Es un poder de 58 posibilidades para cada uno de los caracteres que faltan (suponiendo que se conoce la dirección que está buscando) . Así, por 4 (58^4) debe ser factible la fuerza bruta, sino por 10 que probablemente no. La transacción se pone en algo que se llama mempool, de allí pasa a un bloque cuando se crea uno, el más alto precio que usted paga, más grande la posibilidad de que tu transacción sea confirmada. Usted también necesita saber de la energía consumida. Con el hash de la tasa, la dificultad, la energía consumida, los precios de la energía, y el bloque de pago (actualmente 50 bitcoins por bloque) se puede calcular el costo de producir un bitcoin. El blockchain. El 65% es un número, poco más que una semi-conjetura. Si alguien tiene matemáticas para compartir yo estaría feliz de modificar mi respuesta a incluir. Como a la espera de las confirmaciones, se le ayuda, pero sólo tanto. El 51% o superior da la oportunidad de forjar un bloque en el atacante. Si el atacante tuvo el 100% de una semana, se podría deshacer de una semana de bloques en ese momento. El 51% probablemente sólo vamos a un ladrón deshacer un pequeño puñado de bloques si mucho - de nuevo si alguien tiene el de matemáticas para respaldar esto, por favor, publicarlo.

He estado escribiendo un archivo php intención de crear un bitcoin clave privada y el cambio de cartera de formato de importación. El problema es cuando trato de un comando en un terminal de gnome, tales como:
bitcoin-cli importprivkey ygm8fAjomMyKVcb8vK8MPBByYpMDySY1vaxcpw6dufpbhb8kv "" false
Me sale un error:
error: {"code":-5,"mensaje":"Invalid clave privada de codificación"}


De esto me he infered que mi código es erróneo en la creación de una clave privada y el cambio en cartera de formato de importación. Pero por lo que veo en el código fuente debe hacer lo que dice en https://en.bitcoin.it/wiki/Wallet_import_format en "clave Privada para WIF"

Aquí están los archivos php:

test1.php:

<?php
require('devRand.php');
#require('base58.php');

$a = new btcMakePrivKey();
#echo $GLOBALS['base58oper'];
función decodeHex($hex) {
 $hexchars = "0123456789ABCDEF";

 $hex = strtoupper($hex);
 $retorno = "0";
 for ($i = 0; $i < strlen($hex); $i++) {
 $actual = (string) strpos($hexchars, $hex[$i]);
 $retorno = (string) bcmul($retorno", 16", 0);
 $retorno = (string) bcadd($retorno, $corriente, 0);
}
 return $retorno;
}
función encodeBase58($hex) 
{
 $base58chars = "123456789ABCDEFGHJKLMNPQRSTUVWXYzabcdefghijkmnopqrstuvwxyz";
 if (strlen($hex) % 2 != 0) {
 die("encodeBase58: número impar de caracteres hexadecimales");
}
 $orighex = $hex;

 $hex = decodeHex($hex);
 $retorno = "";
 mientras (bccomp($hex, 0) == 1) {
 $dv = (string) bcdiv($hex, "58", 0);
 $rem = (integer) bcmod($hex, "58");
 $hex = $dv;
 $retorno = $retorno . $base58chars[$rem];
}
 $retorno = strrev($retorno);

