Unreal Engine 4.26 Documentation

Unreal Engine 4.27 Documentation

Unreal Engine 5.0 Documentation

Unreal Engine 5.1 Documentation

Unreal Engine 5.2 Documentation

Unreal Engine 5.3 Documentation

> Unreal Engine API Reference > Runtime > Core > Misc > FSHA1

Light Theme

Dark Theme

FSHA1

Choose your operating system:

Windows

macOS

Linux

References

Module	Core
Header	/Engine/Source/Runtime/Core/Public/Misc/SecureHash.h
Include	#include "Misc/SecureHash.h"

Syntax

class FSHA1

Variables

		Name	Description
	uint32[1]	__reserved1
	uint32[3]	__reserved2
	uint8[64]	m_buffer
	uint32[2]	m_count
	uint8[20]	m_digest
	uint32[5]	m_state

Constructors

	Name	Description
	FSHA1()	Constructor and Destructor.

Destructors

	Name	Description
	~FSHA1()

Functions

		Name	Description
	void	Final()	Finalize hash and report.
	FSHAHash	Finalize()	Finalize hash and return it.
	bool	GetFileSHAHash ( const TCHAR* Pathname, uint8 Hash, bool bIsFullPackageHash )	Gets the stored SHA hash from the platform, if it exists.
	void	GetHash ( uint8* puDest )	Report functions: as pre-formatted and raw data.
	FSHAHash	HashBuffer ( const void* Data, uint64 DataSize )	Calculate the hash on a single block and return it
	void	HashBuffer ( const void* Data, uint64 DataSize, uint8* OutHash )	Calculate the hash on a single block and return it
	void	HMACBuffer ( const void* Key, uint32 KeySize, const void* Data, uint64 DataSize, uint8* OutHash )	Generate the HMAC (Hash-based Message Authentication Code) for a block of data.
	void	InitializeFileHashesFromBuffer ( uint8* Buffer, uint64 BufferSize, bool bDuplicateKeyMemory )	Shared hashes.sha reading code (each platform gets a buffer to the data, then passes it to this function for processing)
	void	Reset()
	void	Update ( const uint8* data, uint64 len )	Update the hash value.
	void	UpdateWithString ( const TCHAR* data, uint32 len )	Update the hash value with string.

Constants

Name	Description
DigestSize
FullFileSHAHashMap	Global map of filename to hash value, filled out in InitializeFileHashesFromBuffer
ScriptSHAHashMap	Global map of filename to hash value, but for script-only SHA hashes