Does every Android phone support SHA-256
android, hash, message-digest, sha
Solution
All Android devices support SHA-256. The `NoSuchAlgorithmException` indicates that a requested algorithm could not be found and is necessary because the method takes a `String` argument for the algorithm name. If you passed in "foo-256", the method's only recourse is to throw a `NoSuchAlgorithmException` because, for reasons beyond my understanding, there's no algorithm called "foo-256". Assuming you're passing in a name you're sure is an algorithm that Android can use, you'll never see that exception.
Problem
So reading this post: How can I calculate the SHA-256 hash of a string in Android? and the docs: http://developer.android.com/reference/java/security/MessageDigest.html I'm curious; which phones will support SHA-256? In the docs, the line about the 'NoSuchAlgorithmException' makes me think that some phones don't support all algorithms. Before I go implementing this for an app and expecting it to work the same on all phones I want to know if anyone knows anything about this...? I find it strange that the MessageDigest class doesn't have some constants to pick the algorithm you want to use.