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<?php
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namespace Aws\Crypto;
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use Psr\Http\Message\StreamInterface;
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interface AesStreamInterface extends StreamInterface
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{
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    /**
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     * Returns an identifier recognizable by `openssl_*` functions, such as
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     * `aes-256-cbc` or `aes-128-ctr`.
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     *
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     * @return string
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     */
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    public function getOpenSslName();
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    /**
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     * Returns an AES recognizable name, such as 'AES/GCM/NoPadding'.
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     *
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     * @return string
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     */
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    public function getAesName();
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    /**
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     * Returns the IV that should be used to initialize the next block in
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     * encrypt or decrypt.
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     *
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     * @return string
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     */
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    public function getCurrentIv();
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}