Bitcoin Forum

$ ./pywallet.py 
A mandatory option is missing

Usage: pywallet.py [options]
[..]
  --importprivkey=KEY  import private key from vanitygen

$ ./pywallet.py --importprivkey=9MYaow1fLJHwaYgZVs6fLeALpTWuZY4zTA2NfFz8eMNQAiGQmzqeaHAYstXQ81vgVc
Bad private key

#!/bin/bash 

base58=({1..9} {A..H} {J..N} {P..Z} {a..k} {m..z})
bitcoinregex="^[$(printf "%s" "${base58}")]{34}$"

decodeBase58() {
    local s=$1
    for i in {0..57}
    do s="${s//${base58}/ $i}"
    done
    dc <<< "16o0d${s// /+58*}+f" 
}

encodeBase58() {
    # 58 = 0x3A
    bc <<<"ibase=16; n=${1^^}; while(n>0) { n%3A ; n/=3A }" |
    tac |
    while read n
    do echo -n ${base58[n]}
    done
}

checksum() {
    xxd -p -r <<<"$1" |
    openssl dgst -sha256 -binary |
    openssl dgst -sha256 -binary |
    xxd -p -c 80 |
    head -c 8
}

checkBitcoinAddress() {
    if [[ "$1" =~ $bitcoinregex ]]
    then
        h=$(decodeBase58 "$1")
        checksum "00${h::${#h}-8}" |
        grep -qi "^${h: -8}$"
    else return 2
    fi
}

hash160() {
    openssl dgst -sha256 -binary |
    openssl dgst -rmd160 -binary |
    xxd -p -c 80
}

hash160ToAddress() {
    printf "%34s\n" "$(encodeBase58 "00$1$(checksum "00$1")")" |
    sed "y/ /1/"
}

hash256ToAddress() {	
	#printf "80$1$(checksum "80$1")"
    printf "%34s\n" "$(encodeBase58 "80$1$(checksum "80$1")")" |
    sed "y/ /1/"
}

publicKeyToAddress() {
    hash160ToAddress $(
    openssl ec -pubin -pubout -outform DER |
    tail -c 65 |
    hash160
    )
}

privateKeyToWIF() {
    hash256ToAddress $(openssl ec -text -noout -in data.pem | head -5 | tail -3 | fmt -120 | sed 's/[: ]//g')
    
}

openssl  ecparam -genkey -name secp256k1 | tee data.pem &>/dev/null

sleep 3

echo " "
echo "BITCOINS OFF-THE-GRID (BOTG) : A VERY SECURE SAVINGS ACCOUNT!"
echo " "
echo "THE FOLLOWING WILL BE THE PRIVATE HEX KEY NEEDED TO ACCESS YOUR BITCOINS!"
echo "***RECORD THIS NUMBER CAREFULLY*** IT CONTAINS NUMBERS 0-9 AND LETTERS A-F."
echo "THIS WILL HELP SO YOU DON'T ACCIDENTALLY CONFUSE SIMILAR LOOKING DIGITS LATER ON!"
echo "KEEP THIS HEX KEY SAFE. HIDE IT AND/OR LOCK IT UP SOMEWHERE." 
echo "IT IS THE ONLY WAY TO ACCESS THE BTC IN THE FUTURE. WHOEVER HAS THAT HEX KEY"
echo "CAN SPEND YOUR MONEY. RECORD THE WHOLE LINE AFTER 'read EC key' "
echo " "
echo "ONLY USE THIS HEX KEY AND ADDRESS IF THIS SCRIPT WAS RUN OFF OF A LIVE CD WITH"
echo "NO INTERNET CONNECTION. REBOOT COMPUTER WHEN DONE TO CLEAR RAM."
echo "DO NOT COPY THIS HEX KEY ANYWHERE ONTO A COMPUTER."
echo " "



openssl ec -text -noout -in data.pem | head -5 | tail -3 | fmt -120 | sed 's/[: ]//g' 
privateKeyToWIF

sleep 2

echo " "
echo "THE FOLLOWING IS THE BITCOIN ADDRESS YOU CAN SEND YOUR SAVINGS TO."
echo "RECORD THE ADDRESS CAREFULLY. IT IS NOT CRITICAL YOU KEEP THIS ADDRESS"
echo "SECRET. THE HEX CODE AND THE WALLET-IMPORT-KEYCODE MUST REMAIN SECRET!"
echo "THE LINE THAT BEGINS WITH THE NUMBER 1 IS THE BITCOIN ADDRESS."
echo " "

openssl ec -pubout < data.pem | publicKeyToAddress


echo " "
echo "SPECIAL THANKS TO 'grondilu' AND 'unk' WHO MADE THIS SCRIPT POSSIBLE!!" 

        private string ByteArrayToBase58Check(byte[] ba) {
            // it is assumed that ba is 33 bytes long and starts with 0x80
            byte[] bb = new byte[ba.Length + 4];
            Array.Copy(ba, bb, ba.Length);
            SHA256CryptoServiceProvider sha256 = new SHA256CryptoServiceProvider();
            byte[] thehash = sha256.ComputeHash(ba);
            thehash = sha256.ComputeHash(thehash);
            for (int i = 0; i < 4; i++) bb[ba.Length + i] = thehash[i];
            return ByteArrayToBase58(bb);
        }

        private string ByteArrayToBase58(byte[] ba) {
            Org.BouncyCastle.Math.BigInteger addrremain = new Org.BouncyCastle.Math.BigInteger(1,ba);
            Org.BouncyCastle.Math.BigInteger big0 = new Org.BouncyCastle.Math.BigInteger("0");
            Org.BouncyCastle.Math.BigInteger big58 = new Org.BouncyCastle.Math.BigInteger("58");

            string b58 = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz";
            string rv = "";

            while (addrremain.CompareTo(big0) > 0) {
                int d = Convert.ToInt32(addrremain.Mod(big58).ToString());
                addrremain = addrremain.Divide(big58);
                rv = b58.Substring(d, 1) + rv;
            }

            // handle leading zeroes
            foreach (byte b in ba) {
                if (b != 0) break;
                rv = "1" + rv;
            }
            return rv;
        }

	char print_buf[512];
	// Notice this is the hex hash from above, and 0x80 (=128) prepended to it. I figured this out from encode_privkey.
	unsigned char hash1[33] = {128, 0x47,0x51,0x07,0x06,0xd7,0x6b,0xc7,0x4a,0x5d,0x57,0xbd,0xcf,0xfc,0x68,0xc9,0xbb,0xbc,0x2d,0x49,0x6b,0xef,0x87,0xc9,0x1d,0xe7,0xf6,0x16,0x12,0x9a,0xc6,0x2b,0x5f};

	encode_b58_check(hash1, sizeof(hash1), print_buf); // This actually computes sha256 twice, so that's why it was correct
	
	printf("privkey: %s\n", print_buf);

	parser.add_option("--b58encodestr", dest="keystr", 
		help="convert string to b58 key")

		#Take sha256 hash of key string
		priv_key = hashlib.sha256(options.keystr).digest()
		#Convert hash to bitcoin address
		priv_key = SecretToASecret(priv_key)
		print priv_key