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Re: RSA sign/verify and hash generation functions
From: |
Nikos Mavrogiannopoulos |
Subject: |
Re: RSA sign/verify and hash generation functions |
Date: |
Wed, 08 Dec 2010 23:22:55 +0100 |
User-agent: |
Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Thunderbird/3.0.10 |
On 12/08/2010 09:17 PM, Murray S. Kucherawy wrote:
> Here's something interesting I found while trying to figure this out.
> % openssl rsa -in key.pem -text
> Private-Key: (1024 bit)
> modulus:
> 00:b8:19:41:ab:f9:df:fa:48:53:73:54:b6:29:a6:
[...]
> ...and then dumping the modulus and private exponent through code that uses
> the same format as OpenSSL:>
> modulus:
> b8:19:41:ab:f9:df:fa:48:53:73:54:b6:29:a6:19:
> Note that when using GnuTLS, the leading "00" octet in the modulus is missing.
> Is this expected? Could it explain the different signature I get from
GnuTLS 2.11.6?
The export_raw() functions do not add the leading zero. Adding them
would be better (and I'll modify them to do), but it doesn't explain the
different signature.
regards,
Nikos
- Re: RSA sign/verify and hash generation functions, Nikos Mavrogiannopoulos, 2010/12/01
- RE: RSA sign/verify and hash generation functions, Murray S. Kucherawy, 2010/12/06
- RE: RSA sign/verify and hash generation functions, Murray S. Kucherawy, 2010/12/07
- RE: RSA sign/verify and hash generation functions, Murray S. Kucherawy, 2010/12/08
- Re: RSA sign/verify and hash generation functions, Nikos Mavrogiannopoulos, 2010/12/08
- RE: RSA sign/verify and hash generation functions, Murray S. Kucherawy, 2010/12/08
- Re: RSA sign/verify and hash generation functions, Alessandro Vesely, 2010/12/09
- Re: RSA sign/verify and hash generation functions, Nikos Mavrogiannopoulos, 2010/12/09
- Re: RSA sign/verify and hash generation functions, Alessandro Vesely, 2010/12/11
- Re: RSA sign/verify and hash generation functions, Nikos Mavrogiannopoulos, 2010/12/08
- RE: RSA sign/verify and hash generation functions, Murray S. Kucherawy, 2010/12/08
- Re: RSA sign/verify and hash generation functions, Nikos Mavrogiannopoulos, 2010/12/09
- RE: RSA sign/verify and hash generation functions, Murray S. Kucherawy, 2010/12/09