 //los ceros a la izquierda
 for ($i = 0; $i < strlen($orighex) && substr($orighex, $i, 2) == "00"; $i += 2) {
 $retorno = "1" . $retorno;
}
 return $retorno;
}
clase btcMakePrivKey
{
 //$base58oper = new base58();
 public function __construct()
{
 #$this->base58oper = new base58();
 $contador = 0; $privKey = "";
 while($count < 62)
{
 $actualizable = devurandom_rand(0,15);
switch($actualizable)
{
 caso 10:
 $actualizable = 'A';
break;
 caso 11:
 $actualizable = 'B';
break;
 caso 12:
 $actualizable = 'C';
break;
 caso 13:
 $actualizable = 'D';
break;
 caso 14:
 $actualizable = 'E';
break;
 caso 15:
 $actualizable = 'F';
break;
por defecto:
break;
}
 $contador = $contador + 1;
 $privKey = $privKey . $actualizable;
}
 $privKey = $this->addLeadingByte($privKey);
 #echo $privKey . "\n\n";
 $pkHashed = $this->sha256Hash($this->sha256Hash($privKey) );
 $checksum = substr($pkHashed, 0, 8);
 $privKey = $privKey . $suma de comprobación;
 #$privKey = $this->base58oper->encode($privKey);
 $privKey = encodeBase58($privKey);
 echo $privKey;// . "\n\n" . $pkHashed . "\n\n" . $suma de comprobación;
}
 función privada addLeadingByte($privKey)
{
 el retorno de los '80' . $privKey;
}
 función privada sha256Hash($privKey)
{
 volver hash('sha256', $privKey, false);
}
}

y devRand.php:

<?php
//equiv a rand, mt_rand
//devuelve int en *cerrado* intervalo [$min,$max]
función devurandom_rand($min = 0, $max = 0x7FFFFFFF) {
 $diff = $max - $min;
 if ($diff < 0 || $diff > 0x7FFFFFFF) {
 throw new RuntimeException("Malo rango");
}
 $bytes = mcrypt_create_iv(4, MCRYPT_DEV_URANDOM);
 if ($bytes === false || strlen($bytes) != 4) {
 throw new RuntimeException("no se puede obtener 4 bytes");
}
 $ary = unpack("Nint", $bytes);
 $val = $ary [int] & 0x7FFFFFFF; // 32 bits seguro
 $fp = (float) $val / 2147483647.0; // convertir a [0,1]
 el retorno de la ronda($fp * $diff) + $min;
}

Tengo la intención de mi código para crear un bitcoin clave privada y la convierte en utilizable clave en la cartera formato de importación, que puede ser utilizado en bitcoin-cli importprivkey insertKeyHere "" false

