Java ApacheShiro的身份验证问题

我是ApacheShiro的初学者。我一直在关注文档和许多其他教程、博客等，但我就是无法让认证工作。当我尝试使用有效的用户名和密码登录时，总会抛出一个

InvalidCredentialsException

。我使用DynamoDB作为存储用户凭据的自定义域，但我真的认为这并不重要。显然，我存储和/或进行凭证匹配的方式不正确。以下是我的设置：

Shiro.ini:

[main]
myRealm = com.enki.closing.users.DynamoDBRealm

credentialsMatcher = org.apache.shiro.authc.credential.Sha256CredentialsMatcher
credentialsMatcher.storedCredentialsHexEncoded = false
credentialsMatcher.hashIterations = 1024

myRealm.credentialsMatcher = $credentialsMatcher

String password = ...
ByteSource passwordSalt = new SecureRandomNumberGenerator().nextBytes();
String hashedPasswordBase64 = new Sha256Hash(password, passwordSalt, 1024).toBase64();

// store the hashedPassword and salt in DynamoDB...
// I've tried storing the salt with and without base64 encoding.

创建用户帐户：

[main]
myRealm = com.enki.closing.users.DynamoDBRealm

credentialsMatcher = org.apache.shiro.authc.credential.Sha256CredentialsMatcher
credentialsMatcher.storedCredentialsHexEncoded = false
credentialsMatcher.hashIterations = 1024

myRealm.credentialsMatcher = $credentialsMatcher

String password = ...
ByteSource passwordSalt = new SecureRandomNumberGenerator().nextBytes();
String hashedPasswordBase64 = new Sha256Hash(password, passwordSalt, 1024).toBase64();

// store the hashedPassword and salt in DynamoDB...
// I've tried storing the salt with and without base64 encoding.

密码和salt在DynamoDB中存储得很好，值看起来很正常。以下是用于身份验证的自定义域：

protected AuthenticationInfo doGetAuthenticationInfo(AuthenticationToken token) throws AuthenticationException {
    UsernamePasswordToken userPass = (UsernamePasswordToken) token;
    String username = userPass.getUsername();
    ...
    // pull the matching password and salt out of DynamoDB, no problems...
    ByteSource passwordSalt = ByteSource.Util.bytes( storedPasswordSalt );
    return new SimpleAuthenticationInfo(username, passwordHash, passwordSalt, getName());
}

---

这几乎就是医生告诉我要做的，但有些事情不对。当我尝试登录时，它会出现

InvalidCredentialsException

我知道了如何让它工作。我必须改变这一点（在我的自定义域impl中）：

为此：

ByteSource passwordSalt = ByteSource.Util.bytes( 
                                  Base64.decode( storedPasswordSalt) );