WriteProtection.CryptographicAlgorithmSid Property
Important
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Cryptographic Hashing Algorithm
Represents the following attribute in the schema: w:cryptAlgorithmSid
[DocumentFormat.OpenXml.SchemaAttr(23, "cryptAlgorithmSid")]
public DocumentFormat.OpenXml.Int32Value CryptographicAlgorithmSid { get; set; }public DocumentFormat.OpenXml.Int32Value CryptographicAlgorithmSid { get; set; }[DocumentFormat.OpenXml.SchemaAttr(23, "cryptAlgorithmSid")]
public DocumentFormat.OpenXml.Int32Value? CryptographicAlgorithmSid { get; set; }[DocumentFormat.OpenXml.SchemaAttr("w:cryptAlgorithmSid")]
public DocumentFormat.OpenXml.Int32Value? CryptographicAlgorithmSid { get; set; }public DocumentFormat.OpenXml.Int32Value? CryptographicAlgorithmSid { get; set; }member this.CryptographicAlgorithmSid : DocumentFormat.OpenXml.Int32Value with get, set[<DocumentFormat.OpenXml.SchemaAttr(23, "cryptAlgorithmSid")>]
member this.CryptographicAlgorithmSid : DocumentFormat.OpenXml.Int32Value with get, set[<DocumentFormat.OpenXml.SchemaAttr("w:cryptAlgorithmSid")>]
member this.CryptographicAlgorithmSid : DocumentFormat.OpenXml.Int32Value with get, setPublic Property CryptographicAlgorithmSid As Int32ValueReturns Int32Value.
- Attributes
The following information from the ECMA International Standard ECMA-376 can be useful when working with this class.
Specifies the specific cryptographic hashing algorithm which shall be used along with the salt attribute and user-supplied password in order to compute a hash value for comparison.
The possible values for this attribute shall be interpreted as follows:
| Value | Algorithm |
|---|---|
1 |
MD2 |
2 |
MD4 |
3 |
MD5 |
4 |
SHA-1 |
5 |
MAC |
6 |
RIPEMD |
7 |
RIPEMD-160 |
8 |
Undefined. Shall not be used. |
9 |
HMAC |
10 |
Undefined. Shall not be used. |
11 |
Undefined. Shall not be used. |
12 |
SHA-256 |
13 |
SHA-384 |
14 |
SHA-512 |
| Any other value | Undefined. Shall not be used. |
Consider a WordprocessingML document with the following information stored in one of its protection elements:
<w:… w:cryptAlgorithmClass="hash"
w:cryptAlgorithmType="typeAny"
w:cryptAlgorithmSid="1"
w:hash="9oN7nWkCAyEZib1RomSJTjmPpCY=" />
The cryptAlgorithmSid attribute value of 1 specifies that the SHA-1 hashing algorithm shall be used to generate a hash from the user-defined password.
The possible values for this attribute are defined by the ST_DecimalNumber simple type.
| Product | Versions |
|---|---|
| DocumentFormat.OpenXml | 2.7.1, 2.7.2, 2.8.0, 2.8.1, 2.9.0, 2.9.1, 2.10.0, 2.10.1, 2.11.0, 2.11.1, 2.11.2, 2.11.3, 2.12.0, 2.12.1, 2.12.2, 2.12.3, 2.13.0, 2.13.1, 2.14.0, 2.15.0, 2.16.0, 2.17.1, 2.18.0, 2.19.0, 2.20.0, 3.0.0, 3.0.1 |