There is a lot of information about the location of the various namespaces for Metro in the link to the Metro style app .
I'm not sure about MD5, but hashing for SHA is in Windows.Security.Cryptography.Certificates
Obviously, we donβt know if you really need MD5, but if you do not (i.e. you are not talking to something else waiting for MD5), then no - this is often hashing for people simply because it is better known but others are often better for various reasons.
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