* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:04 ` Dale
@ 2012-01-19 22:41 ` Paul Hartman
2012-01-19 23:01 ` Dale
2012-01-19 22:42 ` Alan McKinnon
` (2 subsequent siblings)
3 siblings, 1 reply; 49+ messages in thread
From: Paul Hartman @ 2012-01-19 22:41 UTC (permalink / raw
To: gentoo-user
On Thu, Jan 19, 2012 at 4:04 PM, Dale <rdalek1967@gmail.com> wrote:
> Chris Walters wrote:
>> On 1/19/2012 11:57 AM, Frank Steinmetzger wrote:
>>> On Thu, Jan 19, 2012 at 12:53:07AM -0600, Dale wrote:
>>>
>>>> While on this subject, sort of. Who on here as their email set up to
>>>> encrypt and decrypt emails? I want to test some things OFF LIST.
>>>
>>> Well, if you had signed your mail, then I could write you encrypted. :)
>>
>> This is a test. Enigmail has been trying to use a revoked and expired key to
>> sign my messages, lately.
>>
>> Chris
>>
>
>
> I have a question now. I got a message from Paul Hartman and replied to
> it, off list, and it was encrypted and I hope my reply was too. My
> question is this. How do you make a email that only the sender and
> receiver can read? As a example. I'm talking to a Doctor or a lawyer
> and I don't want anyone but that person to see the email. How do I do
> that? Can that be done.
>
> The message that I am repying to appears to be something, encypted
> maybe, but I think anyone on this list that uses the tool can read it.
> Am I correct?
>
> I'm trying to get a full understanding of this thing. Ya'll know how I
> am. lol
There are basically 2 things PGP/GPG normally does for emails: signing
and encrypting. They are not mutually exclusive.
Signing (like you see on a lot of messages on this list, for example)
is about the person who SENT the message. It lets you verify that the
person who wrote the message is who you think they are, and that the
contents of the message itself have not been altered.
Encrypting is about the person RECEIVING the message. If you encrypt,
it makes it so the message cannot be read by anyone except for the
recipients you specified when encrypting it. (The sender is usually
added to the encrypted recipients automatically, in case he needs to
read his own sent message at a later date). Encryption is obviously in
very bad taste on a public mailing list. :)
So if you send a message that is both signed + encrypted, it will
verify the identity of the sender as well as restrict the ability to
read to only the people the sender wants.
You can also use PGP keys for authentication (with an OpenPGP
smartcard), and for signing files, which works just like signing
email.
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:41 ` Paul Hartman
@ 2012-01-19 23:01 ` Dale
0 siblings, 0 replies; 49+ messages in thread
From: Dale @ 2012-01-19 23:01 UTC (permalink / raw
To: gentoo-user
Paul Hartman wrote:
> There are basically 2 things PGP/GPG normally does for emails: signing
> and encrypting. They are not mutually exclusive.
>
> Signing (like you see on a lot of messages on this list, for example)
> is about the person who SENT the message. It lets you verify that the
> person who wrote the message is who you think they are, and that the
> contents of the message itself have not been altered.
>
> Encrypting is about the person RECEIVING the message. If you encrypt,
> it makes it so the message cannot be read by anyone except for the
> recipients you specified when encrypting it. (The sender is usually
> added to the encrypted recipients automatically, in case he needs to
> read his own sent message at a later date). Encryption is obviously in
> very bad taste on a public mailing list. :)
>
> So if you send a message that is both signed + encrypted, it will
> verify the identity of the sender as well as restrict the ability to
> read to only the people the sender wants.
>
> You can also use PGP keys for authentication (with an OpenPGP
> smartcard), and for signing files, which works just like signing
> email.
>
>
I think I get this now. When I sign the message, someone else opens it,
then it shows up that I signed it with the digital signature. Anyone
can read it tho. It's public as any normal email. Everyone just knows
it came from my rig is all.
