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ModifyProtection

Struct ModifyProtection 

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pub struct ModifyProtection {
    pub salt_b64: String,
    pub hash_b64: String,
    pub spin_count: u32,
    pub crypt_provider_type: &'static str,
    pub algorithm_sid: u32,
}
Expand description

修改密码保护参数。

对应 <p:modifyVerifier> XML 元素,包含密码哈希、salt、迭代次数等。 注入到 presentation.xml 后,WPS / PowerPoint 打开时会提示 “以只读方式打开“或“输入密码以修改”。

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§salt_b64: String

salt 的 base64 编码。

§hash_b64: String

哈希值的 base64 编码。

§spin_count: u32

迭代次数。

§crypt_provider_type: &'static str

加密算法提供者类型。

§algorithm_sid: u32

加密算法 SID(14 = SHA-512)。

Implementations§

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impl ModifyProtection

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pub fn from_password(password: &str, salt: &[u8], spin_count: u32) -> Self

从密码创建修改密码保护。

§算法(MS-OFFCRYPTO §2.4.2.4)
H_0 = SHA-512(salt || password_utf16le)
H_n = SHA-512(H_{n-1} || n.to_le_u32)   for n = 0..spinCount-1
§参数
  • password:明文密码;
  • salt:16 字节随机值(每次调用应使用不同 salt);
  • spin_count:迭代次数(默认 100 000)。
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pub fn verify_password(&self, password: &str) -> bool

验证密码是否匹配。

用相同算法重新计算哈希,与存储的哈希比对。

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pub fn to_xml_element(&self) -> String

序列化为 <p:modifyVerifier .../> XML 元素。

元素位置必须在 <p:extLst> 之前(OOXML schema 顺序要求)。

Trait Implementations§

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impl Clone for ModifyProtection

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fn clone(&self) -> ModifyProtection

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Debug for ModifyProtection

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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Gets the TypeId of self. Read more
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where T: ?Sized,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
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