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lsp_hash.c
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305 lines (272 loc) · 7.59 KB
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#include "linux_ver.h"
#include "inc/lspx/lsp_hash.h"
#include "inc/lspx/lsp_host.h"
void
lsp_call
lsp_encrypt32_build_combined_key(
__out lsp_uint32_t* ckey,
__in const lsp_uint32_t key,
__in_ecount(8) const lsp_uint8_t* pwd)
{
lsp_uint8_t key_code[4];
*(lsp_uint32_t *)key_code = lsp_htobel(key);
*ckey =
((pwd[1] ^ pwd[7] ^ key_code[0]) & 0xFF) << 0 |
((pwd[0] ^ pwd[3] ^ key_code[3]) & 0xFF) << 8 |
((pwd[2] ^ pwd[6] ^ key_code[1]) & 0xFF) << 16 |
((pwd[4] ^ pwd[5] ^ key_code[2]) & 0xFF) << 24;
}
void
lsp_call
lsp_decrypt32_build_combined_key(
__out lsp_uint32_t* ckey,
__in const lsp_uint32_t key,
__in_ecount(8) const lsp_uint8_t* pwd)
{
lsp_uint8_t key_code[4];
*(lsp_uint32_t *)key_code = lsp_htobel(key);
*ckey =
((~(pwd[0] ^ pwd[3] ^ key_code[3])) & 0xFF) << 0 |
(( pwd[2] ^ pwd[6] ^ key_code[1]) & 0xFF) << 8 |
(( pwd[4] ^ pwd[5] ^ ~(key_code[2])) & 0xFF) << 16 |
(( pwd[1] ^ pwd[7] ^ key_code[0]) & 0xFF) << 24;
}
void
lsp_call
lsp_hash_uint32_to128(
__out_ecount(16) lsp_uint8_t* dst,
__in lsp_uint32_t src,
__in_ecount(8) const lsp_uint8_t* key)
{
/* 0x268F2736 */
static const lsp_uint8_t kc0[4] = { 0x36, 0x27, 0x8F, 0x26};
/* 0x813A76BC */
static const lsp_uint8_t kc1[4] = { 0xBC, 0x76, 0x3A, 0x81};
lsp_uint8_t src_code[4];
*(lsp_uint32_t *)src_code = lsp_htobel(src);
dst[ 0] = (lsp_uint8_t) key[2] ^ src_code[2];
dst[ 1] = (lsp_uint8_t) kc0[3] | src_code[1];
dst[ 2] = (lsp_uint8_t) kc0[2] & src_code[2];
dst[ 3] = (lsp_uint8_t) ~(key[6] ^ src_code[1]);
dst[ 4] = (lsp_uint8_t) kc1[2] ^ src_code[0];
dst[ 5] = (lsp_uint8_t) key[0] & src_code[3];
dst[ 6] = (lsp_uint8_t) ~(kc1[0] ^ src_code[2]);
dst[ 7] = (lsp_uint8_t) key[5] | src_code[0];
dst[ 8] = (lsp_uint8_t) key[7] & src_code[1];
dst[ 9] = (lsp_uint8_t) kc0[0] ^ src_code[2];
dst[10] = (lsp_uint8_t) key[4] ^ src_code[0];
dst[11] = (lsp_uint8_t) ~(kc1[1] ^ src_code[3]);
dst[12] = (lsp_uint8_t) key[3] ^ src_code[1];
dst[13] = (lsp_uint8_t) kc0[1] & src_code[0];
dst[14] = (lsp_uint8_t) key[1] ^ src_code[0];
dst[15] = (lsp_uint8_t) kc1[3] | src_code[3];
}
void
lsp_call
lsp_encrypt32(
__inout_ecount(len) lsp_uint8_t* buf,
__in lsp_uint32_t len,
__in lsp_uint32_t key,
__in_ecount(8) const lsp_uint8_t* pwd)
{
lsp_uint32_t i;
lsp_uint8_t key_code[4];
