inital commit

1 files changed, 203 insertions, 0 deletions

diff --git a/openssl/crypto/evp/m_sigver.c b/openssl/crypto/evp/m_sigver.c
new file mode 100644
index 0000000..4492d20
--- /dev/null
+++ b/openssl/crypto/evp/m_sigver.c
@@ -0,0 +1,203 @@
+/* m_sigver.c */
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2006.
+ */
+/* ====================================================================
+ * Copyright (c) 2006,2007 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 "cryptlib.h"
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+#include "evp_locl.h"
+
+static int do_sigver_init(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                          const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey,
+                          int ver)
+{
+    if (ctx->pctx == NULL)
+        ctx->pctx = EVP_PKEY_CTX_new(pkey, e);
+    if (ctx->pctx == NULL)
+        return 0;
+
+    if (!(ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)) {
+
+        if (type == NULL) {
+            int def_nid;
+            if (EVP_PKEY_get_default_digest_nid(pkey, &def_nid) > 0)
+                type = EVP_get_digestbynid(def_nid);
+        }
+
+        if (type == NULL) {
+            EVPerr(EVP_F_DO_SIGVER_INIT, EVP_R_NO_DEFAULT_DIGEST);
+            return 0;
+        }
+    }
+
+    if (ver) {
+        if (ctx->pctx->pmeth->verifyctx_init) {
+            if (ctx->pctx->pmeth->verifyctx_init(ctx->pctx, ctx) <= 0)
+                return 0;
+            ctx->pctx->operation = EVP_PKEY_OP_VERIFYCTX;
+        } else if (EVP_PKEY_verify_init(ctx->pctx) <= 0)
+            return 0;
+    } else {
+        if (ctx->pctx->pmeth->signctx_init) {
+            if (ctx->pctx->pmeth->signctx_init(ctx->pctx, ctx) <= 0)
+                return 0;
+            ctx->pctx->operation = EVP_PKEY_OP_SIGNCTX;
+        } else if (EVP_PKEY_sign_init(ctx->pctx) <= 0)
+            return 0;
+    }
+    if (EVP_PKEY_CTX_set_signature_md(ctx->pctx, type) <= 0)
+        return 0;
+    if (pctx)
+        *pctx = ctx->pctx;
+    if (ctx->pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM)
+        return 1;
+    if (!EVP_DigestInit_ex(ctx, type, e))
+        return 0;
+    return 1;
+}
+
+int EVP_DigestSignInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                       const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
+{
+    return do_sigver_init(ctx, pctx, type, e, pkey, 0);
+}
+
+int EVP_DigestVerifyInit(EVP_MD_CTX *ctx, EVP_PKEY_CTX **pctx,
+                         const EVP_MD *type, ENGINE *e, EVP_PKEY *pkey)
+{
+    return do_sigver_init(ctx, pctx, type, e, pkey, 1);
+}
+
+int EVP_DigestSignFinal(EVP_MD_CTX *ctx, unsigned char *sigret,
+                        size_t *siglen)
+{
+    int sctx, r = 0;
+    EVP_PKEY_CTX *pctx = ctx->pctx;
+    if (pctx->pmeth->flags & EVP_PKEY_FLAG_SIGCTX_CUSTOM) {
+        EVP_PKEY_CTX *dctx;
+        if (!sigret)
+            return pctx->pmeth->signctx(pctx, sigret, siglen, ctx);
+        dctx = EVP_PKEY_CTX_dup(ctx->pctx);
+        if (!dctx)
+            return 0;
+        r = dctx->pmeth->signctx(dctx, sigret, siglen, ctx);
+        EVP_PKEY_CTX_free(dctx);
+        return r;
+    }
+    if (pctx->pmeth->signctx)
+        sctx = 1;
+    else
+        sctx = 0;
+    if (sigret) {
+        EVP_MD_CTX tmp_ctx;
+        unsigned char md[EVP_MAX_MD_SIZE];
+        unsigned int mdlen;
+        EVP_MD_CTX_init(&tmp_ctx);
+        if (!EVP_MD_CTX_copy_ex(&tmp_ctx, ctx))
+            return 0;
+        if (sctx)
+            r = tmp_ctx.pctx->pmeth->signctx(tmp_ctx.pctx,
+                                             sigret, siglen, &tmp_ctx);
+        else
+            r = EVP_DigestFinal_ex(&tmp_ctx, md, &mdlen);
+        EVP_MD_CTX_cleanup(&tmp_ctx);
+        if (sctx || !r)
+            return r;
+        if (EVP_PKEY_sign(ctx->pctx, sigret, siglen, md, mdlen) <= 0)
+            return 0;
+    } else {
+        if (sctx) {
+            if (pctx->pmeth->signctx(pctx, sigret, siglen, ctx) <= 0)
+                return 0;
+        } else {
+            int s = EVP_MD_size(ctx->digest);
+            if (s < 0 || EVP_PKEY_sign(pctx, sigret, siglen, NULL, s) <= 0)
+                return 0;
+        }
+    }
+    return 1;
+}
+
+int EVP_DigestVerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sig,
+                          size_t siglen)
+{
+    EVP_MD_CTX tmp_ctx;
+    unsigned char md[EVP_MAX_MD_SIZE];
+    int r;
+    unsigned int mdlen;
+    int vctx;
+
+    if (ctx->pctx->pmeth->verifyctx)
+        vctx = 1;
+    else
+        vctx = 0;
+    EVP_MD_CTX_init(&tmp_ctx);
+    if (!EVP_MD_CTX_copy_ex(&tmp_ctx, ctx))
+        return -1;
+    if (vctx) {
+        r = tmp_ctx.pctx->pmeth->verifyctx(tmp_ctx.pctx,
+                                           sig, siglen, &tmp_ctx);
+    } else
+        r = EVP_DigestFinal_ex(&tmp_ctx, md, &mdlen);
+    EVP_MD_CTX_cleanup(&tmp_ctx);
+    if (vctx || !r)
+        return r;
+    return EVP_PKEY_verify(ctx->pctx, sig, siglen, md, mdlen);
+}