Author

Topic: how to add "generate wallet address" option in my website.. please support (Read 292 times)

legendary
Activity: 1624
Merit: 2481
but what if we just add 3 coin as example "etn,xvg,xrp"
and when any user make a deposit , the system automatically convert this coins to btc market price and keep this amount in every user wallet.


1) If you want to implement the conversion yourself, you need to write a program doing the logic/calculations which uses the API commands available by the given exchanges to make the correct actions.
2) If you additionally want to implement the backend of your sending/receiving transactions part, you also need the full nodes installed and configured to accept RPC commands.

You can use an API instead, to get all information about incoming/outgoing transactions. Unfortunately you are relying on the service provider here and they charge a fee for this service.
If you don't want to implement 1) by yourself, you probably should use a payment processor. They are 'easier' to handle but involve trust + fee regarding the provider.
 
btj
member
Activity: 115
Merit: 16
thank you all for help
but what if we just add 3 coin as example "etn,xvg,xrp"
and when any user make a deposit , the system automatically convert this coins to btc market price and keep this amount in every user wallet.
until make purchase order.
i think i can do it manually with chat agent, but it will be huge load.
any one can create any system like that, i will be happy to pay for his time

Coinpayments.net already do that, you can accept XRP,ETH and all other altcoins and configure to receive automatically BTC or other coin.

You can set FROM and TO coin in your request.

But if you want use your own system, you have to get the rate of each coin (ETH,XVG,XRP, BTC), using any online API (CoinMarketCap for example).

And then:
Take example of ETH:
https://coinmarketcap.com/currencies/ethereum/
https://coinmarketcap.com/currencies/bitcoin/

Quote
1 ETH = 424,34$
1 BTC = 7 685,18$

Let's say you received 3ETH and you want calculate BTC:
Quote
BTC = (3 x ETH rate USD / BTC rate USD);
BTC = (3 x 424,34 / 7685,18) BTC;
BTC ~= 0.16564609 BTC

Here is API documentation of CoinMarketCap:
https://pro.coinmarketcap.com/api/v1

newbie
Activity: 3
Merit: 0
thank you all for help
but what if we just add 3 coin as example "etn,xvg,xrp"
and when any user make a deposit , the system automatically convert this coins to btc market price and keep this amount in every user wallet.
until make purchase order.
i think i can do it manually with chat agent, but it will be huge load.
any one can create any system like that, i will be happy to pay for his time
legendary
Activity: 1624
Merit: 2481
Accepting ANY coin will lead to a high volatility of your earnings.
People may place a small buy order for a shitcoin to pump the price by 200-300%. Then after paying you, they simply start selling their shitcoins again.

You effectively won't ever be able to sell your shitcoins for btc/USD because there is no liquidity.

I'd suggest you focus on the top 50 coins to accept. The easiest solution probably would be to find a payment processor, however creating a program to generate private keys, addresses and to query an API or check the blockchain shouldn't be too difficult to implement too, and would truly be decentralized as you wouldn't need to trust someone (e.g. payment processor).
btj
member
Activity: 115
Merit: 16
You have 2 options:
- Using an API service
- Make your own node for each coin (This will cost you many money to invest on servers nodes)

1- For API service, you can use blockchain.com API / Blocktrail.com / or any others to accept bitcoin payments.

But apparently you want accept many altcoins aswell, so i suggest you coinpayments.net, you can accept up to 60+ Altcoins using this service.

For that, you need to be familiar with blockchain technology and learn more about it in order to start accepting payments.

The services i purposed for you, let you integrate programmatically payment solution on your website, if you want only a donation widget ... you can make a quick google search, you will get some results about that.

2- Buy and configure each server for a paticular altcoin, in this case, your money is the factor that let you know how many altcoins you will be able to accept on your website, each altcoin/cryptocurrency have their own blockchain size ... so before buying any server you have to check if it's compatible with your altcoin and if the specifications of the server meet the requirments for that altcoin.

Once done, your developers must learn about JSON RPC connection and the commands required to generate, send, receive or ... coins using a specific node server.
sr. member
Activity: 386
Merit: 252
hello

Many sites offer to their users the option to generate a wallet address for a large number of currencies, especially at share masternode and POS sites.
I want to use this feature on my site to allow customers to pay with any coin they hae>
so, hope some one tell me how to add this feature, or the way it is implemented, because my programmers team have no experience with the blockchain.
hope some one help me
thanks

i used this code for bitcoin only, it will generate random bitcoin address and it's private key.
sure you have to store both in your site and keep the key safe.

code has 2 files, first is plugin includes code for generate.

PHPCoinAddress.php
Code:
/* ****************************************************************************

PHPCoinAddress is a PHP object that creates public/private address key pairs for:
Bitcoin, Namecoin, Litecoin, PPCoin and many other cryptocoins.

Version 0.2.0.pre

* Info: https://github.com/zamgo/PHPCoinAddress
* Download ZIP: https://github.com/zamgo/PHPCoinAddress/archive/master.zip
* Git clone: https://github.com/zamgo/PHPCoinAddress.git


****************************************************************************
Example Usage:

require_once 'PHPCoinAddress.php';
// CoinAddress::set_debug(true);      // optional - show debugging messages
// CoinAddress::set_reuse_keys(true); // optional - use same key for all addresses
$coin = CoinAddress::bitcoin();  
print 'public (base58): ' . $coin['public'] . "\n";
print 'public (Hex)   : ' . $coin['public_hex'] . "\n";
print 'private (WIF)  : ' . $coin['private'] . "\n";
print 'private (Hex)  : ' . $coin['private_hex'] . "\n"; 

****************************************************************************
Notes:
* modded from https://gist.github.com/scintill/3549107
* includes Pure PHP Elliptic Curve Cryptography Library from https://github.com/mdanter/phpecc
* Requires GMP or bcmath extension (GMP preferred for better performance)

****************************************************************************
MIT License:

Copyright (C) 2013 PHPCoinAddress Developers

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.

