Kbase P184123: Encrypted ai files do not compress as well as non-encryted ai files.
| Autor |
Progress Software Corporation - Progress |
| Acesso |
Público |
| Publicação |
15/03/2011 |
|
Status: Unverified
SYMPTOM(s):
Encrypted ai files do not compress as well as non-encryted ai files.
A 136,386 KB non-ecrypted ai file compresses to 24,641 KB
A 136,386 KB ecrypted ai file compresses to 118,332 KB
Compressed encrypted ai files too large to transfer over network
FACT(s) (Environment):
All Supported Operating Systems
OpenEdge 10.2x
CAUSE:
Expected behavior. Data encryption removes many repeating patterns to make the characters appear random. Compression utilities utilize repeating patterns to optimize their algorithms.
FIX:
Expected behavior.
In some deploments, the size of compressed encrypted AI files is too large for easy transfer across a network. AI files are encrypted by default when the database is enabled for encryption. It is possible to exclude the ai files from being encrypted by running:proutil dbname -C enableencryption -aiencryption disable