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  • unable to decrypt certain files with secret key pgp 6.5.8, any advice?

    - by pythonian29033
    Ok so I do some stuff for a client of ours that requires me to decrypt some of their suppliers messages, the thing is, something weird happened the other day and I can only decrypt some files with an old decryption script, but for certain files I get the error: "Message is encrypted. Cannot decrypt message. It can only be decrypted by: 2048 bits, Key ID 98627E12, Created 2000-03-02 "Other Guy "" as you can see, the key is ancient and I was still 9years old when it was created, so I have know idea who this "Other Guy" is. . .and I can't understand why I'm able to decrypt some of the supplier's files with the decryption script, but for others it fails. PS: the supplier only uses one public key, so this should work for all the files, any advice?

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  • How to obtain a S/MIME certificate for e-mail encryption?

    - by mghg
    There are parties, e.g. enterprises, that uses S/MIME certificates for e-mail encryption. To my understanding Thunderbird has support by default for S/MIME. But I have not found a way to obtain a personal S/MIME certificate to be used on a Ubuntu system. Thus my question: How to obtain a S/MIME certificate for e-mail encryption? Moreover, is it correct to believe that Thunderbird has support by default for S/MIME? I am fully aware of PGP, GnuPG and OpenPGP for public-key cryptography and secure e-mail communication. In my opinion, it is very useful that OpenPGP is installed by default on Ubuntu systems. But I need to find a method to communicate securely with parties that use S/MIME and not PGP/GnuPG/OpenPGP.

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  • problem generating pgp keys?

    - by pavankumar
    I'm using RSACryptoServiceProvider I've generated public key and private key. The keys generated by it are in the following format: Public key: <RSAKeyValue> <Modulus>m9bAoh2...eGNKYs=</Modulus> <Exponent>AQAB</Exponent> </RSAKeyValue> Private key: <RSAKeyValue> <Modulus>m9bAo...ZAIeGNKYs=</Modulus> <Exponent>AQAB</Exponent> <P>xGj/UcXs...R1lmeVQ==</P> <Q>yx6e18aP...GXzXIXw==</Q> <DP>NyxvnJ...1xAsEyQ==</DP> <DQ>La17Jycd...FhApEqwznQ==</DQ> <InverseQ>JrG7WCT...Hp3OWA==</InverseQ> <D>RdWsOFn....KL699Vh6HK0=</D> </RSAKeyValue> but using PGP Desktop i've generated keys like this - Public key: mQCNBEoOlp8BBACi/3EvBZ83ZduvG6YHu5F0P7Z3xOnpIsaPvTk0q+dnjwDUa5sU lEFbUZgDXSz7ZRhyiNqUOy+IG3ghPxpiKGBtldVpi33qaFCCEBiqsxRRpVCLgTUK HP2kH5ysrlFWkxTo =a4t9 Private key: lQHgBEoOlp8BBACi/3EvBZ83ZduvG6YHu5F0P7Z3xOnpIsaPvTk0q+dnjwDUa5sU lEFbUZgDXSz7ZRhyiNqUOy+IG3ghPxpiKGBtldVpi33qaFCCEBiqsxRRpVCLgTUK waBnEitQti3XgUUEZnz/rnXcQVM0QFBe6H5x8fMDUw== =CVPD So when I'm passing the keys generated by PGP Desktop it is able to do encryption and decryption perfectly but when im passing the keys generated by RSACryptoServiceProvider I'm not able to encrypt and decrypt? Can anyone please tell me how to generate keys in the pattern generated by PGP?

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  • Is there any benefit to encrypting twice using pgp?

    - by ojblass
    I am asking from a "more secure" perspective. I can imagine a scenario with two required private keys needed for decryption scenarios that may make this an attractive model. This is to settle an argument. My vote is that it is not adding any additional security other than having to compromise two different private keys. I think that if it was any more secure than encrypting it one million times would be the best way to secure informaiton and I don't buy it. So I guess my question becomes is a two locking mechanism equivalent to another one locking mechanism with a single key? Update: Forgive me if the answer is obvious but my bread goes dead as I read books on the topic.

