Class Md4PasswordEncoder
- java.lang.Object
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- org.springframework.security.crypto.password.Md4PasswordEncoder
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- All Implemented Interfaces:
PasswordEncoder
@Deprecated public class Md4PasswordEncoder extends java.lang.Object implements PasswordEncoder
Deprecated.Digest based password encoding is not considered secure. Instead use an adaptive one way function like BCryptPasswordEncoder, Pbkdf2PasswordEncoder, or SCryptPasswordEncoder. Even better useDelegatingPasswordEncoder
which supports password upgrades. There are no plans to remove this support. It is deprecated to indicate that this is a legacy implementation and using it is considered insecure.ThisPasswordEncoder
is provided for legacy purposes only and is not considered secure. Encodes passwords using MD4. The general format of the password is:s = salt == null ? "" : "{" + salt + "}" s + md4(password + s)
Such that "salt" is the salt, md4 is the digest method, and password is the actual password. For example with a password of "password", and a salt of "thisissalt":String s = salt == null ? "" : "{" + salt + "}"; s + md4(password + s) "{thisissalt}" + md4(password + "{thisissalt}") "{thisissalt}6cc7924dad12ade79dfb99e424f25260"
If the salt does not exist, then omit "{salt}" like this:md4(password)
If the salt is an empty String, then only use "{}" like this:"{}" + md4(password + "{}")
The format is intended to work with the Md4PasswordEncoder that was found in the Spring Security core module. However, the passwords will need to be migrated to include any salt with the password since this API provides Salt internally vs making it the responsibility of the user. To migrate passwords from the SaltSource use the following:String salt = saltSource.getSalt(user); String s = salt == null ? null : "{" + salt + "}"; String migratedPassword = s + user.getPassword();
- Since:
- 5.0
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Constructor Summary
Constructors Constructor Description Md4PasswordEncoder()
Deprecated.
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Method Summary
All Methods Instance Methods Concrete Methods Deprecated Methods Modifier and Type Method Description java.lang.String
encode(java.lang.CharSequence rawPassword)
Deprecated.Encodes the rawPass using a MessageDigest.boolean
matches(java.lang.CharSequence rawPassword, java.lang.String encodedPassword)
Deprecated.Takes a previously encoded password and compares it with a rawpassword after mixing in the salt and encoding that valuevoid
setEncodeHashAsBase64(boolean encodeHashAsBase64)
Deprecated.-
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface org.springframework.security.crypto.password.PasswordEncoder
upgradeEncoding
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Method Detail
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setEncodeHashAsBase64
public void setEncodeHashAsBase64(boolean encodeHashAsBase64)
Deprecated.
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encode
public java.lang.String encode(java.lang.CharSequence rawPassword)
Deprecated.Encodes the rawPass using a MessageDigest. If a salt is specified it will be merged with the password before encoding.- Specified by:
encode
in interfacePasswordEncoder
- Parameters:
rawPassword
- The plain text password- Returns:
- Hex string of password digest (or base64 encoded string if encodeHashAsBase64 is enabled.
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matches
public boolean matches(java.lang.CharSequence rawPassword, java.lang.String encodedPassword)
Deprecated.Takes a previously encoded password and compares it with a rawpassword after mixing in the salt and encoding that value- Specified by:
matches
in interfacePasswordEncoder
- Parameters:
rawPassword
- plain text passwordencodedPassword
- previously encoded password- Returns:
- true or false
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