C# Class Westwind.Utilities.Encryption

Class that provides a number of encryption utilities

Mostra file Open project: RickStrahl/WestwindToolkit

Public Properties

Property	Type	Description
EncryptionKey	string

Public Methods

Method	Description
BinHexToBinary ( string hex ) : byte[]	Turns a BinHex string that contains raw byte values into a byte array
BinaryToBinHex ( byte data ) : string	Converts a byte array into a BinHex string. Example: 01552233 where the numbers are packed byte values.
ComputeHash ( byte byteData, string hashAlgorithm, byte saltBytes, bool useBinHex = false ) : string	Generates a hash for the given plain text value and returns a base64-encoded result. Before the hash is computed, a random salt is generated and appended to the plain text. This salt is stored at the end of the hash value, so it can be used later for hash verification.
ComputeHash ( string plainText, string hashAlgorithm, byte saltBytes, bool useBinHex = false ) : string	Generates a hash for the given plain text value and returns a base64-encoded result. Before the hash is computed, a random salt is generated and appended to the plain text. This salt is stored at the end of the hash value, so it can be used later for hash verification.
ComputeHash ( string plainText, string hashAlgorithm, string salt, bool useBinHex = false ) : string	Generates a hash for the given plain text value and returns a base64-encoded result. Before the hash is computed, a random salt is generated and appended to the plain text. This salt is stored at the end of the hash value, so it can be used later for hash verification.
DecryptBytes ( byte decryptBuffer, byte encryptionKey ) : byte[]	Decrypts a byte buffer with a byte based encryption key
DecryptBytes ( byte decryptBuffer, string encryptionKey ) : byte[]	Decrypts a Byte array from DES with an Encryption Key.
DecryptBytes ( string decryptString, string encryptionKey, bool useBinHex = false ) : byte[]	Decrypts a string using DES encryption and a pass key that was used for encryption and returns a byte buffer.
DecryptString ( string decryptString, byte encryptionKey, bool useBinHex = false ) : string	Decrypts a string using DES encryption and a pass key that was used for encryption. Class wwEncrypt
DecryptString ( string decryptString, string encryptionKey, bool useBinHex = false ) : string	Decrypts a string using DES encryption and a pass key that was used for encryption. Class wwEncrypt
EncryptBytes ( byte inputBytes, byte encryptionKey ) : byte[]	Encrypts a byte buffer with a byte encryption key
EncryptBytes ( byte inputBytes, string encryptionKey ) : byte[]	Encodes a stream of bytes using DES encryption with a pass key. Lowest level method that handles all work.
EncryptBytes ( string inputString, string encryptionKey ) : byte[]	Encrypts a string into bytes using DES encryption with a Passkey.
EncryptString ( string inputString, byte encryptionKey, bool useBinHex = false ) : string	Encrypts a string using Triple DES encryption with a two way encryption key.String is returned as Base64 or BinHex encoded value rather than binary.
EncryptString ( string inputString, string encryptionKey, bool useBinHex = false ) : string	Encrypts a string using Triple DES encryption with a two way encryption key.String is returned as Base64 encoded value rather than binary.
GZipFile ( string Filename, string OutputFile ) : bool	Encodes one file to another file that is gzip compressed. File is overwritten if it exists and not locked.
GZipMemory ( byte buffer ) : byte[]	GZip encodes a memory buffer to a compressed memory buffer
GZipMemory ( string Input ) : byte[]	Encodes a string to a gzip compressed memory buffer
GZipMemory ( string Filename, bool IsFile ) : byte[]	Encodes a file to a gzip memory buffer
GetChecksumFromBytes ( byte fileData, string mode ) : string	Create a SHA256 or MD5 checksum from a bunch of bytes
GetChecksumFromFile ( string file, string mode, bool useBinHex = false ) : string	Creates an SHA256 or MD5 checksum of a file
ProtectBytes ( byte encryptBytes, byte key, DataProtectionScope scope = DataProtectionScope.LocalMachine ) : byte[]	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
ProtectBytes ( byte encryptBytes, string key, DataProtectionScope scope = DataProtectionScope.LocalMachine ) : byte[]	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
ProtectString ( string encryptString, byte key, DataProtectionScope scope = DataProtectionScope.LocalMachine, bool useBinHex = false ) : string	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
ProtectString ( string encryptString, string key, DataProtectionScope scope = DataProtectionScope.LocalMachine, bool useBinHex = false ) : string	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
UnprotectBytes ( byte encryptBytes, byte key, DataProtectionScope scope = DataProtectionScope.LocalMachine ) : byte[]	Decrypts bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
UnprotectBytes ( byte encryptBytes, string key, DataProtectionScope scope = DataProtectionScope.LocalMachine ) : byte[]	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
UnprotectString ( string encryptString, byte key, DataProtectionScope scope = DataProtectionScope.LocalMachine, bool useBinHex = false ) : string	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES
UnprotectString ( string encryptString, string key, DataProtectionScope scope = DataProtectionScope.LocalMachine, bool useBinHex = false ) : string	Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine DO NOT USE FOR DATA THAT WILL CROSS MACHINE BOUNDARIES