*(lsp_uint32_t *)key_code = lsp_htobel(key);
for (i = 0; i < len / 4; ++i)
{
lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &buf[i*4];
res[0] = (lsp_uint8_t) pwd[1] ^ pwd[7] ^ p[3] ^ key_code[0];
res[1] = (lsp_uint8_t) ~(pwd[0] ^ pwd[3] ^ p[0] ^ key_code[3]);
res[2] = (lsp_uint8_t) pwd[2] ^ pwd[6] ^ p[1] ^ key_code[1];
res[3] = (lsp_uint8_t) ~(pwd[4] ^ pwd[5] ^ p[2] ^ key_code[2]);
lsp_memcpy(p, res, 4);
}
}
void
lsp_call
lsp_encrypt32ex(
__inout_ecount(len) lsp_uint8_t* buf,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
lsp_uint8_t ckey_code[4];
*(lsp_uint32_t *)ckey_code = lsp_htobel(ckey);
for (i = 0; i < len / 4; i++)
{
lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &buf[i*4];
res[0] = (lsp_uint8_t) ckey_code[3] ^ p[3];
res[1] = (lsp_uint8_t) ~(ckey_code[2] ^ p[0]);
res[2] = (lsp_uint8_t) ckey_code[1] ^ p[1];
res[3] = (lsp_uint8_t) ~(ckey_code[0] ^ p[2]);
lsp_memcpy(p, res, 4);
}
}
void
lsp_call
lsp_encrypt32exx(
__inout_bcount(len) lsp_uint8_t* buf,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
for (i = 0; i < len / 4; i++)
{
lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &buf[i*4];
res[0] = (lsp_uint8_t) ((ckey >> 0 ) & 0xFF) ^ p[3];
res[1] = (lsp_uint8_t) ~(((ckey >> 8 ) & 0xFF) ^ p[0]);
res[2] = (lsp_uint8_t) ((ckey >> 16) & 0xFF) ^ p[1];
res[3] = (lsp_uint8_t) ~(((ckey >> 24) & 0xFF) ^ p[2]);
lsp_memcpy(p, res, 4);
}
}
void
lsp_call
lsp_encrypt32ex_copy(
__out_ecount(len) lsp_uint8_t* dst,
__in_ecount(len) const lsp_uint8_t* src,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
lsp_uint8_t ckey_code[4];
*(lsp_uint32_t *)ckey_code = lsp_htobel(ckey);
for (i = 0; i < len / 4; ++i)
{
dst[i*4 + 0] = (lsp_uint8_t) ckey_code[3] ^ src[i*4 + 3];
dst[i*4 + 1] = (lsp_uint8_t) ~(ckey_code[2] ^ src[i*4 + 0]);
dst[i*4 + 2] = (lsp_uint8_t) ckey_code[1] ^ src[i*4 + 1];
dst[i*4 + 3] = (lsp_uint8_t) ~(ckey_code[0] ^ src[i*4 + 2]);
}
}
void
lsp_call
lsp_encrypt32exx_copy(
__out_ecount(len) lsp_uint8_t* dst,
__in_ecount(len) const lsp_uint8_t* src,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
for (i = 0; i < len / 4; ++i)
{
dst[i*4 + 0] = (lsp_uint8_t) ((ckey >> 0 ) & 0xFF) ^ src[i*4 + 3];
dst[i*4 + 1] = (lsp_uint8_t) ~(((ckey >> 8 ) & 0xFF) ^ src[i*4 + 0]);
dst[i*4 + 2] = (lsp_uint8_t) ((ckey >> 16) & 0xFF) ^ src[i*4 + 1];
dst[i*4 + 3] = (lsp_uint8_t) ~(((ckey >> 24) & 0xFF) ^ src[i*4 + 2]);
}
}
void
lsp_call
lsp_decrypt32(