**************************************************************************** */

// START: Setup
if( defined('MAX_BASE') && MAX_BASE != 256 ) { 
    print 
'ERROR: MAX_BASE must be 256.'; exit;
} else {
    
define('MAX_BASE'256); // so we can use bcmath_Utils::bin2bc with "base256"
}
if (!
defined('USE_EXT')) {
    if (
extension_loaded('gmp')) {
        
define('USE_EXT''GMP');
    } else if(
extension_loaded('bcmath')) {
        
define('USE_EXT''BCMATH');
    } else {
        die(
'GMP or BCMATH required');
    }
}
// END: Setup

// START: PHP ECC Libs - Compacted

// originals @ https://github.com/mdanter/phpecc
/***********************************************************************
Copyright (C) 2012 Matyas Danter

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files (the "Software"),
to deal in the Software without restriction, including without limitation
the rights to use, copy, modify, merge, publish, distribute, sublicense,
and/or sell copies of the Software, and to permit persons to whom the
Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included
in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES
OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
OTHER DEALINGS IN THE SOFTWARE.
*************************************************************************/
// https://github.com/mdanter/phpecc/blob/master/classes/interface/CurveFpInterface.php
interface CurveFpInterface{public function __construct($prime,$a,$b);public function contains($x,$y);public function getA();public function getB();public function getPrime();public static function cmp(CurveFp$cp1,CurveFp$cp2);}
// https://github.com/mdanter/phpecc/blob/master/classes/CurveFp.php
class CurveFp implements CurveFpInterface{protected $a=0;protected $b=0;protected $prime=0;public function __construct($prime,$a,$b){$this->a=$a;$this->b=$b;$this->prime=$prime;}public function contains($x,$y){$eq_zero=null;if(extension_loaded('gmp')&&USE_EXT=='GMP'){$eq_zero=gmp_cmp(gmp_Utils::gmp_mod2(gmp_sub(gmp_pow($y,2),gmp_add(gmp_add(gmp_pow($x,3),gmp_mul($this->a,$x)),$this->b)),$this->prime),0);if($eq_zero==0){return true;}else{return false;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$eq_zero=bccomp(bcmod(bcsub(bcpow($y,2),bcadd(bcadd(bcpow($x,3),bcmul($this->a,$x)),$this->b)),$this->prime),0);if($eq_zero==0){return true;}else{return false;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public function getA(){return $this->a;}public function getB(){return $this->b;}public function getPrime(){return $this->prime;}public static function cmp(CurveFp$cp1,CurveFp$cp2){$same=null;if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(gmp_cmp($cp1->a,$cp2->a)==0&&gmp_cmp($cp1->b,$cp2->b)==0&&gmp_cmp($cp1->prime,$cp2->prime)==0){return 0;}else{return 1;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(bccomp($cp1->a,$cp2->a)==0&&bccomp($cp1->b,$cp2->b)==0&&bccomp($cp1->prime,$cp2->prime)==0){return 0;}else{return 1;}}else{throw new ErrorException("Please install BCMATH or GMP");}}}
// https://github.com/mdanter/phpecc/blob/master/classes/NumberTheory.php
class NumberTheory{public static function modular_exp($base,$exponent,$modulus){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if($exponent<0){return new ErrorException("Negative exponents (".$exponent.") not allowed");}else{$p=gmp_strval(gmp_powm($base,$exponent,$modulus));return $p;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if($exponent<0){return new ErrorException("Negative exponents (".$exponent.") not allowed");}else{$p=bcpowmod($base,$exponent,$modulus);return $p;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function polynomial_reduce_mod($poly,$polymod,$p){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(end($polymod)==1&&count($polymod)>1){while(count($poly)>=count($polymod)){if(end($poly)!=0){for($i=2;$i<count($polymod)+1;$i++){$poly[count($poly)-$i]=gmp_strval(gmp_Utils::gmp_mod2(gmp_sub($poly[count($poly)-$i],gmp_mul(end($poly),$polymod[count($polymod)-$i])),$p));}}$poly=array_slice($poly,0,count($poly)-1);}return $poly;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(end($polymod)==1&&count($polymod)>1){while(count($poly)>=count($polymod)){if(end($poly)!=0){for($i=2;$i<count($polymod)+1;$i++){$poly[count($poly)-$i]=bcmod(bcsub($poly[count($poly)-$i],bcmul(end($poly),$polymod[count($polymod)-$i])),$p);$poly=array_slice($poly,0,count($poly)-2);}}}return $poly;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function polynomial_multiply_mod($m1,$m2,$polymod,$p){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$prod=array();for($i=0;$i<count($m1);$i++){for($j=0;$j<count($m2);$j++){$index=$i+$j;if(!isset($prod[$index]))$prod[$index]=0;$prod[$index]=gmp_strval(gmp_Utils::gmp_mod2((gmp_add($prod[$index],gmp_mul($m1[$i],$m2[$j]))),$p));}}return self::polynomial_reduce_mod($prod,$polymod,$p);}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$prod=array();for($i=0;$i<count($m1);$i++){for($j=0;$j<count($m2);$j++){$index=$i+$j;$prod[$index]=bcmod((bcadd($prod[$index],bcmul($m1[$i],$m2[$j]))),$p);}}return self::polynomial_reduce_mod($prod,$polymod,$p);}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function polynomial_exp_mod($base,$exponent,$polymod,$p){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$s='';if(gmp_cmp($exponent,$p)<0){if(gmp_cmp($exponent,0)==0)return 1;$G=$base;$k=$exponent;if(gmp_cmp(gmp_Utils::gmp_mod2($k,2),1)==0)$s=$G;else$s=array(1);while(gmp_cmp($k,1)>0){$k=gmp_div($k,2);$G=self::polynomial_multiply_mod($G,$G,$polymod,$p);if(gmp_Utils::gmp_mod2($k,2)==1){$s=self::polynomial_multiply_mod($G,$s,$polymod,$p);}}return $s;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$s='';if($exponent<$p){if($exponent==0)return 1;$G=$base;$k=$exponent;if($k%2==1)$s=$G;else$s=array(1);while($k>1){$k=$k<<1;$G=self::polynomial_multiply_mod($G,$G,$polymod,$p);if($k%2==1){$s=self::polynomial_multiply_mod($G,$s,$polymod,$p);}}return $s;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function jacobi($a,$n){if(extension_loaded('gmp')&&USE_EXT=='GMP'){return gmp_strval(gmp_jacobi($a,$n));}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if($n>=3&&$n%2==1){$a=bcmod($a,$n);if($a==0)return 0;if($a==1)return 1;$a1=$a;$e=0;while(bcmod($a1,2)==0){$a1=bcdiv($a1,2);$e=bcadd($e,1);}if(bcmod($e,2)==0||bcmod($n,8)==1||bcmod($n,8)==7)$s=1;else$s=-1;if($a1==1)return $s;if(bcmod($n,4)==3&&bcmod($a1,4)==3)$s=-$s;return bcmul($s,self::jacobi(bcmod($n,$a1),$a1));}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function square_root_mod_prime($a,$p){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(0<=$a&&$a<$p&&1<$p){if($a==0)return 0;if($p==2)return $a;$jac=self::jacobi($a,$p);if($jac==-1)throw new SquareRootException($a." has no square root modulo ".$p);if(gmp_strval(gmp_Utils::gmp_mod2($p,4))==3)return self::modular_exp($a,gmp_strval(gmp_div(gmp_add($p,1),4)),$p);if(gmp_strval(gmp_Utils::gmp_mod2($p,8))==5){$d=self::modular_exp($a,gmp_strval(gmp_div(gmp_sub($p,1),4)),$p);if($d==1)return self::modular_exp($a,gmp_strval(gmp_div(gmp_add($p,3),8)),$p);if($d==$p-1)return gmp_strval(gmp_Utils::gmp_mod2(gmp_mul(gmp_mul(2,$a),self::modular_exp(gmp_mul(4,$a),gmp_div(gmp_sub($p,5),8),$p)),$p));}for($b=2;$b<$p;$b++){if(self::jacobi(gmp_sub(gmp_mul($b,$b),gmp_mul(4,$a)),$p)==-1){$f=array($a,-$b,1);$ff=self::polynomial_exp_mod(array(0,1),gmp_strval(gmp_div(gmp_add($p,1),2)),$f,$p);if(isset($ff[1])&&$ff[1]==0)return $ff[0];}}}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(0<=$a&&$a<$p&&1<$p){if($a==0)return 0;if($p==2)return $a;$jac=self::jacobi($a,$p);if($jac==-1)throw new SquareRootException($a." has no square root modulo ".$p);if(bcmod($p,4)==3)return self::modular_exp($a,bcdiv(bcadd($p,1),4),$p);if(bcmod($p,8)==5){$d=self::modular_exp($a,bcdiv(bcsub($p,1),4),$p);if($d==1)return self::modular_exp($a,bcdiv(bcadd($p,3),8),$p);if($d==$p-1)return(bcmod(bcmul(bcmul(2,$a),self::modular_exp(bcmul(4,$a),bcdiv(bcsub($p,5),8),$p)),$p));}for($b=2;$b<$p;$p++){if(self::jacobi(bcmul($b,bcsub($b,bcmul(4,$a))),$p)==-1){$f=array($a,-$b,1);$ff=self::polynomial_exp_mod(array(0,1),bcdiv(bcadd($p,1),2),$f,$p);if($ff[1]==0)return $ff[0];}}}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function inverse_mod($a,$m){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$inverse=gmp_strval(gmp_invert($a,$m));return $inverse;}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){while(bccomp($a,0)==-1){$a=bcadd($m,$a);}while(bccomp($m,$a)==-1){$a=bcmod($a,$m);}$c=$a;$d=$m;$uc=1;$vc=0;$ud=0;$vd=1;while(bccomp($c,0)!=0){$temp1=$c;$q=bcdiv($d,$c,0);$c=bcmod($d,$c);$d=$temp1;$temp2=$uc;$temp3=$vc;$uc=bcsub($ud,bcmul($q,$uc));$vc=bcsub($vd,bcmul($q,$vc));$ud=$temp2;$vd=$temp3;}$result='';if(bccomp($d,1)==0){if(bccomp($ud,0)==1)$result=$ud;else$result=bcadd($ud,$m);}else{throw new ErrorException("ERROR: $a and $m are NOT relatively prime.");}return $result;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function gcd2($a,$b){if(extension_loaded('gmp')&&USE_EXT=='GMP'){while($a){$temp=$a;$a=gmp_Utils::gmp_mod2($b,$a);$b=$temp;}return gmp_strval($b);}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){while($a){$temp=$a;$a=bcmod($b,$a);$b=$temp;}return $b;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function gcd($a){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(count($a)>1)return array_reduce($a,"self::gcd2",$a[0]);}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(count($a)>1)return array_reduce($a,"self::gcd2",$a[0]);}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function lcm2($a,$b){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$ab=gmp_strval(gmp_mul($a,$b));$g=self::gcd2($a,$b);$lcm=gmp_strval(gmp_div($ab,$g));return $lcm;}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$ab=bcmul($a,$b);$g=self::gcd2($a,$b);$lcm=bcdiv($ab,$g);return $lcm;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function lcm($a){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(count($a)>1)return array_reduce($a,"self::lcm2",$a[0]);}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(count($a)>1)return array_reduce($a,"self::lcm2",$a[0]);}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function factorization($n){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(is_int($n)||is_long($n)){if($n<2)returnarray();$result=array();$d=2;foreach(self::$smallprimes as$d){if($d>$n)break;$q=$n/$d;$r=$n%$d;if($r==0){$count=1;while($d<=$n){$n=$q;$q=$n/$d;$r=$n%$d;if($r!=0)break;$count++;}array_push($result,array($d,$count));}}if($n>end(self::$smallprimes)){if(is_prime($n)){array_push($result,array($n,1));}else{$d=end(self::$smallprimes);while(true){$d+=2;$q=$n/$d;$r=$n%$d;if($q<$d)break;if($r==0){$count=1;$n=$q;while($d<=n){$q=$n/$d;$r=$n%$d;if($r!=0)break;$n=$q;$count++;}array_push($result,array($n,1));}}}}return $result;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(is_int($n)||is_long($n)){if($n<2)returnarray();$result=array();$d=2;foreach(self::$smallprimes as$d){if($d>$n)break;$q=$n/$d;$r=$n%$d;if($r==0){$count=1;while($d<=$n){$n=$q;$q=$n/$d;$r=$n%$d;if($r!=0)break;$count++;}array_push($result,array($d,$count));}}if($n>end(self::$smallprimes)){if(is_prime($n)){array_push($result,array($n,1));}else{$d=end(self::$smallprimes);while(true){$d+=2;$q=$n/$d;$r=$n%$d;if($q<$d)break;if($r==0){$count=1;$n=$q;while($d<=n){$q=$n/$d;$r=$n%$d;if($r!