Have other crypto/evp files include evp_locl.h

[openssl.git] / crypto / evp / p_verify.c

diff --git a/crypto/evp/p_verify.c b/crypto/evp/p_verify.c
index dcb54f3abb8474a348793347cd83f4a910ff16c8..02c26631f0d8f054a03d3e958683c7623f3594da 100644 (file)
--- a/crypto/evp/p_verify.c
+++ b/crypto/evp/p_verify.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
@@ -57,43 +57,47 @@
  */
 
 #include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
 #include <openssl/evp.h>
 #include <openssl/objects.h>
 #include <openssl/x509.h>
 
-int EVP_VerifyFinal(EVP_MD_CTX *ctx, unsigned char *sigbuf,
-            unsigned int siglen, EVP_PKEY *pkey)
-       {
-       unsigned char m[EVP_MAX_MD_SIZE];
-       unsigned int m_len;
-       int i,ok=0,v;
-       MS_STATIC EVP_MD_CTX tmp_ctx;
-
-       for (i=0; i<4; i++)
-               {
-               v=ctx->digest->required_pkey_type[i];
-               if (v == 0) break;
-               if (pkey->type == v)
-                       {
-                       ok=1;
-                       break;
-                       }
-               }
-       if (!ok)
-               {
-               EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_WRONG_PUBLIC_KEY_TYPE);
-               return(-1);
-               }
-       EVP_MD_CTX_copy(&tmp_ctx,ctx);     
-       EVP_DigestFinal(&tmp_ctx,&(m[0]),&m_len);
-        if (ctx->digest->verify == NULL)
-                {
-               EVPerr(EVP_F_EVP_VERIFYFINAL,EVP_R_NO_VERIFY_FUNCTION_CONFIGURED);
-               return(0);
-               }
+int EVP_VerifyFinal(EVP_MD_CTX *ctx, const unsigned char *sigbuf,
+                    unsigned int siglen, EVP_PKEY *pkey)
+{
+    unsigned char m[EVP_MAX_MD_SIZE];
+    unsigned int m_len = 0;
+    int i = 0;
+    EVP_PKEY_CTX *pkctx = NULL;
 
-       return(ctx->digest->verify(ctx->digest->type,m,m_len,
-               sigbuf,siglen,pkey->pkey.ptr));
-       }
+    if (EVP_MD_CTX_test_flags(ctx, EVP_MD_CTX_FLAG_FINALISE)) {
+        if (!EVP_DigestFinal_ex(ctx, m, &m_len))
+            goto err;
+    } else {
+        int rv = 0;
+        EVP_MD_CTX *tmp_ctx = EVP_MD_CTX_create();
+        if (tmp_ctx == NULL) {
+            EVPerr(EVP_F_EVP_VERIFYFINAL, ERR_R_MALLOC_FAILURE);
+            return 0;
+        }
+        rv = EVP_MD_CTX_copy_ex(tmp_ctx, ctx);
+        if (rv)
+            rv = EVP_DigestFinal_ex(tmp_ctx, m, &m_len);
+        EVP_MD_CTX_destroy(tmp_ctx);
+        if (!rv)
+            return 0;
+    }
 
+    i = -1;
+    pkctx = EVP_PKEY_CTX_new(pkey, NULL);
+    if (pkctx == NULL)
+        goto err;
+    if (EVP_PKEY_verify_init(pkctx) <= 0)
+        goto err;
+    if (EVP_PKEY_CTX_set_signature_md(pkctx, ctx->digest) <= 0)
+        goto err;
+    i = EVP_PKEY_verify(pkctx, sigbuf, siglen, m, m_len);
+ err:
+    EVP_PKEY_CTX_free(pkctx);
+    return i;
+}