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package aes
import "core:crypto/_aes/ct64"
import "core:mem"
import "core:reflect"
@(private)
Context_Impl :: union {
ct64.Context,
Context_Impl_Hardware,
}
// DEFAULT_IMPLEMENTATION is the implementation that will be used by
// default if possible.
DEFAULT_IMPLEMENTATION :: Implementation.Hardware
// Implementation is an AES implementation. Most callers will not need
// to use this as the package will automatically select the most performant
// implementation available (See `is_hardware_accelerated()`).
Implementation :: enum {
Portable,
Hardware,
}
@(private)
init_impl :: proc(ctx: ^Context_Impl, key: []byte, impl: Implementation) {
impl := impl
if !is_hardware_accelerated() {
impl = .Portable
}
switch impl {
case .Portable:
reflect.set_union_variant_typeid(ctx^, typeid_of(ct64.Context))
ct64.init(&ctx.(ct64.Context), key)
case .Hardware:
reflect.set_union_variant_typeid(ctx^, typeid_of(Context_Impl_Hardware))
init_impl_hw(&ctx.(Context_Impl_Hardware), key)
}
}
@(private)
reset_impl :: proc "contextless" (ctx: ^Context_Impl) {
mem.zero_explicit(ctx, size_of(Context_Impl))
}
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