Re: cipher algorithms

Hello, I have some doubts regarding OpenSSL cipher algorithms and I was wondering if someone could help me with that. 1) If my understanding is correct, the client sends the list of supported cipher algorithms and the server will choose one algorithm of such list in order to

RE: cipher algorithms

Thanks Marek! One last question, can an algorithm or cipher suite be enabled or disabled on OpenSSL by an user (I mean, without needing to recompile and redistribute OpenSSL binaries)? Regards, Mateus -Original Message- From: [EMAIL PROTECTED] [mailto:owner-openssl- [EMAIL

Doubt about AES_ctr128_encrypt() function

Hello everybody,I have a doubt about how to use the AES_ctr128_encrypt() function. If i want to use this function to decrypt, how should be iniziled the *num argument? Has the result the same size as the input (length,third argument)? Thanks for your help!

RE: cipher algorithms

Thanks Marek! One last question, can an algorithm or cipher suite be enabled or disabled on OpenSSL by an user (I mean, without needing to recompile and redistribute OpenSSL binaries)? You can definitively disable an algorithm by not including it in the libraries. Most programs that use

RE: cipher algorithms

Yes, I know you can enable/disable the algorithms at build time. However, my question is if a user could enable/disable an algorithm when the library is already built (even by the application using OpenSSL or some generic configuration of OpenSSL). I thought there was actually no way to do

RE: cipher algorithms

Surely http://www.openssl.org/docs/ssl/SSL_CTX_set_cipher_list.html. G. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Baur, Mateus (Brazil RD-CL) Sent: 05 March 2008 12:25 To: openssl-users@openssl.org Subject: RE: cipher algorithms Yes, I know

openssl + cipher

I'm new to using openssl and I need to change the cipher that is currently being used. I'm using a product called ssl_proxy that doesn't have a config file for changing/limiting any of these attributes. The current cipher is aes-256 and I need to change it to something stronger with a key

Globally Unique Serials in CA Chains

Architecture question: Do certificate serial numbers within a multi-trier certificate authority chain need be globally unique? A Thunderbird user recently received the following error because his cert serial number, as signed by one CA, matched the serial number of the server, both of which

aes in evp

Hi, I'm writing some code where I'm using the EVP encryption routines described here: http://www.openssl.org/docs/crypto/EVP_EncryptInit.html I'm trying to use AES. Is AES supported through this interface? It's not listed in the documentation as a supported cipher. -JP

EVP_CIPHER_CTX_init question

Is it appropriate to call the sequence EVP_CipherInit_ex() EVP_CipherUpdate_ex() EVP_CipherFinal_ex() *multiple* times between init and cleanup? In other words, should I do this: EVP_CIPHER_CTX_init() EVP_CipherInit_ex() EVP_CipherUpdate_ex() EVP_CipherFinal_ex() EVP_CIPHER_CTX_cleanup() ...

Re: Globally Unique Serials in CA Chains

In message [EMAIL PROTECTED] on Wed, 05 Mar 2008 10:07:18 -0500, Brian A. Seklecki [EMAIL PROTECTED] said: lavalamp Architecture question: lavalamp lavalamp Do certificate serial numbers within a multi-trier lavalamp certificate authority chain need be globally unique? Depends on what you mean

Re: aes in evp

The ciphers are all found in evp.h, EVP_aes_128_cbc, for example. Is there a reason why this is undocumented? -JP __ OpenSSL Project http://www.openssl.org User Support Mailing List

RE: cipher algorithms

Hello, One last question, can an algorithm or cipher suite be enabled or disabled on OpenSSL by an user (I mean, without needing to recompile and redistribute OpenSSL binaries)? Yes, from server or client point of view you can control this with SSL_CTX_set_cipher_list() function call. Best

Using OpenSSL cryptographic functions in a multi-threaded application

We are using only the OpenSSL cryptographic functionality, the EVP and HMAC functions, in a multi-threaded application. Do we need to do anything to ensure thread safety ? The documentation mentions CRYPTO_set_locking_callback() and CRYPTO_set_id_callback() but we are not calling these

Re: Using OpenSSL cryptographic functions in a multi-threaded application

Hi! We are using only the OpenSSL cryptographic functionality, the EVP and HMAC functions, in a multi-threaded application. Do we need to do anything to ensure thread safety ? The documentation mentions CRYPTO_set_locking_callback() and CRYPTO_set_id_callback() but we are not calling

TLS 1.1 is available in openssl?

dear all, does openssl supports TLS v1.1? if yes, from which version onwards? Thanks in advance San --

RE: FIPS for WinCE

Hi Steve, Thanks for your response... I've now managed to 'work around' the cross-compilation by using the fips_standalone_sha1.exe from a win32 build to generate the sha1 values used during the build and then disabling the 'self' tests. The resulting libraries seem to work well for me, but do

cluster wide session-id uniqueness. really?

Greetings. I wonder if session-id generator really provide uniqueness. The def_generate_session_id check uniqueness by calling SSL_has_matching_session_id. (ssl_sess.c) SSL_has_matching_session_id check uniqueness by calling lh_retrieve(ssl-ctx-sessions, r). (ssl_lib.c) So, if