1 files changed, 181 insertions, 0 deletions

diff --git a/src/lib/libcrypto/asn1/a_verify.c b/src/lib/libcrypto/asn1/a_verify.c
new file mode 100644
index 0000000000..fdce6e4380
--- /dev/null
+++ b/src/lib/libcrypto/asn1/a_verify.c
@@ -0,0 +1,181 @@
+/* crypto/asn1/a_verify.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * 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:
+ * 1. Redistributions of source code must retain the 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     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 
+ *    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
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR 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.
+ * 
+ * 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
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <time.h>
+
+#include "cryptlib.h"
+
+#ifndef NO_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+
+#include <openssl/bn.h>
+#include <openssl/x509.h>
+#include <openssl/objects.h>
+#include <openssl/buffer.h>
+#include <openssl/evp.h>
+
+#ifndef NO_ASN1_OLD
+
+int ASN1_verify(i2d_of_void *i2d, X509_ALGOR *a, ASN1_BIT_STRING *signature,
+                char *data, EVP_PKEY *pkey)
+        {
+        EVP_MD_CTX ctx;
+        const EVP_MD *type;
+        unsigned char *p,*buf_in=NULL;
+        int ret= -1,i,inl;
+
+        EVP_MD_CTX_init(&ctx);
+        i=OBJ_obj2nid(a->algorithm);
+        type=EVP_get_digestbyname(OBJ_nid2sn(i));
+        if (type == NULL)
+                {
+                ASN1err(ASN1_F_ASN1_VERIFY,ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+                goto err;
+                }
+        
+        inl=i2d(data,NULL);
+        buf_in=OPENSSL_malloc((unsigned int)inl);
+        if (buf_in == NULL)
+                {
+                ASN1err(ASN1_F_ASN1_VERIFY,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+        p=buf_in;
+
+        i2d(data,&p);
+        EVP_VerifyInit_ex(&ctx,type, NULL);
+        EVP_VerifyUpdate(&ctx,(unsigned char *)buf_in,inl);
+
+        OPENSSL_cleanse(buf_in,(unsigned int)inl);
+        OPENSSL_free(buf_in);
+
+        if (EVP_VerifyFinal(&ctx,(unsigned char *)signature->data,
+                        (unsigned int)signature->length,pkey) <= 0)
+                {
+                ASN1err(ASN1_F_ASN1_VERIFY,ERR_R_EVP_LIB);
+                ret=0;
+                goto err;
+                }
+        /* we don't need to zero the 'ctx' because we just checked
+         * public information */
+        /* memset(&ctx,0,sizeof(ctx)); */
+        ret=1;
+err:
+        EVP_MD_CTX_cleanup(&ctx);
+        return(ret);
+        }
+
+#endif
+
+
+int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *a, ASN1_BIT_STRING *signature,
+             void *asn, EVP_PKEY *pkey)
+        {
+        EVP_MD_CTX ctx;
+        const EVP_MD *type;
+        unsigned char *buf_in=NULL;
+        int ret= -1,i,inl;
+
+        EVP_MD_CTX_init(&ctx);
+        i=OBJ_obj2nid(a->algorithm);
+        type=EVP_get_digestbyname(OBJ_nid2sn(i));
+        if (type == NULL)
+                {
+                ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+                goto err;
+                }
+
+        if (!EVP_VerifyInit_ex(&ctx,type, NULL))
+                {
+                ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ERR_R_EVP_LIB);
+                ret=0;
+                goto err;
+                }
+
+        inl = ASN1_item_i2d(asn, &buf_in, it);
+        
+        if (buf_in == NULL)
+                {
+                ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ERR_R_MALLOC_FAILURE);
+                goto err;
+                }
+
+        EVP_VerifyUpdate(&ctx,(unsigned char *)buf_in,inl);
+
+        OPENSSL_cleanse(buf_in,(unsigned int)inl);
+        OPENSSL_free(buf_in);
+
+        if (EVP_VerifyFinal(&ctx,(unsigned char *)signature->data,
+                        (unsigned int)signature->length,pkey) <= 0)
+                {
+                ASN1err(ASN1_F_ASN1_ITEM_VERIFY,ERR_R_EVP_LIB);
+                ret=0;
+                goto err;
+                }
+        /* we don't need to zero the 'ctx' because we just checked
+         * public information */
+        /* memset(&ctx,0,sizeof(ctx)); */
+        ret=1;
+err:
+        EVP_MD_CTX_cleanup(&ctx);
+        return(ret);
+        }
+
+