> From: owner-openssl-us...@openssl.org On Behalf Of mycompuser
> Sent: Wednesday, 21 August, 2013 01:35
> Thanks for the reply.
> I do have access to the server code but cannot change it's
> implementation to
> suite my requirement as the server is serving other clients in other
> platforms as
icKey rsaPubKey =
(RSAPublicKey)rsaKeyFac.generatePublic(keySpec);
return rsaPubKey;
}
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in PEM format, can I still use the same RSA object to decrypt
data?
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Sent from the OpenSSL - User
> From: owner-openssl-us...@openssl.org On Behalf Of Ken Goldman
> Sent: Tuesday, 20 August, 2013 08:08
> On 8/19/2013 3:15 PM, mycompuser wrote:
> > But the only
> > problem that I currently face is that the key pair
> generated by OpenSSL has
> > headers and footers of the form -BEGIN RSA P
On 8/19/2013 3:15 PM, mycompuser wrote:
But the only
problem that I currently face is that the key pair generated by OpenSSL has
headers and footers of the form -BEGIN RSA PUBLIC KEY- -END RSA
PUBLIC KEY- for public key likewise there is similar header and footer
for private key a
context:
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Sent from the OpenSSL - User mailing list archive at Nabble.com.
__
OpenSSL Project http://www.openssl.or
Hello,
> int encSize = RSA_public_encrypt(size, inText, sigBuffer, rsaPubKey,
> RSA_PKCS1_OAEP_PADDING);
> if(encSize == -1)
> {
> cout << "error encrytping with public key" << endl;
> return -1;
> }
> int decryptRetVal = RSA_private_decrypt(encSize, sigBuffer, plainText,
> rsaPrivKey, RSA_PKCS1_OA
Hi Marek and David,
Thank you both for your help. I applied both of your advice and It
looks like I've got things working now. As David said I was not
keeping track of the size of the encoded data, thus when it came time
to decrypt I was providing the wrong value in the flen parameter.
Hello,
> > > > RSA_public_encrypt(size, inText, sigBuffer, rsaPubKey,
> > > > RSA_PKCS1_OAEP_PADDING);
>
> > > Ooops, you just threw away the return value from
> > > RSA_public_encrypt. So how
> > > are you going to know how big the signature is?
>
> > RSA_size()
>
> I thought RSA_size gave the
> > > RSA_public_encrypt(size, inText, sigBuffer, rsaPubKey,
> > > RSA_PKCS1_OAEP_PADDING);
> > Ooops, you just threw away the return value from
> > RSA_public_encrypt. So how
> > are you going to know how big the signature is?
> RSA_size()
I thought RSA_size gave the modulus size, which is als
Hello,
> > RSA_public_encrypt(size, inText, sigBuffer, rsaPubKey,
> RSA_PKCS1_OAEP_PADDING);
>
> Ooops, you just threw away the return value from RSA_public_encrypt. So how
> are you going to know how big the signature is?
RSA_size()
Best regards,
--
Marek Marcola <[EMAIL PROTECTED]>
__
> RSA_public_encrypt(size, inText, sigBuffer, rsaPubKey,
RSA_PKCS1_OAEP_PADDING);
Ooops, you just threw away the return value from RSA_public_encrypt. So how
are you going to know how big the signature is?
> sigretVal = RSA_size(rsaPrivKey);
> unsigned char *plainText = new unsigned char[sigretV
Hello,
>
> #include
> #include "openssl/rsa.h"
> #include "openssl/pem.h"
> #include "openssl/err.h"
>
>
> using namespace std;
> int main ()
> {
> RSA *rsaPrivKey = RSA_new();
Check error code !
> RSA *rsaPubKey = RSA_new();
Check error code !
> unsigned char inText[512];
>
>
> ERR_load_c
Hello,
Extreme noob to openssl, and am running into problems using the
crypto library for RSA encryption and decryption. For now I'm just
putting together a simplistic test application to get a feel for
using the openssl libs. The problem I'm having is when I try to
decrypt an encrypte
Sure,
take a look at http://www.openssl.org/docs/crypto/crypto.html.
Renember to link against libcrypto...
Sebastian
cranium2003 wrote:
hello,
I want to write a RSA encryption decryption
program in C that encrypt data on one pc sends that
encrypted data to other pc and get it decrypted on
hello,
I want to write a RSA encryption decryption
program in C that encrypt data on one pc sends that
encrypted data to other pc and get it decrypted on
that other pc provided both pcs have Linux Platform.
But i dont know how to use openssl to program
in C. I know how to create
Thank you :)Sebastian <[EMAIL PROTECTED]> wrote:
Hmm,take a look at routines like RSA_new() to create RSA structures. As you coded 'sizeof apub', this will return the size of a _pointer_ - assuming a 32-bit architecture you will get round about four bytes ;-).See: http://www.openssl.org/docs/crypto
Hmm,
take a look at routines like RSA_new() to create RSA structures. As you coded
'sizeof apub', this will return the size of a _pointer_ - assuming a 32-bit
architecture you will get round about four bytes ;-).
See: http://www.openssl.org/docs/crypto/RSA_new.html
The runtime error is caused b
Hi all,
I'm trying to develop a C++ application to encrypt and decrypt data using RSA public key cryptography scheme. I have generated the public/private keys using OpenSSL command line tool. The following C++ code should read a public key, encrypt data, read private key and decrypt the data:
**
Vishwas wrote:
Dear SSLites,
Please observe the following operations.
I do the following:-
key1 = RSA_generate_key(n, e1, NULL, NULL);
num = RSA_private_encrypt(plen, ptext_ex, ctext, key1, RSA_PKCS1_PADDING);
RSA_public_decrypt(num, ctext, ptext, key1, RSA_PKCS1_PADDING);
Average encryption time i
Dear SSLites,
Please observe the following operations.
I do the following:-
key1 = RSA_generate_key(n, e1, NULL, NULL);
num = RSA_private_encrypt(plen, ptext_ex, ctext, key1, RSA_PKCS1_PADDING);
RSA_public_decrypt(num, ctext, ptext, key1, RSA_PKCS1_PADDING);
Average encryption time is = 5463361
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