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Crypt/Base: don't always treat CTR as being continuous w/ OpenSSL
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@ -1327,19 +1327,26 @@ class Crypt_Base
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if ($overflow) {
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$plaintext2 = $this->_string_pop($plaintext, $overflow); // ie. trim $plaintext to a multiple of $block_size and put rest of $plaintext in $plaintext2
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$encrypted = openssl_encrypt($plaintext . str_repeat("\0", $block_size), $this->cipher_name_openssl, $key, $this->openssl_options, $encryptIV);
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$encryptIV = $this->_string_pop($encrypted, $block_size);
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$ciphertext.= $encrypted . ($plaintext2 ^ $encryptIV);
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$buffer['ciphertext'] = substr($encryptIV, $overflow);
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$temp = $this->_string_pop($encrypted, $block_size);
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$ciphertext.= $encrypted . ($plaintext2 ^ $temp);
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if ($this->continuousBuffer) {
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$buffer['ciphertext'] = substr($temp, $overflow);
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$encryptIV = $temp;
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}
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} else if (!strlen($buffer['ciphertext'])) {
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$ciphertext.= openssl_encrypt($plaintext . str_repeat("\0", $block_size), $this->cipher_name_openssl, $key, $this->openssl_options, $encryptIV);
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$encryptIV = $this->_string_pop($ciphertext, $block_size);
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if ($this->continuousBuffer) {
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$encryptIV = $this->_string_pop($ciphertext, $block_size);
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}
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}
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if (!defined('OPENSSL_RAW_DATA')) {
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$encryptIV.= openssl_encrypt('', $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
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}
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$encryptIV = openssl_decrypt($encryptIV, $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
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if ($overflow) {
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$this->_increment_str($encryptIV);
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if ($this->continuousBuffer) {
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if (!defined('OPENSSL_RAW_DATA')) {
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$encryptIV.= openssl_encrypt('', $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
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}
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$encryptIV = openssl_decrypt($encryptIV, $this->cipher_name_openssl_ecb, $key, $this->openssl_options);
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if ($overflow) {
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$this->_increment_str($encryptIV);
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}
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}
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return $ciphertext;
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