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  • Encrypting and decrypting single file with master password and passphrase

    - by Iori
    Last night my system shutdown unexpectedly and when i restart it, it gave me superblock error. will then i fixed a little but. i was able to retrive my encrypted files which i encrypted my pgp public key but i was not able to retrive my private key or public key now i have ecrypted file which cannot be open because i have lost my private key. is there any way that i can encrypt my file by providing only master password and passphrase and no physical key or private key and when i am on another computer i can easily open it my same master password and passphrase. Thanks in advance

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  • Monitoring for non-pgp files

    - by Aheho
    For privacy reasons, I want to prevent my users from posting unencrypted files to my ftp site. It is company policy that all data exchanges of sensitive data be encrypted with PGP. I'd like to setup a program to monitor the ftp folders and whenever a new file is placed there, verify that it is in fact encrypted. I can't just rely on the file extension because in some cases, our trading partners require a specific filename that doesn't have a .PGP on the end. Is there a library or another method I can use to verify that a given file is encrypted? I'm using C# and .NET on a windows platform.

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  • Reading PGP key information

    - by calccrypto
    can someone show a description of the information of what a pgp looks like if only the descriptions were there but not the actual information? something like (i dont remember if the values are correct): packet-type[4 bits], total length in bytes[16 bits], packet version type [4 bits], creation-time[32 bits], encryption-algorithm[8 bits], ...,etc,etc ive tried to understand rfc4880, but its tedious and confusing. so far, i am think i have extracted the 4 i wrote above, but i cant seem to get the rest of the information out. can anyone help? i know i can just find some pgp program, but the whole point of this is to allow me to learn how those programs work in the first place

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  • Digital signatures and encryption in GMail

    - by Antonio
    I just wonder if there is a way to use SSL certificates or PGP keys for signing my email. At the moment I have to setup S/MIME in Outlook (or another thick client) to send signed messages via SMTP. It works for me, but I'm looking for a way to do the same using GMail's web interface.

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  • Problem adding public key for apt

    - by highBandWidth
    I was trying to get the official mongodb for Ubuntu, following the instructions at http://www.mongodb.org/display/DOCS/Ubuntu+and+Debian+packages After adding the deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen line in my sources, I need to add the pgp key since synaptic says W: GPG error: http://downloads-distro.mongodb.org dist Release: The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 9ECBEC467F0CEB10 Again following instructions, I did sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 7F0CEB10 this says Executing: gpg --ignore-time-conflict --no-options --no-default-keyring --secret-keyring /etc/apt/secring.gpg --trustdb-name /etc/apt/trustdb.gpg --keyring /etc/apt/trusted.gpg --primary-keyring /etc/apt/trusted.gpg --keyserver keyserver.ubuntu.com --recv 7F0CEB10 gpg: requesting key 7F0CEB10 from hkp server keyserver.ubuntu.com ?: keyserver.ubuntu.com: Connection refused gpgkeys: HTTP fetch error 7: couldn't connect: Connection refused gpg: no valid OpenPGP data found. gpg: Total number processed: 0 Interestingly, I also get $ apt-key list gpg: fatal: /home/myname/.gnupg: directory does not exist! secmem usage: 0/0 bytes in 0/0 blocks of pool 0/32768 How can I get apt to use this source?

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  • Shell script not picking up password file...

    - by BigDogsBarking
    Running the below shell script seems to ignore the password file I'm feeding it. I'm continually prompted for it. If I enter it, the rest of the script goes without a hitch, but as I'm running it via cron, I really need to get it to read from the file... Any suggestions? #!/bin/sh p=$(<password.txt) set -- $p pass_phrase=$1 destination="/var/www/d" cd /var/sl/ for FILE in *.pgp; do FILENAME=${FILE%.pgp} gpg --passphrase "$pass_phrase" --output "$destination/$FILENAME" --decrypt "$FILE" rm -f $FILE done

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  • Validating signature trust with gpg?

