B4J Question [SOLVED] How to get a simple sha256 of a string?

[Mashiane]

Hi

I just took a peek at encryption in b4j. A little confused.

How do I just get a 'sha 256' encryption result of a string?

Thanks.

 

[aeric]

SHA-256 is actually a hashing algorithm, not Encryption. I think i have SHA256 method in my Encryption.bas in Web API 2 optional modules. In future I will rename my module as Hashing.

Public Sub SHA256 (str As String) As String
    Dim data() As Byte
    Dim MD As MessageDigest
    Dim BC As ByteConverter

    data = BC.StringToBytes(str, "UTF8")
    data = MD.GetMessageDigest(data, "SHA-256")
    Return BC.HexFromBytes(data).ToLowerCase
End Sub

 

[Mashiane]

Dim MD As MessageDigest

Which lib in b4j should i reference for this?

Update: Found it:

Base64 and Encryption library

Here's a library that, for the moment, can perform Base64 encoding and decoding and symmetric algorithm encryption and decryption. Tested symmetric algorithms are DES, Triple DES and AES (Rijndael). As the Java encryption rountines are all byte array oriented you will need my ByteConverter...

www.b4x.com

 

[TILogistic]

just a test of possible encryptions

    Log(Encryption("Hello", "MD5"))
    Log(Encryption("Hello", "SHA-1"))
    Log(Encryption("Hello", "SHA-224"))
    Log(Encryption("Hello", "SHA-256"))
    Log(Encryption("Hello", "SHA-384"))
    Log(Encryption("Hello", "SHA-512"))

Public Sub Encryption (Text As String, Algorithm As String) As String
    Dim MD As MessageDigest, BC As ByteConverter
    Dim Data() As Byte = MD.GetMessageDigest(BC.StringToBytes(Text, "UTF8"), Algorithm)
    Return BC.HexFromBytes(Data).ToLowerCase
End Sub

8b1a9953c4611296a827abf8c47804d7
f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0
4149da18aa8bfc2b1e382c6c26556d01a92c261b6436dad5e3be3fcc
185f8db32271fe25f561a6fc938b2e264306ec304eda518007d1764826381969
3519fe5ad2c596efe3e276a6f351b8fc0b03db861782490d45f7598ebd0ab5fd5520ed102f38c4a5ec834e98668035fc
3615f80c9d293ed7402687f94b22d58e529b8cc7916f8fac7fddf7fbd5af4cf777d3d795a7a00a16bf7e7f3fb9561ee9baae480da9fe7a18769e71886b03f315

Test Web

MD5 Encrypt/Decrypt Online | 10015 Tools

Online MD5 Encrypt/Decrypt is a free tool for encrypting and decrypting MD5 hashes. MD5 encryption function is irreversible, that means there is no direct method for MD5 decryption. Trial & error method is used for MD5 decryption. Millions of trials are made for cracking MD5 hashes.

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