core/crypto: Switch to using ensure

core/crypto/legacy/md5/md5.odin

@@ -53,7 +53,7 @@ init :: proc(ctx: ^Context) {
 
 // update adds more data to the Context.
 update :: proc(ctx: ^Context, data: []byte) {
-	assert(ctx.is_initialized)
+	ensure(ctx.is_initialized)
 
 	for i := 0; i < len(data); i += 1 {
 		ctx.data[ctx.datalen] = data[i]
@@ -72,11 +72,8 @@ update :: proc(ctx: ^Context, data: []byte) {
 // Iff finalize_clone is set, final will work on a copy of the Context,
 // which is useful for for calculating rolling digests.
 final :: proc(ctx: ^Context, hash: []byte, finalize_clone: bool = false) {
-	assert(ctx.is_initialized)
-
-	if len(hash) < DIGEST_SIZE {
-		panic("crypto/md5: invalid destination digest size")
-	}
+	ensure(ctx.is_initialized)
+	ensure(len(hash) >= DIGEST_SIZE, "crypto/md5: invalid destination digest size")
 
 	ctx := ctx
 	if finalize_clone {