    - by larsks
    We would like to use gpg signatures to verify some aspects of our system configuration management tools. Additionally, we would like to use a "trust" model where individual sysadmin keys are signed with a master signing key, and then our systems trust that master key (and use the "web of trust" to validate signatures by our sysadmins). This gives us a lot of flexibility, such as the ability to easily revoke the trust on a key when someone leaves, but we've run into a problem. While the gpg command will tell you if a key is untrusted, it doesn't appear to return an exit code indicating this fact. For example: # gpg -v < foo.asc Version: GnuPG v1.4.11 (GNU/Linux) gpg: armor header: gpg: original file name='' this is a test gpg: Signature made Fri 22 Jul 2011 11:34:02 AM EDT using RSA key ID ABCD00B0 gpg: using PGP trust model gpg: Good signature from "Testing Key <[email protected]>" gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. Primary key fingerprint: ABCD 1234 0527 9D0C 3C4A CAFE BABE DEAD BEEF 00B0 gpg: binary signature, digest algorithm SHA1 The part we care about is this: gpg: WARNING: This key is not certified with a trusted signature! gpg: There is no indication that the signature belongs to the owner. The exit code returned by gpg in this case is 0, despite the trust failure: # echo $? 0 How do we get gpg to fail in the event that something is signed with an untrusted signature? I've seen some suggestions that the gpgv command will return a proper exit code, but unfortunately gpgv doesn't know how to fetch keys from keyservers. I guess we can parse the status output (using --status-fd) from gpg, but is there a better way?

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  • Errors generating gpg keypair

    - by Evan Lynch
    I posted this originally on stackoverflow, but was told that it was offtopic and this would be the better place to post it, so I am reposting it here and deleting my original topic. I have a rather old PGP key, but I've long ago lost the private key for it, so I'm trying to generate a new key with GPG on Windows 7. While it technically generates the key, GPA crashes every time I generate the keypair. I've tried this four times now and just downloaded what appears to be the latest version of Gpg4Win and am still receiving this problem. A comment on my original post informed me that GPA crashes is not a very good description of the problem, but unfortunately I can't do much better than that: all it tells me is "gpa.exe has crashed and will close now", I don't get an error dump or anything. Is there anything I can do to fix this, or is this just a bug in the latest version of Gpg4Win? Here are the specs of GPG that I'm using: GPA 0.9.4. GnuPG 2.0.22. My operating system is Windows 7 64 Bit, and I have 5 GB of RAM. Also, I was told to try generating the keypair on the command line but can't find any documentation for how to do this in Windows 7. If anyone could link me to current documentation for this, that would be a good workaround for solving this problem.

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  • How to encrypt data in php using Public/Private keys?

    - by Xeoncross
    I have a small string of some data (less than 1kb) that I would like to have user agents pass to other sites when they are sent from my site. In order for the other sites to verify that I was the one that created the string I though of two options. The server pings me back to confirm (like paypal, openid, etc..) I use public/private keys to prove I sent the message (like PGP, DKIM, etc..) I don't want to setup HMAC because that would mean I have to use custom keys for each site which would be a pain. Out of those two choices it seems that #2 would save on bandwidth which makes it seem like a better choice. So how can you setup public/private key cryptography using PHP and are there any downsides?

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  • Error logging with PHP and mod_fcgid

    - by nbv4
    I have a mediawiki install that is acting up. Whenever I try to save an article, it goes to a blank screen. All though if I refresh that blank screen, it will go on to work. I have no idea why it's doing that, but it seems to be that it's a problem with PHP. I guess by default errors don't get logged when using mod_fcgid, because I can't find an error log anywhere. I tried enabling logging in the /etc/php5/cgi/php.ini, but that didn't do anything. How do I achieve php error logging? I'm using ubuntu 9.10.

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  • How to make gpg2 to flush the stream?

    - by Vi
    I want to get some slowly flowing data saved in encrypted form at the device which can be turned off abruptly. But gpg2 seems to not to flush it's output frequently and I get broken files when I try to read such truncated file. vi@vi-notebook:~$ cat asdkfgmafl asdkfgmafl ggggg ggggg 2342 2342 cat behaves normally. I see the output right after input. vi@vi-notebook:~$ gpg2 -er _Vi --batch ?pE??x...(more binary data here)....???-??.... asdfsadf 22223 sdfsdfasf Still no data... Still no output... ^C gpg: signal Interrupt caught ... exiting vi@vi-notebook:~$ gpg2 -er _Vi --batch /tmp/qqq skdmfasldf gkvmdfwwerwer zfzdfdsfl ^\ gpg: signal Quit caught ... exiting Quit vi@vi-notebook:~$ gpg2 < /tmp/qqq You need a passphrase to unlock the secret key for user: "Vitaly Shukela (_Vi) " 2048-bit ELG key, ID 78F446CA, created 2008-01-06 (main key ID 1735A052) gpg: [don't know]: 1st length byte missing vi@vi-notebook:~$ # Where is my "skdmfasldf" How to make gpg2 to handle such case? I want it to put enough output to reconstruct each incoming chunk of input. (Also fsyncing after each output can be benefitial as an additional option). Should I use other tool (I need pubkey encryption).

