From 9e1dd73e55e095b8e8b4264897c4d21fcdcdb2ae Mon Sep 17 00:00:00 2001
From: Jakob Unterwurzacher
Date: Thu, 2 Sep 2021 11:33:06 +0200
Subject: -speed: add XChaCha20-Poly1305-OpenSSL

$ ./gocryptfs -speed
gocryptfs v2.1-56-gdb1466f-dirty.stupidchacha; go-fuse v2.1.1-0.20210825171523-3ab5d95a30ae; 2021-09-02 go1.17 linux/amd64
AES-GCM-256-OpenSSL       	 529.53 MB/s
AES-GCM-256-Go            	 833.85 MB/s	(selected in auto mode)
AES-SIV-512-Go            	 155.27 MB/s
XChaCha20-Poly1305-Go     	 715.33 MB/s	(use via -xchacha flag)
XChaCha20-Poly1305-OpenSSL	 468.94 MB/s

https://github.com/rfjakob/gocryptfs/issues/452
---
 internal/cryptocore/cryptocore.go | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'internal/cryptocore/cryptocore.go')

diff --git a/internal/cryptocore/cryptocore.go b/internal/cryptocore/cryptocore.go
index 8fb7936..1b692ff 100644
--- a/internal/cryptocore/cryptocore.go
+++ b/internal/cryptocore/cryptocore.go
@@ -48,6 +48,9 @@ var BackendAESSIV AEADTypeEnum = AEADTypeEnum{"AES-SIV-512-Go", siv_aead.NonceSi
 // "XChaCha20-Poly1305-Go" in gocryptfs -speed.
 var BackendXChaCha20Poly1305 AEADTypeEnum = AEADTypeEnum{"XChaCha20-Poly1305-Go", chacha20poly1305.NonceSizeX}
 
+// BackendXChaCha20Poly1305OpenSSL specifies XChaCha20-Poly1305-OpenSSL.
+var BackendXChaCha20Poly1305OpenSSL AEADTypeEnum = AEADTypeEnum{"XChaCha20-Poly1305-OpenSSL", chacha20poly1305.NonceSizeX}
+
 // CryptoCore is the low level crypto implementation.
 type CryptoCore struct {
 	// EME is used for filename encryption.
-- 
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