niceBit

commit 5f88c05f9cc3b6b41a99016e5a2b134e5961095d
parent 9f9f7eabcda0cf46c35e4394f6c15c39fd78f3ce
Author: nicholasfarrow <nicholas.w.farrow@gmail.com>
Date:   Wed, 11 Dec 2019 12:19:14 +1100

first commit

Diffstat:
A
check_pub
 | 
0

A
check_pub.c
 | 
60
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
M
create_pubkey.h
 | 
19
++++++++++++++++---
M
ecdsa
 | 
0

M
ecdsa.c
 | 
11
++---------

5 files changed, 78 insertions(+), 12 deletions(-)
diff --git a/check_pub b/check_pub
Binary files differ.
diff --git a/check_pub.c b/check_pub.c
@@ -0,0 +1,60 @@
+#include <stdio.h>
+#include <string.h>
+#include <openssl/sha.h>
+ 
+const char *coin_err;
+#define bail(s) { coin_err = s; return 0; }
+ 
+int unbase58(const char *s, unsigned char *out) {
+	static const char *tmpl = "123456789"
+		"ABCDEFGHJKLMNPQRSTUVWXYZ"
+		"abcdefghijkmnopqrstuvwxyz";
+	int i, j, c;
+	const char *p;
+ 
+	memset(out, 0, 25);
+	for (i = 0; s[i]; i++) {
+		if (!(p = strchr(tmpl, s[i])))
+			bail("bad char");
+ 
+		c = p - tmpl;
+		for (j = 25; j--; ) {
+			c += 58 * out[j];
+			out[j] = c % 256;
+			c /= 256;
+		}
+ 
+		if (c) bail("address too long");
+	}
+ 
+	return 1;
+}
+ 
+int valid(const char *s) {
+	unsigned char dec[32], d1[SHA256_DIGEST_LENGTH], d2[SHA256_DIGEST_LENGTH];
+ 
+	coin_err = "";
+	if (!unbase58(s, dec)) return 0;
+ 
+	SHA256(SHA256(dec, 21, d1), SHA256_DIGEST_LENGTH, d2);
+ 
+	if (memcmp(dec + 21, d2, 4))
+		bail("bad digest");
+ 
+	return 1;
+}
+ 
+int main (void) {
+	const char *s[] = {
+		"1fVyBWPTYp8vMUePH99e61WJwz8pM9w3t3t",
+		"1JbdnHv5PT9yDy7zVmkVFaFaxGZeV6qoVC",
+		"1AGNa15ZQXAZUgFiqJ2i7Z2DPU2J6hW62I",
+		0 };
+	int i;
+	for (i = 0; s[i]; i++) {
+		int status = valid(s[i]);
+		printf("%s: %s\n", s[i], status ? "Ok" : coin_err);
+	}
+ 
+	return 0;
+}
diff --git a/create_pubkey.h b/create_pubkey.h
@@ -48,19 +48,32 @@ char* base58(byte *s, char *out) {
 	return out;
 }
  
+/*
 char *coin_encode(const char *x, const char *y, char *out) {
+*/
+char *coin_encode(const unsigned char *pubkey64, char *out) {
 	byte s[65];
 	byte rmd[5 + RIPEMD160_DIGEST_LENGTH];
- 
+ 	
+	/*
 	if (!is_hex(x) || !(is_hex(y))) {
 		coin_err = "bad public point string";
 		return 0;
 	}
- 
+ 	*/
+
 	s[0] = 4;
+
+	int j;	
+	for (j = 0; j < 64; j++) {
+		s[j+1] = pubkey64[j];
+	}
+
+	/*
 	str_to_byte(x, s + 1, 32);
 	str_to_byte(y, s + 33, 32);
- 
+ 	*/
+
 	rmd[0] = COIN_VER;
 	RIPEMD160(SHA256(s, 65, 0), SHA256_DIGEST_LENGTH, rmd + 1);
  
diff --git a/ecdsa b/ecdsa
Binary files differ.
diff --git a/ecdsa.c b/ecdsa.c
@@ -72,15 +72,8 @@ int main() {
                 printf("%02X", public_key64[i]);
         }
 	
-	char unsigned public_key32[33];
-	size_t pk32_len = sizeof(public_key32);
-
-        secp256k1_ec_pubkey_serialize(ctx, public_key32, &pk32_len, &pubkey, SECP256K1_EC_COMPRESSED);
-
-        printf("\n\nShort Public Key : ");
-        for(int i=0; i<33; i++) {
-                printf("%02X", public_key32[i]);
-        }
+	printf("\nPublic Address:1");
+	puts(coin_encode(public_key64, 0));
 
 	/*
 	&pubkeys[i]