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Partial commit: Crypto

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This commit is contained in:
Nekotekina 2016-02-02 00:52:27 +03:00
parent edd0965c1a
commit b85fc50854
13 changed files with 133 additions and 183 deletions
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28
rpcs3/Crypto/unedat.cpp
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@ -170,7 +170,7 @@ int decrypt_data(const fs::file* in, const fs::file* out, EDAT_HEADER *edat, NPD
{
metadata_sec_offset = metadata_offset + (unsigned long long) i * metadata_section_size;
CHECK_ASSERTION(in->seek(metadata_sec_offset) != -1);
in->seek(metadata_sec_offset);
unsigned char metadata[0x20];
memset(metadata, 0, 0x20);
@ -199,7 +199,7 @@ int decrypt_data(const fs::file* in, const fs::file* out, EDAT_HEADER *edat, NPD
{
// If FLAG 0x20, the metadata precedes each data block.
metadata_sec_offset = metadata_offset + (unsigned long long) i * (metadata_section_size + length);
CHECK_ASSERTION(in->seek(metadata_sec_offset) != -1);
in->seek(metadata_sec_offset);
unsigned char metadata[0x20];
memset(metadata, 0, 0x20);
@ -220,7 +220,7 @@ int decrypt_data(const fs::file* in, const fs::file* out, EDAT_HEADER *edat, NPD
else
{
metadata_sec_offset = metadata_offset + (unsigned long long) i * metadata_section_size;
CHECK_ASSERTION(in->seek(metadata_sec_offset) != -1);
in->seek(metadata_sec_offset);
in->read(hash_result, 0x10);
offset = metadata_offset + (unsigned long long) i * edat->block_size + (unsigned long long) block_num * metadata_section_size;
@ -242,8 +242,7 @@ int decrypt_data(const fs::file* in, const fs::file* out, EDAT_HEADER *edat, NPD
memset(hash, 0, 0x10);
memset(key_result, 0, 0x10);
CHECK_ASSERTION(in->seek(offset) != -1);
in->seek(offset);
in->read(enc_data, length);
// Generate a key for the current block.
@ -347,7 +346,7 @@ int decrypt_data(const fs::file* in, const fs::file* out, EDAT_HEADER *edat, NPD
int check_data(unsigned char *key, EDAT_HEADER *edat, NPD_HEADER *npd, const fs::file* f, bool verbose)
{
CHECK_ASSERTION(f->seek(0) != -1);
f->seek(0);
unsigned char header[0xA0];
unsigned char empty_header[0xA0];
unsigned char header_hash[0x10];
@ -392,8 +391,7 @@ int check_data(unsigned char *key, EDAT_HEADER *edat, NPD_HEADER *npd, const fs:
f->read(header, 0xA0);
// Read in the header and metadata section hashes.
CHECK_ASSERTION(f->seek(0x90) != -1);
f->seek(0x90);
f->read(metadata_hash, 0x10);
f->read(header_hash, 0x10);
@ -449,7 +447,7 @@ int check_data(unsigned char *key, EDAT_HEADER *edat, NPD_HEADER *npd, const fs:
while (bytes_to_read > 0)
{
// Locate the metadata blocks.
CHECK_ASSERTION(f->seek(metadata_section_offset) != -1);
f->seek(metadata_section_offset);
// Read in the metadata.
f->read(metadata + bytes_read, metadata_section_size);
@ -496,9 +494,9 @@ int check_data(unsigned char *key, EDAT_HEADER *edat, NPD_HEADER *npd, const fs:
// Read in the metadata and header signatures.
CHECK_ASSERTION(f->seek(0xB0) != -1);
f->seek(0xB0);
f->read(metadata_signature, 0x28);
CHECK_ASSERTION(f->seek(0xD8) != -1);
f->seek(0xD8);
f->read(header_signature, 0x28);
// Checking metadata signature.
@ -514,7 +512,7 @@ int check_data(unsigned char *key, EDAT_HEADER *edat, NPD_HEADER *npd, const fs:
{
int metadata_buf_size = block_num * 0x10;
unsigned char *metadata_buf = new unsigned char[metadata_buf_size];
CHECK_ASSERTION(f->seek(metadata_offset) != -1);
f->seek(metadata_offset);
f->read(metadata_buf, metadata_buf_size);
sha1(metadata_buf, metadata_buf_size, signature_hash);
delete[] metadata_buf;
@ -547,7 +545,7 @@ int check_data(unsigned char *key, EDAT_HEADER *edat, NPD_HEADER *npd, const fs:
// Setup header signature hash.
memset(signature_hash, 0, 20);
unsigned char *header_buf = new unsigned char[0xD8];
CHECK_ASSERTION(f->seek(0x00) != -1);
f->seek(0x00);
f->read(header_buf, 0xD8);
sha1(header_buf, 0xD8, signature_hash );
delete[] header_buf;
@ -819,7 +817,7 @@ int DecryptEDAT(const std::string& input_file_name, const std::string& output_fi
{
// Prepare the files.
fs::file input(input_file_name);
fs::file output(output_file_name, fom::rewrite);
fs::file output(output_file_name, fs::rewrite);
// Set keys (RIF and DEVKLIC).
unsigned char rifkey[0x10];
@ -893,7 +891,7 @@ int DecryptEDAT(const std::string& input_file_name, const std::string& output_fi
// Delete the bad output file if any errors arise.
if (extract_data(&input, &output, input_file_name.c_str(), devklic, rifkey, verbose))
{
output.close();
output.release();
fs::remove_file(output_file_name);
return -1;
}