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A good view on the computing power over the last 20 years.
When the standard was written in the year 2000 the recommended minimum number of iterations was 1,000, but the parameter is intended to be increased over time as CPU speeds increase. A Kerberos standard in 2005 recommended 4,096 iterations;[1] Apple reportedly used 2,000 for iOS 3, and 10,000 for iOS 4;[4] while LastPass in 2011 used 5,000 iterations for JavaScript clients and 100,000 iterations for server-side hashing.[5] In 2021, OWASP recommended to use 310,000 iterations for PBKDF2-HMAC-SHA256 and 120,000 for PBKDF2-HMAC-SHA512.
