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Updated Library https://www.b4x.com/android/forum/threads/b4x-library-base64-encode-decode-image.../android/forum/threads/base64-encode-decode-image-library.31031/ ) "...in attached the library for...
link: How to use this file? It's very simple, as written above: if it's a png it will remain a p...
link: How to use this file? Just download the library and save it in B4A additional libraries then refre...
link: method. To convert any file to Base64. The library is for B4X (Tested...

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 library to run the demo. EDIT :- Version 1.1 posted. Asymmetric algorithms, Signing and MACs now implemented. See post#2 for details....

= DecodeBase64(Result, "RGVjb2RpbmcgQmFzZTY0IHN0cmluZyB3aXRoIEI0UiEhIQ==") Dim bc As ByteConverter... the length of the decoded data Sub DecodeBase64(Result() As Byte, Text() As Byte) As UInt Dim rawlength... + 1 Loop four(i) = GetBase64Index(Text(si)) Next Result(ri) = Bit... Loop Return length End Sub Sub GetBase64Index(u As Int) As Int If u = 43 Then Return 63...

Farias (code isBase64) remember: Convert bitmap to base64 use Base64EncodeDecodeImage from... Sub isBase64(text As String) As Boolean If Regex.IsMatch("^({4})*({4}|{3}=|{2}==)$"... End Sub Sub convertStringToBase64(text As String) As String Private su As StringUtils Private b() As Byte = text.GetBytes("UTF8") Return su.EncodeBase64(b) End Sub Sub convertBase64ToString(text As String) As String Private su As StringUtils Dim b() As Byte = su...

I noticed the other day that there were quite a few questions regarding decoding base64 image stings, so I quickly put together this simple but effective base64 encode/decode images library for... Base64Con As Base64Convert To get an encoded base64 data stream, and return it as an bitmap ready to load... As String) As Bitmap Or To get an image file, and encode it into an base64 data stream, ready to save...
link: Hello Simpson: Thanx for the library. Can you show me an example of converting a string into a picture and after saving it to an ImageView ? ( DecodeToImage (ImageStr As String) As Bitmap )...

Example: - AES256 encrypt a message with IV and Salt - Base64 encode it - send a http post request to a php script - decrypt in php - send back a AES256 encrypted and Base64 encoded message to... $encrypt_method = "AES-256-CBC"; $total=base64_decode($string); $id=substr($total, 0, 8); $salt=substr($total, 8, 32); $iv=substr($total, 40, 16); $string=Base64_Encode(substr..., $encrypt_method, $pw, 0,$IV); $enc=Base64_encode($id.$Salt.$IV.Base64_decode($enc...

(); // Set the image source to the base64 string img.src = base64Image; // Once the image...); // Get the new base64 image string from the canvas const newBase64Image = canvas...
link: I just realize it can actually even be without the Inner method: Sub AddBorderToBase64Image...
link: I just realize it can actually even be without the Wait method: Sub AddBorderToBase64Image...
link: Base64Image As String = GetDemoImageData Dim result As String ' call and wait for...

(255) As Byte Public b64decoded_len As ULong Add to your code and call the Base64 sub Sub Base64... Sub #if c #include "mbedtls/base64.h" void Base64Encode (B4R::Object* o...
link: I have found the following 2 github pages. The second obviously is for ARM based embeded systems right...
link: Base64, you change it to a sub accepting an argument, you change slightly the C code (b4r_main...
link: it a b4xlib with methods Base64.Encode and Base64.Decode? It's all built in (the mbedtls core...

Hi all. I found this example in some old folders on my pc and decided to share here. it is a simple code to check if a string is base64 hash. This example use a regex. Sub isBase64(text As String... ' TESTA A STRING CODIFICADA COM BASE64 Log(isBase64("ZG91Z2xhc2Zhcmlhcw==")) '=douglasfarias ' TESTA A STRING COM TEXTO Log(isBase64("Test string"))'=dont is a base64 string The result log is true false Credits: stackoverflow, Douglas Farias and...

(encrypted As String) As String Decode a encrypted base64 string and return the decrypted string encrypt (toEncrypt As String) As String Encrypt a string and give back an encrypted and base64 encoded...
link: Convert the jpg to bytes, encrypt the bytes...
link: hello , how to encrypt a jpg file with this lib ? and decrypt it ?...