Db::set_encrypt(const char *passwd, u_int32_t flags);
Set the password used by the DbEnv and Db methods to
perform encryption and decryption.
The flags value must be set to 0 or
the following value:
- Use the Rijndael/AES (also known as the Advanced Encryption Standard
and Federal Information Processing Standard (FIPS) 197) algorithm for
encryption or decryption.
Because databases opened within Berkeley DB environments use the password
specified to the environment, it is an error to attempt to set a
password in a database created within an environment.
The Db::set_encrypt interface may not be called after the Db::open
interface is called.
The Db::set_encrypt method either returns a non-zero error value or throws an exception that
encapsulates a non-zero error value on failure, and returns 0 on success.
The Db::set_encrypt method may fail and throw an exception or return a non-zero error for the following conditions:
- An invalid flag value or parameter was specified.
- Cryptography is not available in this Berkeley DB release.
The Db::set_encrypt method may fail and throw an exception or return a non-zero error for errors specified for other Berkeley DB and C library or system methods.
If a catastrophic error has occurred, the Db::set_encrypt method may fail and
either return DB_RUNRECOVERY or throw a
in which case all subsequent Berkeley DB calls will fail in the same way.
Databases and Related Methods
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