7.116. libica

Enhancement

BZ#738835

The libica library has been modified to allow usage of new algorithms that support the Message Security Assist Extension 4 instructions in the Central Processor Assist for Cryptographic Function (CPACF) feature. For the DES and 3DES block ciphers, the new feature supports the following modes of operation:

• Cipher Block Chaining with Ciphertext Stealing (CBC-CS)
• Cipher-based Message Authentication Code (CMAC)

For the AES block cipher, this feature supports the following modes of operation:

• Cipher Block Chaining with Ciphertext Stealing (CBC-CS)
• Counter with Cipher Block Chaining Message Authentication Code (CCM)
• Galois/Counter (GCM)

With this acceleration of complex cryptographic algorithms, performance of IBM System z machines significantly improves.