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SymmetricAlgorithm.BlockSize Property

.NET Framework 4.5

Gets or sets the block size, in bits, of the cryptographic operation.

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

public virtual int BlockSize { get; set; }

Property Value

Type: System.Int32
The block size, in bits.

Exceptions

Exception	Condition
CryptographicException	The block size is invalid.

Remarks

The block size is the basic unit of data that can be encrypted or decrypted in one operation. Messages longer than the block size are handled as successive blocks; messages shorter than the block size must be padded with extra bits to reach the size of a block. Valid block sizes are determined by the symmetric algorithm used.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Reference

SymmetricAlgorithm Class

System.Security.Cryptography Namespace

Other Resources

Cryptographic Services

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