Class Blake2BCore

The core of the Blake2 hash.

Inheritance

System.Object

Blake2BCore

Implements

System.IDisposable

Inherited Members

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

System.Object.ToString()

Namespace: Isopoh.Cryptography.Blake2b

Assembly: Isopoh.Cryptography.Blake2b.dll

Syntax

public sealed class Blake2BCore : IDisposable

Constructors

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Blake2BCore(SecureArrayCall, LockMemoryPolicy)

Initializes a new instance of the Blake2BCore class.

Declaration

public Blake2BCore(SecureArrayCall secureArrayCall, LockMemoryPolicy lockMemory = LockMemoryPolicy.BestEffort)

Parameters

Type	Name	Description
SecureArrayCall	secureArrayCall	The methods that get called to secure arrays. A null value defaults to SecureArray.DefaultCall.
LockMemoryPolicy	lockMemory	Used to set locking strategy for buffers used in creating the hash. The memory will always be zeroed prior to destruction. The memory is also always pinned so the CLR can't move it and leave extraneous copies floating around in RAM.

Methods

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BytesToUInt64(Byte[], Int32)

Convert a big-endian buffer into a System.UInt64.

Declaration

public static ulong BytesToUInt64(byte[] buf, int offset)

Parameters

Type	Name	Description
System.Byte[]	buf	Buffer holding an 8-byte big-endian ulong.
System.Int32	offset	Offset into the buffer to start reading the ulong.

Returns

Type	Description
System.UInt64	The parsed ulong.

Remarks

No checking is done to verify that an 8-byte value can be read from buf at offset.

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Dispose()

Release unmanaged resources.

Declaration

public void Dispose()

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HashCore(Byte[], Int32, Int32)

Update the hash state.

Declaration

public void HashCore(byte[] array, int start, int count)

Parameters

Type	Name	Description
System.Byte[]	array	Data to use to update the hash state.
System.Int32	start	Index of the first byte in `array` to use.
System.Int32	count	Number of bytes in `array` to use.

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HashFinal()

Return the hash.

Declaration

public byte[] HashFinal()

Returns

Type	Description
System.Byte[]	The 64-byte hash.

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HashFinal(Boolean)

Return the hash.

Declaration

public byte[] HashFinal(bool isEndOfLayer)

Parameters

Type	Name	Description
System.Boolean	isEndOfLayer	True to signal the last node of a layer in tree-hashing mode; false otherwise.

Returns

Type	Description
System.Byte[]	The 64-byte hash.

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HashFinal(Byte[])

Compute the hash.

Declaration

public byte[] HashFinal(byte[] hash)

Parameters

Type	Name	Description
System.Byte[]	hash	Loaded with the hash.

Returns

Type	Description
System.Byte[]	`hash`.

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HashFinal(Byte[], Boolean)

Compute the hash.

Declaration

public byte[] HashFinal(byte[] hash, bool isEndOfLayer)

Parameters

Type	Name	Description
System.Byte[]	hash	Loaded with the hash.
System.Boolean	isEndOfLayer	True to signal the last node of a layer in tree-hashing mode; false otherwise.

Returns

Type	Description
System.Byte[]	`hash`.

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Initialize(UInt64[])

Initialize the hash.

Declaration

public void Initialize(ulong[] config)

Parameters

Type	Name	Description
System.UInt64[]	config	8-element configuration array.

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UInt64ToBytes(UInt64, Byte[], Int32)

Store a ulong into a byte buffer as big-endian.

Declaration

public static void UInt64ToBytes(ulong value, byte[] buf, int offset)

Parameters

Type	Name	Description
System.UInt64	value	The ulong to store.
System.Byte[]	buf	The buffer to load the 8-byte value into.
System.Int32	offset	The offset to start `value` at in `buf`.

Remarks

No checking is done to validate the buffer can store value at offset.

Implements

System.IDisposable