When I encypt a message, only the person that I select the keys for can
open it. Example. I hit send and select your name in the little box
that pops up. Then only you can see the message but others on the list
can't since I only sent you the keys. Am I close?
I'm using Seamonkey by the way. When I hit send, I get a pop up window
that lists all the key thingys. I'm not sure how other clients do this.
I select which keys in that thing then it sends it.
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:04 ` Dale
2012-01-19 22:41 ` Paul Hartman
@ 2012-01-19 22:42 ` Alan McKinnon
2012-01-19 23:00 ` Neil Bothwick
` (2 more replies)
2012-01-19 22:44 ` Chris Walters
2012-01-19 22:46 ` Matthew Finkel
3 siblings, 3 replies; 49+ messages in thread
From: Alan McKinnon @ 2012-01-19 22:42 UTC (permalink / raw
To: gentoo-user
On Thu, 19 Jan 2012 16:04:11 -0600
Dale <rdalek1967@gmail.com> wrote:
> Chris Walters wrote:
> > On 1/19/2012 11:57 AM, Frank Steinmetzger wrote:
> >> On Thu, Jan 19, 2012 at 12:53:07AM -0600, Dale wrote:
> >>
> >>> While on this subject, sort of. Who on here as their email set
> >>> up to encrypt and decrypt emails? I want to test some things OFF
> >>> LIST.
> >>
> >> Well, if you had signed your mail, then I could write you
> >> encrypted. :)
> >
> > This is a test. Enigmail has been trying to use a revoked and
> > expired key to sign my messages, lately.
> >
> > Chris
> >
>
>
> I have a question now. I got a message from Paul Hartman and replied
> to it, off list, and it was encrypted and I hope my reply was too. My
> question is this. How do you make a email that only the sender and
> receiver can read? As a example. I'm talking to a Doctor or a lawyer
> and I don't want anyone but that person to see the email. How do I do
> that? Can that be done.
>
> The message that I am repying to appears to be something, encypted
> maybe, but I think anyone on this list that uses the tool can read it.
> Am I correct?
>
> I'm trying to get a full understanding of this thing. Ya'll know how
> I am. lol
Well we first need to be accurate. It's not a case that only you and
Paul can read the encrypted mail. It's a case that only a
machine holding the necessary private key can decrypt it, and then the
mail can be read in plain text. Not quite the same thing as what you
said, as private keys can be stolen.
If Paul encrypted the mail using your public key, then only the private
key you hold can decrypt it. Similarly, if you encrypt a mail to Paul
using his public key, then only Paul's private key can decrypt it.
There's no known way to decrypt a mail like that without the single
private key needed (this works exactly like https traffic to your
bank). I feel very confident saying "no known way" as cracking that
puzzle has been the Holy Grail of maths prizes for 40 years and no-one
has announced success. Seeing as mathematicians are a vain lot, and the
one that accomplishes this feat with be showered with honour and glory
for all time (making Einstein look like a child), it's a safe
assumption that it hasn't been done yet.
To check if the mail was encrypted, simply tell EnigMail to not decrypt
it. It will show as gobbledegook, then only the recipient can decrypt
it (as long as the private key stays safe).
To make this all work, you need to share public keys with each other.
But you don't need to do it in secret as the public keys are, well,
public. So you stick them on a key server where the other guy can
retrieve them and away you go, profit!!! There's a few other steps you
should do to establish trust in the public key (they can be forged) but
that's beyond the scope of explaining how the keys work.
The answer to your question is then yes.
I suppose next you'll be wanting to know what fields to fill in in your
specific mail app to enable it your end, right?
