diff --git a/encryption_aead/encryption_test.go b/encryption_aead/encryption_test.go
index 226a4b4..6e15a66 100644
--- a/encryption_aead/encryption_test.go
+++ b/encryption_aead/encryption_test.go
@@ -44,8 +44,8 @@ func BenchmarkEncryptAEAD(b *testing.B) {
 	aes256GcmKey := utils.RandBytes(b, 32)
 	aes256GcmNonce := utils.RandBytes(b, 12)
 
-	aes128GcmKey := utils.RandBytes(b, 16)
-	aes128GcmNonce := utils.RandBytes(b, 12)
+	// aes128GcmKey := utils.RandBytes(b, 16)
+	// aes128GcmNonce := utils.RandBytes(b, 12)
 
 	for _, size := range BENCHMARKS {
 		benchmarkEncrypt(b, size, "XChaCha20_BLAKE3", newXChaCha20Blake3Cipher(b, xChaCha20Key), xChaCha20Nonce, additionalData)
@@ -53,7 +53,7 @@ func BenchmarkEncryptAEAD(b *testing.B) {
 		benchmarkEncrypt(b, size, "XChaCha20_Poly1305", newXChaCha20Poly1305Cipher(b, xChaCha20Key), xChaCha20Nonce, additionalData)
 		benchmarkEncrypt(b, size, "ChaCha20_Poly1305", newChaCha20Poly1305Cipher(b, chaCha20Key), chaCha20Nonce, additionalData)
 		benchmarkEncrypt(b, size, "AES_256_GCM", newAesGcmCipher(b, aes256GcmKey), aes256GcmNonce, additionalData)
-		benchmarkEncrypt(b, size, "AES_128_GCM", newAesGcmCipher(b, aes128GcmKey), aes128GcmNonce, additionalData)
+		// benchmarkEncrypt(b, size, "AES_128_GCM", newAesGcmCipher(b, aes128GcmKey), aes128GcmNonce, additionalData)
 		benchmarkEncrypt(b, size, "XChaCha20_SHA256", newXChaCha20Sha256Cipher(b, xChaCha20Key), xChaCha20Nonce, additionalData)
 	}
 }
@@ -70,8 +70,8 @@ func BenchmarkDecryptAEAD(b *testing.B) {
 	aes256GcmKey := utils.RandBytes(b, 32)
 	aes256GcmNonce := utils.RandBytes(b, 12)
 
-	aes128GcmKey := utils.RandBytes(b, 16)
-	aes128GcmNonce := utils.RandBytes(b, 12)
+	// aes128GcmKey := utils.RandBytes(b, 16)
+	// aes128GcmNonce := utils.RandBytes(b, 12)
 
 	for _, size := range BENCHMARKS {
 		benchmarkDecrypt(b, size, "XChaCha20_BLAKE3", newXChaCha20Blake3Cipher(b, xChaCha20Key), xChaCha20Nonce, additionalData)
@@ -79,7 +79,7 @@ func BenchmarkDecryptAEAD(b *testing.B) {
 		benchmarkDecrypt(b, size, "XChaCha20_Poly1305", newXChaCha20Poly1305Cipher(b, xChaCha20Key), xChaCha20Nonce, additionalData)
 		benchmarkDecrypt(b, size, "ChaCha20_Poly1305", newChaCha20Poly1305Cipher(b, chaCha20Key), chaCha20Nonce, additionalData)
 		benchmarkDecrypt(b, size, "AES_256_GCM", newAesGcmCipher(b, aes256GcmKey), aes256GcmNonce, additionalData)
-		benchmarkDecrypt(b, size, "AES_128_GCM", newAesGcmCipher(b, aes128GcmKey), aes128GcmNonce, additionalData)
+		// benchmarkDecrypt(b, size, "AES_128_GCM", newAesGcmCipher(b, aes128GcmKey), aes128GcmNonce, additionalData)
 		benchmarkDecrypt(b, size, "XChaCha20_SHA256", newXChaCha20Sha256Cipher(b, xChaCha20Key), xChaCha20Nonce, additionalData)
 	}
 }
diff --git a/encryption_unauthenticated/encryption_test.go b/encryption_unauthenticated/encryption_test.go
index f7031ab..9d34a75 100644
--- a/encryption_unauthenticated/encryption_test.go
+++ b/encryption_unauthenticated/encryption_test.go
@@ -133,7 +133,7 @@ type xChaCha12Cipher struct {
 }
 
