WriteProtection.CryptographicAlgorithmSid Property
Cryptographic Hashing Algorithm.Represents the attribte in schema: w:cryptAlgorithmSid
Namespace: DocumentFormat.OpenXml.Wordprocessing
Assembly: DocumentFormat.OpenXml (in DocumentFormat.OpenXml.dll)
Syntax
'Declaration
<SchemaAttrAttribute(, "cryptAlgorithmSid")> _
Public Property CryptographicAlgorithmSid As Int32Value
Get
Set
'Usage
Dim instance As WriteProtection
Dim value As Int32Value
value = instance.CryptographicAlgorithmSid
instance.CryptographicAlgorithmSid = value
[SchemaAttrAttribute(, "cryptAlgorithmSid")]
public Int32Value CryptographicAlgorithmSid { get; set; }
Property Value
Type: DocumentFormat.OpenXml.Int32Value
Returns Int32Value.
Remarks
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.