From 437ea72cb37acc0b094799eef1bd5ddd207bce22 Mon Sep 17 00:00:00 2001
From: qmuntal <qmuntaldiaz@microsoft.com>
Date: Thu, 5 Dec 2024 18:04:45 +0100
Subject: [PATCH] undo some changes

---
 cipher.go | 8 ++++----
 rc4.go    | 3 +--
 2 files changed, 5 insertions(+), 6 deletions(-)

diff --git a/cipher.go b/cipher.go
index 6f6b56bc..f2e1fece 100644
--- a/cipher.go
+++ b/cipher.go
@@ -178,7 +178,7 @@ func (c *evpCipher) encrypt(dst, src []byte) error {
 	}
 	defer ossl.EVP_CIPHER_CTX_free(enc_ctx)
 
-	if ossl.EVP_EncryptUpdate_wrapper(enc_ctx, unsafe.SliceData(dst), unsafe.SliceData(src), int32(c.blockSize)) != nil {
+	if ossl.EVP_EncryptUpdate_wrapper(enc_ctx, base(dst), base(src), int32(c.blockSize)) != nil {
 		return errors.New("EncryptUpdate failed")
 	}
 	runtime.KeepAlive(c)
@@ -207,7 +207,7 @@ func (c *evpCipher) decrypt(dst, src []byte) error {
 		return errors.New("could not disable cipher padding")
 	}
 
-	ossl.EVP_DecryptUpdate_wrapper(dec_ctx, unsafe.SliceData(dst), unsafe.SliceData(src), int32(c.blockSize))
+	ossl.EVP_DecryptUpdate_wrapper(dec_ctx, base(dst), base(src), int32(c.blockSize))
 	runtime.KeepAlive(c)
 	return nil
 }
@@ -234,7 +234,7 @@ func (x *cipherCBC) CryptBlocks(dst, src []byte) {
 		panic("crypto/cipher: output smaller than input")
 	}
 	if len(src) > 0 {
-		if ossl.EVP_CipherUpdate_wrapper(x.ctx, unsafe.SliceData(dst), unsafe.SliceData(src), int32(len(src))) != nil {
+		if ossl.EVP_CipherUpdate_wrapper(x.ctx, base(dst), base(src), int32(len(src))) != nil {
 			panic("crypto/cipher: CipherUpdate failed")
 		}
 		runtime.KeepAlive(x)
@@ -245,7 +245,7 @@ func (x *cipherCBC) SetIV(iv []byte) {
 	if len(iv) != x.blockSize {
 		panic("cipher: incorrect length IV")
 	}
-	if ossl.EVP_CipherInit_ex(x.ctx, nil, nil, nil, unsafe.SliceData(iv), int32(cipherOpNone)) != nil {
+	if ossl.EVP_CipherInit_ex(x.ctx, nil, nil, nil, base(iv), int32(cipherOpNone)) != nil {
 		panic("cipher: unable to initialize EVP cipher ctx")
 	}
 }
diff --git a/rc4.go b/rc4.go
index e75bc553..18fe5038 100644
--- a/rc4.go
+++ b/rc4.go
@@ -4,7 +4,6 @@ package openssl
 
 import (
 	"runtime"
-	"unsafe"
 
 	"github.com/golang-fips/openssl/v2/internal/ossl"
 )
@@ -59,7 +58,7 @@ func (c *RC4Cipher) XORKeyStream(dst, src []byte) {
 	// which is what crypto/rc4 does.
 	_ = dst[len(src)-1]
 	var outLen int32
-	if err := ossl.EVP_EncryptUpdate(c.ctx, unsafe.SliceData(dst), &outLen, unsafe.SliceData(src), int32(len(src))); err != nil {
+	if err := ossl.EVP_EncryptUpdate(c.ctx, base(dst), &outLen, base(src), int32(len(src))); err != nil {
 		panic(err)
 	}
 	if int(outLen) != len(src) {