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update// added filesystem and reformated addressbook

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This commit is contained in:
Strider
2020-05-17 13:18:19 +02:00
parent 57a5df8ae7
commit 4f584ac86e
22 changed files with 615 additions and 8 deletions
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102
src/Crypto/FileEncryption.cpp Normal file
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#include "FileEncryption.h"
void FileEncryption::showConfig()
{
qInfo() << FILEENCRYPTION_CHUNK_SIZE;
}
int FileEncryption::encrypt(QString target_file, QString source_file, const unsigned char key[crypto_secretstream_xchacha20poly1305_KEYBYTES])
{
unsigned char buf_in[FILEENCRYPTION_CHUNK_SIZE];
unsigned char buf_out[FILEENCRYPTION_CHUNK_SIZE + crypto_secretstream_xchacha20poly1305_ABYTES];
unsigned char header[crypto_secretstream_xchacha20poly1305_HEADERBYTES];
crypto_secretstream_xchacha20poly1305_state st;
FILE *fp_t, *fp_s;
unsigned long long out_len;
size_t rlen;
int eof;
unsigned char tag;
fp_s = fopen(source_file.toStdString().c_str(), "rb");
fp_t = fopen(target_file.toStdString().c_str(), "wb");
crypto_secretstream_xchacha20poly1305_init_push(&st, header, key);
fwrite(header, 1, sizeof header, fp_t);
do
{
rlen = fread(buf_in, 1, sizeof buf_in, fp_s);
eof = feof(fp_s);
tag = eof ? crypto_secretstream_xchacha20poly1305_TAG_FINAL : 0;
crypto_secretstream_xchacha20poly1305_push(
&st,
buf_out,
&out_len,
buf_in,
rlen,
NULL,
0,
tag
);
fwrite(buf_out, 1, (size_t) out_len, fp_t);
}
while (! eof);
fclose(fp_t);
fclose(fp_s);
return 0;
}
int FileEncryption::decrypt(QString target_file, QString source_file, const unsigned char key[crypto_secretstream_xchacha20poly1305_KEYBYTES])
{
unsigned char buf_in[FILEENCRYPTION_CHUNK_SIZE + crypto_secretstream_xchacha20poly1305_ABYTES];
unsigned char buf_out[FILEENCRYPTION_CHUNK_SIZE];
unsigned char header[crypto_secretstream_xchacha20poly1305_HEADERBYTES];
crypto_secretstream_xchacha20poly1305_state st;
FILE *fp_t, *fp_s;
unsigned long long out_len;
size_t rlen;
int eof;
int ret = -1;
unsigned char tag;
fp_s = fopen(source_file.toStdString().c_str(), "rb");
fp_t = fopen(target_file.toStdString().c_str(), "wb");
fread(header, 1, sizeof header, fp_s);
if (crypto_secretstream_xchacha20poly1305_init_pull(&st, header, key) != 0)
{
goto ret; /* incomplete header */
}
do
{
rlen = fread(buf_in, 1, sizeof buf_in, fp_s);
eof = feof(fp_s);
if (crypto_secretstream_xchacha20poly1305_pull(
&st,
buf_out,
&out_len,
&tag,
buf_in,
rlen,
NULL,
0
) != 0)
{
goto ret; /* corrupted chunk */
}
if (tag == crypto_secretstream_xchacha20poly1305_TAG_FINAL && ! eof)
{
goto ret; /* premature end (end of file reached before the end of the stream) */
}
fwrite(buf_out, 1, (size_t) out_len, fp_t);
}
while (! eof);
ret = 0;
ret:
fclose(fp_t);
fclose(fp_s);
return ret;
}