Re: using the bn library tips, faq or howto anywhere
Hmm, i think that depends on which BN_ functions. In your example, BN_bin2bn() returns a new BIGNUM object, so you do not need to BN_new(). b l wrote: Hi, If i reuse a BIGNUM created with BN_new() without freeing it first will i cause a memory leak? does the BIGNUM dynamically allocate memory each time it is used by certain functions? for example i create BIGNUM * tempBN=BN_new(); i might make a call to BN_bin2bn (char1,len,tempBN); i might make a similar call later BN_bin2bn(char2,len2,tempBN); is this reuse of a big number like this going to cause a memory leak?? Is tempBN reusing the same memory or is it allocating new memory. How is it working internally? Is there a faq/sample code/tips on how to use the BN library? At the moment i allocate a lot of BIGNUM's using BN_new() at the start of the program. I then reuse these BIGNUM's over and over and over throughout multiple runs of a long computation. I had thought that by creating them at the start of the program and then just reusing them that i wouldn't be repeatedly dynamically allocating memory and not freeing it. but now i'm not so sure. Musn't the BIGNUM be reallocating memory every time i use it otherwise how does it know what size to make itself initially? How should i do this type of thing properly? thanks for any help. b ___ Do you Yahoo!? Win 1 of 4,000 free domain names from Yahoo! Enter now. http://promotions.yahoo.com/goldrush __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED] __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
Re: using the bn library tips, faq or howto anywhere
thanks Nils,
brian
--- Nils Larsch <[EMAIL PROTECTED]> wrote:
> b l wrote:
> > Hi,
> >
> > If i reuse a BIGNUM created with BN_new() without
> > freeing it first will i cause a memory leak?
>
> no
>
> > does the BIGNUM dynamically allocate memory each
> time
> > it is used by certain functions?
>
> yes (but only if it's required)
>
> >
> > for example
> > i create BIGNUM * tempBN=BN_new();
> >
> > i might make a call to
> > BN_bin2bn (char1,len,tempBN);
> >
> > i might make a similar call later
> > BN_bin2bn(char2,len2,tempBN);
> >
> > is this reuse of a big number like this going to
> cause
> > a memory leak??
>
> no
>
> > Is tempBN reusing the same memory or is it
> allocating
> > new memory. How is it working internally?
>
> if the current memory is sufficient to fulfil the
> task
> it's reused, otherwise it's increased via realloc
> etc.
>
> >
> > Is there a faq/sample code/tips on how to use the
> BN
> > library?
>
> crypto/{rsa|dsa|...} ;-)
>
> >
> > At the moment i allocate a lot of BIGNUM's using
> > BN_new() at the start of the program. I then reuse
> > these BIGNUM's over and over and over throughout
> > multiple runs of a long computation.
>
> alternative use BN_CTX (see for example 'man
> BN_CTX_new')
>
> >
> > I had thought that by creating them at the start
> of
> > the program and then just reusing them that i
> wouldn't
> > be repeatedly dynamically allocating memory and
> not
> > freeing it.
>
> that's true
>
> > but now i'm not so sure. Musn't the BIGNUM be
> > reallocating memory every time i use it otherwise
> how
> > does it know what size to make itself initially?
> > How should i do this type of thing properly?
>
> Nils
>
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Re: Query on CRL distribution point
On Sun, Sep 05, 2004, pijush koley wrote: > Hi! > I want to setup a test CA using OpenSSL. So I configured openssl.cnf file according > to my environment. Then I executed following command > > CA.pl -newca > > This gave an error and it indicated that following line produced an error. > > crlDistributionPoints = URI:ldap://:/CRLObjID=CRLPoint,o=domain > > Than I changed this line to > > crlDistributionPoints = URI:http://:/TestCRL/ > > and this time whole setup worked fine. > Can anybody please tell me why crlDistributionPoints failed to take an URI started > with "ldap"? > Yes its the embedded comma. If you need a comma then use the alternative @section format mentioned in doc/openssl.txt Steve. -- Dr Stephen N. Henson. Email, S/MIME and PGP keys: see homepage OpenSSL project core developer and freelance consultant. Funding needed! Details on homepage. Homepage: http://www.drh-consultancy.demon.co.uk __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
Re: using the bn library tips, faq or howto anywhere
b l wrote:
Hi,
If i reuse a BIGNUM created with BN_new() without
freeing it first will i cause a memory leak?
