1. An apparatus for performing cryptographic operations, comprising: a cryptographic instruction, received by a computing device as part of an instruction flow executing on said computing device, wherein said cryptographic instruction prescribes one of the cryptographic operations, and wherein said cryptographic instruction prescribes that a provided cryptographic key be expanded into a corresponding key schedule for employment during execution of said one of the cryptographic operations; keygen logic, operatively coupled to said cryptographic instruction, configured to direct said computing device to expand said provided cryptographic key into said corresponding key schedule; and execution logic, operatively coupled to said keygen logic, configured to expand said provided cryptographic key into said corresponding key schedule.