Hi,


For one of our customer I'm trying to test RSA public key encryption for file 
transfer.

The common setup is windos7 & 8 as 64bit system & OpenSSL 0.9.8k (but 0.9.8y & 
1.0.1e shows the same problem).



Now I see a problem by decrypting large files with OpenSSL.



Mainly we use openssl smime for encryption and decryption since it works fine 
for our purpose.



- openssl.exe smime -encrypt -outform DER -des3 -binary -in LargeFile.dat -out 
LargeFile.dat.en Receip.cer

- openssl.exe smime -decrypt -inform DER -in LargeFile.dat.en -binary -inkey 
PrivateKey.der -passin file:digest.key



While encryption works, decryption seems to have problems with encrypted files 
larger 1.48 GB. Right after the start I got the following messages:



Error reading S/MIME message

11992:error:07069041:memory buffer routines:BUF_MEM_grow_clean:malloc 
failure:.\crypto\buffer\buffer.c:169:

11992:error:0D06B041:asn1 encoding routines:ASN1_D2I_READ_BIO:malloc 
failure:.\crypto\asn1\a_d2i_fp.c:242:

The used key has 4096 bits.

I've seen on the News page in section "Major changes between OpenSSL 0.9.7g and 
OpenSSL 0.9.8" that files large 2GB might be supported now.
Could you help me to solve the problem? Possibly smime is not the correct 
module.

Thanks in advance.

Best regards,
Marco



Marco Köllner
Application Developer
fon +49 (0) 7062.9565-17

TMN Systemberatung GmbH
Unsere Blogs<http://blogs.tmn-net.com/> | Unsere 
Website<http://www.tmn-systemberatung.de/>



[cid:[email protected]]



TMN Systemberatung GmbH | Schwabstr. 7 | 74360 Ilsfeld | Germany | fon +49 (0) 
7062.9565-0 | fax +49 (0) 7062.9565-19
Eingetragen am Amtsgericht Stuttgart, HRB 106526 | Geschäftsführer: Armin 
Neudert, Wolf-Michael Niethammer

Diese E-Mail enthält vertrauliche und/oder rechtlich geschützte Informationen. 
Wenn Sie nicht der richtige Adressat sind oder diese E-Mail irrtümlich erhalten 
haben, informieren Sie bitte sofort den Absender und vernichten Sie diese 
E-Mail. Das unerlaubte Kopieren und die unbefugte Weitergabe dieser E-Mail sind 
nicht gestattet. This e-mail may contain confidential and/or privileged 
information. If you are not the intended recipient or have received this e-mail 
in error please notify the sender immediately and delete this e-mail. Any 
unauthorized copying, disclosure or distribution of the material in this e-mail 
is strictly forbidden.

<<inline: image001.png>>

<<inline: image002.png>>

Reply via email to