--
Alan McKinnnon
alan.mckinnon@gmail.com
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:42 ` Alan McKinnon
@ 2012-01-19 23:00 ` Neil Bothwick
2012-01-19 23:28 ` [gentoo-user] Public key cryptography... (Used to be: Something about SOPA and PIPA) Chris Walters
2012-01-19 23:07 ` [gentoo-user] S.O.P.A and P.I.P.A and the blackout Dale
2012-01-20 11:10 ` Tanstaafl
2 siblings, 1 reply; 49+ messages in thread
From: Neil Bothwick @ 2012-01-19 23:00 UTC (permalink / raw
To: gentoo-user
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On Fri, 20 Jan 2012 00:42:16 +0200, Alan McKinnon wrote:
> There's no known way to decrypt a mail like that without the single
> private key needed (this works exactly like https traffic to your
> bank). I feel very confident saying "no known way" as cracking that
> puzzle has been the Holy Grail of maths prizes for 40 years and no-one
> has announced success. Seeing as mathematicians are a vain lot, and the
> one that accomplishes this feat with be showered with honour and glory
> for all time (making Einstein look like a child), it's a safe
> assumption that it hasn't been done yet.
Unless he works for GCHQ/NSA or any other government's security services.
Remember, RSA was invented several years before R, S and A did so, by a
mathematician working at GCHQ (the UK's communication monitoring
department).
--
Neil Bothwick
Maybe... How much are you bribing me this time?
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^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Public key cryptography... (Used to be: Something about SOPA and PIPA)
2012-01-19 23:00 ` Neil Bothwick
@ 2012-01-19 23:28 ` Chris Walters
2012-01-20 0:27 ` Neil Bothwick
0 siblings, 1 reply; 49+ messages in thread
From: Chris Walters @ 2012-01-19 23:28 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 2234 bytes --]
On 1/19/2012 06:00 PM, Neil Bothwick wrote:
> On Fri, 20 Jan 2012 00:42:16 +0200, Alan McKinnon wrote:
>
>> There's no known way to decrypt a mail like that without the single
>> private key needed (this works exactly like https traffic to your
>> bank). I feel very confident saying "no known way" as cracking that
>> puzzle has been the Holy Grail of maths prizes for 40 years and no-one
>> has announced success. Seeing as mathematicians are a vain lot, and the
>> one that accomplishes this feat with be showered with honour and glory
>> for all time (making Einstein look like a child), it's a safe
>> assumption that it hasn't been done yet.
>
> Unless he works for GCHQ/NSA or any other government's security services.
>
> Remember, RSA was invented several years before R, S and A did so, by a
> mathematician working at GCHQ (the UK's communication monitoring
> department).
Possible, but not too likely*. RSA keys are based on two very large prime
numbers and their composite. The two primes are hundreds of digits in length,
and are used to generate the cipher (public) key, and the decipher (secret)
key. After which their composite is found and the two primes are discarded.
This type of public key cryptography is based on the difficulty of factoring
very large composites with only two very large prime factors, and is based in
number theory. It can be done, but it usually takes years using distributed
computer networks. It is possible that the NSA has found a magic formula to do
such factoring, but I find it more likely that the US Navy or the CIA would do
so first. Remember, the NSA exists to monitor communications for "suspicious"
activity and this is what most of their supercomputers are used for (sifting
many emails, web page interactions, telephone conversations, and the like).
While I am sure the NSA has its share of cryptologists, and cryptographers, I
would hazard to say that the Navy has more, and so probably does the CIA/MI5
(or is it MI6 now?).
*DISCLAIMER: With any public key cryptosystem, there is a risk that you will be
using keys that have already been cracked. If so, anyone who knows the crack
could decrypt your messages.
Chris
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^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Public key cryptography... (Used to be: Something about SOPA and PIPA)
2012-01-19 23:28 ` [gentoo-user] Public key cryptography... (Used to be: Something about SOPA and PIPA) Chris Walters
@ 2012-01-20 0:27 ` Neil Bothwick
2012-01-20 0:36 ` Chris Walters
0 siblings, 1 reply; 49+ messages in thread
From: Neil Bothwick @ 2012-01-20 0:27 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 1561 bytes --]
On Thu, 19 Jan 2012 18:28:04 -0500, Chris Walters wrote:
> >> I feel very confident saying "no known way" as cracking that
> >> puzzle has been the Holy Grail of maths prizes for 40 years and
> >> no-one has announced success. Seeing as mathematicians are a vain
> >> lot, and the one that accomplishes this feat with be showered with
> >> honour and glory for all time (making Einstein look like a child),
> >> it's a safe assumption that it hasn't been done yet.
