FPakSignatureFile Struct Reference

#include <IPlatformFilePak.h>

Public Types
enum class	EVersion { Invalid , First , Last , Latest = Last - 1 }

Public Member Functions
void	SetChunkHashesAndSign (const TArray< TPakChunkHash > &InChunkHashes, const TArrayView< uint8 > &InSignatureData, const FRSAKeyHandle InKey)
void	Serialize (FArchive &Ar)
bool	DecryptSignatureAndValidate (const FRSAKeyHandle InKey, const FString &InFilename)
FSHAHash	ComputeCurrentPrincipalHash () const
FSHAHash	ComputeCurrentMasterHash () const

Public Attributes
EVersion	Version = EVersion::Latest
TArray< uint8 >	EncryptedHash
FSHAHash	DecryptedHash
TArray< uint8 >	SignatureData
TArray< TPakChunkHash >	ChunkHashes

Static Public Attributes
static const uint32	Magic = 0x73832DAA

Detailed Description

Structure which describes the content of the pak .sig files

Member Enumeration Documentation

EVersion

enum class FPakSignatureFile::EVersion

strong

Enumerator
Invalid
First
Last
Latest

Member Function Documentation

ComputeCurrentMasterHash()

FSHAHash FPakSignatureFile::ComputeCurrentMasterHash ( ) const

inline

ComputeCurrentPrincipalHash()

FSHAHash FPakSignatureFile::ComputeCurrentPrincipalHash ( ) const

inline

Helper function for computing the SHA1 hash of the current chunk CRC array

DecryptSignatureAndValidate()

bool FPakSignatureFile::DecryptSignatureAndValidate ( const FRSAKeyHandle  InKey, const FString &  InFilename  )

inline

Decrypt the chunk CRCs hash and validate that it matches the current one

Serialize()

void FPakSignatureFile::Serialize ( FArchive &  Ar )

inline

Serialize/deserialize this object to/from an FArchive

SetChunkHashesAndSign()

void FPakSignatureFile::SetChunkHashesAndSign ( const TArray< TPakChunkHash > &  InChunkHashes, const TArrayView< uint8 > &  InSignatureData, const FRSAKeyHandle  InKey  )

inline

Initialize and hash the CRC list then use the provided private key to encrypt the hash

Member Data Documentation

ChunkHashes

TArray<TPakChunkHash> FPakSignatureFile::ChunkHashes

DecryptedHash

FSHAHash FPakSignatureFile::DecryptedHash

EncryptedHash

TArray<uint8> FPakSignatureFile::EncryptedHash

Magic

const uint32 FPakSignatureFile::Magic = 0x73832DAA

static

SignatureData

TArray<uint8> FPakSignatureFile::SignatureData

Version

EVersion FPakSignatureFile::Version = EVersion::Latest

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The documentation for this struct was generated from the following file:

• Engine/Source/Runtime/PakFile/Public/IPlatformFilePak.h