Ruby  2.0.0p481(2014-05-08revision45883)
Data Structures | Defines | Functions | Variables
missing/crypt.c File Reference
#include "ruby/missing.h"
#include <limits.h>
#include <stdio.h>
Include dependency graph for crypt.c:

Go to the source code of this file.

Data Structures

union  C_block

Defines

#define _PASSWORD_EFMT1   '_'
#define MUST_ALIGN
#define LONG_IS_32_BITS
#define STATIC   static
#define TO_SIX_BIT(rslt, src)
#define ZERO(d, d0, d1)   ((d0) = 0, (d1) = 0)
#define LOAD(d, d0, d1, bl)   ((d0) = (bl).b32.i0, (d1) = (bl).b32.i1)
#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 LGCHUNKBITS   2
#define CHUNKBITS   (1<<LGCHUNKBITS)
#define PERM6464(d, d0, d1, cpp, p)   { C_block tblk; permute((cpp),&tblk,(p),8); LOAD ((d),(d0),(d1),tblk); }
#define PERM3264(d, d0, d1, cpp, p)   { C_block tblk; permute((cpp),&tblk,(p),4); LOAD ((d),(d0),(d1),tblk); }
#define KS_SIZE   16
#define SALT   salt
#define SPTAB(t, i)   (*(long *)((unsigned char *)(t) + (i)*(sizeof(long)/4)))
#define DOXOR(x, y, i)   k=B.b[(i)]; (x)^=SPTAB(SPE[0][(i)],k); (y)^=SPTAB(SPE[1][(i)],k);
#define CRUNCH(p0, p1, q0, q1)

Functions

int des_setkey ()
int des_cipher ()
STATIC void init_des ()
STATIC void init_perm ()
STATIC void permute ()
STATIC void permute (unsigned char *cp, C_block *out, C_block *p, int chars_in)
char * crypt (const char *key, const char *setting)
int des_setkey (const char *key)
int des_cipher (char *in, char *out, long salt, int num_iter) const
STATIC void init_perm (perm, p, int chars_in, int chars_out)
int setkey (const char *key)
int encrypt (char *block, int flag)

Variables

static unsigned char IP []
static unsigned char ExpandTr []
static unsigned char PC1 []
static unsigned char Rotates []
static unsigned char PC2 []
static unsigned char S [8][64]
static unsigned char P32Tr []
static unsigned char CIFP []
static unsigned char itoa64 [] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz"
static unsigned char a64toi [128]
static C_block PC1ROT [64/CHUNKBITS][1<< CHUNKBITS]
static C_block PC2ROT [2][64/CHUNKBITS][1<< CHUNKBITS]
static C_block IE3264 [32/CHUNKBITS][1<< CHUNKBITS]
static long SPE [2][8][64]
static C_block CF6464 [64/CHUNKBITS][1<< CHUNKBITS]
static C_block constdatablock
static char cryptresult [1+4+4+11+1]
static C_block KS [KS_SIZE]

Define Documentation

#define _PASSWORD_EFMT1   '_'

Definition at line 47 of file crypt.c.

Referenced by crypt().

#define CHUNKBITS   (1<<LGCHUNKBITS)

Definition at line 299 of file crypt.c.

Referenced by init_perm(), and permute().

#define CRUNCH (   p0,
  p1,
  q0,
  q1 
)
Value:
k = ((q0) ^ (q1)) & SALT;       \
                        B.b32.i0 = k ^ (q0) ^ kp->b32.i0;               \
                        B.b32.i1 = k ^ (q1) ^ kp->b32.i1;               \
                        kp = (C_block *)((char *)kp+ks_inc);    \
                                                        \
                        DOXOR((p0), (p1), 0);           \
                        DOXOR((p0), (p1), 1);           \
                        DOXOR((p0), (p1), 2);           \
                        DOXOR((p0), (p1), 3);           \
                        DOXOR((p0), (p1), 4);           \
                        DOXOR((p0), (p1), 5);           \
                        DOXOR((p0), (p1), 6);           \
                        DOXOR((p0), (p1), 7);

Referenced by des_cipher().

#define DCL_BLOCK (   d,
  d0,
  d1 
)    long d0, d1

Definition at line 276 of file crypt.c.

Referenced by des_setkey(), and permute().

#define DOXOR (   x,
  y,
  i 
)    k=B.b[(i)]; (x)^=SPTAB(SPE[0][(i)],k); (y)^=SPTAB(SPE[1][(i)],k);
#define KS_SIZE   16

Definition at line 596 of file crypt.c.

Referenced by des_cipher().

#define LGCHUNKBITS   2

Definition at line 298 of file crypt.c.

Referenced by init_perm().

