Is there any other options to CHECKSUM?

For a data cleansing process I'm working on, I'm creating a new key, based on a combination of name + address.
I wanted to use something in TSQL that will allow me to create an unique key based on an string. 
What's the most modern solution for the question above in SQL 2012?

Please explore hashbytes. The following is the snippet from BOL
"CHECKSUM satisfies the properties of a hash function: CHECKSUM applied over any two lists of expressions returns the same value if the corresponding elements of the two lists have the same type and are equal when compared using the equals (=) operator.
For this definition, null values of a specified type are considered to compare as equal. If one of the values in the expression list changes, the checksum of the list also generally changes. However, there is a small chance that the checksum will not change.
For this reason, we do not recommend using CHECKSUM to detect whether values have changed, unless your application can tolerate occasionally missing a change. Consider using
HashBytes instead. When an MD5 hash algorithm is specified, the probability of HashBytes returning the same result for two different inputs is much lower than that of CHECKSUM."

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