CoreCrypto: test cases for hmac-sha{256,384,512}
CoreCrypto: test cases for hmac-sha{256,384,512}

YaccConstructor/FStar,FStarLang/FStar,MallabaevAzamat/FStar,hoheinzollern/FStar,A-Manning/FStar,MallabaevAzamat/FStar,FStarLang/FStar,A-Manning/FStar,MallabaevAzamat/FStar,A-Manning/FStar,MallabaevAzamat/FStar,YaccConstructor/FStar,hoheinzollern/FStar,FStarLang/FStar,hoheinzollern/FStar,hoheinzollern/FStar,YaccConstructor/FStar,YaccConstructor/FStar