Openssl 1.1.0h

crypto/asn1/a_digest.c

@@ -0,0 +1,63 @@
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <time.h>
+#include <sys/types.h>
+
+#include "internal/cryptlib.h"
+
+#include <openssl/err.h>
+#include <openssl/evp.h>
+#include <openssl/buffer.h>
+#include <openssl/x509.h>
+
+#ifndef NO_ASN1_OLD
+
+int ASN1_digest(i2d_of_void *i2d, const EVP_MD *type, char *data,
+                unsigned char *md, unsigned int *len)
+{
+    int i;
+    unsigned char *str, *p;
+
+    i = i2d(data, NULL);
+    if ((str = OPENSSL_malloc(i)) == NULL) {
+        ASN1err(ASN1_F_ASN1_DIGEST, ERR_R_MALLOC_FAILURE);
+        return (0);
+    }
+    p = str;
+    i2d(data, &p);
+
+    if (!EVP_Digest(str, i, md, len, type, NULL)) {
+        OPENSSL_free(str);
+        return 0;
+    }
+    OPENSSL_free(str);
+    return (1);
+}
+
+#endif
+
+int ASN1_item_digest(const ASN1_ITEM *it, const EVP_MD *type, void *asn,
+                     unsigned char *md, unsigned int *len)
+{
+    int i;
+    unsigned char *str = NULL;
+
+    i = ASN1_item_i2d(asn, &str, it);
+    if (!str)
+        return (0);
+
+    if (!EVP_Digest(str, i, md, len, type, NULL)) {
+        OPENSSL_free(str);
+        return 0;
+    }
+    OPENSSL_free(str);
+    return (1);
+}