From mboxrd@z Thu Jan 1 00:00:00 1970 Received-SPF: pass (yandex.ru ... _spf.yandex.ru: Sender is authorized to use 'eduard.iskandarov@yandex.ru' in 'mfrom' identity (mechanism 'include:_spf-ipv4-yc.yandex.ru' matched)) receiver=mail2.stargrave.org; identity=mailfrom; envelope-from="eduard.iskandarov@yandex.ru"; helo=forward102a.mail.yandex.net; client-ip=178.154.239.85 Received: from forward102a.mail.yandex.net (forward102a.mail.yandex.net [178.154.239.85]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-256) server-digest SHA256) (No client certificate requested) by mail2.stargrave.org (Postfix) with ESMTPS id 43F5411E0C for ; Mon, 7 Aug 2023 18:41:19 +0300 (MSK) Received: from mail-nwsmtp-mxback-production-main-31.vla.yp-c.yandex.net (mail-nwsmtp-mxback-production-main-31.vla.yp-c.yandex.net [IPv6:2a02:6b8:c1f:4d43:0:640:ed74:0]) by forward102a.mail.yandex.net (Yandex) with ESMTP id 23F3D42B26 for ; Mon, 7 Aug 2023 18:41:06 +0300 (MSK) Received: from mail.yandex.ru (2a02:6b8:c0d:190:0:640:1707:0 [2a02:6b8:c0d:190:0:640:1707:0]) by mail-nwsmtp-mxback-production-main-31.vla.yp-c.yandex.net (mxback/Yandex) with HTTP id teZVEX4W48c0-tGxJvIs4; Mon, 07 Aug 2023 18:41:05 +0300 X-Yandex-Fwd: 1 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1691422865; bh=QWsIGgE1L9aFwdkE6c4XVPsxzraFvLLh2XB8k7WR/cc=; h=Message-Id:Date:Subject:To:From; b=e9DqzxJjGO7Ia1SVZ52TqNEFKvOZR0arAR/6uLQUGOpwZ2SSI9fua1yWb6Gva5ziB Izg7K6V0J8VlYeKey8RUNf9bzuY+KoeC84va4Ff25QC6+c+MvAgfzi1mOoo+1YGLdE E1SpcHQkrHXYVDTCqTy9U+/mJgZ/GAfPrtXkWYmE= Authentication-Results: mail-nwsmtp-mxback-production-main-31.vla.yp-c.yandex.net; dkim=pass header.i=@yandex.ru Received: by ztjdexdusepk5gyp.vla.yp-c.yandex.net with HTTP; Mon, 07 Aug 2023 18:41:05 +0300 From: =?utf-8?B?0JjRgdC60LDQvdC00LDRgNC+0LIg0K3QtNGD0LDRgNC0?= Envelope-From: eduard-iskandarov@yandex.ru To: "gost@lists.cypherpunks.ru" Subject: =?utf-8?B?0JDQu9Cz0L7RgNC40YLQvCDQstC+0YHRgdGC0LDQvdC+0LLQu9C10L3QuNGPINC+0YLQutGA0YvRgtC+?= =?utf-8?B?0LPQviDQutC70Y7Rh9CwINCyINCT0J7QodCiIDM0LjEwINC40Lcg0YbQuNGE0YDQvtCy0L7QuSDQv9C+?= =?utf-8?B?0LTQv9C40YHQuA==?= List-Id: "GOST-related cryptography implementations" List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: List-Archive: MIME-Version: 1.0 X-Mailer: Yamail [ http://yandex.ru ] 5.0 Date: Mon, 07 Aug 2023 20:41:05 +0500 Message-Id: <179971691422692@mail.yandex.ru> Content-Transfer-Encoding: 8bit Content-Type: text/html; charset=utf-8
Всем привет 👋
 
Для зарубежного ECDSA есть алгоритм восстановления открытого ключа из цифровой подписи.
Описание в википедии ECDSA - Public key recovery.
 
Возможно ли что то похожее для ГОСТ?
 
С уважением,
Эдуард Искандаров
 
From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by mail2.stargrave.org (Postfix, from userid 1001) id 0D1A111E72; Mon, 7 Aug 2023 21:32:10 +0300 (MSK) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=stargrave.org; s=dkim; t=1691433130; bh=U2ExHhHWxO1PBZKNor/Ntn9rl7UQCTMbkXxuJDFhJR0=; h=Date:From:To:Subject:References:In-Reply-To; b=M2pKUxB1wKGacrbFWskAFACtWk3wxB3/hKaqr+UIaZAYoPYL1DDw4JyXT0qgYb4sq 6L4JA/habBbnRXFsdqADxksSElNlODI3iVGfs4yGxpcXwY6TUHXDpdCZ+Giutl1zW7 WuWFBqg3Wdxrjl++JEPjrrhsKpeQiETs07Qp5k6FrDZ6teX87yyNLNcuAqGntr5tG5 bvjZZftynRf8+DhJdlb30jSEkh/ekCNqNoX2B2v5bwtVV1vQSMeWUDVMV80ocoyt3w 09iaO0heq4xTDSPGp0ZkVZ78rG5zBxe+/+mw0U6jkqIxQLVzD/f1mWAJGvM/hbflZ0 lfqPEgy/sQaDg== Received: by stargrave.org (Postfix, from userid 1001) id 59596A29FA; Mon, 7 Aug 2023 21:32:08 +0300 (MSK) Date: Mon, 7 Aug 2023 21:31:40 +0300 From: Sergey Matveev To: gost@lists.cypherpunks.ru Subject: Re: =?utf-8?B?0JDQu9Cz0L7RgNC40YLQvCDQstC+?= =?utf-8?B?0YHRgdGC0LDQvdC+0LLQu9C10L3QuNGPINC+0YLQutGA0YvRgtC+0LPQviA=?= =?utf-8?B?0LrQu9GO0YfQsCDQsiDQk9Ce0KHQoiAzNC4xMCDQuNC3INGG0LjRhNGA0L4=?= =?utf-8?B?0LLQvtC5INC/0L7QtNC/0LjRgdC4?= Message-ID: Mail-Followup-To: gost@lists.cypherpunks.ru References: <179971691422692@mail.yandex.ru> List-Id: "GOST-related cryptography implementations" List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: List-Archive: MIME-Version: 1.0 Content-Type: multipart/signed; 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