System Administration Guide: IP Services

Encryption Algorithms

Encryption algorithms encrypt data with a key. The algorithms operate on data in units of a block size. The encryption algorithm man pages describe the size of both the block size and the key size. By default, the DES-CBC and 3DES-CBC algorithms are installed. You must install the Solaris Encryption Kit to make the AES and Blowfish algorithms available to IPsec. The kit is available on a separate CD that is not part of the Solaris 9 installation box. The Encryption Kit Installation Guide describes how to install the Solaris Encryption Kit.

The following table lists the encryption algorithms that are supported in the Solaris operating environment. The table also lists the format of the algorithms when they are used as security options to the IPsec utilities, their man page names, and the package that contains them.

Table 19–2 Supported Encryption Algorithms

Algorithm Name 

Security Option Format 

Man Page 



des, des-cbc 


SUNWcsr, SUNWcarx.u 

3DES–CBC or Triple-DES

3des, 3des-cbc 


SUNWcsr, SUNWcarx.u 


blowfish, blowfish-cbc 


SUNWcryr, SUNWcryrx 


aes, aes-cbc 


SUNWcryr, SUNWcryrx