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[WIP] add groestl support to c-lightning #1

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Merged
merged 1 commit into from
Sep 12, 2018
Merged

[WIP] add groestl support to c-lightning #1

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4 changes: 4 additions & 0 deletions bitcoin/Makefile
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Original file line number Diff line number Diff line change
Expand Up @@ -5,12 +5,14 @@ BITCOIN_SRC := \
bitcoin/block.c \
bitcoin/chainparams.c \
bitcoin/locktime.c \
bitcoin/groestl.c \
bitcoin/privkey.c \
bitcoin/pubkey.c \
bitcoin/pullpush.c \
bitcoin/script.c \
bitcoin/shadouble.c \
bitcoin/short_channel_id.c \
bitcoin/sph_groestl.c \
bitcoin/signature.c \
bitcoin/tx.c \
bitcoin/varint.c
Expand All @@ -31,6 +33,8 @@ BITCOIN_HEADERS := bitcoin/address.h \
bitcoin/shadouble.h \
bitcoin/short_channel_id.h \
bitcoin/signature.h \
bitcoin/sph_groestl.h \
bitcoin/sph_types.h \
bitcoin/tx.h \
bitcoin/varint.h

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4 changes: 3 additions & 1 deletion bitcoin/base58.c
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Original file line number Diff line number Diff line change
Expand Up @@ -15,9 +15,11 @@
#include <libbase58.h>
#include <string.h>

extern void groestl_single_hash(void *, const void * , size_t len);

static bool my_sha256(void *digest, const void *data, size_t datasz)
{
sha256(digest, data, datasz);
groestl_single_hash((void *)&digest, (void *)data, datasz);
return true;
}

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71 changes: 71 additions & 0 deletions bitcoin/groestl.c
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Original file line number Diff line number Diff line change
@@ -0,0 +1,71 @@
#include <bitcoin/sph_groestl.h>
#include <bitcoin/sph_types.h>
#include <ccan/build_assert/build_assert.h>
#include <ccan/tal/str/str.h>
#include <common/utils.h>
#include <stdio.h>


void groestlhash(void *, const void *, size_t len);

void groestlhash(void *output, const void *input , size_t len)
{
uint32_t hash[16];
sph_groestl512_context ctx_1,ctx_2;

/*int ii;
printf("result input: ");
for (ii=0; ii < len; ii++)
{
printf ("%.2x",((uint8_t*)input)[ii]);
};
printf ("\n");
*/
sph_groestl512_init(&ctx_1);
sph_groestl512(&ctx_1, input, len);
sph_groestl512_close(&ctx_1, hash);

sph_groestl512_init(&ctx_2);
sph_groestl512(&ctx_2, hash, 64);
sph_groestl512_close(&ctx_2, hash);

memcpy(output, hash, 32);

/*
printf("result output: ");
for (ii=0; ii < 32; ii++)
{
printf ("%.2x",((uint8_t*)output)[ii]);
};
printf ("---\n");
for (ii=0; ii < 32; ii++)
{
printf ("%.2x",((uint8_t*)hash)[ii]);
};
printf ("\n");
*/
}


void groestl_single_hash(void *, const void *, size_t len);


void groestl_single_hash(void *output, const void *input , size_t len)
{
uint32_t hash[16];
sph_groestl512_context ctx;

sph_groestl512_init(&ctx);
sph_groestl512(&ctx, input, len);
sph_groestl512_close(&ctx, hash);
int ii;
printf("groestl ouput: ");
for (ii=0; ii < len; ii++)
{
printf ("%.2x",((uint8_t*)hash)[ii]);
};
memcpy(output, hash, 32);

}


6 changes: 4 additions & 2 deletions bitcoin/shadouble.c
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Original file line number Diff line number Diff line change
Expand Up @@ -2,15 +2,17 @@
#include <ccan/mem/mem.h>
#include <common/type_to_string.h>

extern void groestlhash(void *, const void * , size_t len);

void sha256_double(struct sha256_double *shadouble, const void *p, size_t len)
{
sha256(&shadouble->sha, memcheck(p, len), len);
sha256(&shadouble->sha, &shadouble->sha, sizeof(shadouble->sha));
groestlhash((void *)&shadouble->sha, (void *)p, len);
}

void sha256_double_done(struct sha256_ctx *shactx, struct sha256_double *res)
{
sha256_done(shactx, &res->sha);
sha256(&res->sha, &res->sha, sizeof(res->sha));
/* FIXME sha256(&res->sha, &res->sha, sizeof(res->sha)); */
}
REGISTER_TYPE_TO_HEXSTR(sha256_double);
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