> >
> > Unless he works for GCHQ/NSA or any other government's security
> > services.
> Possible, but not too likely*. RSA keys are based on two very large
> prime numbers and their composite. The two primes are hundreds of
> digits in length, and are used to generate the cipher (public) key, and
> the decipher (secret) key. After which their composite is found and
> the two primes are discarded.
I know it is extremely unlikely that anyone could crack it. My point was
that if someone did crack it, they would not necessarily shout about it.
If they worked for the security services, that would not want others to
know their encryption was insecure. Britain was selling Enigma machines
to their "friends" for decades after it was broken.
> While I am sure the NSA has its share of cryptologists, and
> cryptographers, I would hazard to say that the Navy has more, and so
> probably does the CIA/MI5 (or is it MI6 now?).
GCHQ, as mentioned above :)
--
Neil Bothwick
I am Zaphod of Borg. Now, where's the coolest place to be assimilated...
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^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Public key cryptography... (Used to be: Something about SOPA and PIPA)
2012-01-20 0:27 ` Neil Bothwick
@ 2012-01-20 0:36 ` Chris Walters
2012-01-20 1:34 ` Neil Bothwick
0 siblings, 1 reply; 49+ messages in thread
From: Chris Walters @ 2012-01-20 0:36 UTC (permalink / raw
To: gentoo-user
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
On 1/19/2012 07:27 PM, Neil Bothwick wrote:
> On Thu, 19 Jan 2012 18:28:04 -0500, Chris Walters wrote:
>> Possible, but not too likely*. RSA keys are based on two very large
>> prime numbers and their composite. The two primes are hundreds of
>> digits in length, and are used to generate the cipher (public) key, and
>> the decipher (secret) key. After which their composite is found and
>> the two primes are discarded.
>
> I know it is extremely unlikely that anyone could crack it. My point was
> that if someone did crack it, they would not necessarily shout about it.
> If they worked for the security services, that would not want others to
> know their encryption was insecure. Britain was selling Enigma machines
> to their "friends" for decades after it was broken.
That is very true. In fact, they'd likely do just what you brought up about
Britain selling Enigma machines to their "friends" after it was broken. That
is that would likely promote the cipher(s) they know how to crack and dismiss
the ones they don't as being "not secure".
>> probably does the CIA/MI5 (or is it MI6 now?).
>
> GCHQ, as mentioned above :)
GCHQ, eh? What does that stand for, or is that a State secret? Like the NSA =
"No Such Agency"...
Chris
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---
avast! Antivirus: Outbound message clean.
Virus Database (VPS): 120119-1, 01/19/2012
Tested on: 1/19/2012 7:36:59 PM
avast! - copyright (c) 1988-2012 AVAST Software.
http://www.avast.com
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Public key cryptography... (Used to be: Something about SOPA and PIPA)
2012-01-20 0:36 ` Chris Walters
@ 2012-01-20 1:34 ` Neil Bothwick
0 siblings, 0 replies; 49+ messages in thread
From: Neil Bothwick @ 2012-01-20 1:34 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 489 bytes --]
On Thu, 19 Jan 2012 19:36:56 -0500, Chris Walters wrote:
> > GCHQ, as mentioned above :)
>
> GCHQ, eh? What does that stand for, or is that a State secret? Like
> the NSA = "No Such Agency"...
Going back to the start of this thread, Wikipedia's back on so you can
look it up :P
It's Government Communications Headquarters. It grew out of Bletchley
Park, where the Enigmas were cracked in WWII.
