Php Generate Random Hash Key
Here's my final version of a GUIDv4 function (based on others work here) that should work on all platforms and gracefully fallback to less cryptographically secure version if others are not supported..
<?php
/**
* Returns a GUIDv4 string
*
* Uses the best cryptographically secure method
* for all supported pltforms with fallback to an older,
* less secure version.
*
* @param bool $trim
* @return string
*/
function GUIDv4 ($trim = true)
{
// Windows
if (function_exists('com_create_guid') true) {
if ($trim true)
return trim(com_create_guid(), '{}');
else
return com_create_guid();
}
// OSX/Linux
if (function_exists('openssl_random_pseudo_bytes') true) {
$data = openssl_random_pseudo_bytes(16);
$data[6] = chr(ord($data[6]) & 0x0f 0x40); // set version to 0100
$data[8] = chr(ord($data[8]) & 0x3f 0x80); // set bits 6-7 to 10
return vsprintf('%s%s-%s-%s-%s-%s%s%s', str_split(bin2hex($data), 4));
}
// Fallback (PHP 4.2+)
mt_srand((double)microtime() * 10000);
$charid = strtolower(md5(uniqid(rand(), true)));
$hyphen = chr(45); // '-'
$lbrace = $trim ? ' : chr(123); // '{'
$rbrace = $trim ? ' : chr(125); // '}'
$guidv4 = $lbrace.
substr($charid, 0, 8).$hyphen.
substr($charid, 8, 4).$hyphen.
substr($charid, 12, 4).$hyphen.
substr($charid, 16, 4).$hyphen.
substr($charid, 20, 12).
$rbrace;
return $guidv4;
}
?>- Php Generate Random Hash Key Pokemon
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- Php Generate Random Hash Key In Java
Php Generate Random Hash Key Pokemon
- You can modify it to add particular suffixes and prefixes to the generated random string. People who are using PHP 7 can improve the string generation further by using the cryptographically secure function randomint instead of mtrand. Generate Random Hexadecimal Strings. If you want to generate random hexadecimal strings in PHP, you can.
- Generate a Bitcoin address. With this generator it is possible to generate a random Bitcoin address.By clicking on the generate button based on the selection the Bitcoin public, wallet and private key then is generated. All keys can be copied to.
This piece of software is provided without warranty of any kind, use it at your own risk.
Generating Random String Using PHP. PHP has a few functions like md5, sha1 and hash, that can be used to hash a string based on certain algorithms like “sha1”, “sha256”, “md5” etc. Generate a random number using rand function. Hash it using one of the above functions. Program 1: filternone.
php 5.4.0 or newer.
php5-gmp needs to be installed.
If you want to launch the test file you need to be under a unix system with libbitcoin intalled on it.
Installation
Best way is to use composer
Alternatively add following snippet in you composer.json
Instanciation
Set a private key
examples of private keys :
4C28FCA386C7A227600B2FE50B7CAE11EC86D3BF1FBE471BE89827E19D72AA1D00FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEFFFFFC
Generate a random private key
The nonce is optional, typically the nonce is a chunck of random data you get from the user. This can be mouse coordinates.Using a nonce adds randomness, which means the generated private key is stronger.
Get the private key
Returns the private key.
Get the Wif
returns the private key under the Wallet Import Format
Get the Public Key
Returns the compressed public key.The compressed PubKey starts with 0x02 if it's y coordinate is even and 0x03 if it's odd, the next 32 bytes corresponds to the x coordinates.
Example : 0226c50013603b085fbc26411d5d7e564b252d88964eedc4e01251d2d495e92c29
Get the Uncompressed Public Key
Returns the uncompressed PubKey.The uncompressed PubKey starts with 0x04, the next 32 bytes are the x coordinates, the last 32 bytes are the y coordinates.
Example : 04c80e8af3f1b7816a18aa24f242fc0740e9c4027d67c76dacf4ce32d2e5aace241c426fd288a9976ca750f1b192d3acd89dfbeca07ef27f3e5eb5d482354c4249
Get the coordinates of the Public Key
Returns an array containing the x and y coordinates of the public key
Example :Array ( [x] => a69243f3c4c047aba38d7ac3660317629c957ab1f89ea42343aee186538a34f8 [y] => b6d862f39819060378542a3bb43ff76b5d7bb23fc012f09c3cd2724bebe0b0bd )
Get the Address
Returns the compressed Bitcoin Address.
Get the uncompressed Address
Returns the uncompressed Bitcoin Address.
Validate an address
Returns true if the address is valid and false if it isn't
Validate a Wif key
Returns true if the WIF key is valid and false if it isn't
Sign a message
Returns a satoshi client standard signed message.
verify a message
Returns true if the signature is matching the address and false if it isn't.
sign a sha256 hash
Returns a DER encoded hexadecimal signature.
verify a signature
Returns true if the signature is matching the public key and false if it isn't.
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, ordistribute this software, either in source code form or as a compiledbinary, for any purpose, commercial or non-commercial, and by anymeans.
Php Generate Random Password
In jurisdictions that recognize copyright laws, the author or authorsof this software dedicate any and all copyright interest in thesoftware to the public domain. We make this dedication for the benefitof the public at large and to the detriment of our heirs andsuccessors. We intend this dedication to be an overt act ofrelinquishment in perpetuity of all present and future rights to thissoftware under copyright law.
THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OFMERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OROTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OROTHER DEALINGS IN THE SOFTWARE.
Php Generate Random Hash Key In Java
For more information, please refer to http://unlicense.org/ Microsoft word 2000 cd key generator.