=0)break;$n=$q;$count++;}array_push($result,array($n,1));}}}}return $result;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function phi($n){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(is_int($n)||is_long($n)){if($n<3)return 1;$result=1;$ff=self::factorization($n);foreach($ff as$f){$e=$f[1];if($e>1){$result=gmp_mul($result,gmp_mul(gmp_pow($f[0],gmp_sub($e,1)),gmp_sub($f[0],1)));}else{$result=gmp_mul($result,gmp_sub($f[0],1));}}return gmp_strval($result);}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(is_int($n)||is_long($n)){if($n<3)return 1;$result=1;$ff=self::factorization($n);foreach($ff as$f){$e=$f[1];if($e>1){$result=bcmul($result,bcmul(bcpow($f[0],bcsub($e,1)),bcsub($f[0],1)));}else{$result=bcmul($result,bcsub($f[0],1));}}return $result;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function carmichael($n){if(extension_loaded('gmp')&&USE_EXT=='GMP'){return self::carmichael_of_factorized(self::factorization($n));}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){return self::carmichael_of_factorized(self::factorization($n));}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function carmichael_of_factorized($f_list){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(count($f_list)<1)return 1;$result=self::carmichael_of_ppower($f_list[0]);for($i=1;$i<count($f_list);$i++){$result=lcm($result,self::carmichael_of_ppower($f_list[$i]));}return $result;}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(count($f_list)<1)return 1;$result=self::carmichael_of_ppower($f_list[0]);for($i=1;$i<count($f_list);$i++){$result=lcm($result,self::carmichael_of_ppower($f_list[$i]));}return $result;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function carmichael_of_ppower($pp){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$p=$pp[0];$a=$pp[1];if($p==2&&$a>2)return 1>>($a-2);else return gmp_strval(gmp_mul(($p-1),gmp_pow($p,($a-1))));}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$p=$pp[0];$a=$pp[1];if($p==2&&$a>2)return 1>>($a-2);else return bcmul(($p-1),bcpow($p,($a-1)));}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function order_mod($x,$m){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if($m<=1)return 0;if(gcd($x,m)==1){$z=$x;$result=1;while($z!=1){$z=gmp_strval(gmp_Utils::gmp_mod2(gmp_mul($z,$x),$m));$result=gmp_add($result,1);}return gmp_strval($result);}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if($m<=1)return 0;if(gcd($x,m)==1){$z=$x;$result=1;while($z!=1){$z=bcmod(bcmul($z,$x),$m);$result=bcadd($result,1);}return $result;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function largest_factor_relatively_prime($a,$b){if(extension_loaded('gmp')&&USE_EXT=='GMP'){while(true){$d=self::gcd($a,$b);if($d<=1)break;$b=$d;while(true){$q=$a/$d;$r=$a%$d;if($r>0)break;$a=$q;}}return $a;}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){while(true){$d=self::gcd($a,$b);if($d<=1)break;$b=$d;while(true){$q=$a/$d;$r=$a%$d;if($r>0)break;$a=$q;}}return $a;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function kinda_order_mod($x,$m){if(extension_loaded('gmp')&&USE_EXT=='GMP'){return self::order_mod($x,self::largest_factor_relatively_prime($m,$x));}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){return self::order_mod($x,self::largest_factor_relatively_prime($m,$x));}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function is_prime($n){if(extension_loaded('gmp')&&USE_EXT=='GMP'){return gmp_prob_prime($n);}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){self::$miller_rabin_test_count=0;$t=40;$k=0;$m=bcsub($n,1);while(bcmod($m,2)==0){$k=bcadd($k,1);$m=bcdiv($m,2);}for($i=0;$i<$t;$i++){$a=bcmath_Utils::bcrand(1,bcsub($n,1));$b0=self::modular_exp($a,$m,$n);if($b0!=1&&$b0!=bcsub($n,1)){$j=1;while($j<=$k-1&&$b0!=bcsub($n,1)){$b0=self::modular_exp($b0,2,$n);if($b0==1){self::$miller_rabin_test_count=$i+1;return false;}$j++;}if($b0!=bcsub($n,1)){self::$miller_rabin_test_count=$i+1;return false;}}}return true;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function next_prime($starting_value){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$result=gmp_strval(gmp_nextprime($starting_value));return $result;}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(bccomp($starting_value,2)==-1)return 2;$result=bcmath_Utils::bcor(bcadd($starting_value,1),1);while(!self::is_prime($result)){$result=bcadd($result,2);}return $result;}else{throw new ErrorException("Please install BCMATH or GMP");}}public static $miller_rabin_test_count;public static $smallprimes=array(2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97,101,103,107,109,113,127,131,137,139,149,151,157,163,167,173,179,181,191,193,197,199,211,223,227,229,233,239,241,251,257,263,269,271,277,281,283,293,307,311,313,317,331,337,347,349,353,359,367,373,379,383,389,397,401,409,419,421,431,433,439,443,449,457,461,463,467,479,487,491,499,503,509,521,523,541,547,557,563,569,571,577,587,593,599,601,607,613,617,619,631,641,643,647,653,659,661,673,677,683,691,701,709,719,727,733,739,743,751,757,761,769,773,787,797,809,811,821,823,827,829,839,853,857,859,863,877,881,883,887,907,911,919,929,937,941,947,953,967,971,977,983,991,997,1009,1013,1019,1021,1031,1033,1039,1049,1051,1061,1063,1069,1087,1091,1093,1097,1103,1109,1117,1123,1129,1151,1153,1163,1171,1181,1187,1193,1201,1213,1217,1223,1229);}
// https://github.com/mdanter/phpecc/blob/master/classes/interface/PointInterface.php
interface PointInterface{public function __construct(CurveFp$curve,$x,$y,$order=null);public static function cmp($p1,$p2);public static function add($p1,$p2);public static function mul($x2,Point$p1);public static function leftmost_bit($x);public static function rmul(Point$p1,$m);public function __toString();public static function double(Point$p1);public function getX();public function getY();public function getCurve();public function getOrder();}if(!defined('MAX_BASE'))define('MAX_BASE',128);
// https://github.com/mdanter/phpecc/blob/master/classes/Point.php