--
Neil Bothwick
Top Oxymorons Number 5: Twelve-ounce pound cake
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^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:42 ` Alan McKinnon
2012-01-19 23:00 ` Neil Bothwick
@ 2012-01-19 23:07 ` Dale
2012-01-20 11:10 ` Tanstaafl
2 siblings, 0 replies; 49+ messages in thread
From: Dale @ 2012-01-19 23:07 UTC (permalink / raw
To: gentoo-user
Alan McKinnon wrote:
> On Thu, 19 Jan 2012 16:04:11 -0600 Dale <rdalek1967@gmail.com>
> wrote:
>
>> Chris Walters wrote:
>>> On 1/19/2012 11:57 AM, Frank Steinmetzger wrote:
>>>> On Thu, Jan 19, 2012 at 12:53:07AM -0600, Dale wrote:
>>>>
>>>>> While on this subject, sort of. Who on here as their email
>>>>> set up to encrypt and decrypt emails? I want to test some
>>>>> things OFF LIST.
>>>>
>>>> Well, if you had signed your mail, then I could write you
>>>> encrypted. :)
>>>
>>> This is a test. Enigmail has been trying to use a revoked and
>>> expired key to sign my messages, lately.
>>>
>>> Chris
>>>
>>
>>
>> I have a question now. I got a message from Paul Hartman and
>> replied to it, off list, and it was encrypted and I hope my reply
>> was too. My question is this. How do you make a email that only
>> the sender and receiver can read? As a example. I'm talking to
>> a Doctor or a lawyer and I don't want anyone but that person to
>> see the email. How do I do that? Can that be done.
>>
>> The message that I am repying to appears to be something,
>> encypted maybe, but I think anyone on this list that uses the
>> tool can read it. Am I correct?
>>
>> I'm trying to get a full understanding of this thing. Ya'll know
>> how I am. lol
>
> Well we first need to be accurate. It's not a case that only you
> and Paul can read the encrypted mail. It's a case that only a
> machine holding the necessary private key can decrypt it, and then
> the mail can be read in plain text. Not quite the same thing as
> what you said, as private keys can be stolen.
>
> If Paul encrypted the mail using your public key, then only the
> private key you hold can decrypt it. Similarly, if you encrypt a
> mail to Paul using his public key, then only Paul's private key can
> decrypt it.
>
> There's no known way to decrypt a mail like that without the
> single private key needed (this works exactly like https traffic to
> your bank). I feel very confident saying "no known way" as cracking
> that puzzle has been the Holy Grail of maths prizes for 40 years
> and no-one has announced success. Seeing as mathematicians are a
> vain lot, and the one that accomplishes this feat with be showered
> with honour and glory for all time (making Einstein look like a
> child), it's a safe assumption that it hasn't been done yet.
>
> To check if the mail was encrypted, simply tell EnigMail to not
> decrypt it. It will show as gobbledegook, then only the recipient
> can decrypt it (as long as the private key stays safe).
>
> To make this all work, you need to share public keys with each
> other. But you don't need to do it in secret as the public keys
> are, well, public. So you stick them on a key server where the
> other guy can retrieve them and away you go, profit!!! There's a
> few other steps you should do to establish trust in the public key
> (they can be forged) but that's beyond the scope of explaining how
> the keys work.
>
> The answer to your question is then yes.
>
> I suppose next you'll be wanting to know what fields to fill in in
> your specific mail app to enable it your end, right?
>
>
>
>
I don't think so. I been chatting with Paul off list. I can open his
encypted emails and he can open mine. I think we call that success?
I think I got this now. I got one more message to read tho. Getting
it explained in more than one way helps me. I have to have that light
bulb moment. ;-)
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood
or how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:42 ` Alan McKinnon
2012-01-19 23:00 ` Neil Bothwick
2012-01-19 23:07 ` [gentoo-user] S.O.P.A and P.I.P.A and the blackout Dale
@ 2012-01-20 11:10 ` Tanstaafl
2 siblings, 0 replies; 49+ messages in thread
From: Tanstaafl @ 2012-01-20 11:10 UTC (permalink / raw
To: gentoo-user
On 2012-01-19 5:42 PM, Alan McKinnon <alan.mckinnon@gmail.com> wrote:
> There's no known way to decrypt a mail like that without the single
> private key needed (this works exactly like https traffic to your
> bank). I feel very confident saying "no known way" as cracking that
> puzzle has been the Holy Grail of maths prizes for 40 years and no-one
> has announced success. Seeing as mathematicians are a vain lot, and the
> one that accomplishes this feat with be showered with honour and glory
> for all time (making Einstein look like a child), it's a safe
> assumption that it hasn't been done yet.
