From aa4d426b4d3527d7e166df1a05058c9a4a0f6683 Mon Sep 17 00:00:00 2001
From: Wojtek Kosior <wk@koszkonutek-tmp.pl.eu.org>
Date: Fri, 30 Apr 2021 00:33:56 +0200
Subject: initial/final commit

---
 openssl-1.1.0h/crypto/evp/p_seal.c | 70 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/evp/p_seal.c

(limited to 'openssl-1.1.0h/crypto/evp/p_seal.c')

diff --git a/openssl-1.1.0h/crypto/evp/p_seal.c b/openssl-1.1.0h/crypto/evp/p_seal.c
new file mode 100644
index 0000000..faa2464
--- /dev/null
+++ b/openssl-1.1.0h/crypto/evp/p_seal.c
@@ -0,0 +1,70 @@
+/*
+ * 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 "internal/cryptlib.h"
+#include <openssl/rand.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/objects.h>
+#include <openssl/x509.h>
+
+int EVP_SealInit(EVP_CIPHER_CTX *ctx, const EVP_CIPHER *type,
+                 unsigned char **ek, int *ekl, unsigned char *iv,
+                 EVP_PKEY **pubk, int npubk)
+{
+    unsigned char key[EVP_MAX_KEY_LENGTH];
+    int i;
+
+    if (type) {
+        EVP_CIPHER_CTX_reset(ctx);
+        if (!EVP_EncryptInit_ex(ctx, type, NULL, NULL, NULL))
+            return 0;
+    }
+    if ((npubk <= 0) || !pubk)
+        return 1;
+    if (EVP_CIPHER_CTX_rand_key(ctx, key) <= 0)
+        return 0;
+    if (EVP_CIPHER_CTX_iv_length(ctx)
+        && RAND_bytes(iv, EVP_CIPHER_CTX_iv_length(ctx)) <= 0)
+        return 0;
+
+    if (!EVP_EncryptInit_ex(ctx, NULL, NULL, key, iv))
+        return 0;
+
+    for (i = 0; i < npubk; i++) {
+        ekl[i] =
+            EVP_PKEY_encrypt_old(ek[i], key, EVP_CIPHER_CTX_key_length(ctx),
+                                 pubk[i]);
+        if (ekl[i] <= 0)
+            return (-1);
+    }
+    return (npubk);
+}
+
+/*- MACRO
+void EVP_SealUpdate(ctx,out,outl,in,inl)
+EVP_CIPHER_CTX *ctx;
+unsigned char *out;
+int *outl;
+unsigned char *in;
+int inl;
+        {
+        EVP_EncryptUpdate(ctx,out,outl,in,inl);
+        }
+*/
+
+int EVP_SealFinal(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl)
+{
+    int i;
+    i = EVP_EncryptFinal_ex(ctx, out, outl);
+    if (i)
+        i = EVP_EncryptInit_ex(ctx, NULL, NULL, NULL, NULL);
+    return i;
+}
-- 
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