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Crypto.Digest

A core tool of modern cryptography, message digests are a string of digits created by one-way hash function that is practically infeasible to reverse.

Because they are generally fast to compute, they are often used to protect the integrity of files and other data.

Crypto.Digest supports a wide range of commonly used digests and redundancy checking formulas.

For more general information, see https://en.wikipedia.org/wiki/Cryptographic_hash_function

Supported Digests

The following is a list of available digests :

NameSize of Message Digest (bytes)
Crypto.WhirlpoolDigest64
Crypto.SHA3Digest (TSHA3_512)64
Crypto.SHA512Digest64
Crypto.Blake2BDigest (TBlake2B_512)64
Crypto.SHA3Digest (TSHA3_384)48
Crypto.Blake2BDigest (TBlake2B_384)48
Crypto.Ripemd320Digest40
Crypto.SHA3Digest (TSHA3_256)32
Crypto.SHA256Digest32
Crypto.Ripemd256Digest32
Crypto.Blake2BDigest (TBlake2B_256)32
Crypto.SHA3Digest (TSHA3_224)28
Crypto.TigerDigest24
Crypto.SHA1Digest20
Crypto.Ripemd160Digest20
Crypto.Blake2BDigest (TBlake2B_160)20
Crypto.Ripemd128Digest16
Crypto.MD5Digest16

Types

TypeDescription
TNoSuchAlgorithmExceptionThis exception is thrown when a particular cryptographic algorithm is requested but is not available in the environment.
TMessageDigestAn abstract base type for message digest implementations.
TDigestRegisterA register of available message digests and cryptographic functions.

Functions

Function GetMessageDigest:TMessageDigest(name:String)

Gets a digest of the specified name.

A TNoSuchAlgorithmException is thrown if the requested digest is not available.

Example

SuperStrict

Framework brl.standardio
Import Crypto.MD5Digest

Local data:String = "Hello World"

Local digest:TMessageDigest = GetMessageDigest("md5")

If digest Then
    Print digest.Digest(data)
End If


Function ListDigests:TArrayList<String>()

Returns a list of all currently registered digests.

The returned digest names can be used with GetMessageDigest to get a TMessageDigest instance.

Example

SuperStrict

Framework brl.standardio
Import Crypto.MD5Digest
Import Crypto.SHA3Digest

Print "Available digests:"
For Local digest:String = EachIn ListDigests()
    Print "  " + digest
Next


Function BytesToHex:String(bytes:Byte[], uppercase:Int = False)

Returns a hex representation of Byte array bytes.


Function BytesToHex:String(bytes:Byte Ptr, size:Int, uppercase:Int = False)

Returns a hex representation of size bytes.


← Pub.ZLibTMessageDigest →