Private Methods

Method	Description
ParseHexChar ( char c ) : int

Method Details

BinHexToBinary() public static method

Turns a BinHex string that contains raw byte values into a byte array

public static BinHexToBinary ( string hex ) : byte[]
hex	string	BinHex string (011a031f) just two byte hex digits strung together)
return	byte[]

BinaryToBinHex() public static method

Converts a byte array into a BinHex string. Example: 01552233 where the numbers are packed byte values.

public static BinaryToBinHex ( byte data ) : string
data	byte	Raw data to send
return	string

ComputeHash() public static method

Generates a hash for the given plain text value and returns a base64-encoded result. Before the hash is computed, a random salt is generated and appended to the plain text. This salt is stored at the end of the hash value, so it can be used later for hash verification.

public static ComputeHash ( byte byteData, string hashAlgorithm, byte saltBytes, bool useBinHex = false ) : string
byteData	byte	/// Plaintext value to be hashed. ///
hashAlgorithm	string	/// Name of the hash algorithm. Allowed values are: "MD5", "SHA1", /// "SHA256", "SHA384", "SHA512", "HMACMD5", "HMACSHA1", "HMACSHA256", /// "HMACSHA512" (if any other value is specified MD5 will be used). /// /// HMAC algorithms uses Hash-based Message Authentication Code. /// The HMAC process mixes a secret key with the message data, hashes /// the result with the hash function, mixes that hash value with /// the secret key again, and then applies the hash function /// a second time. HMAC hashes are fixed lenght and generally /// much longer than non-HMAC hashes of the same type. /// /// https://msdn.microsoft.com/en-us/library/system.security.cryptography.hmacsha256(v=vs.110).aspx /// /// This value is case-insensitive. ///
saltBytes	byte	/// Optional but recommended salt bytes to apply to the hash. If not passed the /// raw encoding is used. If salt is nullthe raw algorithm is used (useful for /// file hashes etc.) HMAC versions REQUIRE that salt is passed. ///
useBinHex	bool	if true returns the data as BinHex byte pair string. Otherwise Base64 is returned.
return	string

ComputeHash() public static method

public static ComputeHash ( string plainText, string hashAlgorithm, byte saltBytes, bool useBinHex = false ) : string
plainText	string	/// Plaintext value to be hashed. ///
hashAlgorithm	string	/// Name of the hash algorithm. Allowed values are: "MD5", "SHA1", /// "SHA256", "SHA384", "SHA512", "HMACMD5", "HMACSHA1", "HMACSHA256", /// "HMACSHA512" (if any other value is specified MD5 will be used). /// /// HMAC algorithms uses Hash-based Message Authentication Code. /// The HMAC process mixes a secret key with the message data, hashes /// the result with the hash function, mixes that hash value with /// the secret key again, and then applies the hash function /// a second time. HMAC hashes are fixed lenght and generally /// much longer than non-HMAC hashes of the same type. /// /// https://msdn.microsoft.com/en-us/library/system.security.cryptography.hmacsha256(v=vs.110).aspx /// /// This value is case-insensitive. ///
saltBytes	byte
useBinHex	bool	if true returns the data as BinHex byte pair string. Otherwise Base64 is returned.
return	string

ComputeHash() public static method

public static ComputeHash ( string plainText, string hashAlgorithm, string salt, bool useBinHex = false ) : string
plainText	string	/// Plaintext value to be hashed. ///
hashAlgorithm	string	/// Name of the hash algorithm. Allowed values are: "MD5", "SHA1", /// "SHA256", "SHA384", "SHA512", "HMACMD5", "HMACSHA1", "HMACSHA256", /// "HMACSHA512" (if any other value is specified MD5 will be used). /// /// HMAC algorithms uses Hash-based Message Authentication Code. /// The HMAC process mixes a secret key with the message data, hashes /// the result with the hash function, mixes that hash value with /// the secret key again, and then applies the hash function /// a second time. HMAC hashes are fixed lenght and generally /// much longer than non-HMAC hashes of the same type. /// /// https://msdn.microsoft.com/en-us/library/system.security.cryptography.hmacsha256(v=vs.110).aspx /// /// This value is case-insensitive. ///
salt	string	/// Optional but recommended salt string to apply to the hash. If not passed the /// raw encoding is used. If salt is nullthe raw algorithm is used (useful for /// file hashes etc.) HMAC versions REQUIRE that salt is passed. ///
useBinHex	bool	if true returns the data as BinHex byte pair string. Otherwise Base64 is returned.
return	string

