README
¶
go-md4
Package md4 implements the MD4 cryptographic hash algorithm as per IETF RFC-1320, for the Go programming language.
Note that MD4 is no longer considered secure. However, it may still be useful for some non-secure (and historical) use-cases.
Documention
Online documentation, which includes examples, can be found at: http://godoc.org/github.com/reiver/go-md4
Examples
Here is a simple example of calculating the MD4 digest of data contained in a []byte:
import "github.com/reiver/go-md4"
// ...
var data []byte = []byte("Hello world!")
digest := md4.Sum(data)
Here is a more complex example of putting data into the an MD4 hasher in multiple pieces.
import "github.com/reiver/go-md4"
// ...
hasher := md4.New()
// This is equivalent to writing:
//
// []byte("once+twice-thrice_fource")
hasher.Write([]byte("once"))
hasher.Write([]byte("+"))
hasher.Write([]byte("twice"))
hasher.Write([]byte("-"))
hasher.Write([]byte("thrice"))
hasher.Write([]byte("_"))
hasher.Write([]byte("fource"))
digest := hasher.Sum(nil)
Import
To import package md4 use import code like the following:
import "github.com/reiver/go-md4"
Installation
To install package md4 do the following:
GOPROXY=direct go get github.com/reiver/go-md4
Author
Package md4 was written by Charles Iliya Krempeaux
Documentation
¶
Index ¶
Examples ¶
Constants ¶
const BlockSize = 64
BlockSize is the size of an MD4 block measured in bytes.
The size of an MD4 block 64 bytes (i.e., 512 bits).
const Size = 16
Size is the size of an MD4 digest (checksum) measured in bytes.
The size of an MD4 digest 16 bytes (i.e., 128 bits). For example:
// 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
[16]byte{0x31,0xd6,0xcf,0xe0,0xd1,0x6a,0xe9,0x31,0xb7,0x3c,0x59,0xd7,0xe0,0xc0,0x89,0xc0}
Note that if you are representing an MD4 digest in hexadecimal, then it will double the number of characters to 32 bytes. For example:
"31d6cfe0d16ae931b73c59d7e0c089c0"
Or, if you include the "0x" prefix in front of the hexadecimal representation, then it will be 32+2=34 bytes long:
0x31d6cfe0d16ae931b73c59d7e0c089c0
Size represents the length of the MD4 digest in a binary representation.
Variables ¶
This section is empty.
Functions ¶
func New ¶
New returns a hash.Hash that calculates an MD4 digest (checksum) using the MD4 cryptographic hash-function.
Example ¶
package main
import (
"fmt"
"io"
"github.com/reiver/go-md4"
)
func main() {
hasher := md4.New()
// “Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.”
// ⸺ Rumi
io.WriteString(hasher, "“")
io.WriteString(hasher, "Yesterday I was clever, so I wanted to change the world.")
io.WriteString(hasher, " ")
io.WriteString(hasher, "Today I am wise, so I am changing myself.")
io.WriteString(hasher, "”")
io.WriteString(hasher, "\n")
io.WriteString(hasher, "”")
io.WriteString(hasher, "⸺")
io.WriteString(hasher, " ")
io.WriteString(hasher, "Rumi")
digest := hasher.Sum(nil)
fmt.Printf("MD4-DIGEST: 0x%032X\n", digest)
}
Output: MD4-DIGEST: 0xA2D6BDF512B93A4DAD4556D8F9495E5B
func Sum ¶
Sum returns the MD4 digest (checksum) of `data` calculated using the MD4 hash-function.
Example ¶
package main
import (
"fmt"
"github.com/reiver/go-md4"
)
func main() {
var data []byte = []byte("Hello world!")
digest := md4.Sum(data)
fmt.Printf("MD4-DIGEST: 0x%032X\n", digest)
}
Output: MD4-DIGEST: 0x0D7A9DB5A3BED4AE5738EE6D1909649C
Types ¶
This section is empty.
Source Files