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diff --git a/security/runtime/org.argeo.security.core/src/main/java/org/argeo/security/core/MatchingAuthenticationProvider.java b/security/runtime/org.argeo.security.core/src/main/java/org/argeo/security/core/MatchingAuthenticationProvider.java
new file mode 100644
index 000000000..d53bf7871
--- /dev/null
+++ b/security/runtime/org.argeo.security.core/src/main/java/org/argeo/security/core/MatchingAuthenticationProvider.java
@@ -0,0 +1,78 @@
+package org.argeo.security.core;
+
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Properties;
+
+import org.apache.commons.io.IOUtils;
+import org.springframework.core.io.Resource;
+import org.springframework.security.AuthenticationException;
+import org.springframework.security.BadCredentialsException;
+import org.springframework.security.GrantedAuthority;
+import org.springframework.security.GrantedAuthorityImpl;
+import org.springframework.security.providers.UsernamePasswordAuthenticationToken;
+import org.springframework.security.providers.dao.AbstractUserDetailsAuthenticationProvider;
+import org.springframework.security.userdetails.User;
+import org.springframework.security.userdetails.UserDetails;
+
+public class MatchingAuthenticationProvider extends
+		AbstractUserDetailsAuthenticationProvider {
+
+	private Resource mapping;
+	private Properties properties;
+
+	private List<String> defaultRoles = new ArrayList<String>();
+
+	@Override
+	protected void doAfterPropertiesSet() throws Exception {
+		properties = new Properties();
+		InputStream propIn = mapping.getInputStream();
+		try {
+			properties.load(propIn);
+		} finally {
+			IOUtils.closeQuietly(propIn);
+		}
+	}
+
+	@Override
+	protected void additionalAuthenticationChecks(UserDetails userDetails,
+			UsernamePasswordAuthenticationToken authentication)
+			throws AuthenticationException {
+		if (!userDetails.getPassword().equals(authentication.getCredentials()))
+			throw new BadCredentialsException(
+					"Invalid credentails provided by "
+							+ authentication.getName());
+	}
+
+	@Override
+	protected UserDetails retrieveUser(String username,
+			UsernamePasswordAuthenticationToken authentication)
+			throws AuthenticationException {
+		String value = properties.getProperty(username);
+		if (value == null)
+			throw new BadCredentialsException("User " + username
+					+ " is not registered");
+		List<GrantedAuthority> grantedAuthorities = new ArrayList<GrantedAuthority>();
+		for (String role : defaultRoles)
+			grantedAuthorities.add(new GrantedAuthorityImpl(role));
+		return new User(
+				username,
+				value,
+				true,
+				true,
+				true,
+				true,
+				grantedAuthorities
+						.toArray(new GrantedAuthority[grantedAuthorities.size()]));
+	}
+
+	public void setMapping(Resource mapping) {
+		this.mapping = mapping;
+	}
+
+	public void setDefaultRoles(List<String> defaultRoles) {
+		this.defaultRoles = defaultRoles;
+	}
+
+}