class Point implements PointInterface{public $curve;public $x;public $y;public $order;public static $infinity='infinity';public function __construct(CurveFp$curve,$x,$y,$order=null){$this->curve=$curve;$this->x=$x;$this->y=$y;$this->order=$order;if(isset($this->curve)&&($this->curve instanceof CurveFp)){if(!$this->curve->contains($this->x,$this->y)){throw new ErrorException("Curve".print_r($this->curve,true)." does not contain point ( ".$x." , ".$y." )");}if($this->order!=null){if(self::cmp(self::mul($order,$this),self::$infinity)!=0){throw new ErrorException("SELF * ORDER MUST EQUAL INFINITY.");}}}}public static function cmp($p1,$p2){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(!($p1 instanceof Point)){if(($p2 instanceof Point))return 1;if(!($p2 instanceof Point))return 0;}if(!($p2 instanceof Point)){if(($p1 instanceof Point))return 1;if(!($p1 instanceof Point))return 0;}if(gmp_cmp($p1->x,$p2->x)==0&&gmp_cmp($p1->y,$p2->y)==0&&CurveFp::cmp($p1->curve,$p2->curve)){return 0;}else{return 1;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(!($p1 instanceof Point)){if(($p2 instanceof Point))return 1;if(!($p2 instanceof Point))return 0;}if(!($p2 instanceof Point)){if(($p1 instanceof Point))return 1;if(!($p1 instanceof Point))return 0;}if(bccomp($p1->x,$p2->x)==0&&bccomp($p1->y,$p2->y)==0&&CurveFp::cmp($p1->curve,$p2->curve)){return 0;}else{return 1;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function add($p1,$p2){if(self::cmp($p2,self::$infinity)==0&&($p1 instanceof Point)){return $p1;}if(self::cmp($p1,self::$infinity)==0&&($p2 instanceof Point)){return $p2;}if(self::cmp($p1,self::$infinity)==0&&self::cmp($p2,self::$infinity)==0){return self::$infinity;}if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(CurveFp::cmp($p1->curve,$p2->curve)==0){if(gmp_Utils::gmp_mod2(gmp_cmp($p1->x,$p2->x),$p1->curve->getPrime())==0){if(gmp_Utils::gmp_mod2(gmp_add($p1->y,$p2->y),$p1->curve->getPrime())==0){return self::$infinity;}else{return self::double($p1);}}$p=$p1->curve->getPrime();$l=gmp_strval(gmp_mul(gmp_sub($p2->y,$p1->y),NumberTheory::inverse_mod(gmp_sub($p2->x,$p1->x),$p)));$x3=gmp_strval(gmp_Utils::gmp_mod2(gmp_sub(gmp_sub(gmp_pow($l,2),$p1->x),$p2->x),$p));$y3=gmp_strval(gmp_Utils::gmp_mod2(gmp_sub(gmp_mul($l,gmp_sub($p1->x,$x3)),$p1->y),$p));$p3=new Point($p1->curve,$x3,$y3);return $p3;}else{throw new ErrorException("The Elliptic Curves do not match.");}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(CurveFp::cmp($p1->curve,$p2->curve)==0){if(bcmod(bccomp($p1->x,$p2->x),$p1->curve->getPrime())==0){if(bcmod(bcadd($p1->y,$p2->y),$p1->curve->getPrime())==0){return self::$infinity;}else{return self::double($p1);}}$p=$p1->curve->getPrime();$l=bcmod(bcmul(bcsub($p2->y,$p1->y),NumberTheory::inverse_mod(bcsub($p2->x,$p1->x),$p)),$p);$x3=bcmod(bcsub(bcsub(bcpow($l,2),$p1->x),$p2->x),$p);$step0=bcsub($p1->x,$x3);$step1=bcmul($l,$step0);$step2=bcsub($step1,$p1->y);$step3=bcmod($step2,$p);$y3=bcmod(bcsub(bcmul($l,bcsub($p1->x,$x3)),$p1->y),$p);if(bccomp(0,$y3)==1)$y3=bcadd($p,$y3);$p3=new Point($p1->curve,$x3,$y3);return $p3;}else{throw new ErrorException("The Elliptic Curves do not match.");}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function mul($x2,Point$p1){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$e=$x2;if(self::cmp($p1,self::$infinity)==0){return self::$infinity;}if($p1->order!=null){$e=gmp_strval(gmp_Utils::gmp_mod2($e,$p1->order));}if(gmp_cmp($e,0)==0){return self::$infinity;}$e=gmp_strval($e);if(gmp_cmp($e,0)>0){$e3=gmp_mul(3,$e);$negative_self=new Point($p1->curve,$p1->x,gmp_strval(gmp_sub(0,$p1->y)),$p1->order);$i=gmp_div(self::leftmost_bit($e3),2);$result=$p1;while(gmp_cmp($i,1)>0){$result=self::double($result);if(gmp_cmp(gmp_and($e3,$i),0)!=0&&gmp_cmp(gmp_and($e,$i),0)==0){$result=self::add($result,$p1);}if(gmp_cmp(gmp_and($e3,$i),0)==0&&gmp_cmp(gmp_and($e,$i),0)!=0){$result=self::add($result,$negative_self);}$i=gmp_strval(gmp_div($i,2));}return $result;}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$e=$x2;if(self::cmp($p1,self::$infinity)==0){return self::$infinity;}if($p1->order!=null){$e=bcmod($e,$p1->order);}if(bccomp($e,0)==0){return self::$infinity;}if(bccomp($e,0)==1){$e3=bcmul(3,$e);$negative_self=new Point($p1->curve,$p1->x,bcsub(0,$p1->y),$p1->order);$i=bcdiv(self::leftmost_bit($e3),2);$result=$p1;while(bccomp($i,1)==1){$result=self::double($result);if(bccomp(bcmath_Utils::bcand($e3,$i),'0')!=0&&bccomp(bcmath_Utils::bcand($e,$i),'0')==0){$result=self::add($result,$p1);}if(bccomp(bcmath_Utils::bcand($e3,$i),0)==0&&bccomp(bcmath_Utils::bcand($e,$i),0)!=0){$result=self::add($result,$negative_self);}$i=bcdiv($i,2);}return $result;}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function leftmost_bit($x){if(extension_loaded('gmp')&&USE_EXT=='GMP'){if(gmp_cmp($x,0)>0){$result=1;while(gmp_cmp($result,$x)<0||gmp_cmp($result,$x)==0){$result=gmp_mul(2,$result);}return gmp_strval(gmp_div($result,2));}}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(bccomp($x,0)==1){$result=1;while(bccomp($result,$x)==-1||bccomp($result,$x)==0){$result=bcmul(2,$result);}return bcdiv($result,2);}}else{throw new ErrorException("Please install BCMATH or GMP");}}public static function rmul(Point$x1,$m){return self::mul($m,$x1);}public function __toString(){if(!($this instanceof Point)&&$this==self::$infinity)return self::$infinity;return"(".$this->x.",".$this->y.")";}public static function double(Point$p1){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$p=$p1->curve->getPrime();$a=$p1->curve->getA();$inverse=NumberTheory::inverse_mod(gmp_strval(gmp_mul(2,$p1->y)),$p);$three_x2=gmp_mul(3,gmp_pow($p1->x,2));$l=gmp_strval(gmp_Utils::gmp_mod2(gmp_mul(gmp_add($three_x2,$a),$inverse),$p));$x3=gmp_strval(gmp_Utils::gmp_mod2(gmp_sub(gmp_pow($l,2),gmp_mul(2,$p1->x)),$p));$y3=gmp_strval(gmp_Utils::gmp_mod2(gmp_sub(gmp_mul($l,gmp_sub($p1->x,$x3)),$p1->y),$p));if(gmp_cmp(0,$y3)>0)$y3=gmp_strval(gmp_add($p,$y3));$p3=new Point($p1->curve,$x3,$y3);return $p3;}elseif(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$p=$p1->curve->getPrime();$a=$p1->curve->getA();$inverse=NumberTheory::inverse_mod(bcmul(2,$p1->y),$p);$three_x2=bcmul(3,bcpow($p1->x,2));$l=bcmod(bcmul(bcadd($three_x2,$a),$inverse),$p);$x3=bcmod(bcsub(bcpow($l,2),bcmul(2,$p1->x)),$p);$y3=bcmod(bcsub(bcmul($l,bcsub($p1->x,$x3)),$p1->y),$p);if(bccomp(0,$y3)==1)$y3=bcadd($p,$y3);$p3=new Point($p1->curve,$x3,$y3);return $p3;}else{throw new ErrorException("Please install BCMATH or GMP");}}public function getX(){return $this->x;}public function getY(){return $this->y;}public function getCurve(){return $this->curve;}public function getOrder(){return $this->order;}}