$200 cialis coupon 10 mg tadalafil generic 5 mg cialis over the counter at walmart best price for tadalafil 20 mg buy cialis buy cialis generic tadalafil buy cialis online buy cialis online without script buy tadalafil buy tadalafil online canadian cialis online pharmacy canadian pharmacy cialis cheap cialis cheap cialis generic cialis cialis 20 mg best price cialis 20mg cialis 30 day sample cialis 30 day trial coupon cialis and alcohol cialis before and after cialis canada cialis canada pharmacy online cialis cost cialis coupon cialis coupons cialis coupons printable cialis dosage cialis dosage information cialis for daily use cialis for sale cialis free trial cialis free trial voucher for cialis cialis generic cialis generic release date cialis generic tadalafil cialis lowest price cialis online cialis online pharmacy cialis over the counter cialis over the counter at walmart cialis patent expiration date extended cialis picture testimonials cialis pills cialis price cialis prices cialis reviews cialis side effects cialis tadalafil cialis tadalafil 20 mg cialis vs viagra cialis vs viagra which is better cialis without a doctor's prescription cialis without doctor prescription cost of cialis cost of tadalafil generic at walgreens coupon for cialis by manufacturer does cialis lower blood pressure generic cialis generic cialis at walmart generic cialis canada generic cialis canada pharmacy generic cialis from india generic cialis tadalafil generic tadalafil generic tadalafil 20 mg is there a generic for cialis online cialis purchasing cialis on the internet side effects for cialis side effects for tadalafil side effects of cialis tadalafil tadalafil 20 mg tadalafil 20 mg canadian drug stores tadalafil 20mg tadalafil 20mg lowest price tadalafil 5 mg tadalafil 5mg tadalafil cost at walmart tadalafil dosage tadalafil generic tadalafil generic at walgreens tadalafil generic best prices tadalafil online tadalafil price tadalafil side effects tadalafil tablets tadalafil without a doctor's prescription viagra vs cialis viagra vs cialis vs levitra warnings for tadalafil $200 cialis coupon 10 mg tadalafil generic 5 mg cialis over the counter at walmart best price for tadalafil 20 mg buy cialis buy cialis generic tadalafil buy cialis online buy cialis online without script buy tadalafil buy tadalafil online canadian cialis online pharmacy canadian pharmacy cialis cheap cialis cheap cialis generic cialis cialis 20 mg best price cialis 20mg cialis 30 day sample cialis 30 day trial coupon cialis and alcohol cialis before and after cialis canada cialis canada pharmacy online cialis cost cialis coupon cialis coupons cialis coupons printable cialis dosage cialis dosage information cialis for daily use cialis for sale cialis free trial cialis free trial voucher for cialis cialis generic cialis generic release date cialis generic tadalafil cialis lowest price cialis online cialis online pharmacy cialis over the counter cialis over the counter at walmart cialis patent expiration date extended cialis picture testimonials cialis pills cialis price cialis prices cialis reviews cialis side effects cialis tadalafil cialis tadalafil 20 mg cialis vs viagra cialis vs viagra which is better cialis without a doctor's prescription cialis without doctor prescription cost of cialis cost of tadalafil generic at walgreens coupon for cialis by manufacturer does cialis lower blood pressure generic cialis generic cialis at walmart generic cialis canada generic cialis canada pharmacy generic cialis from india generic cialis tadalafil generic tadalafil generic tadalafil 20 mg is there a generic for cialis online cialis purchasing cialis on the internet side effects for cialis side effects for tadalafil side effects of cialis tadalafil tadalafil 20 mg tadalafil 20 mg canadian drug stores tadalafil 20mg tadalafil 20mg lowest price tadalafil 5 mg tadalafil 5mg tadalafil cost at walmart tadalafil dosage tadalafil generic tadalafil generic at walgreens tadalafil generic best prices tadalafil online tadalafil price tadalafil side effects tadalafil tablets tadalafil without a doctor's prescription viagra vs cialis viagra vs cialis vs levitra warnings for tadalafil blue chew viagra scam buy viagra buy viagra online buy viagra online canada pharmacy buy viagra online without script canada pharmacy viagra generic canadian pharcharmy online viagra canadian viagra canadian viagra without a doctor prescription cheap viagra cialis vs viagra cost of viagra female viagra female viagra pills free viagra free viagra samples generic viagra generic viagra 100mg generic viagra available generic viagra canada price generic viagra online pharmacy generic viagra sildenafil citrate generic viagra without a doctor prescription herbal viagra how does viagra work how long does viagra last how much does viagra cost how to take viagra for maximum effect i took viagra mom levitra vs viagra mom gives son viagra natural viagra natural viagra alternatives that work natural viagra substitute nizagara 100 mg vs viagra online viagra online viagra without subscription over the counter viagra real life viagra demonstration revatio vs viagra side effects of viagra sildenafil sildenafil 100mg sildenafil 20 mg sildenafil 20 mg tablet sildenafil 20 mg tablet vs viagra sildenafil