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FPakSignatureFile

Structure which describes the content of the pak .sig files

References

Module	PakFile
Header	/Engine/Source/Runtime/PakFile/Public/IPlatformFilePak.h
Include	#include "IPlatformFilePak.h"

Syntax

struct FPakSignatureFile

Remarks

Structure which describes the content of the pak .sig files

Variables

	Name	Description
TArray< TPakChu...	ChunkHashes	CRCs of each contiguous 64kb block of the pak file.
FSHAHash	DecryptedHash	SHA1 hash of the chunk CRC data. Only valid after calling DecryptSignatureAndValidate.
TArray< uint8 >	EncryptedHash	RSA encrypted hash.
TArray< uint8 >	SignatureData	The actual array of data that was encrypted in the RSA block. Contains the chunk table hash and also other custom data related to the pak file.
EVersion	Version	Sig file version. Set to Legacy if the sig file is of an old version.

Functions

	Name	Description
FSHAHash	ComputeCurrentMasterHash()
FSHAHash	ComputeCurrentPrincipalHash()	Helper function for computing the SHA1 hash of the current chunk CRC array
bool	DecryptSignatureAndValidate ( const FRSAKeyHandle InKey, const FString& InFilename )	Decrypt the chunk CRCs hash and validate that it matches the current one
void	Serialize ( FArchive& Ar )	Serialize/deserialize this object to/from an FArchive
void	SetChunkHashesAndSign ( const TArray< TPakChunkHash >& InC..., const TArrayView< uint8 >& InSigna..., const FRSAKeyHandle InKey )	Initialize and hash the CRC list then use the provided private key to encrypt the hash

Enums

	Name	Description
	EVersion

Constants

Name	Description
Magic	Magic number that tells us we're dealing with the new format sig files.

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