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/pkcs12/p12_decr.c | 155 ++++++++++++++++++++++++++++++++
 1 file changed, 155 insertions(+)
 create mode 100644 openssl-1.1.0h/crypto/pkcs12/p12_decr.c

(limited to 'openssl-1.1.0h/crypto/pkcs12/p12_decr.c')

diff --git a/openssl-1.1.0h/crypto/pkcs12/p12_decr.c b/openssl-1.1.0h/crypto/pkcs12/p12_decr.c
new file mode 100644
index 0000000..3c86058
--- /dev/null
+++ b/openssl-1.1.0h/crypto/pkcs12/p12_decr.c
@@ -0,0 +1,155 @@
+/*
+ * Copyright 1999-2016 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/pkcs12.h>
+
+/* Define this to dump decrypted output to files called DERnnn */
+/*
+ * #define OPENSSL_DEBUG_DECRYPT
+ */
+
+/*
+ * Encrypt/Decrypt a buffer based on password and algor, result in a
+ * OPENSSL_malloc'ed buffer
+ */
+unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,
+                                const char *pass, int passlen,
+                                const unsigned char *in, int inlen,
+                                unsigned char **data, int *datalen, int en_de)
+{
+    unsigned char *out = NULL;
+    int outlen, i;
+    EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
+
+    if (ctx == NULL) {
+        PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    /* Decrypt data */
+    if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen,
+                            algor->parameter, ctx, en_de)) {
+        PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
+                  PKCS12_R_PKCS12_ALGOR_CIPHERINIT_ERROR);
+        goto err;
+    }
+
+    if ((out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(ctx)))
+            == NULL) {
+        PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    if (!EVP_CipherUpdate(ctx, out, &i, in, inlen)) {
+        OPENSSL_free(out);
+        out = NULL;
+        PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_EVP_LIB);
+        goto err;
+    }
+
+    outlen = i;
+    if (!EVP_CipherFinal_ex(ctx, out + i, &i)) {
+        OPENSSL_free(out);
+        out = NULL;
+        PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
+                  PKCS12_R_PKCS12_CIPHERFINAL_ERROR);
+        goto err;
+    }
+    outlen += i;
+    if (datalen)
+        *datalen = outlen;
+    if (data)
+        *data = out;
+ err:
+    EVP_CIPHER_CTX_free(ctx);
+    return out;
+
+}
+
+/*
+ * Decrypt an OCTET STRING and decode ASN1 structure if zbuf set zero buffer
+ * after use.
+ */
+
+void *PKCS12_item_decrypt_d2i(const X509_ALGOR *algor, const ASN1_ITEM *it,
+                              const char *pass, int passlen,
+                              const ASN1_OCTET_STRING *oct, int zbuf)
+{
+    unsigned char *out;
+    const unsigned char *p;
+    void *ret;
+    int outlen;
+
+    if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length,
+                          &out, &outlen, 0)) {
+        PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I,
+                  PKCS12_R_PKCS12_PBE_CRYPT_ERROR);
+        return NULL;
+    }
+    p = out;
+#ifdef OPENSSL_DEBUG_DECRYPT
+    {
+        FILE *op;
+
+        char fname[30];
+        static int fnm = 1;
+        sprintf(fname, "DER%d", fnm++);
+        op = fopen(fname, "wb");
+        fwrite(p, 1, outlen, op);
+        fclose(op);
+    }
+#endif
+    ret = ASN1_item_d2i(NULL, &p, outlen, it);
+    if (zbuf)
+        OPENSSL_cleanse(out, outlen);
+    if (!ret)
+        PKCS12err(PKCS12_F_PKCS12_ITEM_DECRYPT_D2I, PKCS12_R_DECODE_ERROR);
+    OPENSSL_free(out);
+    return ret;
+}
+
+/*
+ * Encode ASN1 structure and encrypt, return OCTET STRING if zbuf set zero
+ * encoding.
+ */
+
+ASN1_OCTET_STRING *PKCS12_item_i2d_encrypt(X509_ALGOR *algor,
+                                           const ASN1_ITEM *it,
+                                           const char *pass, int passlen,
+                                           void *obj, int zbuf)
+{
+    ASN1_OCTET_STRING *oct = NULL;
+    unsigned char *in = NULL;
+    int inlen;
+
+    if ((oct = ASN1_OCTET_STRING_new()) == NULL) {
+        PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    inlen = ASN1_item_i2d(obj, &in, it);
+    if (!in) {
+        PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCODE_ERROR);
+        goto err;
+    }
+    if (!PKCS12_pbe_crypt(algor, pass, passlen, in, inlen, &oct->data,
+                          &oct->length, 1)) {
+        PKCS12err(PKCS12_F_PKCS12_ITEM_I2D_ENCRYPT, PKCS12_R_ENCRYPT_ERROR);
+        OPENSSL_free(in);
+        goto err;
+    }
+    if (zbuf)
+        OPENSSL_cleanse(in, inlen);
+    OPENSSL_free(in);
+    return oct;
+ err:
+    ASN1_OCTET_STRING_free(oct);
+    return NULL;
+}
-- 
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