Running OpenSSL 0.9.7g 11 Apr 2005 on a HP server using HPUX 11.00 compiled with gcc, I'm seeing a problem with decrypting smime messages that have been encrypted with aes128. The problem is that at around the 4111 byte mark the message has a whole pile of nulls inserted and the rest of the message only appears in fragments.
We are successfully sending aes encrypted messages to another site which is using a different package to decrypt the messages. But if you encrypt a file as follows of 5192 bytes or more:
openssl smime -encrypt -in foo2 -from [EMAIL PROTECTED] -to [EMAIL PROTECTED] -subject "Encryp" -encrypt -aes128 cert.pem > foo3
then decrypt it
openssl smime -decrypt -in foo3 -recip cert.pem -inkey key.pem > foo4
The corruption occurs. This doesn't happen with des3 or rc2-128.
We'd really like to use aes for encryption, any suggestions how to fix this? Anyone else seen this problem?
-- Alex Heatley Unix System Administrator Systems Management Group Ministry of Social Development Wellington, New Zealand
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