no
does the BIGNUM dynamically allocate memory each time
it is used by certain functions?
yes (but only if it's required)
for example
i create BIGNUM * tempBN=BN_new();
i might make a call to
BN_bin2bn (char1,len,tempBN);
i might make a similar call later
BN_bin2bn(char2,len2,tempBN);
is this reuse of a big number like this going to cause
a memory leak??
no
Is tempBN reusing the same memory or is it allocating
new memory. How is it working internally?
if the current memory is sufficient to fulfil the task
it's reused, otherwise it's increased via realloc etc.
Is there a faq/sample code/tips on how to use the BN
library?
crypto/{rsa|dsa|...} ;-)
At the moment i allocate a lot of BIGNUM's using
BN_new() at the start of the program. I then reuse
these BIGNUM's over and over and over throughout
multiple runs of a long computation.
alternative use BN_CTX (see for example 'man BN_CTX_new')
I had thought that by creating them at the start of
the program and then just reusing them that i wouldn't
be repeatedly dynamically allocating memory and not
freeing it.
that's true
but now i'm not so sure. Musn't the BIGNUM be
reallocating memory every time i use it otherwise how
does it know what size to make itself initially?
How should i do this type of thing properly?
Nils
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using the bn library tips, faq or howto anywhere
Hi, If i reuse a BIGNUM created with BN_new() without freeing it first will i cause a memory leak? does the BIGNUM dynamically allocate memory each time it is used by certain functions? for example i create BIGNUM * tempBN=BN_new(); i might make a call to BN_bin2bn (char1,len,tempBN); i might make a similar call later BN_bin2bn(char2,len2,tempBN); is this reuse of a big number like this going to cause a memory leak?? Is tempBN reusing the same memory or is it allocating new memory. How is it working internally? Is there a faq/sample code/tips on how to use the BN library? At the moment i allocate a lot of BIGNUM's using BN_new() at the start of the program. I then reuse these BIGNUM's over and over and over throughout multiple runs of a long computation. I had thought that by creating them at the start of the program and then just reusing them that i wouldn't be repeatedly dynamically allocating memory and not freeing it. but now i'm not so sure. Musn't the BIGNUM be reallocating memory every time i use it otherwise how does it know what size to make itself initially? How should i do this type of thing properly? thanks for any help. b ___ Do you Yahoo!? Win 1 of 4,000 free domain names from Yahoo! Enter now. http://promotions.yahoo.com/goldrush __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
Query on CRL distribution point
Hi! I want to setup a test CA using OpenSSL. So I configured openssl.cnf file according to my environment. Then I executed following command CA.pl -newca This gave an error and it indicated that following line produced an error. crlDistributionPoints = URI:ldap://:/CRLObjID=CRLPoint,o=domain Than I changed this line to crlDistributionPoints = URI:http://:/TestCRL/ and this time whole setup worked fine. Can anybody please tell me why crlDistributionPoints failed to take an URI started with "ldap"? Thanks in advance. Regards -Pijush __Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
A problem with the installation (Unable to load private key)
umask 77 ; \ /usr/bin/openssl req -new -key /etc/httpd/conf/ssl.key/server.key -out /etc/httpd/conf/ssl.csr/server.csr unable to load Private Key 14854:error:0906D06C:PEM routines:PEM_read_bio:no start line:pem_lib.c:632:Expecting: ANY PRIVATE KEY make: *** [/etc/httpd/conf/ssl.csr/server.csr] Error 1 ^^ This happens when i'm giving the command: "make certreq" in the directory: /usr/share/ssl/certs using Redhat 9 Shrike as operating system, I have generated a key which is located at /etc/httpd/conf/ssl.key/server.key. Can any1 help me with this problem, I never worked with OpenSSL before. Thanks in advance, Nabi1 __ OpenSSL Project http://www.openssl.org User Support Mailing List[EMAIL PROTECTED] Automated List Manager [EMAIL PROTECTED]
