SHA-224 is a cryptographic hash function that gives 112 bits of security.
Abstract representation of a sha224 digest.
fromString : String -> Digest
Create a digest from a String
.
"hello world"
|> SHA224.fromString
|> SHA224.toHex
--> "2f05477fc24bb4faefd86517156dafdecec45b8ad3cf2522a563582b"
fromBytes : Bytes -> Digest
Create a digest from a Bytes
import Bytes.Encode as Encode
import Bytes exposing (Bytes, Endianness(..))
buffer : Bytes
buffer = Encode.encode (Encode.unsignedInt32 BE 42)
SHA224.fromBytes buffer
|> SHA224.toHex
--> "793ce43981dc8ea9c80d5518905c629b54dec6c94152e7dbb08a4177"
fromByteValues : List Basics.Int -> Digest
Create a digest from integer byte values. Values are considered mod 256, which means that larger than 255 overflow.
SHA224.fromByteValues
[72, 105, 33, 32, 240, 159, 152, 132 ]
--> SHA224.fromString "Hi! 😄"
[0x00, 0xFF, 0x34, 0xA5]
|> SHA224.fromByteValues
|> SHA224.toBase64
--> "XNMoqDRg7RdO+hXuACw+BWAVTd8aTNqXyjz35w=="
toHex : Digest -> String
Represent the digest as a string of hexadecimal digits.
"And our friends are all aboard"
|> SHA224.fromString
|> SHA224.toHex
--> "43baf0c15656c9c0ecce1e4ccb8491e6e5fe01c50e33d73338e899cb"
toBase64 : Digest -> String
Represent the digest as its base-64 encoding.
"Many more of them live next door"
|> SHA224.fromString
|> SHA224.toBase64
--> "jGqILHEjFHl4RGN0oaRtFhktytsyncZyOHob4g=="
toBytes : Digest -> Bytes
Turn a digest into Bytes
. The digest is stored as 7 big-endian 32-bit unsigned integers, so the width is 28 bytes or 224 bits.
toByteValues : Digest -> List Basics.Int
Get the individual byte values as integers.
"And the band begins to play"
|> SHA224.fromString
|> SHA224.toByteValues
--> [ 0xac, 0x41, 0xa7, 0x63
--> , 0x89, 0xc4, 0xe1, 0x5a
--> , 0x7e, 0x3b, 0x9d, 0x4a
--> , 0x24, 0x20, 0xef, 0xd0
--> , 0x32, 0x78, 0xd8, 0xfc
--> , 0xcb, 0x23, 0x39, 0xa1
--> , 0xe6, 0xaf, 0xcd, 0x18
--> ]