43 lines
983 B
PHP
43 lines
983 B
PHP
<?php
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if(function_exists('openssl_encrypt')) {
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class OpenSSLWrapper {
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public $cipher, $key, $iv, $key_size, $block_size;
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function __construct($cipher) {
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if($cipher != "CAST5-CFB") throw Exception("OpenSSLWrapper is only used for CAST5 right now");
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$this->cipher = $cipher;
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$this->key_size = 16;
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$this->block_size = 8;
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$this->iv = str_repeat("\0", 8);
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}
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function getBlockLengthInBytes()
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{
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return $this->block_size;
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}
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function getKeyLength() {
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return $this->key_size << 3;
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}
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function setKey($key) {
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$this->key = $key;
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}
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function setIV($iv) {
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$this->iv = $iv;
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}
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function encrypt($data) {
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return openssl_encrypt($data, $this->cipher, $this->key, OPENSSL_RAW_DATA|OPENSSL_ZERO_PADDING, $this->iv);
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}
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function decrypt($data) {
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return openssl_decrypt($data, $this->cipher, $this->key, OPENSSL_RAW_DATA|OPENSSL_ZERO_PADDING, $this->iv);
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}
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}
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}
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