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8.3 Software Cryptographic API Performance
This section provides performance information for System i systems using the following cryptographic
services; i5/OS Cryptographic Services API and IBM JCE 1.2.1, an extension of JDK 1.4.2.
Cryptographic performance is an important aspect of capacity planning, particularly for applications using
secure network communications. The information in this section may be used to assist in capacity
planning for this complex environment.
Measurement Results
The cryptographic performance measurements in the following three tables were made using i5/OS
Cryptographic Services API and Java Cryptography Extension.
Notes:
y See section 8.2 for Test Environment Information
n/a35n/a165100204810RSA
n/a246n/a1,187100102410RSA
n/a30n/a12810020481RSA
n/a197n/a89710010241RSA
27,183,77341582,392,0381,2576553625610AES
27,824,57527,17228,005,44627,349102425610AES
34,350,709524110,892,8311,6926553612810AES
35,754,19034,91631,137,52330,408102412810AES
22,614,60734572,782,3971,111655362561AES
23,313,52622,76724,601,42824,02510242561AES
28,080,03842896,930,8531,479655361281AES
28,784,25928,11027,275,58526,63610241281AES
54,321,919207
266,579,8891,01726214412810RC4
32,704,635125248,224,2079472621441281RC4
7,657,5511177,139,8141096553611210Triple DES
7,697,9177,5176,783,6586,625102411210Triple DES
6,086,464935,710,92587655361121Triple DES
6,140,8935,9975,159,7565,03910241121Triple DES
20,241,95519,76815,771,65615,40210245610DES
15,909,51515,53711,547,05811,2761024561DES
JCE (Bytes/
Second)
JCE
(Transactions
/Second)
i5/OS (Bytes/
Second)
i5/OS
(Transactions/
Second)
Transaction
Length
(Bytes)
Key Length
(Bits)
Threads
Encryption
Algorithm
Cipher Encrypt Performance
Table 8.1
IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008 Chapter 8 Cryptography Performance 144