├── README
├── example.php
└── lib
    ├── bitcoin_address.php
    └── botg.sh


/README:
--------------------------------------------------------------------------------
 1 | WARNING: not recommended for use. I don't know if the address generation is secure.
 2 | 
 3 | 
 4 | Check out example.php to see how to use this in practice. 
 5 | 
 6 | This library is really just one function which will return a private key and a public address in an associated array.
 7 | 
 8 | Example result of calling bitcoin_address_pair():
 9 | 
10 | Array
11 | (
12 |     [private] => KwFR8a14jDAX5V9N6yXNv9tsbMfJHgiWFgp9L3hTRF5K2kCuVwFB
13 |     [public] => 1KzWzshpyzS4Udmr2RLLTaiMNtPTKTRewh
14 | )
15 | 
16 | 


--------------------------------------------------------------------------------
/example.php:
--------------------------------------------------------------------------------
1 | <?
2 | include('lib/bitcoin_address.php');
3 | echo "<pre>\n";
4 | print_r(bitcoin_address_pair());


--------------------------------------------------------------------------------
/lib/bitcoin_address.php:
--------------------------------------------------------------------------------
 1 | <?php
 2 | function bitcoin_address_pair(){
 3 | 	$script =  dirname(__FILE__)."/botg.sh";
 4 | 	exec($script, $result);
 5 | 	$result = array_map('trim', $result);
 6 | 	$priv = $result[2];
 7 | 	$pub = $result[4];
 8 | 	return array('private'=>$priv, 'public'=>$pub);
 9 |   }
10 | 


--------------------------------------------------------------------------------
/lib/botg.sh:
--------------------------------------------------------------------------------
 1 | #!/bin/bash 
 2 | 
 3 | # this was derived from here: https://bitcointalk.org/index.php?topic=23081.20
 4 | # I simply slimmed it down so it could be used by a script -RobKohr
 5 | 
 6 | base58=({1..9} {A..H} {J..N} {P..Z} {a..k} {m..z})
 7 | bitcoinregex="^[$(printf "%s" "${base58}")]{34}$"
 8 | 
 9 | decodeBase58() {
10 |     local s=$1
11 |     for i in {0..57}
12 |     do s="${s//${base58}/ $i}"
13 |     done
14 |     dc <<< "16o0d${s// /+58*}+f" 
15 | }
16 | 
17 | encodeBase58() {
18 |     # 58 = 0x3A
19 |     bc <<<"ibase=16; n=${1^^}; while(n>0) { n%3A ; n/=3A }" |
20 |     tac |
21 |     while read n
22 |     do echo -n ${base58[n]}
23 |     done
24 | }
25 | 
26 | checksum() {
27 |     xxd -p -r <<<"$1" |
28 |     openssl dgst -sha256 -binary |
29 |     openssl dgst -sha256 -binary |
30 |     xxd -p -c 80 |
31 |     head -c 8
32 | }
33 | 
34 | checkBitcoinAddress() {
35 |     if [[ "$1" =~ $bitcoinregex ]]
36 |     then
37 |         h=$(decodeBase58 "$1")
38 |         checksum "00${h::${#h}-8}" |
39 |         grep -qi "^${h: -8}$"
40 |     else return 2
41 |     fi
42 | }
43 | 
44 | hash160() {
45 |     openssl dgst -sha256 -binary |
46 |     openssl dgst -rmd160 -binary |
47 |     xxd -p -c 80
48 | }
49 | 
50 | hash160ToAddress() {
51 |     printf "%34s\n" "$(encodeBase58 "00$1$(checksum "00$1")")" |
52 |     sed "y/ /1/"
53 | }
54 | 
55 | hash256ToAddress() {	
56 | 	#printf "80$1$(checksum "80$1")"
57 |     printf "%34s\n" "$(encodeBase58 "80$1$(checksum "80$1")")" |
58 |     sed "y/ /1/"
59 | }
60 | 
61 | publicKeyToAddress() {
62 |     hash160ToAddress $(
63 |     openssl ec -pubin -pubout -outform DER |
64 |     tail -c 65 |
65 |     hash160
66 |     )
67 | }
68 | 
69 | privateKeyToWIF() {
70 |     hash256ToAddress $(openssl ec -text -noout -in data.pem | head -5 | tail -3 | fmt -120 | sed 's/[: ]//g')
71 | }
72 | 
73 | openssl  ecparam -genkey -name secp256k1 | tee data.pem &>/dev/null
74 | openssl ec -text -noout -in data.pem | head -5 | tail -3 | fmt -120 | sed 's/[: ]//g' 
75 | echo "PrivateKey"
76 | privateKeyToWIF
77 | echo "PublicKey"
78 | openssl ec -pubout < data.pem | publicKeyToAddress
79 | rm data.pem
80 | 


--------------------------------------------------------------------------------