// https://github.com/mdanter/phpecc/blob/master/classes/util/bcmath_Utils.php
class bcmath_Utils{public static function bcrand($min,$max=false){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){if(!$max){$max=$min;$min=0;}return bcadd(bcmul(bcdiv(mt_rand(0,mt_getrandmax()),mt_getrandmax(),strlen($max)),bcsub(bcadd($max,1),$min)),$min);}else{throw new ErrorException("Please install BCMATH");}}public static function bchexdec($hex){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$len=strlen($hex);$dec='';for($i=1;$i<=$len;$i++)$dec=bcadd($dec,bcmul(strval(hexdec($hex[$i-1])),bcpow('16',strval($len-$i))));return $dec;}else{throw new ErrorException("Please install BCMATH");}}public static function bcdechex($dec){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){$hex='';$positive=$dec<0?false:true;while($dec){$hex.=dechex(abs(bcmod($dec,'16')));$dec=bcdiv($dec,'16',0);}if($positive)return strrev($hex);for($i=0;$isset($hex[$i]);$i++)$hex[$i]=dechex(15-hexdec($hex[$i]));for($i=0;isset($hex[$i])&&$hex[$i]=='f';$i++)$hex[$i]='0';if(isset($hex[$i]))$hex[$i]=dechex(hexdec($hex[$i])+1);return strrev($hex);}else{throw new ErrorException("Please install BCMATH");}}public static function bcand($x,$y){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){return self::_bcbitwise_internal($x,$y,'bcmath_Utils::_bcand');}else{throw new ErrorException("Please install BCMATH");}}public static function bcor($x,$y){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){return self::_bcbitwise_internal($x,$y,'self::_bcor');}else{throw new ErrorException("Please install BCMATH");}}public static function bcxor($x,$y){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){return self::_bcbitwise_internal($x,$y,'self::_bcxor');}else{throw new ErrorException("Please install BCMATH");}}public static function bcleftshift($num,$shift){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){bcscale(0);return bcmul($num,bcpow(2,$shift));}else{throw new ErrorException("Please install BCMATH");}}public static function bcrightshift($num,$shift){if(extension_loaded('bcmath')&&USE_EXT=='BCMATH'){bcscale(0);return bcdiv($num,bcpow(2,$shift));}else{throw new ErrorException("Please install BCMATH");}}public static function _bcand($x,$y){return $x&$y;}public static function _bcor($x,$y){return $x|$y;}public static function _bcxor($x,$y){return $x^$y;}public static function _bcbitwise_internal($x,$y,$op){$bx=self::bc2bin($x);$by=self::bc2bin($y);self::equalbinpad($bx,$by);$ix=0;$ret='';for($ix=0;$ix<strlen($bx);$ix++){$xd=substr($bx,$ix,1);$yd=substr($by,$ix,1);$ret.=call_user_func($op,$xd,$yd);}return self::bin2bc($ret);}public static function bc2bin($num){return self::dec2base($num,MAX_BASE);}public static function bin2bc($num){return self::base2dec($num,MAX_BASE);}public static function dec2base($dec,$base,$digits=FALSE){if(extension_loaded('bcmath')){if($base<2||$base>256)die("Invalid Base: ".$base);bcscale(0);$value="";if(!$digits)$digits=self::digits($base);while($dec>$base-1){$rest=bcmod($dec,$base);$dec=bcdiv($dec,$base);$value=$digits[$rest].$value;}$value=$digits[intval($dec)].$value;return(string)$value;}else{throw new ErrorException("Please install BCMATH");}}public static function base2dec($value,$base,$digits=FALSE){if(extension_loaded('bcmath')){if($base<2||$base>256)die("Invalid Base: ".$base);bcscale(0);if($base<37)$value=strtolower($value);if(!$digits)$digits=self::digits($base);$size=strlen($value);$dec="0";for($loop=0;$loop<$size;$loop++){$element=strpos($digits,$value[$loop]);$power=bcpow($base,$size-$loop-1);$dec=bcadd($dec,bcmul($element,$power));}return(string)$dec;}else{throw new ErrorException("Please install BCMATH");}}public static function digits($base){if($base>64){$digits="";for($loop=0;$loop<256;$loop++){$digits.=chr($loop);}}else{$digits="0123456789abcdefghijklmnopqrstuvwxyz";$digits.="ABCDEFGHIJKLMNOPQRSTUVWXYZ-_";}$digits=substr($digits,0,$base);return(string)$digits;}public static function equalbinpad(&$x,&$y){$xlen=strlen($x);$ylen=strlen($y);$length=max($xlen,$ylen);self::fixedbinpad($x,$length);self::fixedbinpad($y,$length);}public static function fixedbinpad(&$num,$length){$pad='';for($ii=0;$ii<$length-strlen($num);$ii++){$pad.=self::bc2bin('0');}$num=$pad.$num;}}
// https://github.com/mdanter/phpecc/blob/master/classes/util/gmp_Utils.php
class gmp_Utils {public static function gmp_mod2($n,$d){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$res=gmp_div_r($n,$d);if(gmp_cmp(0,$res)>0){$res=gmp_add($d,$res);}return gmp_strval($res);} else {throw new Exception("PLEASE INSTALL GMP");}}public static function gmp_random($n){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$random=gmp_strval(gmp_random());$small_rand=rand();while(gmp_cmp($random,$n)>0){$random=gmp_div($random,$small_rand,GMP_ROUND_ZERO);}return gmp_strval($random);}else{throw new Exception("PLEASE INSTALL GMP");}}public static function gmp_hexdec($hex){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$dec=gmp_strval(gmp_init($hex),10);return $dec;}else{throw new Exception("PLEASE INSTALL GMP");}}public static function gmp_dechex($dec){if(extension_loaded('gmp')&&USE_EXT=='GMP'){$hex=gmp_strval(gmp_init($dec),16);return $hex;}else{throw new Exception("PLEASE INSTALL GMP");}}}

