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Message-ID: <atuPu9vPuwWH7MmQ@fantomas.sk>
Date: Fri, 23 Oct 2026 18:47:55 +0200
From: Matus UHLAR - fantomas <uhlar@...tomas.sk>
To: john-users@...ts.openwall.com
Subject: Re: cracking RSA, ECDSA certificates?
>On 10/23/26 8:49 AM, Matus UHLAR - fantomas wrote:
>>after this weeks infamous eMudhra incident, I was curious it john
>>supports cracking RSA, ECDSA (and possibly others) keys?
>>
>>I see formats pem and pem-opencl, do they only crack encryption of
>>pem keys?
On 23.10.26 09:11, Robert Moskowitz wrote:
>This incident reads as the private key itself is week and anyone can
>create their own private key pem file and have fun with it.
I hope you don't mind continuing discussion here
>two different attacks:
>
>Have pem, guess symmetric key to decrypt it.
>Have only public key (easy to get), guess the asymmetric private key
>to match public key.
I was wondering about the latter - finding weak private keys from known
public keys.
--
Matus UHLAR - fantomas, uhlar@...tomas.sk ; http://www.fantomas.sk/
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Varovanie: na tuto adresu chcem NEDOSTAVAT akukolvek reklamnu postu.
Fighting for peace is like fucking for virginity...
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