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Merge pull request #1474 from Onek8/main
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Add missing fmt lib file
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RobDangerous authored Oct 8, 2023
2 parents a6546a6 + 9cf57ce commit 5373845
Showing 1 changed file with 271 additions and 0 deletions.
271 changes: 271 additions & 0 deletions Backends/Kinc-HL/hl/libs/fmt/fmt_crypto.c
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// (DK) this is a partial copy of fmt.c only containing the crypto code

#define HL_NAME(n) fmt_##n
#include <hl.h>

unsigned long adler32(unsigned long adler, const unsigned char *buf, unsigned int len);
unsigned long crc32(unsigned long crc, const unsigned char *buf, unsigned int len);

/* ------------------------------------------------- CRYPTO --------------------------------------------------- */

typedef unsigned int uint32;
typedef unsigned char uint8;

typedef struct {
uint32 total[2];
uint32 state[4];
uint8 buffer[64];
} md5_context;

#define GET_UINT32(n,b,i) \
{ \
(n) = ( (uint32) (b)[(i) ] ) \
| ( (uint32) (b)[(i) + 1] << 8 ) \
| ( (uint32) (b)[(i) + 2] << 16 ) \
| ( (uint32) (b)[(i) + 3] << 24 ); \
}

#define PUT_UINT32(n,b,i) \
{ \
(b)[(i) ] = (uint8) ( (n) ); \
(b)[(i) + 1] = (uint8) ( (n) >> 8 ); \
(b)[(i) + 2] = (uint8) ( (n) >> 16 ); \
(b)[(i) + 3] = (uint8) ( (n) >> 24 ); \
}

static void md5_starts( md5_context *ctx ) {
ctx->total[0] = 0;
ctx->total[1] = 0;
ctx->state[0] = 0x67452301;
ctx->state[1] = 0xEFCDAB89;
ctx->state[2] = 0x98BADCFE;
ctx->state[3] = 0x10325476;
}

static void md5_process( md5_context *ctx, uint8 data[64] ) {
uint32 X[16], A, B, C, D;
GET_UINT32( X[0], data, 0 );
GET_UINT32( X[1], data, 4 );
GET_UINT32( X[2], data, 8 );
GET_UINT32( X[3], data, 12 );
GET_UINT32( X[4], data, 16 );
GET_UINT32( X[5], data, 20 );
GET_UINT32( X[6], data, 24 );
GET_UINT32( X[7], data, 28 );
GET_UINT32( X[8], data, 32 );
GET_UINT32( X[9], data, 36 );
GET_UINT32( X[10], data, 40 );
GET_UINT32( X[11], data, 44 );
GET_UINT32( X[12], data, 48 );
GET_UINT32( X[13], data, 52 );
GET_UINT32( X[14], data, 56 );
GET_UINT32( X[15], data, 60 );

#define S(x,n) ((x << n) | ((x & 0xFFFFFFFF) >> (32 - n)))

#define P(a,b,c,d,k,s,t) \
{ \
a += F(b,c,d) + X[k] + t; a = S(a,s) + b; \
}

A = ctx->state[0];
B = ctx->state[1];
C = ctx->state[2];
D = ctx->state[3];

#define F(x,y,z) (z ^ (x & (y ^ z)))

P( A, B, C, D, 0, 7, 0xD76AA478 );
P( D, A, B, C, 1, 12, 0xE8C7B756 );
P( C, D, A, B, 2, 17, 0x242070DB );
P( B, C, D, A, 3, 22, 0xC1BDCEEE );
P( A, B, C, D, 4, 7, 0xF57C0FAF );
P( D, A, B, C, 5, 12, 0x4787C62A );
P( C, D, A, B, 6, 17, 0xA8304613 );
P( B, C, D, A, 7, 22, 0xFD469501 );
P( A, B, C, D, 8, 7, 0x698098D8 );
P( D, A, B, C, 9, 12, 0x8B44F7AF );
P( C, D, A, B, 10, 17, 0xFFFF5BB1 );
P( B, C, D, A, 11, 22, 0x895CD7BE );
P( A, B, C, D, 12, 7, 0x6B901122 );
P( D, A, B, C, 13, 12, 0xFD987193 );
P( C, D, A, B, 14, 17, 0xA679438E );
P( B, C, D, A, 15, 22, 0x49B40821 );

#undef F

#define F(x,y,z) (y ^ (z & (x ^ y)))

P( A, B, C, D, 1, 5, 0xF61E2562 );
P( D, A, B, C, 6, 9, 0xC040B340 );
P( C, D, A, B, 11, 14, 0x265E5A51 );
P( B, C, D, A, 0, 20, 0xE9B6C7AA );
P( A, B, C, D, 5, 5, 0xD62F105D );
P( D, A, B, C, 10, 9, 0x02441453 );
P( C, D, A, B, 15, 14, 0xD8A1E681 );
P( B, C, D, A, 4, 20, 0xE7D3FBC8 );
P( A, B, C, D, 9, 5, 0x21E1CDE6 );
P( D, A, B, C, 14, 9, 0xC33707D6 );
P( C, D, A, B, 3, 14, 0xF4D50D87 );
P( B, C, D, A, 8, 20, 0x455A14ED );
P( A, B, C, D, 13, 5, 0xA9E3E905 );
P( D, A, B, C, 2, 9, 0xFCEFA3F8 );
P( C, D, A, B, 7, 14, 0x676F02D9 );
P( B, C, D, A, 12, 20, 0x8D2A4C8A );