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  • How do I integrate GPG with alpine?

    - by Thomas
    I have tried a couple of howtos, but they seem to either be too out of date or just plain don't work (don't work for me, at least). How do I sign and encrypt messages, as well as check integrity of received messages (and decrypt them if needed) in pine/alpine? I tried pipeing (with "|") but the terminal doesn't seem to cooperate so that I can provide my passphrase.

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  • How to make gpg2 flush the stream?

    - by Vi
    I want to get some slowly flowing data saved in encrypted form at the device which can be turned off abruptly. But gpg2 seems to not to flush it's output frequently and I get broken files when I try to read such truncated file. vi@vi-notebook:~$ cat asdkfgmafl asdkfgmafl ggggg ggggg 2342 2342 cat behaves normally. I see the output right after input. vi@vi-notebook:~$ gpg2 -er _Vi --batch ?pE??x...(more binary data here)....???-??.... asdfsadf 22223 sdfsdfasf Still no data... Still no output... ^C gpg: signal Interrupt caught ... exiting vi@vi-notebook:~$ gpg2 -er _Vi --batch /tmp/qqq skdmfasldf gkvmdfwwerwer zfzdfdsfl ^\ gpg: signal Quit caught ... exiting Quit vi@vi-notebook:~$ gpg2 " 2048-bit ELG key, ID 78F446CA, created 2008-01-06 (main key ID 1735A052) gpg: [don't know]: 1st length byte missing vi@vi-notebook:~$ # Where is my "skdmfasldf" How to make gpg2 to handle such case? I want it to put enough output to reconstruct each incoming chunk of input. (Also fsyncing after each output can be benefitial as an additional option). Should I use other tool (I need pubkey encryption).

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  • how i can encrypt each file with its own public key ??

    - by Mohammad AL-Rawabdeh
    how i can encrypt each file with its own public key for example :- there exist 3 company (X,Y and Z)each company sent to me its own public key so that i have now 3 public key 1- x.pub 2- y.pub 3- z.pub now i want to send file to each company and encrypt it by its company public key 1- encrypt file1.txt by x.pub and send it to company X 2- encrypt file2.txt by y.pub and send it to company Y 3- encrypt file3.txt by z.pub and send it to company Z please how i can do the above by writting batch file my operating system is Windows

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  • Leopard mail.app quoted-printable weirdness

    - by pehrs
    I am not sure if this is a bug in mail.app, or a configuration I just can't find. It might also be a strange sideffect of GPGmail. Mail.app correctly displays all e-mails on my IMAP server, except for the e-mails in my "Sent Messages" folder. In the sent messages folder it messes up åäö, in typical quoted-printable with wrong char-set fashion. They become ‰ˆ. When looking at the source of the e-mails it seems like the header generated by mail.app is correct: Message-Id: <> From: To: In-Reply-To: <> Content-Type: multipart/signed; protocol="application/pgp-signature"; micalg=pgp-sha1; boundary="Apple-Mail-4--741321197" X-Smtp-Server: smtp.example.com Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (Apple Message framework v936) Subject: Example subject Date: Fri, 26 Mar 2010 10:14:14 +0100 References: <> X-Pgp-Agent: GPGMail 1.2.0 (v56) This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --Apple-Mail-4--741321197 Content-Type: text/plain; charset=ISO-8859-1; format=flowed; delsp=yes Content-Transfer-Encoding: quoted-printable <Text here with =E5=E4=F6> --Apple-Mail-4--741321197 content-type: application/pgp-signature; x-mac-type=70674453; name=PGP.sig content-description: This is a digitally signed message part content-disposition: inline; filename=PGP.sig content-transfer-encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG/MacGPG2 v2.0.12 (Darwin) iEYEARECAAYFAkus62kACgkQlIRLofxhDjYnnwCcDmCXuMGsKlh3a418s12coJgn 36sAoKMdkP3+g/OMK+Ps7AbjQq4Nbqzv =XMko -----END PGP SIGNATURE----- --Apple-Mail-4--741321197-- Thunderbird has no problem displaying the messages. So, how can I get mail.app to use the correct charset?

