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Base64 Decoding in iOS 7+
...ing = "foo"
Encoding
let plainData = plainString.data(using: .utf8)
let base64String = plainData?.base64EncodedString()
print(base64String!) // Zm9v
Decoding
if let decodedData = Data(base64Encoded: base64String!),
let decodedString = String(data: decodedData, encoding: .utf8) {
print(dec...
Binary Data in JSON String. Something better than Base64
...ed as UTF-8). With that in mind, I think the best you can do space-wise is base85 which represents four bytes as five characters. However, this is only a 7% improvement over base64, it's more expensive to compute, and implementations are less common than for base64 so it's probably not a win.
You c...
How to make an HTTP request + basic auth in Swift
...ssword)
let loginData = loginString.data(using: String.Encoding.utf8)!
let base64LoginString = loginData.base64EncodedString()
// create the request
let url = URL(string: "http://www.example.com/")!
var request = URLRequest(url: url)
request.httpMethod = "POST"
request.setValue("Basic \(base64Login...
Why does base64 encoding require padding if the input length is not divisible by 3?
What is the purpose of padding in base64 encoding. The following is the extract from wikipedia:
3 Answers
...
Strange \n in base64 encoded string in Ruby
The inbuilt Base64 library in Ruby is adding some '\n's. I'm unable to find out the reason. For this special example:
6 Ans...
How to display Base64 images in HTML?
I'm having trouble displaying a Base64 image inline.
11 Answers
11
...
App Inventor 2 KIO4_Base64 拓展，更强大的图像Base64编解码工具，解码后...
... App Inventor 2 KIO4_Base64 拓展，更强大的图像Base64编解码工具，解码后的图像可写入到文件
KIO4_Base64 拓展
Base64解码后写入图像文件
« 返回首...
图片处理使用指导 · App Inventor 2 中文网
...圆形头像
案例三：拍照加水印
案例四：照片转 Base64 交给大模型识图
案例五：多步串联
案例六：处理失败时告诉用户原因
常见问题
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完整 .aia 源码与操作指导
图片编辑与...
Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...r in the title is thrown only in Google Chrome, according to my tests. I'm base64 encoding a big XML file so that it can be downloaded:
...
Simple way to encode a string according to a password?
...igenère cipher
It's quick and easy to implement. Something like:
import base64
def encode(key, string):
encoded_chars = []
for i in xrange(len(string)):
key_c = key[i % len(key)]
encoded_c = chr(ord(string[i]) + ord(key_c) % 256)
encoded_chars.append(encoded_c)
...