Data Encryption and Integrity Parameters
A-6
Oracle Database Advanced Security Administrator's Guide
SQLNET.ENCRYPTION_TYPES_SERVER
This parameter specifies a list of encryption algorithms used by this server, in the
order of intended use. This list is used to negotiate a mutually acceptable algorithm
with the client end of the connection. Each algorithm is checked against the list of
available client algorithm types until a match is found. If an algorithm that is not
installed is specified on this side, the connection terminates with error message
ORA-12650.
Table A–6
SQLNET.ENCRYPTION_TYPES_SERVER Parameter Attributes
Attribute
Description
Syntax
SQLNET.ENCRYPTION_TYPES_SERVER = (valid_
encryption_algorithm [,valid_encryption_
algorithm])
Valid Values
■
RC4_256: RSA RC4 (256-bit key size).
■
AES256: AES (256-bit key size).
■
AES192: AES (192-bit key size).
■
3DES168: 3-key Triple-DES (168-bit effective key size).
■
RC4_128: RSA RC4 (128-bit key size).
■
AES128: AES (128-bit key size).
■
3DES112: 2-key Triple-DES (112-bit effective key size).
■
RC4_56: RSA RC4 (56-bit key size).
■
DES: Standard DES (56-bit key size).
■
RC4_40: RSA RC4 (40-bit key size).
■
DES40: DES40 (40-bit key size).
Default Setting
If no algorithms are defined in the local
sqlnet.ora
file, all
installed algorithms are used in a negotiation in the preceding
sequence.
Usage Notes
You can specify multiple encryption algorithms—either a
single value or a list of algorithm names. For example, either of
the following encryption parameters is acceptable:
SQLNET.ENCRYPTION_TYPES_SERVER=(RC4_40)
SQLNET.ENCRYPTION_TYPES_SERVER=(DES,RC4_
56,RC4_128,DES40)
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