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diff --git a/base/runtime/org.argeo.util/src/main/java/org/argeo/util/crypto/PBEKeySpecCallback.java b/base/runtime/org.argeo.util/src/main/java/org/argeo/util/crypto/PBEKeySpecCallback.java
new file mode 100644
index 000000000..676b9706f
--- /dev/null
+++ b/base/runtime/org.argeo.util/src/main/java/org/argeo/util/crypto/PBEKeySpecCallback.java
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2007-2012 Mathieu Baudier
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *         http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.argeo.util.crypto;
+
+import javax.crypto.spec.PBEKeySpec;
+import javax.security.auth.callback.Callback;
+import javax.security.auth.callback.PasswordCallback;
+
+/**
+ * All information required to set up a {@link PBEKeySpec} bar the password
+ * itself (use a {@link PasswordCallback})
+ */
+public class PBEKeySpecCallback implements Callback {
+	private String secretKeyFactory;
+	private byte[] salt;
+	private Integer iterationCount;
+	/** Can be null for some algorithms */
+	private Integer keyLength;
+	/** Can be null, will trigger secret key encryption if not */
+	private String secretKeyEncryption;
+
+	private String encryptedPasswordHashCipher;
+	private byte[] encryptedPasswordHash;
+
+	public void set(String secretKeyFactory, byte[] salt,
+			Integer iterationCount, Integer keyLength,
+			String secretKeyEncryption) {
+		this.secretKeyFactory = secretKeyFactory;
+		this.salt = salt;
+		this.iterationCount = iterationCount;
+		this.keyLength = keyLength;
+		this.secretKeyEncryption = secretKeyEncryption;
+//		this.encryptedPasswordHashCipher = encryptedPasswordHashCipher;
+//		this.encryptedPasswordHash = encryptedPasswordHash;
+	}
+
+	public String getSecretKeyFactory() {
+		return secretKeyFactory;
+	}
+
+	public byte[] getSalt() {
+		return salt;
+	}
+
+	public Integer getIterationCount() {
+		return iterationCount;
+	}
+
+	public Integer getKeyLength() {
+		return keyLength;
+	}
+
+	public String getSecretKeyEncryption() {
+		return secretKeyEncryption;
+	}
+
+	public String getEncryptedPasswordHashCipher() {
+		return encryptedPasswordHashCipher;
+	}
+
+	public byte[] getEncryptedPasswordHash() {
+		return encryptedPasswordHash;
+	}
+
+}