// END: PHP ECC Libs - Compacted

// START: CoinAddress class

///////////////////////////////////////////////////////////////////////////////////////////////////////
class CoinAddress {

    public static 
$debug;
    public static 
$reuse_keys;
    public static 
$secp256k1;
    public static 
$secp256k1_G;
    public static 
$key_pair_private;
    public static 
$key_pair_private_hex;
    public static 
$key_pair_public;
    public static 
$key_pair_public_hex;
    public static 
$key_pair_compressed_private;
    public static 
$key_pair_compressed_private_hex;
    public static 
$key_pair_compressed_public;
    public static 
$key_pair_compressed_public_hex;    
    public static 
$prefix_private;
    public static 
$prefix_public;

    
//////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function set_debug$s='' ) { if( $s ) { self::$debug true; } else { self::$debug false; } }
    public static function 
set_reuse_keys$s='' ) { if( $s ) { self::$reuse_keys trueself::debug('set_reuse_keys: true'); } else { self::$reuse_keys false; } }

    
//////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function bitcoin() {  self::$prefix_public '0x00'self::$prefix_private '0x80'; return self::get_address(); }
    public static function 
bbqcoin() {  self::$prefix_public '0x05'self::$prefix_private '0xD5'; return self::get_address(); }
    public static function 
bitbar() {   self::$prefix_public '0x19'self::$prefix_private '0x99'; return self::get_address(); }
    public static function 
bytecoin() { self::$prefix_public '0x12'self::$prefix_private '0x80'; return self::get_address(); }
    public static function 
chncoin() {  self::$prefix_public '0x1C'self::$prefix_private '0x9C'; return self::get_address(); }
    public static function 
devcoin() {  return self::bitcoin(); }
    
//public static function fairbrix() { self::$prefix_public = '0x??'; self::$prefix_private = '0x??'; return self::get_address(); }
    
public static function feathercoin() { self::$prefix_public '0x0E'self::$prefix_private '0x8E'; return self::get_address(); }
    public static function 
freicoin() { return self::bitcoin(); }
    
//public static function ixcoin() { self::$prefix_public = '0x??'; self::$prefix_private = '0x??'; return self::get_address(); }
    
public static function junkcoin() { self::$prefix_public '0x10'self::$prefix_private '0x90'; return self::get_address(); }
    public static function 
litecoin() { self::$prefix_public '0x30'self::$prefix_private '0xB0'; return self::get_address(); }
    public static function 
mincoin() {  self::$prefix_public '0x32'self::$prefix_private '0xB2'; return self::get_address(); }    
    public static function 
namecoin() { self::$prefix_public '0x34'self::$prefix_private '0xB4'; return self::get_address(); }
    public static function 
novacoin() { self::$prefix_public '0x08'self::$prefix_private '0x88'; return self::get_address(); }
    public static function 
onecoin() {  self::$prefix_public '0x73'self::$prefix_private '0xF3'; return self::get_address(); }
    public static function 
ppcoin() {   self::$prefix_public '0x37'self::$prefix_private '0xB7'; return self::get_address(); }
    
//public static function royalcoin() { self::$prefix_public = '0x??'; self::$prefix_private = '0x??'; return self::get_address(); }
    
public static function smallchange() { self::$prefix_public '0x3E';  self::$prefix_private '0xBE'; return self::get_address(); }
    public static function 
terracoin() { return self::bitcoin(); }
    public static function 
yacoin() { self::$prefix_public '0x4D'self::$prefix_private '0xCD'; return self::get_address(); }


    
//////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function bitcoin_testnet() { self::$prefix_public '0x6F'self::$prefix_private '0xEF'; return self::get_address(); }
    public static function 
bbqcoin_testnet() { self::$prefix_public '0x19'self::$prefix_private '0x99'; return self::get_address(); }
    public static function 
bitbar_testnet() {  self::$prefix_public '0x73'self::$prefix_private '0xF3'; return self::get_address(); }
    public static function 
bytecoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
chncoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
devcoin_testnet() { return self::bitcoin_testnet(); }
    
//public static function fairbrix_testnet() { return self::bitcoin_testnet(); }
    
public static function feathercoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
freicoin_testnet() { return self::bitcoin_testnet(); }
    
//public static function ixcoin_testnet() { return self::bitcoin_testnet(); }
    
public static function junkcoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
litecoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
mincoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
namecoin_testnet() { return self::bitcoin_testnet(); } // ??
    
public static function novacoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
onecoin_testnet() { return self::bitcoin_testnet(); }
    public static function 
ppcoin_testnet() { return self::bitcoin_testnet(); }
    
//public static function royalcoin_testnet(){ return self::bitcoin_testnet(); }
    
public static function smallchange_testnet(){ return self::bitcoin_testnet(); }
    public static function 
terracoin_testnet(){ return self::bitcoin_testnet(); }
    public static function 
yacoin_testnet(){ return self::bitcoin_testnet(); }

    
//////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function generic$prefix_public=''$prefix_private='' ) {
        
self::debug("generic: public:$prefix_public private:$prefix_private");
        if( !
$prefix_public || !$prefix_private ) { print 'ERROR'; exit; } // need better error checking here...
        
self::$prefix_public $prefix_public;
        
self::$prefix_private $prefix_private;
        return 
self::get_address();
    }

    
//////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function get_address() {
        if( !
self::$prefix_public || !self::$prefix_private ) { print 'ERROR'; exit; } // need better error checking here...
        
self::debug('get_address: prefix: public:' self::$prefix_public ' private:' self::$prefix_private);
        
self::setup();
        if( !
self::$key_pair_public || !self::$key_pair_private ) {
            
self::create_key_pair();
        } elseif ( !
self::$reuse_keys ) {
            
self::create_key_pair();
        }
        return array(
           
'public'      => self::base58check_encodeself::$prefix_public,  self::$key_pair_public ),
           
