Rfc2898DeriveBytes.CryptDeriveKey(String, String, Int32, Byte[]) Method
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Caution
Rfc2898DeriveBytes.CryptDeriveKey is obsolete and is not supported. Use PasswordDeriveBytes.CryptDeriveKey instead.
Derives a cryptographic key from the Rfc2898DeriveBytes object.
public:
cli::array <System::Byte> ^ CryptDeriveKey(System::String ^ algname, System::String ^ alghashname, int keySize, cli::array <System::Byte> ^ rgbIV);
public byte[] CryptDeriveKey (string algname, string alghashname, int keySize, byte[] rgbIV);
[System.Obsolete("Rfc2898DeriveBytes.CryptDeriveKey is obsolete and is not supported. Use PasswordDeriveBytes.CryptDeriveKey instead.", DiagnosticId="SYSLIB0033", UrlFormat="https://aka.ms/dotnet-warnings/{0}")]
public byte[] CryptDeriveKey (string algname, string alghashname, int keySize, byte[] rgbIV);
member this.CryptDeriveKey : string * string * int * byte[] -> byte[]
[<System.Obsolete("Rfc2898DeriveBytes.CryptDeriveKey is obsolete and is not supported. Use PasswordDeriveBytes.CryptDeriveKey instead.", DiagnosticId="SYSLIB0033", UrlFormat="https://aka.ms/dotnet-warnings/{0}")>]
member this.CryptDeriveKey : string * string * int * byte[] -> byte[]
Public Function CryptDeriveKey (algname As String, alghashname As String, keySize As Integer, rgbIV As Byte()) As Byte()
Parameters
- algname
- String
The algorithm name for which to derive the key.
- alghashname
- String
The hash algorithm name to use to derive the key.
- keySize
- Int32
The size of the key, in bits, to derive.
- rgbIV
- Byte[]
The initialization vector (IV) to use to derive the key.
Returns
The derived key.
- Attributes
Exceptions
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.
Remarks
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.
Applies to
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