DecryptBytes() public static method

Decrypts a byte buffer with a byte based encryption key

public static DecryptBytes ( byte decryptBuffer, byte encryptionKey ) : byte[]
decryptBuffer	byte
encryptionKey	byte
return	byte[]

DecryptBytes() public static method

Decrypts a Byte array from DES with an Encryption Key.

public static DecryptBytes ( byte decryptBuffer, string encryptionKey ) : byte[]
decryptBuffer	byte
encryptionKey	string
return	byte[]

DecryptBytes() public static method

Decrypts a string using DES encryption and a pass key that was used for encryption and returns a byte buffer.

public static DecryptBytes ( string decryptString, string encryptionKey, bool useBinHex = false ) : byte[]
decryptString	string
encryptionKey	string
useBinHex	bool	Returns data in useBinHex format (12afb1c3f1). Otherwise base64 is returned.
return	byte[]

DecryptString() public static method

Decrypts a string using DES encryption and a pass key that was used for encryption. Class wwEncrypt

public static DecryptString ( string decryptString, byte encryptionKey, bool useBinHex = false ) : string
decryptString	string
encryptionKey	byte
useBinHex	bool	Returns data in useBinHex format (12afb1c3f1). Otherwise base64 is returned
return	string

DecryptString() public static method

Decrypts a string using DES encryption and a pass key that was used for encryption. Class wwEncrypt

public static DecryptString ( string decryptString, string encryptionKey, bool useBinHex = false ) : string
decryptString	string
encryptionKey	string
useBinHex	bool	Returns data in useBinHex format (12afb1c3f1). Otherwise base64 is returned.
return	string

EncryptBytes() public static method

Encrypts a byte buffer with a byte encryption key

public static EncryptBytes ( byte inputBytes, byte encryptionKey ) : byte[]
inputBytes	byte
encryptionKey	byte
return	byte[]

EncryptBytes() public static method

Encodes a stream of bytes using DES encryption with a pass key. Lowest level method that handles all work.

public static EncryptBytes ( byte inputBytes, string encryptionKey ) : byte[]
inputBytes	byte
encryptionKey	string
return	byte[]

EncryptBytes() public static method

Encrypts a string into bytes using DES encryption with a Passkey.

public static EncryptBytes ( string inputString, string encryptionKey ) : byte[]
inputString	string
encryptionKey	string
return	byte[]

EncryptString() public static method

Encrypts a string using Triple DES encryption with a two way encryption key.String is returned as Base64 or BinHex encoded value rather than binary.

public static EncryptString ( string inputString, byte encryptionKey, bool useBinHex = false ) : string
inputString	string
encryptionKey	byte
useBinHex	bool	if true returns bin hex rather than base64
return	string

EncryptString() public static method

Encrypts a string using Triple DES encryption with a two way encryption key.String is returned as Base64 encoded value rather than binary.

public static EncryptString ( string inputString, string encryptionKey, bool useBinHex = false ) : string
inputString	string
encryptionKey	string
useBinHex	bool
return	string

GZipFile() public static method

Encodes one file to another file that is gzip compressed. File is overwritten if it exists and not locked.

public static GZipFile ( string Filename, string OutputFile ) : bool
Filename	string
OutputFile	string
return	bool

GZipMemory() public static method

GZip encodes a memory buffer to a compressed memory buffer

public static GZipMemory ( byte buffer ) : byte[]
buffer	byte
return	byte[]

GZipMemory() public static method

Encodes a string to a gzip compressed memory buffer

public static GZipMemory ( string Input ) : byte[]
Input	string
return	byte[]

GZipMemory() public static method

Encodes a file to a gzip memory buffer

public static GZipMemory ( string Filename, bool IsFile ) : byte[]
Filename	string
IsFile	bool
return	byte[]

GetChecksumFromBytes() public static method

Create a SHA256 or MD5 checksum from a bunch of bytes

public static GetChecksumFromBytes ( byte fileData, string mode ) : string
fileData	byte
mode	string	SHA256,SHA512,MD5
return	string

GetChecksumFromFile() public static method

Creates an SHA256 or MD5 checksum of a file

public static GetChecksumFromFile ( string file, string mode, bool useBinHex = false ) : string
file	string
mode	string	SHA256,SHA512,MD5
useBinHex	bool
return	string

ProtectBytes() public static method

Encrypt bytes using the Data Protection API on Windows. This API uses internal keys to encrypt data which is valid for decryption only on the same machine. This is an idea storage mechanism for application registraions, service passwords and other semi-transient data that is specific to the software used on the current machine