'public_hex'  => self::$key_pair_public_hex,
           
'private'     => self::base58check_encodeself::$prefix_privateself::$key_pair_private ),
           
'private_hex' => self::$key_pair_private_hex,

           
'public_compressed'      => self::base58check_encodeself::$prefix_public,  self::$key_pair_compressed_public ),
           
'public_compressed_hex'  => self::$key_pair_compressed_public_hex,
           
'private_compressed'     => self::$key_pair_compressed_private,
           
'private_compressed_hex' => self::$key_pair_compressed_private_hex,
        );
    } 
// end get_address

    //////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function debug($m='') { if( !self::$debug ) { return; } echo "DEBUG: ",  print_r($m,1), "\n"; }

    
//////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function setup() {
        
self::debug('setup: USE_EXT: ' USE_EXT);
        if( !isset(
self::$secp256k1) ) {
            
self::$secp256k1 = new CurveFp(
            
'115792089237316195423570985008687907853269984665640564039457584007908834671663''0''7');
        }
        if( !isset(
self::$secp256k1_G) ) {
            
self::$secp256k1_G = new Point(self::$secp256k1,
            
'55066263022277343669578718895168534326250603453777594175500187360389116729240',
            
'32670510020758816978083085130507043184471273380659243275938904335757337482424',
            
'115792089237316195423570985008687907852837564279074904382605163141518161494337');
        }
    } 
// END setup

    //////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function create_key_pair() {

        
$privBin '';
        for (
$i 0$i 32$i++) { $privBin .= chr(mt_rand(0$i 0xff 0xfe)); }
        
$point Point::mul(bcmath_Utils::bin2bc("\x00" $privBin), self::$secp256k1_G);

        
$pubBinStr "\x04" str_pad(bcmath_Utils::bc2bin($point->getX()), 32"\x00"STR_PAD_LEFT)
            . 
str_pad(bcmath_Utils::bc2bin($point->getY()), 32"\x00"STR_PAD_LEFT);

        
$pubBinStrCompressed = (intval(substr($point->getY(), -11)) % == "\x02" "\x03")
            . 
str_pad(bcmath_Utils::bc2bin($point->getX()), 32"\x00"STR_PAD_LEFT);

        
self::$key_pair_public hash('ripemd160'hash('sha256'$pubBinStrtrue), true);
        
self::$key_pair_public_hex bin2hex($pubBinStr);
        
self::$key_pair_private $privBin;
        
self::$key_pair_private_hex bin2hex($privBin);

        
self::$key_pair_compressed_public hash('ripemd160'hash('sha256'$pubBinStrCompressedtrue), true);
        
self::$key_pair_compressed_public_hex bin2hex($pubBinStrCompressed);
        
self::$key_pair_compressed_private self::base58check_encode(self::$prefix_private$privBin0x01);
        
self::$key_pair_compressed_private_hex self::$key_pair_private_hex;

    } 
// end create_key_pair

    //////////////////////////////////////////////////////////////////////////////////////////////////////////
    // modded from https://en.bitcoin.it/wiki/Base58Check_encoding
    
public static function base58check_encode($leadingByte$bin$trailingByte null) {
        
$bin chr($leadingByte) . $bin;
        if (
$trailingByte !== null) { $bin .= chr($trailingByte); }
        
$checkSum substr(hash('sha256'hash('sha256'$bintrue), true), 04);
        
$bin .= $checkSum;
        
$base58 self::base58_encode(bcmath_Utils::bin2bc($bin));
        for (
$i 0$i strlen($bin); $i++) { // for each leading zero-byte, pad base58 with "1"
            
if ($bin[$i] != "\x00") { break; }
            
$base58 '1' $base58;
        }
        return 
$base58;
    } 
// end base58check_encode

    //////////////////////////////////////////////////////////////////////////////////////////////////////////
    
public static function base58_encode($num) {
        return 
bcmath_Utils::dec2base($num58'123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz');
    } 
// end base58_encode

}
// END PHPCoinAddress


This file will call command from the first file, it will print new address every time you open this file.

wallet.php
Code:
$version '0.2.0.pre';

require_once(
'PHPCoinAddress.php');
CoinAddress::set_debug(false);
CoinAddress::set_reuse_keys(true);

// START TEST

//for ($x = 0; $x <= 50; $x++) {
$coin CoinAddress::bitcoin();          coin_info('Bitcoin'$coin);
//}

//
// all other coin testnets uses Bitcoin prefixes
//$coin = CoinAddress::bitcoin_testnet();     coin_info('Bitcoin Testnet', $coin);

//$public_prefix  = '0x' . dechex( mt_rand(0,255) );
//$private_prefix = '0x' . dechex( mt_rand(0,255) );
//$coin = CoinAddress::generic( $public_prefix, $private_prefix);  coin_info('Random', $coin);

// END TEST

//exit;

//////////////////////////////////////////////
function coin_info($name,$coin) {
    print 
'' $coin['public'] . ",";
    print 
'' $coin['private'];
}

?>

be sure to keep generated wallet keys in safe place.

you can check the source of this code for other altcoins, i guess it works too but i tried it only with bitcoin.

source :
https://github.com/zamgo/PHPCoinAddress
member
Activity: 294
Merit: 10
Is it a requirement to implement it by yourself? Otherwise I would use a provider for this. Many of them accept bitcoin and common altcoins.

Just one example
https://coingate.com/accept-bitcoin
full member
Activity: 203
Merit: 168
I wrote a tool hd-wallet-derive that will derive addresses for 300+ altcoins.   In this case, you would give it an xpub for each altcoin, so the private key never needs to be on the server.  You could pre-generate the addresses, or gen each one on the fly by recording the last used index.

To be safe you should verify that the first 2 generated addresses actually match your wallet's addresses for each coin before accepting funds.
legendary
Activity: 3290
Merit: 16489
Thick-Skinned Gang Leader and Golden Feather 2021
I want to use this feature on my site to allow customers to pay with any coin they hae>
That's highly unpractical: to do this, you'll need to install a wallet for each different coin, and know the exchange rate t. With thousands of coins and new ones added all the time, you won't be able to keep up.

You may want to look into using payment processor that accepts many different coins.
newbie
Activity: 3
Merit: 0
hello

Many sites offer to their users the option to generate a wallet address for a large number of currencies, especially at share masternode and POS sites.
I want to use this feature on my site to allow customers to pay with any coin they hae>
so, hope some one tell me how to add this feature, or the way it is implemented, because my programmers team have no experience with the blockchain.
hope some one help me
thanks
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