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Everywhere: Remove LibCrypt

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This was totally unused.
This commit is contained in:
Andreas Kling 2024-06-04 08:03:46 +02:00
parent f2fd8fc928
commit 5b4d071daa
Notes: sideshowbarker 2024-07-17 07:48:42 +09:00
3 changed files with 0 additions and 114 deletions
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16
Userland/Libraries/LibCrypt/CMakeLists.txt
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@ -1,16 +0,0 @@
# HACK ALERT!
# To avoid a circular dependency chain with LibCrypt --> LibCrypto --> LibCore --> LibCrypt
# We include the SHA2 implementation from LibCrypto here manually
add_library(LibCryptSHA2 OBJECT ../LibCrypto/Hash/SHA2.cpp)
add_dependencies(LibCryptSHA2 install_libc_headers)
set_target_properties(LibCryptSHA2 PROPERTIES CXX_VISIBILITY_PRESET hidden)
set_target_properties(LibCryptSHA2 PROPERTIES VISIBILITY_INLINES_HIDDEN ON)
set(SOURCES
crypt.cpp
)
serenity_lib(LibCrypt crypt)
serenity_install_headers("")
target_link_libraries(LibCrypt PRIVATE LibCryptSHA2)

70
Userland/Libraries/LibCrypt/crypt.cpp
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@ -1,70 +0,0 @@
/*
* Copyright (c) 2020, Peter Elliott <pelliott@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/Base64.h>
#include <AK/Types.h>
#include <LibCrypto/Hash/SHA2.h>
#include <crypt.h>
#include <errno.h>
#include <string.h>
extern "C" {
static struct crypt_data crypt_data;
char* crypt(char const* key, char const* salt)
{
crypt_data.initialized = true;
return crypt_r(key, salt, &crypt_data);
}
static constexpr size_t crypt_salt_max = 16;
char* crypt_r(char const* key, char const* salt, struct crypt_data* data)
{
if (!data->initialized) {
errno = EINVAL;
return nullptr;
}
// We only support SHA-256 at the moment
if (salt[0] != '$' || salt[1] != '5') {
errno = EINVAL;
return nullptr;
}
char const* salt_value = salt + 3;
size_t salt_len = min(strcspn(salt_value, "$"), crypt_salt_max);
size_t header_len = salt_len + 3;
bool fits = ByteString(salt, header_len).copy_characters_to_buffer(data->result, sizeof(data->result));
if (!fits) {
errno = EINVAL;
return nullptr;
}
data->result[header_len] = '$';
Crypto::Hash::SHA256 sha;
sha.update(StringView { key, strlen(key) });
sha.update(reinterpret_cast<u8 const*>(salt_value), salt_len);
auto digest = sha.digest();
auto string_or_error = encode_base64({ digest.immutable_data(), digest.data_length() });
if (string_or_error.is_error()) {
errno = ENOMEM;
return nullptr;
}
auto string = string_or_error.value().bytes_as_string_view();
fits = string.copy_characters_to_buffer(data->result + header_len + 1, sizeof(data->result) - header_len - 1);
if (!fits) {
errno = EINVAL;
return nullptr;
}
return data->result;
}
}

28
Userland/Libraries/LibCrypt/crypt.h
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@ -1,28 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
/* standard symbolic constants and types
*
* values from POSIX standard unix specification
*
* https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/unistd.h.html
*/
#pragma once
#include <sys/cdefs.h>
__BEGIN_DECLS
struct crypt_data {
int initialized;
char result[65];
};
char* crypt(char const* key, char const* salt);
char* crypt_r(char const* key, char const* salt, struct crypt_data* data);
__END_DECLS