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more btc stuff

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This commit is contained in:
aiju 2012-06-08 17:23:29 +02:00
parent a715d9ec94
commit 964b86fcd9
2 changed files with 23 additions and 6 deletions
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24
sys/src/cmd/btc/sign.c
View file

@ -153,6 +153,14 @@ doscript(char **args, int n, uchar *script, int *len, TxIn *ti)
free(b);
continue;
}
if(args[i][0] == '['){
k = strtol(args[i] + 1, &s, 0);
b = mallocz(k, 1);
hexdec(s+1, b, k);
pushdat(&scr, b, k);
free(b);
continue;
}
sysfatal("invalid word %s", args[i]);
next: ;
}
@ -183,6 +191,7 @@ serialize(uchar *buf, int sig)
s += ti->sclen;
}
if(sig == i){
varenc(ti->scoldlen, &s);
memcpy(s, ti->scold, ti->scoldlen);
s += ti->scoldlen;
}
@ -211,7 +220,7 @@ serialize(uchar *buf, int sig)
*s++ = 0;
*s++ = 0;
if(sig != -1){
*s++ = 0;
*s++ = 1;
*s++ = 0;
*s++ = 0;
*s++ = 0;
@ -254,7 +263,7 @@ main()
TxIn *ti;
Sig *si;
uchar hash[32];
uchar sig[100];
uchar sig[100], c;
afd = open("/mnt/factotum/rpc", ORDWR);
if(afd < 0)
@ -276,6 +285,11 @@ main()
if(tokenize(line, args, nelem(args)) != 2)
sysfatal("line %d: invalid data", linenum);
hexdec(args[0], ti->prev, 32);
for(n = 0; n < 16; n++){
c = ti->prev[n];
ti->prev[n] = ti->prev[31-n];
ti->prev[31-n] = c;
}
i = atoi(args[1]);
ti->prev[32] = i;
ti->prev[33] = i >> 8;
@ -314,8 +328,8 @@ main()
sha2_256(hash, 32, hash, nil);
for(si = ti->sig; si != nil; si = si->n){
sign(hash, ti->sig->priv, sig + 1, &n);
print("%d\n", n);
sig[0] = n++;
sig[0] = ++n;
sig[n++] = 1;
memmove(ti->sc + si->loc + n, ti->sc + si->loc, ti->sclen - si->loc);
memmove(ti->sc + si->loc, sig, n);
ti->sclen += n;
@ -329,7 +343,7 @@ main()
if((i%32)==31)
print("\n");
}
if((i%16)!=0)
if((i%32)!=0)
print("\n");
}

5
sys/src/libsec/port/ecc.c
View file

@ -514,6 +514,7 @@ base58dec(char *src, uchar *dst, int len)
{
mpint *n, *b, *r;
char *t;
int l;
n = mpnew(0);
r = mpnew(0);
@ -531,7 +532,9 @@ base58dec(char *src, uchar *dst, int len)
mpmul(n, b, n);
mpadd(n, r, n);
}
mptobe(n, dst, len, nil);
memset(dst, 0, len);
l = (mpsignif(n) + 7) / 8;
mptobe(n, dst + (len - l), l, nil);
mpfree(n);
mpfree(r);
mpfree(b);