From 278fbd4892fafb5acf26f0ec3876a6ea23b9a9f1 Mon Sep 17 00:00:00 2001
From: qmuntal <qmuntaldiaz@microsoft.com>
Date: Tue, 7 Jan 2025 17:48:00 +0100
Subject: [PATCH] simplify supportsSHAKE

---
 cshake.go | 14 +-------------
 1 file changed, 1 insertion(+), 13 deletions(-)

diff --git a/cshake.go b/cshake.go
index d08e219..578882a 100644
--- a/cshake.go
+++ b/cshake.go
@@ -74,19 +74,7 @@ func supportsSHAKE(size int) bool {
 	if v, ok := cacheSHAKESupported.Load(size); ok {
 		return v.(bool)
 	}
-	alg := loadShake(size)
-	if alg == nil {
-		cacheSHAKESupported.Store(size, false)
-		return false
-	}
-	// EVP_MD objects can be non-nil even when they can't be used
-	// in a EVP_MD_CTX, e.g. MD5 in FIPS mode. We need to prove
-	// if they can be used by passing them to a EVP_MD_CTX.
-	var supported bool
-	if ctx := C.go_openssl_EVP_MD_CTX_new(); ctx != nil {
-		supported = C.go_openssl_EVP_DigestInit_ex(ctx, alg.md, nil) == 1
-		C.go_openssl_EVP_MD_CTX_free(ctx)
-	}
+	supported := loadShake(size) != nil
 	cacheSHAKESupported.Store(size, supported)
 	return supported
 }