特性 Tls12AeadAlgorithm

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pub trait Tls12AeadAlgorithm:
    Send
    + Sync
    + 'static {
    // Required methods
    fn encrypter(
        &self,
        key: AeadKey,
        iv: &[u8],
        extra: &[u8],
    ) -> Box<dyn MessageEncrypter>;
    fn decrypter(&self, key: AeadKey, iv: &[u8]) -> Box<dyn MessageDecrypter>;
    fn key_block_shape(&self) -> KeyBlockShape;
    fn extract_keys(
        &self,
        key: AeadKey,
        iv: &[u8],
        explicit: &[u8],
    ) -> Result<ConnectionTrafficSecrets, UnsupportedOperationError>;

    // Provided method
    fn fips(&self) -> bool { ... }
}

展开描述

Factory trait 用于 building MessageEncrypter 并 MessageDecrypter 用于一个 TLS1.2 cipher 套件）。

必需方法§

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fn encrypter( &self, key: AeadKey, iv: &[u8], extra: &[u8], ) -> Box<dyn MessageEncrypter>

构建 MessageEncrypter 用于 the given key/iv 并 extra key block (which can be 用用于 improving explicit nonce size security, if needed)。

此 length of key is set by KeyBlockShape::enc_key_len。

此 length of iv is set by KeyBlockShape::fixed_iv_len。

此 length of extra is set by KeyBlockShape::explicit_nonce_len。

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fn decrypter(&self, key: AeadKey, iv: &[u8]) -> Box<dyn MessageDecrypter>

构建 MessageDecrypter 用于 the given key/iv.

此 length of key is set by KeyBlockShape::enc_key_len。

此 length of iv is set by KeyBlockShape::fixed_iv_len。

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fn key_block_shape(&self) -> KeyBlockShape

Return 一个 KeyBlockShape that defines how large the key_block is 并 how it is split up prior 到 calling encrypter(), decrypter() 并/或 extract_keys()。

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