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PasswordDeriveBytes.CryptDeriveKey Method

Derives a cryptographic key from the PasswordDeriveBytes object.

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

member CryptDeriveKey : 
        algname:string * 
        alghashname:string * 
        keySize:int * 
        rgbIV:byte[] -> byte[] 

Parameters

algname
Type: System.String

The algorithm name for which to derive the key.

alghashname
Type: System.String

The hash algorithm name to use to derive the key.

keySize
Type: System.Int32

The size of the key, in bits, to derive.

rgbIV
Type: System.Byte[]

The initialization vector (IV) to use to derive the key.

Return Value

Type: System.Byte[]
The derived key.

ExceptionCondition
CryptographicException

The keySize parameter is incorrect.

-or-

The cryptographic service provider (CSP) cannot be acquired.

-or-

The algname parameter is not a valid algorithm name.

-or-

The alghashname parameter is not a valid hash algorithm name.

This function is a wrapper for the Crypto API function CryptDeriveKey(), and is intended to offer interoperability with applications using the Crypto API.

If the keySize parameter is set to 0 bits, the default key size for the specified algorithm is used.

This code example is part of a larger example provided for the PasswordDeriveBytes class.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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