#define LOAD (   d,
  d0,
  d1,
  bl 
)    ((d0) = (bl).b32.i0, (d1) = (bl).b32.i1)

Definition at line 272 of file crypt.c.

Referenced by des_cipher().

#define LOADREG (   d,
  d0,
  d1,
  s,
  s0,
  s1 
)    ((d0) = (s0), (d1) = (s1))

Definition at line 273 of file crypt.c.

Referenced by des_cipher().

#define LONG_IS_32_BITS

Definition at line 88 of file crypt.c.

#define MUST_ALIGN

Definition at line 74 of file crypt.c.

#define OR (   d,
  d0,
  d1,
  bl 
)    ((d0) |= (bl).b32.i0, (d1) |= (bl).b32.i1)

Definition at line 274 of file crypt.c.

Referenced by permute().

#define PERM3264 (   d,
  d0,
  d1,
  cpp,
  p 
)    { C_block tblk; permute((cpp),&tblk,(p),4); LOAD ((d),(d0),(d1),tblk); }

Definition at line 302 of file crypt.c.

Referenced by des_cipher().

#define PERM6464 (   d,
  d0,
  d1,
  cpp,
  p 
)    { C_block tblk; permute((cpp),&tblk,(p),8); LOAD ((d),(d0),(d1),tblk); }

Definition at line 300 of file crypt.c.

Referenced by des_cipher(), and des_setkey().

#define SALT   salt
#define SPTAB (   t,
  i 
)    (*(long *)((unsigned char *)(t) + (i)*(sizeof(long)/4)))
#define STATIC   static

Definition at line 115 of file crypt.c.

#define STORE (   s,
  s0,
  s1,
  bl 
)    ((bl).b32.i0 = (s0), (bl).b32.i1 = (s1))

Definition at line 275 of file crypt.c.

Referenced by des_cipher(), des_setkey(), and permute().

#define TO_SIX_BIT (   rslt,
  src 
)
Value:
{                               \
                C_block cvt;                            \
                cvt.b[0] = (unsigned char)(src); (src) >>= 6; \
                cvt.b[1] = (unsigned char)(src); (src) >>= 6; \
                cvt.b[2] = (unsigned char)(src); (src) >>= 6; \
                cvt.b[3] = (unsigned char)(src);                \
                (rslt) = (cvt.b32.i0 & 0x3f3f3f3fL) << 2;       \
        }

Definition at line 259 of file crypt.c.

Referenced by des_cipher(), and init_des().

#define ZERO (   d,
  d0,
  d1 
)    ((d0) = 0, (d1) = 0)

Definition at line 271 of file crypt.c.

Referenced by permute().

Function Documentation

char* crypt ( const char *  key,
const char *  setting 
)

Definition at line 500 of file crypt.c.

References _PASSWORD_EFMT1, a64toi, C_block::b, constdatablock, cryptresult, des_cipher(), des_setkey(), itoa64, and NULL.

Referenced by rb_str_crypt().

int des_cipher ( )

Referenced by crypt(), and encrypt().

int des_cipher ( char *  in,
char *  out,
long  salt,
int  num_iter 
) const

Definition at line 638 of file crypt.c.

References B, C_block::b, CRUNCH, KS_SIZE, LOAD, LOADREG, PERM3264, PERM6464, R, R0, R1, STORE, and TO_SIX_BIT.

int des_setkey ( )

Referenced by crypt(), and setkey().

int des_setkey ( const char *  key)

Definition at line 603 of file crypt.c.

References DCL_BLOCK, init_des(), PERM6464, Rotates, and STORE.

int encrypt ( char *  block,
int  flag 
)

Definition at line 948 of file crypt.c.

References C_block::b, and des_cipher().

STATIC void init_des ( )

Definition at line 759 of file crypt.c.

References a64toi, CIFP, ExpandTr, init_perm(), IP, itoa64, P32Tr, PC1, PC2, Rotates, S, SPE, and TO_SIX_BIT.

Referenced by des_setkey().

STATIC void init_perm ( )

Referenced by init_des().

STATIC void init_perm ( perm  ,
p  ,
int  chars_in,
int  chars_out 
)

Definition at line 903 of file crypt.c.

References CHUNKBITS, and LGCHUNKBITS.

STATIC void permute ( )
STATIC void permute ( unsigned char *  cp,
C_block *  out,
C_block *  p,
int  chars_in 
)

Definition at line 306 of file crypt.c.

References CHUNKBITS, D, DCL_BLOCK, OR, STORE, and ZERO.

int setkey ( const char *  key)

Definition at line 927 of file crypt.c.

References C_block::b, and des_setkey().

Variable Documentation

unsigned char a64toi[128] [static]

Definition at line 471 of file crypt.c.

Referenced by crypt(), and init_des().

