文档解释
ORA-28408: encryption using passphrase failed
Cause: Encryption with the passphrase failed which was likely due to an invalid or missing passphrase or due to an internal error.
Action: Verify that the passphrase is provided and try the operation again. If the problem persists contact Oracle Support Services.
Oracle错误ORA-28408：加密使用口令失败
本页提供关于此Oracle错误的更多信息：
错误代码：ORA-28408
错误信息：encryption using passphrase failed
官方解释
ORA-28408: encryption using passphrase failed
cause: Encryption using passphrase failed.
action: Ensure that the passphrase is correct.
常见案例
SQL> CREATE USER xmmegm IDENTIFIED BY secret ENCRYPTED USING ‘passweird’;
User created.
SQL> ALTER USER xmmegm IDENTI FIED BY newsecret;
alter user xmmegm identified by newsecret
*
ERROR at line 1:
ORA-28408: encryption using passphrase failed
一般处理方法及步骤
造成此ORA-28408错误的原因有三种：
（1）修改用户密码时使用的口令与原口令不一致；
（2）口令被改变但没有正确的encryption框架；
（3）口令未正确设置，导致加密失败。
（1）使用用户的正确口令；
（2）检查encryption框架是否正确配置；
（3）确保为用户设置了正确的口令。