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  • Why can`t we treat SSL Certs like Pgp keys instead of trusting CAs?

    - by yarun can
    I am dumb and stupid and I do not know all the technical aspects of SSL and server/client side implications and implementations. However I understand them good enough from user point of view to use SSL and encyrption daily. I was thinking that how silly it is to trust some unknown/known CAs when it comes to our our certificates for our servers. There had been many cases of misconduct, misuse, compromises and theft of certificates/ca keys from those places. On top of those known issues we also have to pay these guys regularly. I am wondering why can not we use/treat web server certificates like we use our pgp keys? So I sign a SSL certificate and send to a central server. And then each user accessing my site checks the validity and the keys from some central server (like pgp key servers). Is this a stupid idea? If so what could be a better idea than current system of issuing valid certificates. I am looking for a better than more secure idea. Naturally this is not a solution to an existing problem, rather it will be a hypothetical solution for some future implementation of a currently messed up web of trust on the internet due to recent news about NSA and their criminal buddies around the world. thanks

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  • OpenPGP Signing

    - by singpolyma
    I'm reading RFC4880 in an attempt to produce an implementatdion of a subset of OpenPGP (RSA signatures) using http://phpseclib.sourceforge.net/. I have the publickey and compression-literal-signature packets parsed out. I can extract n and e and feed them to Crypt_RSA to construct a verifier. I tell it I'm using sha256. It then needs a "message" and a " signature" parametre. I get the signature data out of the signature packet no problem. The question I have is: what is "message"? According to sec tion 5.2.4 it's some combination of the literal data packet(s?) (their bodies or the whole packet?) and the "hashed" subpackets. Do I just concat all the data packets and the hashed packets together in the order they appear?

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  • gpg error - connection already closed?

    - by OopsForgotMyOtherUserName
    omg... hope someone can help me because I am so lost as to what to try next.... I don't know what is causing the error to happen, and I don't see how to figure it out... Keep going between the pgloader.conf examples and what I have, and I don't understand why I keep getting the 'connection already closed' error? The first few lines of my fr.conf is at the very end... I'd really appreciate / love some guidance here... Been trying to get this thing going all morning, and am even getting stuck just on this part... Running this command at the command line: /usr/bin/pgloader -c /var/mybin/pgconfs/fr.conf Yields this in the pgloader.log (with the process just hanging) more /tmp/pgloader.log 27-03-2010 12:22:53 pgloader INFO Logger initialized 27-03-2010 12:22:53 pgloader INFO Reformat path is ['/usr/share/python-support/pgloader/reformat'] 27-03-2010 12:22:53 pgloader INFO Will consider following sections: 27-03-2010 12:22:53 pgloader INFO fixed 27-03-2010 12:22:54 fixed INFO fixed processing 27-03-2010 12:22:54 pgloader INFO All threads are started, wait for them to terminate 27-03-2010 12:22:57 fixed ERROR connection already closed 27-03-2010 12:22:57 fixed INFO closing current database connection [pgsql] host = localhost port = 5432 base = frdb user = username pass = password [fixed] table = fr format = fixed filename = /var/www/fr.txt ...

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  • Is there a Mac utility that does low level drive integrity check and repair?

    - by Puzzled Late at Night
    The PGP Whole Disk Encryption for Mac OS X Quick Start User Guide version 10.0 contains the following remarks: PGP Corporation deliberately takes a conservative stance when encrypting drives, to prevent loss of data. It is not uncommon to encounter Cyclic Redundancy Check (CRC) errors while encrypting a hard disk. If PGP WDE encounters a hard drive with bad sectors, PGP WDE will, by default, pause the encryption process. This pause allows you to remedy the problem before continuing with the encryption process, thus avoiding potential disk corruption and lost data. To avoid disruption during encryption, PGP Corporation recommends that you start with a healthy disk by correcting any disk errors prior to encrypting. and As a best practice, before you attempt to use PGP WDE, use a third-party scan disk utility that has the ability to perform a low-level integrity check and repair any inconsistencies with the drive that could lead to CRC errors. These software applications can correct errors that would otherwise disrupt encryption. The PGP WDE Windows user guide suggests SpinRite or Norton Disk Doctor. What recourse do I have on the Mac?

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