citrate sildenafil citrate 100mg sildenafil citrate 20 mg sildenafil coupons sildenafil dosage sildenafil dosage recommendations sildenafil generic sildenafil side effects sophia viagra sophia viagra bikini sophia viagra hot stendra vs viagra stepmom gives son viagra viagra viagra 100mg viagra before after photo actual viagra boner viagra canada online pharmacy viagra coupon viagra coupons viagra coupons from pfizer viagra dosage viagra dosage recommendations viagra erection viagra erection after ejaculation viagra for men viagra for sale viagra for sale on amazon viagra for women viagra generic viagra generic availability viagra generic release date viagra in action viagra on line viagra online viagra online canada pharmacy viagra online pharmacy viagra patent expiration viagra pill viagra pills viagra porn viagra prank viagra prices viagra samples viagra sex viagra side effects viagra substitute viagra vs cialis viagra without a doctor prescription viagra without doctor prescription what is viagra when will generic viagra be available blue chew viagra scam buy viagra buy viagra online buy viagra online canada pharmacy buy viagra online without script canada pharmacy viagra generic canadian pharcharmy online viagra canadian viagra canadian viagra without a doctor prescription cheap viagra cialis vs viagra cost of viagra female viagra female viagra pills free viagra free viagra samples generic viagra generic viagra 100mg generic viagra available generic viagra canada price generic viagra online pharmacy generic viagra sildenafil citrate generic viagra without a doctor prescription herbal viagra how does viagra work how long does viagra last how much does viagra cost how to take viagra for maximum effect i took viagra mom levitra vs viagra mom gives son viagra natural viagra natural viagra alternatives that work natural viagra substitute nizagara 100 mg vs viagra online viagra online viagra without subscription over the counter viagra real life viagra demonstration revatio vs viagra side effects of viagra sildenafil sildenafil 100mg sildenafil 20 mg sildenafil 20 mg tablet sildenafil 20 mg tablet vs viagra sildenafil citrate sildenafil citrate 100mg sildenafil citrate 20 mg sildenafil coupons sildenafil dosage sildenafil dosage recommendations sildenafil generic sildenafil side effects sophia viagra sophia viagra bikini sophia viagra hot stendra vs viagra stepmom gives son viagra viagra viagra 100mg viagra before after photo actual viagra boner viagra canada online pharmacy viagra coupon viagra coupons viagra coupons from pfizer viagra dosage viagra dosage recommendations viagra erection viagra erection after ejaculation viagra for men viagra for sale viagra for sale on amazon viagra for women viagra generic viagra generic availability viagra generic release date viagra in action viagra on line viagra online viagra online canada pharmacy viagra online pharmacy viagra patent expiration viagra pill viagra pills viagra porn viagra prank viagra prices viagra samples viagra sex viagra side effects viagra substitute viagra vs cialis viagra without a doctor prescription viagra without doctor prescription what is viagra when will generic viagra be available $200 cialis coupon 10 mg tadalafil generic 5 mg cialis over the counter at walmart best price for tadalafil 20 mg buy cialis buy cialis generic tadalafil buy cialis online buy cialis online without script buy tadalafil buy tadalafil online canadian cialis online pharmacy canadian pharmacy cialis cheap cialis cheap cialis generic cialis cialis 20 mg best price cialis 20mg cialis 30 day sample cialis 30 day trial coupon cialis and alcohol cialis before and after cialis canada cialis canada pharmacy online cialis cost cialis coupon cialis coupons cialis coupons printable cialis dosage cialis dosage information cialis for daily use cialis for sale cialis free trial cialis free trial voucher for cialis cialis generic cialis generic release date cialis generic tadalafil cialis lowest price cialis online cialis online pharmacy cialis over the counter cialis over the counter at walmart cialis patent expiration date extended cialis picture testimonials cialis pills cialis price cialis prices cialis reviews cialis side effects cialis tadalafil cialis tadalafil 20 mg cialis vs viagra cialis vs viagra which is better cialis without a doctor's prescription cialis without doctor prescription cost of cialis cost of tadalafil generic at walgreens coupon for cialis by manufacturer does cialis lower blood pressure generic cialis generic cialis at walmart generic cialis canada generic cialis canada pharmacy generic cialis from india generic cialis tadalafil generic tadalafil generic tadalafil 20 mg is there a generic for cialis online cialis purchasing cialis on the internet side effects for cialis side effects for tadalafil side effects of cialis tadalafil tadalafil 20 mg tadalafil 20 mg canadian drug stores tadalafil 20mg tadalafil 20mg lowest price tadalafil 5 mg tadalafil 5mg tadalafil cost at walmart tadalafil dosage tadalafil generic tadalafil generic at walgreens tadalafil generic best prices tadalafil online tadalafil price tadalafil side effects tadalafil tablets tadalafil without a doctor's prescription viagra vs cialis viagra vs cialis vs levitra warnings for tadalafil