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/evp_key.c | 152 ++++++++++++++++++++++++++++++++++++
 1 file changed, 152 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/evp/evp_key.c

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

diff --git a/openssl-1.1.0h/crypto/evp/evp_key.c b/openssl-1.1.0h/crypto/evp/evp_key.c
new file mode 100644
index 0000000..5201130
--- /dev/null
+++ b/openssl-1.1.0h/crypto/evp/evp_key.c
@@ -0,0 +1,152 @@
+/*
+ * 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/x509.h>
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include <openssl/ui.h>
+
+#ifndef OPENSSL_NO_UI
+/* should be init to zeros. */
+static char prompt_string[80];
+
+void EVP_set_pw_prompt(const char *prompt)
+{
+    if (prompt == NULL)
+        prompt_string[0] = '\0';
+    else {
+        strncpy(prompt_string, prompt, 79);
+        prompt_string[79] = '\0';
+    }
+}
+
+char *EVP_get_pw_prompt(void)
+{
+    if (prompt_string[0] == '\0')
+        return (NULL);
+    else
+        return (prompt_string);
+}
+
+/*
+ * For historical reasons, the standard function for reading passwords is in
+ * the DES library -- if someone ever wants to disable DES, this function
+ * will fail
+ */
+int EVP_read_pw_string(char *buf, int len, const char *prompt, int verify)
+{
+    return EVP_read_pw_string_min(buf, 0, len, prompt, verify);
+}
+
+int EVP_read_pw_string_min(char *buf, int min, int len, const char *prompt,
+                           int verify)
+{
+    int ret = -1;
+    char buff[BUFSIZ];
+    UI *ui;
+
+    if ((prompt == NULL) && (prompt_string[0] != '\0'))
+        prompt = prompt_string;
+    ui = UI_new();
+    if (ui == NULL)
+        return ret;
+    if (UI_add_input_string(ui, prompt, 0, buf, min,
+                            (len >= BUFSIZ) ? BUFSIZ - 1 : len) < 0
+        || (verify
+            && UI_add_verify_string(ui, prompt, 0, buff, min,
+                                    (len >= BUFSIZ) ? BUFSIZ - 1 : len,
+                                    buf) < 0))
+        goto end;
+    ret = UI_process(ui);
+    OPENSSL_cleanse(buff, BUFSIZ);
+ end:
+    UI_free(ui);
+    return ret;
+}
+#endif /* OPENSSL_NO_UI */
+
+int EVP_BytesToKey(const EVP_CIPHER *type, const EVP_MD *md,
+                   const unsigned char *salt, const unsigned char *data,
+                   int datal, int count, unsigned char *key,
+                   unsigned char *iv)
+{
+    EVP_MD_CTX *c;
+    unsigned char md_buf[EVP_MAX_MD_SIZE];
+    int niv, nkey, addmd = 0;
+    unsigned int mds = 0, i;
+    int rv = 0;
+    nkey = EVP_CIPHER_key_length(type);
+    niv = EVP_CIPHER_iv_length(type);
+    OPENSSL_assert(nkey <= EVP_MAX_KEY_LENGTH);
+    OPENSSL_assert(niv <= EVP_MAX_IV_LENGTH);
+
+    if (data == NULL)
+        return (nkey);
+
+    c = EVP_MD_CTX_new();
+    if (c == NULL)
+        goto err;
+    for (;;) {
+        if (!EVP_DigestInit_ex(c, md, NULL))
+            goto err;
+        if (addmd++)
+            if (!EVP_DigestUpdate(c, &(md_buf[0]), mds))
+                goto err;
+        if (!EVP_DigestUpdate(c, data, datal))
+            goto err;
+        if (salt != NULL)
+            if (!EVP_DigestUpdate(c, salt, PKCS5_SALT_LEN))
+                goto err;
+        if (!EVP_DigestFinal_ex(c, &(md_buf[0]), &mds))
+            goto err;
+
+        for (i = 1; i < (unsigned int)count; i++) {
+            if (!EVP_DigestInit_ex(c, md, NULL))
+                goto err;
+            if (!EVP_DigestUpdate(c, &(md_buf[0]), mds))
+                goto err;
+            if (!EVP_DigestFinal_ex(c, &(md_buf[0]), &mds))
+                goto err;
+        }
+        i = 0;
+        if (nkey) {
+            for (;;) {
+                if (nkey == 0)
+                    break;
+                if (i == mds)
+                    break;
+                if (key != NULL)
+                    *(key++) = md_buf[i];
+                nkey--;
+                i++;
+            }
+        }
+        if (niv && (i != mds)) {
+            for (;;) {
+                if (niv == 0)
+                    break;
+                if (i == mds)
+                    break;
+                if (iv != NULL)
+                    *(iv++) = md_buf[i];
+                niv--;
+                i++;
+            }
+        }
+        if ((nkey == 0) && (niv == 0))
+            break;
+    }
+    rv = EVP_CIPHER_key_length(type);
+ err:
+    EVP_MD_CTX_free(c);
+    OPENSSL_cleanse(md_buf, sizeof(md_buf));
+    return rv;
+}
-- 
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