C_block CF6464[64/CHUNKBITS][1<< CHUNKBITS] [static]

Definition at line 486 of file crypt.c.

unsigned char CIFP[] [static]
Initial value:
 {              
         1,  2,  3,  4,   17, 18, 19, 20,
         5,  6,  7,  8,   21, 22, 23, 24,
         9, 10, 11, 12,   25, 26, 27, 28,
        13, 14, 15, 16,   29, 30, 31, 32,

        33, 34, 35, 36,   49, 50, 51, 52,
        37, 38, 39, 40,   53, 54, 55, 56,
        41, 42, 43, 44,   57, 58, 59, 60,
        45, 46, 47, 48,   61, 62, 63, 64,
}

Definition at line 452 of file crypt.c.

Referenced by init_des().

C_block constdatablock [static]

Definition at line 492 of file crypt.c.

Referenced by crypt().

char cryptresult[1+4+4+11+1] [static]

Definition at line 493 of file crypt.c.

Referenced by crypt().

unsigned char ExpandTr[] [static]
Initial value:
 {      
        32,  1,  2,  3,  4,  5,
         4,  5,  6,  7,  8,  9,
         8,  9, 10, 11, 12, 13,
        12, 13, 14, 15, 16, 17,
        16, 17, 18, 19, 20, 21,
        20, 21, 22, 23, 24, 25,
        24, 25, 26, 27, 28, 29,
        28, 29, 30, 31, 32,  1,
}

Definition at line 342 of file crypt.c.

Referenced by init_des().

C_block IE3264[32/CHUNKBITS][1<< CHUNKBITS] [static]

Definition at line 480 of file crypt.c.

unsigned char IP[] [static]
Initial value:
 {              
        58, 50, 42, 34, 26, 18, 10,  2,
        60, 52, 44, 36, 28, 20, 12,  4,
        62, 54, 46, 38, 30, 22, 14,  6,
        64, 56, 48, 40, 32, 24, 16,  8,
        57, 49, 41, 33, 25, 17,  9,  1,
        59, 51, 43, 35, 27, 19, 11,  3,
        61, 53, 45, 37, 29, 21, 13,  5,
        63, 55, 47, 39, 31, 23, 15,  7,
}

Definition at line 329 of file crypt.c.

Referenced by init_des().

unsigned char itoa64[] = "./0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz" [static]

Definition at line 464 of file crypt.c.

Referenced by crypt(), and init_des().

C_block KS[KS_SIZE] [static]

Definition at line 597 of file crypt.c.

unsigned char P32Tr[] [static]
Initial value:
 {      
        16,  7, 20, 21,
        29, 12, 28, 17,
         1, 15, 23, 26,
         5, 18, 31, 10,
         2,  8, 24, 14,
        32, 27,  3,  9,
        19, 13, 30,  6,
        22, 11,  4, 25,
}

Definition at line 441 of file crypt.c.

Referenced by init_des().

unsigned char PC1[] [static]
Initial value:
 {              
        57, 49, 41, 33, 25, 17,  9,
         1, 58, 50, 42, 34, 26, 18,
        10,  2, 59, 51, 43, 35, 27,
        19, 11,  3, 60, 52, 44, 36,

        63, 55, 47, 39, 31, 23, 15,
         7, 62, 54, 46, 38, 30, 22,
        14,  6, 61, 53, 45, 37, 29,
        21, 13,  5, 28, 20, 12,  4,
}

Definition at line 353 of file crypt.c.

Referenced by init_des().

C_block PC1ROT[64/CHUNKBITS][1<< CHUNKBITS] [static]

Definition at line 474 of file crypt.c.

unsigned char PC2[] [static]
Initial value:
 {              
         9, 18,    14, 17, 11, 24,  1,  5,
        22, 25,     3, 28, 15,  6, 21, 10,
        35, 38,    23, 19, 12,  4, 26,  8,
        43, 54,    16,  7, 27, 20, 13,  2,

         0,  0,    41, 52, 31, 37, 47, 55,
         0,  0,    30, 40, 51, 45, 33, 48,
         0,  0,    44, 49, 39, 56, 34, 53,
         0,  0,    46, 42, 50, 36, 29, 32,
}

Definition at line 370 of file crypt.c.

Referenced by init_des().

C_block PC2ROT[2][64/CHUNKBITS][1<< CHUNKBITS] [static]

Definition at line 477 of file crypt.c.

unsigned char Rotates[] [static]
Initial value:
 {      
        1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1,
}

Definition at line 365 of file crypt.c.

Referenced by des_setkey(), and init_des().

unsigned char S[8][64] [static]

Definition at line 382 of file crypt.c.

Referenced by init_des(), and ruby_dtoa().

long SPE[2][8][64] [static]

Definition at line 483 of file crypt.c.

Referenced by init_des().

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