Energy.Base.Hash Class Reference

Hashing functions for sequences of characters or bytes More...

Static Public Member Functions
static uint	CRC (string value)
	For each characters do a 5-bit left circular shift and XOR in character numeric value (CRC variant) More...
static uint	CRC2 (string value)
	For each characters do a 5-bit left circular shift and XOR in character numeric value (CRC variant) More...
static uint	PJW (string value)
	For each characters add character numeric value and left shift by 4 bits (PJW hash) More...
static string	MD5 (string text, Encoding encoding)
	Return MD5 for a string. More...
static string	MD5 (string text)
	Return MD5 for a string. More...
static string	SHA1 (string text, Encoding encoding)
	Return SHA1 for a string. More...
static string	SHA1 (string text)
	Return SHA1 for a string. More...
static string	SHA256 (string text, Encoding encoding)
	Return SHA1 for a string. More...
static string	SHA256 (string text)
	Return SHA1 for a string. More...

Detailed Description

Hashing functions for sequences of characters or bytes

Member Function Documentation

CRC()

static uint Energy.Base.Hash.CRC ( string  value )

static

For each characters do a 5-bit left circular shift and XOR in character numeric value (CRC variant)

Parameters

value

Returns

32-bit hash value for a string (uint)

CRC2()

static uint Energy.Base.Hash.CRC2 ( string  value )

static

For each characters do a 5-bit left circular shift and XOR in character numeric value (CRC variant)

Parameters

value

Returns

MD5() [1/2]

static string Energy.Base.Hash.MD5 ( string  text, Encoding  encoding  )

static

Return MD5 for a string.

Parameters

text	Source text to calculate hash from
encoding	Text encoding

Returns

string

MD5() [2/2]

static string Energy.Base.Hash.MD5 ( string  text )

static

Return MD5 for a string.

Parameters

text

string

Returns

string

PJW()

static uint Energy.Base.Hash.PJW ( string  value )

static

For each characters add character numeric value and left shift by 4 bits (PJW hash)

Aho, Sethi, and Ullman pp. 434-438

Parameters

value

Returns

24-bit hash value for a string (uint)

SHA1() [1/2]

static string Energy.Base.Hash.SHA1 ( string  text, Encoding  encoding  )

static

Return SHA1 for a string.

Parameters

text	Source text to calculate hash from
encoding	Text encoding

Returns

SHA1 hash in hex format

SHA1() [2/2]

static string Energy.Base.Hash.SHA1 ( string  text )

static

Return SHA1 for a string.

Parameters

text	Source text to calculate hash from

Returns

SHA1 hash in hex format

SHA256() [1/2]

static string Energy.Base.Hash.SHA256 ( string  text, Encoding  encoding  )

static

Return SHA1 for a string.

Parameters

text	Source text to calculate hash from
encoding	Text encoding

Returns

SHA1 hash in hex format

SHA256() [2/2]

static string Energy.Base.Hash.SHA256 ( string  text )

static

Return SHA1 for a string.

Parameters

text	Source text to calculate hash from

Returns

SHA1 hash in hex format

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

• Hash.cs