 func newXChaCha12Cipher(b *testing.B, key, nonce []byte) xChaCha12Cipher {
-	cipher, err := xchacha12.NewCipher(key, nonce)
+	cipher, err := xchacha12.New(key, nonce)
 	if err != nil {
 		b.Error(err)
 	}
diff --git a/go.mod b/go.mod
index af2c72c..2d9aceb 100644
--- a/go.mod
+++ b/go.mod
@@ -5,7 +5,7 @@ go 1.21
 require (
 	github.com/DataDog/zstd v1.5.5
 	github.com/akamensky/base58 v0.0.0-20210829145138-ce8bf8802e8f
-	github.com/bloom42/stdx v0.0.0-20240120085940-f464ec6e679c
+	github.com/bloom42/stdx v0.0.0-20240121092629-09ed451d9a75
 	github.com/cespare/xxhash/v2 v2.2.0
 	github.com/golang/snappy v0.0.4
 	github.com/jotfs/fastcdc-go v0.2.0
diff --git a/go.sum b/go.sum
index d177904..36a95c6 100644
--- a/go.sum
+++ b/go.sum
@@ -2,8 +2,8 @@ github.com/DataDog/zstd v1.5.5 h1:oWf5W7GtOLgp6bciQYDmhHHjdhYkALu6S/5Ni9ZgSvQ=
 github.com/DataDog/zstd v1.5.5/go.mod h1:g4AWEaM3yOg3HYfnJ3YIawPnVdXJh9QME85blwSAmyw=
 github.com/akamensky/base58 v0.0.0-20210829145138-ce8bf8802e8f h1:z8MkSJCUyTmW5YQlxsMLBlwA7GmjxC7L4ooicxqnhz8=
 github.com/akamensky/base58 v0.0.0-20210829145138-ce8bf8802e8f/go.mod h1:UdUwYgAXBiL+kLfcqxoQJYkHA/vl937/PbFhZM34aZs=
-github.com/bloom42/stdx v0.0.0-20240120085940-f464ec6e679c h1:mpkg67NdWIwxLhMx7TNteYZy/wcg0frvZse1wuVap8w=
-github.com/bloom42/stdx v0.0.0-20240120085940-f464ec6e679c/go.mod h1:zZWdLGQq1BX7GoDuZZPyyE0WUTy5MmNtPB6+8TB6Mf0=
+github.com/bloom42/stdx v0.0.0-20240121092629-09ed451d9a75 h1:06wdAsXTKv/vD2RiTsylrnmZnYNv0bTW49PLEN/Ywtw=
+github.com/bloom42/stdx v0.0.0-20240121092629-09ed451d9a75/go.mod h1:zZWdLGQq1BX7GoDuZZPyyE0WUTy5MmNtPB6+8TB6Mf0=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
diff --git a/hashing/hashing_test.go b/hashing/hashing_test.go
index 2df3f82..fa09e66 100644
--- a/hashing/hashing_test.go
+++ b/hashing/hashing_test.go
@@ -33,8 +33,8 @@ func BenchmarkHashing(b *testing.B) {
 
 	for _, size := range benchmarks {
 		benchmarkHasher(size, "sha256", sha256Hasher{}, b)
-		benchmarkHasher(size, "zeebo_blake3_256", zeeboBlake3Hasher{}, b)
-		benchmarkHasher(size, "lukechampine_blake3_256", lukechampineBlake3Hasher{}, b)
+		benchmarkHasher(size, "zeebo_blake3", zeeboBlake3Hasher{}, b)
+		benchmarkHasher(size, "lukechampine_blake3", lukechampineBlake3Hasher{}, b)
 		benchmarkHasher(size, "blake2b_256", blake2bHasher{}, b)
 		benchmarkHasher(size, "blake2s_256", blake2sHasher{}, b)
 		// benchmarkHasher("sha512/256", sha512_256Hasher{}, b)
@@ -42,8 +42,8 @@ func BenchmarkHashing(b *testing.B) {
 		benchmarkHasher(size, "sha1", sha1Hasher{}, b)
 
 		benchmarkHasher(size, "sha2_512", sha512Hasher{}, b)
-		benchmarkHasher(size, "zeebo_blake3_512", zeeboBlake3_512Hasher{}, b)
-		benchmarkHasher(size, "lukechampine_blake3_512", lukechampineBlake3_512Hasher{}, b)
+		// benchmarkHasher(size, "zeebo_blake3_512", zeeboBlake3_512Hasher{}, b)
+		// benchmarkHasher(size, "lukechampine_blake3_512", lukechampineBlake3_512Hasher{}, b)
 		benchmarkHasher(size, "blake2b_512", blake2b512Hasher{}, b)
 		benchmarkHasher(size, "sha3_512", sha3_512Hasher{}, b)
 	}
@@ -67,11 +67,11 @@ func (lukechampineBlake3Hasher) Hash(input []byte) {
 	lukechampineblake3.Sum256(input)
 }
 
-type lukechampineBlake3_512Hasher struct{}
+// type lukechampineBlake3_512Hasher struct{}
 
-func (lukechampineBlake3_512Hasher) Hash(input []byte) {
-	lukechampineblake3.Sum512(input)
-}
+// func (lukechampineBlake3_512Hasher) Hash(input []byte) {
+// 	lukechampineblake3.Sum512(input)
+// }
 
 type zeeboBlake3Hasher struct{}
 
@@ -79,11 +79,11 @@ func (zeeboBlake3Hasher) Hash(input []byte) {
 	zeeboblake3.Sum256(input)
 }
 
-type zeeboBlake3_512Hasher struct{}
+// type zeeboBlake3_512Hasher struct{}
 
-func (zeeboBlake3_512Hasher) Hash(input []byte) {
-	zeeboblake3.Sum512(input)
-}
+// func (zeeboBlake3_512Hasher) Hash(input []byte) {
+// 	zeeboblake3.Sum512(input)
+// }
 
 type blake2sHasher struct{}
 
diff --git a/kdf/kdf_test.go b/kdf/kdf_test.go
index dbfdb14..58d4830 100644
--- a/kdf/kdf_test.go
+++ b/kdf/kdf_test.go
@@ -75,7 +75,7 @@ func (lukechampineBlake3_512KDF) DeriveKey(secret, info, out []byte) {
 type zeeboBlake3KDF struct{}
 
 func (zeeboBlake3KDF) DeriveKey(secret, info, out []byte) {
-	zeeboblake3.DeriveKey(string(info), secret, out)
+	zeeboblake3.DeriveKey(string(info), secret, out[:0])
 }
 
 type zeeboBlake3_512KDF struct{}