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HMAC.HashCore Method

Microsoft Silverlight will reach end of support after October 2021. Learn more.

When overridden in a derived class, routes data written to the object into the default HMAC hash algorithm for computing the hash value.

Namespace:  System.Security.Cryptography
Assembly:  mscorlib (in mscorlib.dll)

Syntax

'Declaration
Protected Overrides Sub HashCore ( _
    rgb As Byte(), _
    ib As Integer, _
    cb As Integer _
)

protected override void HashCore(
    byte[] rgb,
    int ib,
    int cb
)

Parameters

  • ib
    Type: System.Int32
    The offset into the byte array from which to begin using data.
  • cb
    Type: System.Int32
    The number of bytes in the array to use as data.

Remarks

This method is not called by application code.

This abstract method performs the hash computation. Every write to the cryptographic stream object passes the data through this method. For each block of data, this method updates the state of the hash object so that a correct hash value is returned at the end of the data stream.

Version Information

Silverlight

Supported in: 5, 4, 3

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1, Windows Phone OS 7.0

XNA Framework

Supported in: Windows Phone OS 7.0

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.