Heh - yeah, *loved* the movie 'Sneakers'...
Setec Astronomy == Too Many Secrets
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:04 ` Dale
2012-01-19 22:41 ` Paul Hartman
2012-01-19 22:42 ` Alan McKinnon
@ 2012-01-19 22:44 ` Chris Walters
2012-01-19 23:04 ` Mick
2012-01-19 23:20 ` Dale
2012-01-19 22:46 ` Matthew Finkel
3 siblings, 2 replies; 49+ messages in thread
From: Chris Walters @ 2012-01-19 22:44 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 2385 bytes --]
On 1/19/2012 05:04 PM, Dale wrote:
> Chris Walters wrote:
>>
>> This is a test. Enigmail has been trying to use a revoked and expired key to
>> sign my messages, lately.
>>
>> Chris
>>
>
>
> I have a question now. I got a message from Paul Hartman and replied to
> it, off list, and it was encrypted and I hope my reply was too. My
> question is this. How do you make a email that only the sender and
> receiver can read? As a example. I'm talking to a Doctor or a lawyer
> and I don't want anyone but that person to see the email. How do I do
> that? Can that be done.
Yes, see below. It looks like you are using a web interface (Firefox) to send
and reply to messages. I would suggest emerging Thunderbird
(emerge -av thunderbird). There is an add on called Enigmail for this mail
client that makes encrypting, signing and decrypting messages, much easier.
You need gnupg, as well.
> The message that I am repying to appears to be something, encypted
> maybe, but I think anyone on this list that uses the tool can read it.
> Am I correct?
If the message is encrypted to them, then yes. If not, no. You need a secret
key to decrypt a message that is encrypted, and if anyone seeing it is not on
the list of recipients, they will not have that key.
> I'm trying to get a full understanding of this thing. Ya'll know how I
> am. lol
With OpenPGP or PGP/MIME, you would have to share your public key with the
other party - this would allow that party to encrypt messages to you. You
would also have to have the public key of the other party to encrypt to them.
For example, if you wanted to encrypt to me, you'd have to retrieve my public
key from a keyserver or I'd have to send it to you. You would have to either
sign a message (and have uploaded your public key to a keyserver), or send me
your public key.
You could then encrypt a message to me, and you could add yourself to the
recipient list so you could read it. Then, when I received the message, I
would be prompted for my secret key's passphrase - this would allow decryption
of the message. Providing that I replied to you and chose the "encrypt"
option, the entire message, including any quotes would be encrypted.
Hope this helps,
Chris
--
Multibooting: wearing two socks of different colors and types, with two
different boots... ;)
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 801 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:44 ` Chris Walters
@ 2012-01-19 23:04 ` Mick
2012-01-19 23:20 ` Dale
1 sibling, 0 replies; 49+ messages in thread
From: Mick @ 2012-01-19 23:04 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: Text/Plain, Size: 952 bytes --]
On Thursday 19 Jan 2012 22:44:12 Chris Walters wrote:
> On 1/19/2012 05:04 PM, Dale wrote:
> > I have a question now. I got a message from Paul Hartman and replied to
> > it, off list, and it was encrypted and I hope my reply was too. My
> > question is this. How do you make a email that only the sender and
> > receiver can read? As a example. I'm talking to a Doctor or a lawyer
> > and I don't want anyone but that person to see the email. How do I do
> > that? Can that be done.
>
> Yes, see below. It looks like you are using a web interface (Firefox) to
> send and reply to messages. I would suggest emerging Thunderbird
> (emerge -av thunderbird). There is an add on called Enigmail for this mail
> client that makes encrypting, signing and decrypting messages, much easier.
