using the 'compute intermediate // message digest' (KIMD) and 'compute last message digest' (KLMD) // instructions to compute SHA-3 and SHAKE hashes on IBM Z. See // [z/Architecture Principles of Operation, Fourteen Edition]. // // [z/Architecture Principles of Operation, Fourteen Edition]: https://www.ibm.com/docs/en/module_1678991624569/pdf/SA22-7832-13.pdf var useSHA3 = cpu.S390XHasSHA3 func init() { // CP Assist for Cryptographic Functions (CPACF) impl.Register("sha3", "CPACF", &useSHA3) } func...