firebird/firebird-mirror
firebird/firebird-mirror
8
0
Fork 1
mirror of https://github.com/FirebirdSQL/firebird.git synced 2025-01-24 04:03:03 +01:00
Code Issues

Port ENC_crypt to 64 bits

Browse Source
This commit is contained in:
skidder 2004-11-11 04:47:06 +00:00
parent 704dd48eac
commit f9c25741c3
1 changed files with 15 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

41
src/jrd/enc.cpp
View File

@ -60,7 +60,7 @@ extern "C" {
*/
int des_setkey(const char* key);
int des_cipher(const char* in, char* out, long salt, int num_iter);
int des_cipher(const char* in, char* out, SLONG salt, int num_iter);
/*
* UNIX password, and DES, encryption.
@ -93,12 +93,6 @@ int des_cipher(const char* in, char* out, long salt, int num_iter);
#endif
#endif
/*
* define "LONG_IS_32_BITS" only if sizeof(long)==4.
* This avoids use of bit fields (your compiler may be sloppy with them).
*/
#define LONG_IS_32_BITS
/* compile with "-DSTATIC=int" when profiling */
#ifndef STATIC
#define STATIC static
@ -223,14 +217,9 @@ int des_cipher(const char* in, char* out, long salt, int num_iter);
union C_block{
unsigned char b[8];
struct {
#if defined(LONG_IS_32_BITS)
/* long is often faster than a 32-bit bit field */
long i0;
long i1;
#else
long i0:32;
long i1:32;
#endif
SLONG i0;
SLONG i1;
} b32;
};
@ -256,7 +245,7 @@ union C_block{
#define LOADREG(d,d0,d1,s,s0,s1) d0 = s0, d1 = s1
#define OR(d,d0,d1,bl) d0 |= (bl).b32.i0, d1 |= (bl).b32.i1
#define STORE(s,s0,s1,bl) (bl).b32.i0 = s0, (bl).b32.i1 = s1
#define DCL_BLOCK(d,d0,d1) long d0, d1
#define DCL_BLOCK(d,d0,d1) SLONG d0, d1
/* "small data" */
#define LGCHUNKBITS 2
@ -431,7 +420,7 @@ static C_block PC2ROT[2][64 / CHUNKBITS][1 << CHUNKBITS];
static C_block IE3264[32 / CHUNKBITS][1 << CHUNKBITS];
/* Table that combines the S, P, and E operations. */
static long SPE[2][8][64];
static SLONG SPE[2][8][64];
/* compressed/interleaved => final permutation table */
static C_block CF6464[64 / CHUNKBITS][1 << CHUNKBITS];
@ -451,11 +440,11 @@ void ENC_crypt(TEXT* buf, size_t bufSize, const TEXT* key, const TEXT* setting)
{
fb_assert(bufSize >= RESULT_SIZE);
unsigned long a, b, d;
ULONG a, b, d;
char *encp;
long i;
SLONG i;
int t;
long salt;
SLONG salt;
int num_iter, salt_size;
C_block keyblock, rsltblock;
@ -532,7 +521,7 @@ void ENC_crypt(TEXT* buf, size_t bufSize, const TEXT* key, const TEXT* setting)
/*
* Encode the 64 cipher bits as 11 ascii characters.
*/
/* i = ((long)((rsltblock.b[0]<<8) | rsltblock.b[1])<<8) | rsltblock.b[2]; */
/* i = ((SLONG)((rsltblock.b[0]<<8) | rsltblock.b[1])<<8) | rsltblock.b[2]; */
a = rsltblock.b[0];
a = a << 8;
b = rsltblock.b[1];
@ -550,7 +539,7 @@ void ENC_crypt(TEXT* buf, size_t bufSize, const TEXT* key, const TEXT* setting)
encp[0] = itoa64[i];
encp += 4;
/* i = ((long)((rsltblock.b[3]<<8) | rsltblock.b[4])<<8) | rsltblock.b[5]; */
/* i = ((SLONG)((rsltblock.b[3]<<8) | rsltblock.b[4])<<8) | rsltblock.b[5]; */
a = rsltblock.b[3];
a = a << 8;
b = rsltblock.b[4];
@ -568,7 +557,7 @@ void ENC_crypt(TEXT* buf, size_t bufSize, const TEXT* key, const TEXT* setting)
encp[0] = itoa64[i];
encp += 4;
/* i = ((long)((rsltblock.b[6])<<8) | rsltblock.b[7])<<2; */
/* i = ((SLONG)((rsltblock.b[6])<<8) | rsltblock.b[7])<<2; */
a = rsltblock.b[6];
a = a << 8;
b = rsltblock.b[7];
@ -629,10 +618,10 @@ int des_setkey(const char *key)
* NOTE: the performance of this routine is critically dependent on your
* compiler and machine architecture.
*/
int des_cipher(const char* in, char* out, long salt, int num_iter)
int des_cipher(const char* in, char* out, SLONG salt, int num_iter)
{
/* variables that we want in registers, most important first */
long L0, L1, R0, R1, k;
SLONG L0, L1, R0, R1, k;
C_block *kp;
int ks_inc, loop_count;
C_block B;
@ -680,7 +669,7 @@ int des_cipher(const char* in, char* out, long salt, int num_iter)
loop_count = 8;
do {
#define SPTAB(t, i) (*(long *)((unsigned char *)t + i*(sizeof(long)/4)))
#define SPTAB(t, i) (*(SLONG *)((unsigned char *)t + i*(sizeof(SLONG)/4)))
/* use this if "k" is allocated to a register ... */
#define DOXOR(x,y,i) k=B.b[i]; x^=SPTAB(SPE[0][i],k); y^=SPTAB(SPE[1][i],k);
@ -743,7 +732,7 @@ int des_cipher(const char* in, char* out, long salt, int num_iter)
STATIC void init_des()
{
int i, j;
long k;
SLONG k;
int tableno;
static unsigned char perm[64], tmp32[32]; /* "static" for speed */