> You need gnupg, as well.
There are plugins for FF that can use S/MIME and I believe GnuPG/PGP to
encrypt gmail.
--
Regards,
Mick
[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 198 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:44 ` Chris Walters
2012-01-19 23:04 ` Mick
@ 2012-01-19 23:20 ` Dale
2012-01-19 23:32 ` Matthew Finkel
2012-01-20 0:05 ` Mick
1 sibling, 2 replies; 49+ messages in thread
From: Dale @ 2012-01-19 23:20 UTC (permalink / raw
To: gentoo-user
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Chris Walters wrote:
> On 1/19/2012 05:04 PM, Dale wrote:
>> Chris Walters wrote:
>>>
>>> This is a test. Enigmail has been trying to use a revoked and
>>> expired key to sign my messages, lately.
>>>
>>> Chris
>>>
>>
>>
>> I have a question now. I got a message from Paul Hartman and
>> replied to it, off list, and it was encrypted and I hope my reply
>> was too. My question is this. How do you make a email that only
>> the sender and receiver can read? As a example. I'm talking to
>> a Doctor or a lawyer and I don't want anyone but that person to
>> see the email. How do I do that? Can that be done.
>
> Yes, see below. It looks like you are using a web interface
> (Firefox) to send and reply to messages. I would suggest emerging
> Thunderbird (emerge -av thunderbird). There is an add on called
> Enigmail for this mail client that makes encrypting, signing and
> decrypting messages, much easier. You need gnupg, as well.
>
Close. Sort of. I actually use Seamonkey as my emailly program.
>> The message that I am repying to appears to be something,
>> encypted maybe, but I think anyone on this list that uses the
>> tool can read it. Am I correct?
>
> If the message is encrypted to them, then yes. If not, no. You
> need a secret key to decrypt a message that is encrypted, and if
> anyone seeing it is not on the list of recipients, they will not
> have that key.
>
I'm starting to see this now. When I sign a message, it is public but
people are assured that it came from me. Sort of like having a check
with a picture ID that matches. :/
>> I'm trying to get a full understanding of this thing. Ya'll know
>> how I am. lol
>
> With OpenPGP or PGP/MIME, you would have to share your public key
> with the other party - this would allow that party to encrypt
> messages to you. You would also have to have the public key of the
> other party to encrypt to them.
>
> For example, if you wanted to encrypt to me, you'd have to retrieve
> my public key from a keyserver or I'd have to send it to you. You
> would have to either sign a message (and have uploaded your public
> key to a keyserver), or send me your public key.
>
> You could then encrypt a message to me, and you could add yourself
> to the recipient list so you could read it. Then, when I received
> the message, I would be prompted for my secret key's passphrase -
> this would allow decryption of the message. Providing that I
> replied to you and chose the "encrypt" option, the entire message,
> including any quotes would be encrypted.
>
> Hope this helps, Chris
>
> -- Multibooting: wearing two socks of different colors and types,
> with two different boots... ;)
>
So, this is why when I want to sign a message it asks me for the
password. I thought it was trying to do something wrong. Made me
scratch my head.
Mud is clearing up a bit.
Dale
:-) :-)
- --
I am only responsible for what I said ... Not for what you understood
or how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.17 (GNU/Linux)
Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
iEYEARECAAYFAk8YpUwACgkQiBoxVpK2GMCz4QCeNBRDf8wmErruB5SVREcra4uu
6dQAnRnR8OuS0Mo5jcBnLNRGug0hkhK/
=XWWa
-----END PGP SIGNATURE-----
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 23:20 ` Dale
@ 2012-01-19 23:32 ` Matthew Finkel
2012-01-19 23:55 ` Dale
2012-01-20 0:05 ` Mick
1 sibling, 1 reply; 49+ messages in thread
From: Matthew Finkel @ 2012-01-19 23:32 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 680 bytes --]
On Thu, Jan 19, 2012 at 6:20 PM, Dale <rdalek1967@gmail.com> wrote:
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
>
> Mud is clearing up a bit.
