Lines Matching full:hash

25  * Data hash object used as seed when creating and verifying timestamps.
27  * To calculate the hash sum of some data, first create a data hash object and then
29  * fed to the hash calculator. You can then retrieve the resulting hash value using
30  * getHashedMessage() method but this closes the hash object and you can't add more
33  * Example 1 - new hash:
38  * $hash = new GTDataHash(GTHashAlgorithm::getByName('DEFAULT'));
39  * $hash->update(array(0, 1, 2));
40  * $hash->updateFile('data.txt');
42  * $hash->close();
44  * print_r($hash->getHashedMessage());
47  * Example 2 - hash with existing hash value:
55  * $hash = new GTDataHash(GTHashAlgorithm::getByName('SHA256'), $bytes);
58  * Example 3 - hash from dataImprint:
67  * $hash = GTDataHash::getInstance($dataImprint);
79      * Builds a new hash object with the given hashAlgorithm and hashedMessage.
89      * @param  GTHashAlgorithm $hashAlgorithm hash algorithm to use
90      * @param  array $hashedMessage hash bytes
115                 throw new GTException("hash must be an array of bytes");
119 …           throw new GTException("hash length does not match with that defined in hash algorithm");
129      * Updates this hash calculator with the given bytes.
132      * @param  $bytes byte array to feed to this hash calculator
138             throw new GTException("hash calculator already closed");
148             throw new GTException("hash update failed with unknown error");
153      * Updates this hash calculator with the bytes from the given file.
156      * @param  string $file file to feed to this hash calculator
162             throw new GTException("hash calculator already closed");
184             throw new GTException("hash updateFile failed with unknown error");
190      * Updates this hash calculator with the bytes from the given stream.
193      * @param  $handle handle of the stream to feed to this hash calculator
199             throw new GTException("hash calculator already closed");
213             throw new GTException("hash updateStream failed with unknown error");
219      * Explicitly closes this hash calculator.
221      * After the hash calculator is closed all calls to update methods will throw an exception.
238      * Checks if this hash calculator is closed.
240      * @return bool true if this hash calculator is closed.
247      * Gets the GTHashAlgorithm used by this hash calculator.
256      * Gets the current hash bytes.
258      * This method will also close the hash calculator when called. After closing
273      * Gets the current hash data imprint.
275      * This method will also close the hash calculator when called. After closing
278      * Data imprint is an array of bytes consisting of GTHashAlgorithm->getGtid() + hash bytes
300      * DataImprint is an array of bytes consisting of GTHashAlgorithm->getGtid() and hash bytes.