I have a base64 encoded string i'm trying to decrypt with go. The string contains white spaces which should be ignored. A sample code I'm trying:
s := "eyJ0aHJlZURTU2VydmVyVHJhbnNJRCI6IjEzZmU3MWQ0LWQxMGQtNDIyMC1hMjE2LTIwMDZkMWRkNGNiOCIsImFjc1RyY++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++W5zSUQiOiJkN2M0NWY5OS05NDc4LTQ0YTYtYjFmMi0xMDAwMDAwMDMzNjYiLCJtZXNzYWdlVHlwZSI6IkNSZXEiLCJtZXNzYWdlVmVyc2lvbiI6IjIuMS4wIiwiY2hhbGxlbmdlV2luZG93U2l6ZSI6IjAyIn0%3D"
out, err := base64.URLEncoding.DecodeString(s)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(string(out))
This code returns:
illegal base64 data at input byte 93
After changing the string padding, and using StdEncoding instead of URLEncoding:
s= strings.Replace(s, "%3D", "=", -1)
out, err := base64.StdEncoding.DecodeString(s)
if err != nil {
fmt.Println(err)
return
}
fmt.Println(string(out))
The output will be:
{"threeDSServerTransID":"13fe71d4-d10d-4220-a216-2006d1dd4cb8","acsTrc���������������������������������������������������������������������������nsID":"d7c45f99-9478-44a6-b1f2-100000003366","messageType":"CReq","messageVersion":"2.1.0","challengeWindowSize":"02"}
How can I decrypt the string correctly?