MySql Password Encoder

Posted at 2013. 9. 21. 19:24 | Posted in Framework/Spring Security
개인적으로 자주 사용하는 Spring Security Password Encoder 입니다.

MySql 의 password() 펑션 알고리즘 사용합니다.

import java.security.GeneralSecurityException; import java.security.MessageDigest; import org.springframework.security.crypto.password.PasswordEncoder; public class MySqlPasswordEncoder implements PasswordEncoder { @Override public String encode(CharSequence rawPassword) { if (rawPassword == null) { throw new NullPointerException(); } byte[] bpara = new byte[rawPassword.length()]; byte[] rethash; int i; for (i = 0; i < rawPassword.length(); i++) bpara[i] = (byte) (rawPassword.charAt(i) & 0xff); try { MessageDigest sha1er = MessageDigest.getInstance("SHA1"); rethash = sha1er.digest(bpara); // stage1 rethash = sha1er.digest(rethash); // stage2 } catch (GeneralSecurityException e) { throw new RuntimeException(e); } StringBuffer r = new StringBuffer(41); r.append("*"); for (i = 0; i < rethash.length; i++) { String x = Integer.toHexString(rethash[i] & 0xff).toUpperCase(); if (x.length() < 2) r.append("0"); r.append(x); } return r.toString(); } @Override public boolean matches(CharSequence rawPassword, String encodedPassword) { if (encodedPassword == null || rawPassword == null) { return false; } if (!encodedPassword.equals(encode(rawPassword))) { return false; } return true; } }


적용 예시..

	<security:authentication-manager alias="authenticationManager">
		<security:authentication-provider user-service-ref="userService">
			<security:password-encoder ref="passwordEncoder" />
		</security:authentication-provider>
	</security:authentication-manager>

	<bean id="passwordEncoder" class="MySqlPasswordEncoder">


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