__inout_ecount(len) lsp_uint8_t* buf,
__in lsp_uint32_t len,
__in const lsp_uint32_t key,
__in_ecount(8) const lsp_uint8_t* pwd)
{
lsp_uint32_t i;
lsp_uint8_t key_code[4];
*(lsp_uint32_t *)key_code = lsp_letohl(key);
for (i = 0; i < len / 4; ++i)
{
lsp_uint8_t* p = &buf[i*4];
lsp_uint8_t res[4];
res[0] = pwd[0] ^ pwd[3] ^ ~(p[1]) ^ key_code[0];
res[1] = pwd[2] ^ pwd[6] ^ p[2] ^ key_code[2];
res[2] = pwd[4] ^ pwd[5] ^ p[3] ^ ~(key_code[1]);
res[3] = pwd[1] ^ pwd[7] ^ p[0] ^ key_code[3];
lsp_memcpy(p, res, 4);
}
}
void
lsp_call
lsp_decrypt32ex(
__inout_ecount(len) lsp_uint8_t* buf,
__in lsp_uint32_t len,
__in const lsp_uint32_t ckey)
{
lsp_uint32_t i;
lsp_uint8_t ckey_code[4];
*(lsp_uint32_t *)ckey_code = lsp_htobel(ckey);
for (i = 0; i < len/ 4; i++)
{
lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &buf[i*4];
res[0] = ckey_code[3] ^ p[1];
res[1] = ckey_code[2] ^ p[2];
res[2] = ckey_code[1] ^ p[3];
res[3] = ckey_code[0] ^ p[0];
lsp_memcpy(p, res, 4);
}
}
void
lsp_call
lsp_decrypt32exx(
__inout_ecount(len) lsp_uint8_t* buf,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
for (i = 0; i < len / 4; i++)
{
lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &buf[i*4];
res[0] = (lsp_uint8_t) ((ckey >> 0 ) & 0xFF) ^ p[1];
res[1] = (lsp_uint8_t) ((ckey >> 8 ) & 0xFF) ^ p[2];
res[2] = (lsp_uint8_t) ((ckey >> 16 ) & 0xFF) ^ p[3];
res[3] = (lsp_uint8_t) ((ckey >> 24 ) & 0xFF) ^ p[0];
lsp_memcpy(p, res, 4);
}
}
void
lsp_call
lsp_decrypt32ex_copy(
__out_ecount(len) lsp_uint8_t* dst,
__in_ecount(len) const lsp_uint8_t* src,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
lsp_uint8_t ckey_code[4];
*(lsp_uint32_t *)ckey_code = lsp_htobel(ckey);
for (i = 0; i < len/ 4; i++)
{
const lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &src[i*4];
res[0] = ckey_code[3] ^ p[1];
res[1] = ckey_code[2] ^ p[2];
res[2] = ckey_code[1] ^ p[3];
res[3] = ckey_code[0] ^ p[0];
lsp_memcpy(&dst[i*4], res, 4);
}
}
void
lsp_call
lsp_decrypt32exx_copy(
__out_ecount(len) lsp_uint8_t* dst,
__in_ecount(len) const lsp_uint8_t* src,
__in lsp_uint32_t len,
__in lsp_uint32_t ckey)
{
lsp_uint32_t i;
for (i = 0; i < len / 4; i++)
{
const lsp_uint8_t* p;
lsp_uint8_t res[4];
p = &src[i*4];
res[0] = (lsp_uint8_t) ((ckey >> 0 ) & 0xFF) ^ p[1];
res[1] = (lsp_uint8_t) ((ckey >> 8 ) & 0xFF) ^ p[2];
res[2] = (lsp_uint8_t) ((ckey >> 16 ) & 0xFF) ^ p[3];
res[3] = (lsp_uint8_t) ((ckey >> 24 ) & 0xFF) ^ p[0];
lsp_memcpy(&dst[i*4], res, 4);
}
}