Re: DH session Key length

So, have I to generate a prime with length = 3200 bits ?, ( the corresponding exponent will belong to 3200-bit MODP group ) in order to generate an AES 128 session key ? ( I use 2 as generator ). Here http://tools.ietf.org/html/rfc3526, it is said : "The new Advanced Encryption Standard (AES)

Re: Date format for X.509 certificate

That's simple. Thank you again Erik. On Tue, Apr 19, 2011 at 5:22 PM, Erik Tkal wrote: > 110419141516Z = 2011 04(April) 19th 14:15:16Z(UTC) > > > > *Erik Tkal** > *Juniper OAC/UAC/Pulse Development > > > > *From:* owner-openssl-us...@openssl.org [mailto: >

Re: Date format for X.509 certificate

Check out the date and time functions in PHP and there are ways to format that number into something a little more human readable. Contact me if you would like to know more. This isn't a php forum so no point in talking about it here. On 11-04-19 5:22 PM, Erik Tkal wrote: > 110419141516Z = 2011 0

RE: Date format for X.509 certificate

110419141516Z = 2011 04(April) 19th 14:15:16Z(UTC) Erik Tkal Juniper OAC/UAC/Pulse Development From: owner-openssl-us...@openssl.org [mailto:owner-openssl-us...@openssl.org] On Behalf Of Matt C Sent: Tuesday, April 19, 2011 5:19 PM To: openssl-users@openssl.

Date format for X.509 certificate

I've extracted a date from a public certificate using the PHP command openssl_x509_parse. The date looks like this: 110419141516Z Can someone tell me how to make sense of this date (in PHP if possible). Thank you! Matt

RE: OpenSSL for Unix

It would help if you specified which of the many thousands of releases and versions of UNIX you are talking about, and what architecture/processor/bit-width you need. There won't be compiled versions available for most combinations. You'd need to follow the instructions which come with it if yo

Re: How is MD5 fingerprint on X509 created?

Thank you Erik and Wim, that's exactly the information I needed! On Tue, Apr 19, 2011 at 2:27 PM, Wim Lewis wrote: > > On 19 Apr 2011, at 10:55 AM, Matt C wrote: > > Should I be hashing the entire contents of the PEM file, only part, or is > there additional data I need to add? > > The fingerpri

Re: DH session Key length

Addendum - depending on the use of DH (usually using the DH shared secret as a basis for key exchange), the choice of prime is more important than private exponent length. Safe primes or strong primes are warranted. Most systems use small generators (e.g., 2). - M On Mon, Apr 18, 2011 at 7:25 P

Re: DH session Key length

The private exponent length need only be sufficient to make a brute force search (using the public exponent as a target) computationally infeasible, since the discrete log problem is still in the "hard" category. Cogent DH Private Exponent recommendations are always stated in terms of P, e.g., x :

X509 certificate verification error when purpose is set to 'any' using openssl api's

Please can anybody help? This is kind of priority issue for me. I have following set of certificates with X509 extensions defined for code signing in PKCS7 format. Root CA - Key usage (critical): Certificate Sign, CRL Sign CVC Sub-CA - Key usage (critical): Certificate Sign, CRL Sign CVC cert

Re: OpenSSL for Unix

On Tue, Apr 19, 2011 at 11:40:56AM +0100, João Alpande wrote: > Good Morning, > > Where can I get a compiled version of OpenSSL for Unix? > > how to install openssl in unix ? > > Thanks´s > > > > João Alpande > For which Unix box? -- Member - Liberal International This is doc...@nl2k.a

Re: How is MD5 fingerprint on X509 created?

On 19 Apr 2011, at 10:55 AM, Matt C wrote: > Should I be hashing the entire contents of the PEM file, only part, or is > there additional data I need to add? The fingerprint that openssl computes is the hash of the entire certificate in DER format. You should be able to recover the DER-formatte

RE: How is MD5 fingerprint on X509 created?

The thumbprint is the hash of the certificate data in DER format. For example, the following commands would work for both forms: openssl x509 -in user.pem -fingerprint -md5 -noout openssl x509 -in user.cer -inform der -fingerprint -md5 -noout But I f you want to use a raw hash then only the se

RE: verify without issuer-certificate?

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How is MD5 fingerprint on X509 created?

Hello, I am able to generate an MD5 fingerprint with the following command. openssl x509 -in user.pem -fingerprint -md5 -noout This fingerprint matches the fingerprint displayed by Thunderbird/Firefox. I am trying to generate an MD5 using a hash function in PHP, http://nl2.php.net/manual/en/fun

Re: OpenSSL for Unix

From: João Alpande >Where can I get a compiled version of OpenSSL for Unix? >how to install openssl in unix ? It would help if you could specify which unix os? JD __ OpenSSL Project http://www.ope

OpenSSL for Unix

Good Morning, Where can I get a compiled version of OpenSSL for Unix? how to install openssl in unix ? Thanks´s João Alpande

Re: verify without issuer-certificate?

Am 19.04.2011 09:19, schrieb ch: hi! Can I verify a message or just a certificate WITHOUT having all the issuer certificats (up to the RootCA) in my store?? Is there a option in the commandline tools? I was not able to find one in the man-pages. You can verify a message without checking th

verify without issuer-certificate?

hi! Can I verify a message or just a certificate WITHOUT having all the issuer certificats (up to the RootCA) in my store?? Is there a option in the commandline tools? I was not able to find one in the man-pages. thanks, chris __

Setting up NAS Server for OpenSSL

Hi All, First off I have a DISKSTATION DS410 in my business and I am trying to set it up for remote access such that: (1) Clients can 'map the drive' on their laptops (2) VPN to their desktops (which are on the local network with the DS410) I am trying to be secure and use OpenSSL with certifca