The HASHBYTES function provides a simple way to calculate cryptographic hash values in T-SQL. Read on to learn how to use this function and discover its two limitations.
How does SQL Server store its own passwords? Discover which hashing algorithm is used and how you can calculate your own password hash value in T-SQL.
SQL Server stores passwords as salted hash values, preventing us from directly checking or enforcing their strength. However, using PWDCOMPARE we can try to crack them to identify weak ones.
Hash functions calculate a fixed length binary digest of a document. Read on to see what additional requirements turn an ordinary hash function into a cryptographic hash function and what use cases require the use of cryptographic hash functions.