EVPerr(EVP_F_EVP_PKEY_KEYGEN, EVP_R_OPERATON_NOT_INITIALIZED);
+		return -1;
+		}
+
+	if (!ppkey)
+		return -1;
+
+	if (!*ppkey)
+		*ppkey = EVP_PKEY_new();
+
+	ret = ctx->pmeth->keygen(ctx, *ppkey);
+	if (ret <= 0)
+		{
+		EVP_PKEY_free(*ppkey);
+		*ppkey = NULL;
+		}
+	return ret;
+	}
+
+void EVP_PKEY_CTX_set_cb(EVP_PKEY_CTX *ctx, EVP_PKEY_gen_cb *cb)
+	{
+	ctx->pkey_gencb = cb;
+	}
+
+/* "translation callback" to call EVP_PKEY_CTX callbacks using BN_GENCB
+ * style callbacks.
+ */
+
+static int trans_cb(int a, int b, BN_GENCB *gcb)
+	{
+	EVP_PKEY_CTX *ctx = gcb->arg;
+	ctx->keygen_info[0] = a;
+	ctx->keygen_info[1] = b;
+	return ctx->pkey_gencb(ctx);
+	}	
+
+void evp_pkey_set_cb_translate(BN_GENCB *cb, EVP_PKEY_CTX *ctx)
+	{
+	BN_GENCB_set(cb, trans_cb, ctx)
+	}
+
+int EVP_PKEY_CTX_get_keygen_info(EVP_PKEY_CTX *ctx, int idx)
+	{
+	if (idx == -1)
+		return ctx->keygen_info_count; 
+	if (idx < 0 || idx > ctx->keygen_info_count)
+		return 0;
+	return ctx->keygen_info[idx];
+	}