Remove in-place translations support.

[dcpomatic.git] / src / lib / crypto.cc

diff --git a/src/lib/crypto.cc b/src/lib/crypto.cc
deleted file mode 100644 (file)
index c67fc27..0000000
--- a/src/lib/crypto.cc
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
-    Copyright (C) 2018 Carl Hetherington <cth@carlh.net>
-
-    This file is part of DCP-o-matic.
-
-    DCP-o-matic is free software; you can redistribute it and/or modify
-    it under the terms of the GNU General Public License as published by
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    DCP-o-matic is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License
-    along with DCP-o-matic.  If not, see <http://www.gnu.org/licenses/>.
-
-*/
-
-/* Based on code from https://wiki.openssl.org/index.php/EVP_Symmetric_Encryption_and_Decryption */
-
-#include "crypto.h"
-#include "exceptions.h"
-#include <openssl/conf.h>
-#include <openssl/evp.h>
-#include <openssl/err.h>
-#include <openssl/rand.h>
-#include <boost/scoped_array.hpp>
-
-using std::string;
-using namespace dcpomatic;
-
-/** The cipher that this code uses */
-#define CIPHER EVP_aes_256_cbc()
-
-dcp::Data
-dcpomatic::random_iv ()
-{
-       EVP_CIPHER const * cipher = CIPHER;
-       dcp::Data iv (EVP_CIPHER_iv_length(cipher));
-       RAND_bytes (iv.data().get(), iv.size());
-       return iv;
-}
-
-dcp::Data
-dcpomatic::encrypt (string plaintext, dcp::Data key, dcp::Data iv)
-{
-       EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new ();
-       if (!ctx) {
-               throw CryptoError ("could not create cipher context");
-       }
-
-       int r = EVP_EncryptInit_ex (ctx, CIPHER, 0, key.data().get(), iv.data().get());
-       if (r != 1) {
-               throw CryptoError ("could not initialise cipher context for encryption");
-       }
-
-       dcp::Data ciphertext (plaintext.size() * 2);
-
-       int len;
-       r = EVP_EncryptUpdate (ctx, ciphertext.data().get(), &len, (uint8_t const *) plaintext.c_str(), plaintext.size());
-       if (r != 1) {
-               throw CryptoError ("could not encrypt data");
-       }
-
-       int ciphertext_len = len;
-
-       r = EVP_EncryptFinal_ex (ctx, ciphertext.data().get() + len, &len);
-       if (r != 1) {
-               throw CryptoError ("could not finish encryption");
-       }
-
-       ciphertext.set_size (ciphertext_len + len);
-
-       EVP_CIPHER_CTX_free (ctx);
-
-       return ciphertext;
-}
-
-string
-dcpomatic::decrypt (dcp::Data ciphertext, dcp::Data key, dcp::Data iv)
-{
-       EVP_CIPHER_CTX* ctx = EVP_CIPHER_CTX_new ();
-       if (!ctx) {
-               throw CryptoError ("could not create cipher context");
-       }
-
-       int r = EVP_DecryptInit_ex (ctx, CIPHER, 0, key.data().get(), iv.data().get());
-       if (r != 1) {
-               throw CryptoError ("could not initialise cipher context for decryption");
-       }
-
-       dcp::Data plaintext (ciphertext.size() * 2);
-
-       int len;
-       r = EVP_DecryptUpdate (ctx, plaintext.data().get(), &len, ciphertext.data().get(), ciphertext.size());
-       if (r != 1) {
-               throw CryptoError ("could not decrypt data");
-       }
-
-       int plaintext_len = len;
-
-       r = EVP_DecryptFinal_ex (ctx, plaintext.data().get() + len, &len);
-       if (r != 1) {
-               throw CryptoError ("could not finish decryption");
-       }
-
-       plaintext_len += len;
-       plaintext.set_size (plaintext_len + 1);
-       plaintext.data().get()[plaintext_len] = '\0';
-
-       EVP_CIPHER_CTX_free (ctx);
-
-       return string ((char *) plaintext.data().get());
-}
-
-int
-dcpomatic::crypto_key_length ()
-{
-       return EVP_CIPHER_key_length (CIPHER);
-}