core/crypto/aead: Initial import

core/crypto/aes/aes_ctr.odin

@@ -20,7 +20,7 @@ Context_CTR :: struct {
 }
 
 // init_ctr initializes a Context_CTR with the provided key and IV.
-init_ctr :: proc(ctx: ^Context_CTR, key, iv: []byte, impl := Implementation.Hardware) {
+init_ctr :: proc(ctx: ^Context_CTR, key, iv: []byte, impl := DEFAULT_IMPLEMENTATION) {
 	if len(iv) != CTR_IV_SIZE {
 		panic("crypto/aes: invalid CTR IV size")
 	}

core/crypto/aes/aes_ecb.odin

@@ -12,7 +12,7 @@ Context_ECB :: struct {
 }
 
 // init_ecb initializes a Context_ECB with the provided key.
-init_ecb :: proc(ctx: ^Context_ECB, key: []byte, impl := Implementation.Hardware) {
+init_ecb :: proc(ctx: ^Context_ECB, key: []byte, impl := DEFAULT_IMPLEMENTATION) {
 	init_impl(&ctx._impl, key, impl)
 	ctx._is_initialized = true
 }

core/crypto/aes/aes_gcm.odin

@@ -26,7 +26,7 @@ Context_GCM :: struct {
 }
 
 // init_gcm initializes a Context_GCM with the provided key.
-init_gcm :: proc(ctx: ^Context_GCM, key: []byte, impl := Implementation.Hardware) {
+init_gcm :: proc(ctx: ^Context_GCM, key: []byte, impl := DEFAULT_IMPLEMENTATION) {
 	init_impl(&ctx._impl, key, impl)
 	ctx._is_initialized = true
 }

core/crypto/aes/aes_impl.odin

@@ -10,6 +10,10 @@ Context_Impl :: union {
 	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()`).