openssl_digest

(PHP 5 >= 5.3.0)

openssl_digest — Computes a digest

Descrição

string openssl_digest ( string $data , string $method [, bool $raw_output = false ] )

Computes a digest hash value for the given data using a given method, and returns a raw or binhex encoded string.

Aviso

Esta função não está documentada; somente a lista de argumentos está disponível.

Parâmetros

data: The data.
method: The digest method.
raw_output: Setting to TRUE will return as raw output data, otherwise the return value is binhex encoded.

Valor Retornado

Returns the digested hash value on success or FALSE on failure.

Erros

Emits an E_WARNING level error if an unknown signature algorithm is passed via the method parameter.

Veja Também

openssl_get_cipher_methods() - Gets available cipher methods

add a note User Contributed Notes openssl_digest

skyblackhawk at yahoo dot it 10-Jun-2011 08:34


Example:


// $fileBuffer is buffer of file in open mode or a generic stream...


$fingerPrint = openssl_digest ($fileBuffer , "sha512");





$method parameter is one of hash_algos() array;





<? echo"<PRE>";


      var_dump(hash_algos());


      echo "</PRE>"


?>





Output:





array(42) {


  [0]=>


  string(3) "md2"


  [1]=>


  string(3) "md4"


  [2]=>


  string(3) "md5"


  [3]=>


  string(4) "sha1"


  [4]=>


  string(6) "sha224"


  [5]=>


  string(6) "sha256"


  [6]=>


  string(6) "sha384"


  [7]=>


  string(6) "sha512"


  [8]=>


  string(9) "ripemd128"


  [9]=>


  string(9) "ripemd160"


  [10]=>


  string(9) "ripemd256"


  [11]=>


  string(9) "ripemd320"


  [12]=>


  string(9) "whirlpool"


  [13]=>


  string(10) "tiger128,3"


  [14]=>


  string(10) "tiger160,3"


  [15]=>


  string(10) "tiger192,3"


  [16]=>


  string(10) "tiger128,4"


  [17]=>


  string(10) "tiger160,4"


  [18]=>


  string(10) "tiger192,4"


  [19]=>


  string(6) "snefru"


  [20]=>


  string(9) "snefru256"


  [21]=>


  string(4) "gost"


  [22]=>


  string(7) "adler32"


  [23]=>


  string(5) "crc32"


  [24]=>


  string(6) "crc32b"


  [25]=>


  string(7) "salsa10"


  [26]=>


  string(7) "salsa20"


  [27]=>


  string(10) "haval128,3"


  [28]=>


  string(10) "haval160,3"


  [29]=>


  string(10) "haval192,3"


  [30]=>


  string(10) "haval224,3"


  [31]=>


  string(10) "haval256,3"


  [32]=>


  string(10) "haval128,4"


  [33]=>


  string(10) "haval160,4"


  [34]=>


  string(10) "haval192,4"


  [35]=>


  string(10) "haval224,4"


  [36]=>


  string(10) "haval256,4"


  [37]=>


  string(10) "haval128,5"


  [38]=>


  string(10) "haval160,5"


  [39]=>


  string(10) "haval192,5"


  [40]=>


  string(10) "haval224,5"


  [41]=>


  string(10) "haval256,5"


}

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