diff --git a/lib/encryption/ssss.dart b/lib/encryption/ssss.dart
index 2c2c0d95..ec9897c6 100644
--- a/lib/encryption/ssss.dart
+++ b/lib/encryption/ssss.dart
@@ -27,7 +27,7 @@ import 'package:encrypt/encrypt.dart';
 
 import '../famedlysdk.dart';
 import '../src/database/database.dart';
-import '../src/utils/crypto/crypto.dart';
+import '../src/utils/crypto/crypto.dart' as uc;
 import '../src/utils/run_in_background.dart';
 import '../src/utils/run_in_root.dart';
 import 'encryption.dart';
@@ -155,7 +155,7 @@ class SSSS {
     if (info.algorithm != AlgorithmTypes.pbkdf2) {
       throw Exception('Unknown algorithm');
     }
-    return await pbkdf2(utf8.encode(passphrase), utf8.encode(info.salt), info.iterations, info.bits ?? 256);
+    return await uc.pbkdf2(utf8.encode(passphrase), utf8.encode(info.salt), uc.sha512, info.iterations, info.bits ?? 256);
   }
 
   void setValidator(String type, FutureOr<bool> Function(String) validator) {
diff --git a/lib/src/utils/crypto/ffi.dart b/lib/src/utils/crypto/ffi.dart
index 49508df8..3e58f691 100644
--- a/lib/src/utils/crypto/ffi.dart
+++ b/lib/src/utils/crypto/ffi.dart
@@ -14,6 +14,16 @@ final PKCS5_PBKDF2_HMAC = libcrypto.lookupFunction<
   int Function(Pointer<Uint8> pass, int passlen, Pointer<Uint8> salt, int saltlen, int iter, Pointer<NativeType> digest, int keylen, Pointer<Uint8> out)
 >('PKCS5_PBKDF2_HMAC');
 
+final EVP_sha1 = libcrypto.lookupFunction<
+  Pointer<NativeType> Function(),
+  Pointer<NativeType> Function()
+>('EVP_sha1');
+
+final EVP_sha256 = libcrypto.lookupFunction<
+  Pointer<NativeType> Function(),
+  Pointer<NativeType> Function()
+>('EVP_sha256');
+
 final EVP_sha512 = libcrypto.lookupFunction<
   Pointer<NativeType> Function(),
   Pointer<NativeType> Function()
diff --git a/lib/src/utils/crypto/js.dart b/lib/src/utils/crypto/js.dart
index 631ccc7e..5db00f68 100644
--- a/lib/src/utils/crypto/js.dart
+++ b/lib/src/utils/crypto/js.dart
@@ -5,8 +5,29 @@ import 'dart:typed_data';
 
 import 'subtle.dart';
 
-Future<Uint8List> pbkdf2(Uint8List passphrase, Uint8List salt, int iterations, int bits) async {
+abstract class Hash {
+  Hash._(this.name);
+  String name;
+}
+
+final Hash sha1 = _Sha1();
+final Hash sha256 = _Sha256();
+final Hash sha512 = _Sha512();
+
+class _Sha1 extends Hash {
+  _Sha1() : super._('SHA-1');
+}
+
+class _Sha256 extends Hash {
+  _Sha256() : super._('SHA-256');
+}
+
+class _Sha512 extends Hash {
+  _Sha512() : super._('SHA-512');
+}
+
+Future<Uint8List> pbkdf2(Uint8List passphrase, Uint8List salt, Hash hash, int iterations, int bits) async {
   final raw = await importKey('raw', passphrase, 'PBKDF2', false, ['deriveBits']);
-  final res = await deriveBits(Pbkdf2Params(name: 'PBKDF2', hash: 'SHA-512', salt: salt, iterations: iterations), raw, bits);
+  final res = await deriveBits(Pbkdf2Params(name: 'PBKDF2', hash: hash.name, salt: salt, iterations: iterations), raw, bits);
   return Uint8List.view(res);
 }
diff --git a/lib/src/utils/crypto/native.dart b/lib/src/utils/crypto/native.dart
index 82940b24..c63f8026 100644
--- a/lib/src/utils/crypto/native.dart
+++ b/lib/src/utils/crypto/native.dart
@@ -4,7 +4,28 @@ import 'package:ffi/ffi.dart';
 
 import 'ffi.dart';
 
-Uint8List pbkdf2(Uint8List passphrase, Uint8List salt, int iterations, int bits) {
+abstract class Hash {
+  Hash._(this.ptr);
+  Pointer<NativeType> ptr;
+}
+
+final Hash sha1 = _Sha1();
+final Hash sha256 = _Sha256();
+final Hash sha512 = _Sha512();
+
+class _Sha1 extends Hash {
+  _Sha1() : super._(EVP_sha1());
+}
+
+class _Sha256 extends Hash {
+  _Sha256() : super._(EVP_sha256());
+}
+
+class _Sha512 extends Hash {
+  _Sha512() : super._(EVP_sha512());
+}
+
+Uint8List pbkdf2(Uint8List passphrase, Uint8List salt, Hash hash, int iterations, int bits) {
   final outLen = bits ~/ 8;
   final mem = malloc.call<Uint8>(passphrase.length + salt.length + outLen);
   final saltMem = mem.elementAt(passphrase.length);
@@ -12,7 +33,7 @@ Uint8List pbkdf2(Uint8List passphrase, Uint8List salt, int iterations, int bits)
   try {
     mem.asTypedList(passphrase.length).setAll(0, passphrase);
     saltMem.asTypedList(salt.length).setAll(0, salt);
-    PKCS5_PBKDF2_HMAC(mem, passphrase.length, saltMem, salt.length, iterations, EVP_sha512(), outLen, outMem);
+    PKCS5_PBKDF2_HMAC(mem, passphrase.length, saltMem, salt.length, iterations, hash.ptr, outLen, outMem);
     return Uint8List.fromList(outMem.asTypedList(outLen));
   } finally {
     malloc.free(mem);