Openssl 1.1.0h

crypto/rsa/rsa_none.c

@@ -0,0 +1,43 @@
+/*
+ * 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 "internal/cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+
+int RSA_padding_add_none(unsigned char *to, int tlen,
+                         const unsigned char *from, int flen)
+{
+    if (flen > tlen) {
+        RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
+        return (0);
+    }
+
+    if (flen < tlen) {
+        RSAerr(RSA_F_RSA_PADDING_ADD_NONE, RSA_R_DATA_TOO_SMALL_FOR_KEY_SIZE);
+        return (0);
+    }
+
+    memcpy(to, from, (unsigned int)flen);
+    return (1);
+}
+
+int RSA_padding_check_none(unsigned char *to, int tlen,
+                           const unsigned char *from, int flen, int num)
+{
+
+    if (flen > tlen) {
+        RSAerr(RSA_F_RSA_PADDING_CHECK_NONE, RSA_R_DATA_TOO_LARGE);
+        return (-1);
+    }
+
+    memset(to, 0, tlen - flen);
+    memcpy(to + tlen - flen, from, flen);
+    return (tlen);
+}