Re: How to hash SHA256 from string?

[zoujiaqing via Digitalmars-d-learn]

Thank u every one ;)

Use botan so easy:
```D
import std.stdio;
import botan;
void main()
{
    string appKey = 
"11111111111111111111111111111111111111111111111111111";

    auto sha256 = retrieveHash("SHA-256").clone();
    sha256.update(appKey);

    string sign = 
sha256.finished()[].toHexString!(LetterCase.lower);

    writeln("sign: %s", sign);
}
```