Hi,
We encrypt data using openSSL C++ API, decrypt data using java(default
security package).
99.9% of the time, it works fine, but when multi-instances of apps encrypt
data at same time, java fails to decrypt .
We are using version 1.1.01 (AES/CBC/PKCS5Padding)
mpCtx = EVP_CIPHER_CTX_new();
EV
Hi,
Tried the example on:
https://wiki.openssl.org/index.php/EVP_Symmetric_Encryption_and_Decryption
On the Linux platform, when I set plaintext to "jason", it works fine.
When I set it to "Jason", it returns an empty string.
It works fine on windows platform for both cases.
Thanks for your h
Thanks Rich,
On Wed, Nov 13, 2019 at 12:34 PM Salz, Rich wrote:
> *>*For using 1.1.0, we only need to call RAND_bytes() ?
>
>
>
> Yes. But do check the return value of RAND_bytes.
>
Thanks Rich and Tomas,
Here is the code for creating the key (openssl-0.9.8h)
int AESCipher::createKey(unsigned char *buf, int keySize) {
char seed[256];
::sprintf(seed, "%ldXXX_XXX_H__x__xxx_x_xxx__INCLUDED_",
MiscUtils::generateId());
RAND_seed(seed, ::strlen(seed));
RAND_bytes
, ::strlen(seed));
RAND_bytes(buf, keySize / 8);
What other method do you suggest to use ?
Thanks
Jason
On Tue, Nov 12, 2019 at 10:50 AM Jason Qian wrote:
> Thanks Tomas,
>
> I will try that.
>
> On Tue, Nov 12, 2019 at 3:14 AM Tomas Mraz wrote:
>
>> On Mon, 2
Thanks Tomas,
I will try that.
On Tue, Nov 12, 2019 at 3:14 AM Tomas Mraz wrote:
> On Mon, 2019-11-04 at 17:34 -0500, Jason Qian via openssl-users wrote:
> > Hi
> >
> >We have an application that does the Diffie Hellman key exchange
> > (OpenSSL/1.1.0f).
>
Hi
We have an application that does the Diffie Hellman key exchange
(OpenSSL/1.1.0f).
It works fine, but under heavy loaded conditions, sometimes an invalide
secret been generated and other side couldn't decrypt the data (the secret
seems offset by one).
The client side is c++ and the se
Hi Salz,
I have built the 1.1.0f with vc10 ( have to move some header files)
Is the OpenSSL 1.1.0f supported version ?
Thanks
Jason
On Thu, Oct 5, 2017 at 3:31 PM, Salz, Rich wrote:
>
>- Compared code of RAND_poll(void) between 1.0.1 and 1.0.2 and it
>seems no change
>
>
ason
On Thu, Oct 5, 2017 at 3:37 PM, Jeffrey Walton wrote:
> On Thu, Oct 5, 2017 at 3:27 PM, Jason Qian via openssl-users
> wrote:
> > Compared code of RAND_poll(void) between 1.0.1 and 1.0.2 and it seems no
> > change
>
> I believe it was fixed earlier than that. Also see
Thanks,
On Fri, Oct 6, 2017 at 9:36 AM, Salz, Rich wrote:
> Okay, you seem to be looking for an answer and there isn’t one.
>
>
>
> The release you are using has problems when it decided to walk the heap.
> The release you are using WILL NOT BE FIXED.
>
>
>
> Change your code, backport the fix,
Thanks Jeff,
The challenge is that, we are not directly calling RAND_poll(). We just
call *DH_generate_key* for DH key.
>From the following call stacks, you can see the RAND_poll() is triggered by
ssleay_rand_bytes.
libeay32d.dll!*RAND_poll*() Line 572 C
libeay32d.dll!ssleay_rand_bytes(unsi
More :
The call stacks are from 1.0.1c when calling DH_generate_key.
Is any fix in the latest version for this ?
Thanks
Jason
On Thu, Oct 5, 2017 at 3:53 PM, Jason Qian wrote:
> We call DH_generate_key(DH *dh) and the RAND_poll() is called
> ssleay_rand_bytes
>
>
>
rey Walton wrote:
> On Thu, Oct 5, 2017 at 2:55 PM, Jason Qian via openssl-users
> wrote:
> > Thanks Michael,
> >
> > I saw a lot of discussion for this issue on,
> >
> >https://mta.openssl.org/pipermail/openssl-dev/2015-
> July/002210.ht
Compared code of RAND_poll(void) between 1.0.1 and 1.0.2 and it seems no
change
Thanks
On Thu, Oct 5, 2017 at 2:59 PM, Salz, Rich wrote:
> You could try to backport the win_rand file from a more recent release.
>
>
>
> Far better, as Michael first said, to move to 1.0.2 or later.
>
>
>
>
>
--
t get the entropy it needs.
>
>
>
> This is an operating-system issue, and needs to be referred to your OS
> administrator.
>
>
>
> Michael Wojcik
> Distinguished Engineer, Micro Focus
>
>
>
>
>
>
>
> *From:* Jason Qian [mailto:jq...@tibco.com]
&
Wed, Sep 27, 2017 at 2:02 PM, Michael Wojcik <
michael.woj...@microfocus.com> wrote:
> > From: openssl-users [mailto:openssl-users-boun...@openssl.org] On
> Behalf Of Jason Qian via openssl-users
> > Sent: Wednesday, September 27, 2017 07:00
> > To: openssl-users@openss
Hi,
Need some help, one of our application that hangs when calling
DH_generate_key (openssl-0.9.8y). This occurs randomly under loaded
condition.
Not sure, if anyone know this issue ?
Thanks
Jason
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Thanks for look into this,
void * pKey = LockResource(hHandle);
The code works most of the time, only occasionally generates exception and
Not sure why on DSA_free(pDSA);
On Fri, Aug 11, 2017 at 2:57 PM, Salz, Rich wrote:
> > DSA *pDSA = d2i_DSA_PUBKEY(NULL, (const unsigned char **) &pKey,
Thanks for the help,
DSA *pDSA = d2i_DSA_PUBKEY(NULL, (const unsigned char **) &pKey, dwKeySize);
bool bRet = false;
if (pDSA)
{
bRet = DSA_verify(0, signature, 20, (BYTE *) pFile, dwSize, (DSA *) pDSA)
== 1 ? true : false;
DSA_free(pDSA);
}
Jason
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To unsubscribe: h
Thanks,
Jason
On Fri, Mar 18, 2016 at 4:23 PM, Scott Neugroschl wrote:
> I suspect the use of std::string and c_str(). Use a std::vector
> instead.
>
>
>
> *From:* openssl-users [mailto:openssl-users-boun...@openssl.org] *On
> Behalf Of *Jason Qian
> *Sent:* Friday
I am new on openSSl and run into a issue need some help.
In our application, the client and server perform a Diffie Hellman Key
exchange and then encrypt the data The client is written in C++(using
openSSL), and server is in java.
Most of time, it is running correctly, but occasionally the se
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