C# Class StreamCryptor.Helper.Utils

Show file Open project: bitbeans/StreamCryptor

Public Methods

Method	Description
AddPkcs7Padding ( byte data, int paddingLength ) : byte[]	Fill up an array with Pkcs7 padding.
GetChecksum ( byte array ) : string	Returns a SHA256 byte[] checksum.
GetChecksum ( string path ) : string	Returns a SHA256 file checksum.
GetEphemeralEncryptionKey ( byte ephemeralKey ) : byte[]	Extract the encryption key from the ephemeralKey.
GetEphemeralHashKey ( byte ephemeralKey ) : byte[]	Extract the hash key from the ephemeralKey.
GetRandomFileName ( int length, string fileExtension ) : string	Generates a random filename of given length.
IntegerToLittleEndian ( int data ) : byte[]	Converts an integer to a little endian byte array.
PaddedByteArrayToString ( byte paddedByteArray ) : string	Converts a padded byte array to a unpadded string.
RemovePkcs7Padding ( byte paddedByteArray ) : byte[]	Removes the Pkcs7 padding of an array.

Method	Description
StringToPaddedByteArray ( string str, int paddingLength ) : byte[]

Fill up an array with Pkcs7 padding.

public static AddPkcs7Padding ( byte data, int paddingLength ) : byte[]
data	byte	The source array.
paddingLength	int	The length of the padding.
return	byte[]

Returns a SHA256 byte[] checksum.

public static GetChecksum ( byte array ) : string
array	byte	A byte array.
return	string

Returns a SHA256 file checksum.

public static GetChecksum ( string path ) : string
path	string	The full path.
return	string

Extract the encryption key from the ephemeralKey.

ephemeralKey

public static GetEphemeralEncryptionKey ( byte ephemeralKey ) : byte[]
ephemeralKey	byte	The 64 byte ephemeralKey.
return	byte[]

Extract the hash key from the ephemeralKey.

ephemeralKey

public static GetEphemeralHashKey ( byte ephemeralKey ) : byte[]
ephemeralKey	byte	The 64 byte ephemeralKey.
return	byte[]

Generates a random filename of given length.

A file extension must start with: .

public static GetRandomFileName ( int length, string fileExtension ) : string
length	int	length of the random string.
fileExtension	string	a file extension
return	string

Converts an integer to a little endian byte array.

public static IntegerToLittleEndian ( int data ) : byte[]
data	int	An integer.
return	byte[]

Converts a padded byte array to a unpadded string.

public static PaddedByteArrayToString ( byte paddedByteArray ) : string
paddedByteArray	byte	The padded byte array.
return	string

Removes the Pkcs7 padding of an array.

public static RemovePkcs7Padding ( byte paddedByteArray ) : byte[]
paddedByteArray	byte	The padded array.
return	byte[]