ref: fc4a0118f7bec011b852264010d3ca64be22aebf
parent: 964b86fcd983ca345bb7f7a0e26c5814ec2e1333
author: aiju <[email protected]>
date: Fri Jun 8 20:10:14 EDT 2012
btc btc btc btc
--- a/sys/src/cmd/auth/factotum/ecdsa.c
+++ b/sys/src/cmd/auth/factotum/ecdsa.c
@@ -22,20 +22,16 @@
static int
decryptkey(Fsstate *fss, char *key, char *password)
{- uchar keyenc[53], hash[32], ivec[AESbsize];
+ uchar keyenc[53], hash[32];
AESstate s;
State *st;
- char buf[100];
if(base58dec(key, keyenc, 53) < 0)
return failure(fss, "invalid base58");
sha2_256((uchar *)password, strlen(password), hash, nil);
sha2_256(hash, 32, hash, nil);
- genrandom(ivec, sizeof ivec);
setupAESstate(&s, hash, 32, keyenc+37);
aesCBCdecrypt(keyenc, 37, &s);
- memset(buf, 0, sizeof buf);
- base58enc(keyenc, buf, 37);
if(keyenc[0] != 0x80)
return RpcNeedkey;
sha2_256(keyenc, 33, hash, nil);
--- /dev/null
+++ b/sys/src/cmd/btc/genkey.c
@@ -1,0 +1,133 @@
+#include <u.h>
+#include <libc.h>
+#include <mp.h>
+#include <libsec.h>
+
+ECdomain dom;
+
+void readln(char *prompt, char *line, int len, int raw);
+
+void
+address(ECpub *p, char *buf)
+{+ uchar buf1[65], buf2[25], buf3[25];
+
+ buf1[0] = 4;
+ buf3[0] = 0;
+ mptobe(p->x, buf1 + 1, 32, nil);
+ mptobe(p->y, buf1 + 33, 32, nil);
+ sha2_256(buf1, 65, buf2, nil);
+ ripemd160(buf2, 32, buf3 + 1, nil);
+ sha2_256(buf3, 21, buf2, nil);
+ sha2_256(buf2, 32, buf2, nil);
+ memcpy(buf3 + 21, buf2, 4);
+ memset(buf, 0, 100);
+ base58enc(buf3, buf, 25);
+}
+
+void
+pubkey(ECpub *b, char *buf)
+{+ uchar buf1[65];
+
+ buf1[0] = 4;
+ mptobe(b->x, buf1 + 1, 32, nil);
+ mptobe(b->y, buf1 + 33, 32, nil);
+ memset(buf, 0, 100);
+ base58enc(buf1, buf, 65);
+}
+
+void
+privkey(ECpriv *p, char *buf, char *pw)
+{+ uchar buf1[53], buf2[32];
+ AESstate st;
+
+ buf1[0] = 0x80;
+ mptobe(p->d, buf1 + 1, 32, nil);
+ sha2_256(buf1, 33, buf2, nil);
+ sha2_256(buf2, 32, buf2, nil);
+ memcpy(buf1 + 33, buf2, 4);
+ sha2_256((uchar *) pw, strlen(pw), buf2, nil);
+ sha2_256(buf2, 32, buf2, nil);
+ genrandom(buf1 + 37, 16);
+ setupAESstate(&st, buf2, 32, buf1+37);
+ aesCBCencrypt(buf1, 37, &st);
+ memset(buf, 0, 100);
+ base58enc(buf1, buf, 53);
+}
+
+void
+main()
+{+ ECpriv *p;
+ char addr[100], pub[100], priv[100], pw[256], pw2[256];
+
+ dom.p = strtomp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC2F", nil, 16, nil);+ dom.a = uitomp(0, nil);
+ dom.b = uitomp(7, nil);
+ dom.n = strtomp("FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141", nil, 16, nil);+ dom.h = uitomp(1, nil);
+ dom.G = strtoec(&dom, "0279BE667EF9DCBBAC55A06295CE870B07029BFCDB2DCE28D959F2815B16F81798", nil, nil);
+ p = ecgen(&dom, nil);
+ readln("password: ", pw, sizeof pw, 1);+ readln("repeat: ", pw2, sizeof pw2, 1);+ if(strcmp(pw, pw2) != 0)
+ sysfatal("passwords don't match");+ address(p, addr);
+ pubkey(p, pub);
+ privkey(p, priv, pw);
+ print("%s %s %s\n", addr, pub, priv);+}
+
+void
+readln(char *prompt, char *line, int len, int raw)
+{+ char *p;
+ int fdin, fdout, ctl, n, nr;
+
+ fdin = open("/dev/cons", OREAD);+ fdout = open("/dev/cons", OWRITE);+ fprint(fdout, "%s", prompt);
+ if(raw){+ ctl = open("/dev/consctl", OWRITE);+ if(ctl < 0)
+ sysfatal("couldn't set raw mode");+ write(ctl, "rawon", 5);
+ } else
+ ctl = -1;
+ nr = 0;
+ p = line;
+ for(;;){+ n = read(fdin, p, 1);
+ if(n < 0){+ close(ctl);
+ sysfatal("can't read cons\n");+ }
+ if(*p == 0x7f)
+ exits(0);
+ if(n == 0 || *p == '\n' || *p == '\r'){+ *p = '\0';
+ if(raw){+ write(ctl, "rawoff", 6);
+ write(fdout, "\n", 1);
+ }
+ close(ctl);
+ return;
+ }
+ if(*p == '\b'){+ if(nr > 0){+ nr--;
+ p--;
+ }
+ }else{+ nr++;
+ p++;
+ }
+ if(nr == len){+ fprint(fdout, "line too long; try again\n");
+ nr = 0;
+ p = line;
+ }
+ }
+}
--- a/sys/src/cmd/btc/mkfile
+++ b/sys/src/cmd/btc/mkfile
@@ -1,6 +1,6 @@
</$objtype/mkfile
-TARG=httpfs sign
+TARG=httpfs sign genkey
BIN=/$objtype/bin/btc
--- a/sys/src/cmd/btc/sign.c
+++ b/sys/src/cmd/btc/sign.c
@@ -39,7 +39,7 @@
uchar sc[10000];
};
-Biobuf *bp;
+Biobuf *bp, *bpout;
int nin, nout;
TxIn *in[0xFD];
@@ -272,6 +272,8 @@
bp = malloc(sizeof(*bp));
Binit(bp, 0, OREAD);
+ bpout = malloc(sizeof(*bpout));
+ Binit(bpout, 1, OWRITE);
linenum = 0;
for(;;){line = Brdstr(bp, '\n', 1);
@@ -337,14 +339,15 @@
}
n = serialize(buf, -1);
for(i = 0; i < n; i++){- print("%.2x", buf[i]);+ Bprint(bpout, "%.2x", buf[i]);
if((i%4)==3)
- print(" ");+ Bputc(bpout, ' ');
if((i%32)==31)
- print("\n");+ Bputc(bpout, '\n');
}
if((i%32)!=0)
- print("\n");+ Bputc(bpout, '\n');
+ Bterm(bpout);
}
Word words[] = {