#undef F

#define F(x,y,z) (x ^ y ^ z)

P( A, B, C, D, 5, 4, 0xFFFA3942 );
P( D, A, B, C, 8, 11, 0x8771F681 );
P( C, D, A, B, 11, 16, 0x6D9D6122 );
P( B, C, D, A, 14, 23, 0xFDE5380C );
P( A, B, C, D, 1, 4, 0xA4BEEA44 );
P( D, A, B, C, 4, 11, 0x4BDECFA9 );
P( C, D, A, B, 7, 16, 0xF6BB4B60 );
P( B, C, D, A, 10, 23, 0xBEBFBC70 );
P( A, B, C, D, 13, 4, 0x289B7EC6 );
P( D, A, B, C, 0, 11, 0xEAA127FA );
P( C, D, A, B, 3, 16, 0xD4EF3085 );
P( B, C, D, A, 6, 23, 0x04881D05 );
P( A, B, C, D, 9, 4, 0xD9D4D039 );
P( D, A, B, C, 12, 11, 0xE6DB99E5 );
P( C, D, A, B, 15, 16, 0x1FA27CF8 );
P( B, C, D, A, 2, 23, 0xC4AC5665 );

#undef F

#define F(x,y,z) (y ^ (x | ~z))

P( A, B, C, D, 0, 6, 0xF4292244 );
P( D, A, B, C, 7, 10, 0x432AFF97 );
P( C, D, A, B, 14, 15, 0xAB9423A7 );
P( B, C, D, A, 5, 21, 0xFC93A039 );
P( A, B, C, D, 12, 6, 0x655B59C3 );
P( D, A, B, C, 3, 10, 0x8F0CCC92 );
P( C, D, A, B, 10, 15, 0xFFEFF47D );
P( B, C, D, A, 1, 21, 0x85845DD1 );
P( A, B, C, D, 8, 6, 0x6FA87E4F );
P( D, A, B, C, 15, 10, 0xFE2CE6E0 );
P( C, D, A, B, 6, 15, 0xA3014314 );
P( B, C, D, A, 13, 21, 0x4E0811A1 );
P( A, B, C, D, 4, 6, 0xF7537E82 );
P( D, A, B, C, 11, 10, 0xBD3AF235 );
P( C, D, A, B, 2, 15, 0x2AD7D2BB );
P( B, C, D, A, 9, 21, 0xEB86D391 );

#undef F

ctx->state[0] += A;
ctx->state[1] += B;
ctx->state[2] += C;
ctx->state[3] += D;
}

static void md5_update( md5_context *ctx, uint8 *input, uint32 length ) {
uint32 left, fill;
if( !length )
return;
left = ctx->total[0] & 0x3F;
fill = 64 - left;

ctx->total[0] += length;
ctx->total[0] &= 0xFFFFFFFF;

if( ctx->total[0] < length )
ctx->total[1]++;

if( left && length >= fill ) {
memcpy( (void *) (ctx->buffer + left),
(void *) input, fill );
md5_process( ctx, ctx->buffer );
length -= fill;
input += fill;
left = 0;
}

while( length >= 64 ) {
md5_process( ctx, input );
length -= 64;
input += 64;
}

if( length ) {
memcpy( (void *) (ctx->buffer + left),
(void *) input, length );
}
}

static uint8 md5_padding[64] =
{
0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
};

static void md5_finish( md5_context *ctx, uint8 digest[16] ) {
uint32 last, padn;
uint32 high, low;
uint8 msglen[8];

high = ( ctx->total[0] >> 29 )
| ( ctx->total[1] << 3 );
low = ( ctx->total[0] << 3 );

PUT_UINT32( low, msglen, 0 );
PUT_UINT32( high, msglen, 4 );

last = ctx->total[0] & 0x3F;
padn = ( last < 56 ) ? ( 56 - last ) : ( 120 - last );

md5_update( ctx, md5_padding, padn );
md5_update( ctx, msglen, 8 );

PUT_UINT32( ctx->state[0], digest, 0 );
PUT_UINT32( ctx->state[1], digest, 4 );
PUT_UINT32( ctx->state[2], digest, 8 );
PUT_UINT32( ctx->state[3], digest, 12 );
}

#include "sha1.h"

HL_PRIM void HL_NAME(digest)( vbyte *out, vbyte *in, int length, int format ) {
if( format & 256 ) {
in = (vbyte*)hl_to_utf8((uchar*)in);
length = (int)strlen((char*)in);
}
hl_blocking(true);
switch( format & 0xFF ) {
case 0:
{
md5_context ctx;
md5_starts(&ctx);
md5_update(&ctx,in,(uint32)length);
md5_finish(&ctx,out);
}
break;
case 1:
{
SHA1_CTX ctx;
sha1_init(&ctx);
sha1_update(&ctx,in,length);
sha1_final(&ctx,out);
}
break;
case 2:
*((int*)out) = crc32(*(int*)out, in, length);
break;
case 3:
*((int*)out) = adler32(*(int*)out, in, length);
break;
default:
hl_blocking(false);
hl_error("Unknown digest format %d",format&0xFF);
break;
}
hl_blocking(false);
}

DEFINE_PRIM(_VOID, digest, _BYTES _BYTES _I32 _I32);

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