>
Excellent! Lookin good!
>
> Dale
>
> :-) :-)
>
> - --
> I am only responsible for what I said ... Not for what you understood
> or how you interpreted my words!
>
> Miss the compile output? Hint:
> EMERGE_DEFAULT_OPTS="--quiet-build=n"
> -----BEGIN PGP SIGNATURE-----
> Version: GnuPG v2.0.17 (GNU/Linux)
> Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/
>
> iEYEARECAAYFAk8YpUwACgkQiBoxVpK2GMCz4QCeNBRDf8wmErruB5SVREcra4uu
> 6dQAnRnR8OuS0Mo5jcBnLNRGug0hkhK/
> =XWWa
> -----END PGP SIGNATURE-----
>
>
- Matt
[-- Attachment #2: Type: text/html, Size: 1256 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 23:32 ` Matthew Finkel
@ 2012-01-19 23:55 ` Dale
2012-01-20 0:01 ` [gentoo-user] Please change this subject line Chris Walters
2012-01-20 1:10 ` [gentoo-user] S.O.P.A and P.I.P.A and the blackout Matthew Finkel
0 siblings, 2 replies; 49+ messages in thread
From: Dale @ 2012-01-19 23:55 UTC (permalink / raw
To: gentoo-user
Matthew Finkel wrote:
>
>
> On Thu, Jan 19, 2012 at 6:20 PM, Dale <rdalek1967@gmail.com
> <mailto:rdalek1967@gmail.com>> wrote:
>
> Mud is clearing up a bit.
>
>
>> Excellent! Lookin good!
>
>
Well, I get this on top of your message:
Error - No valid armored OpenPGP data block found
What's wrong with that? Yours or mine?
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Please change this subject line.
2012-01-19 23:55 ` Dale
@ 2012-01-20 0:01 ` Chris Walters
2012-01-20 1:26 ` Dale
2012-01-20 1:10 ` [gentoo-user] S.O.P.A and P.I.P.A and the blackout Matthew Finkel
1 sibling, 1 reply; 49+ messages in thread
From: Chris Walters @ 2012-01-20 0:01 UTC (permalink / raw
To: gentoo-user
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
On 1/19/2012 06:55 PM, Dale wrote:
> Matthew Finkel wrote:
>>
>>
>> On Thu, Jan 19, 2012 at 6:20 PM, Dale <rdalek1967@gmail.com
>> <mailto:rdalek1967@gmail.com>> wrote:
>>
>> Mud is clearing up a bit.
>>
>>
>>> Excellent! Lookin good!
When he quoted your message, he included part of your PGP signature in the
quoted part. That's what caused that error.
Chris
-----BEGIN PGP SIGNATURE-----
iQIcBAEBCgAGBQJPGK7kAAoJEFHj8CHvnA9Y5EMQAJmc4DQxw4rC4kjZ3e1DiG4I
0Agq00Heb3GtaYebPfe8TsQmEBhfLloq0iO5L4j+szkxRJPR/YrmpgoVoz6wuTHz
zzScHW2VAzhtOL+UOnvDgkz9lfdplRudsg3muLfv1K6Ppq+0az5fbxYNSXI668+6
JzA5smYKBAS/wJh2N/9nrjXLJYRnR8mc5OFjkUVtKdJHUbKi3pT4SKhcPt/zNi91
Y/LD9ljmDxftP5CKtR5KHMUQ9NPUjNNuIiT7HlhsTKfqZPvzUUUGbjmfIhsyO/53
vEceioQBvfioooV+qr1SARV7x0oam0CFrphv+UKnzDzpOo3geuDuh0E0BEao1jvQ
P2O7g7b67+MD1AV3AUoQ8ekytiFXMKX5zKYuCWwqH6BckaXoVGtQ0Zphrwz1mWOt
5Fd1h07mOQwXFSnElypXvClV6ZJ5D8zXvzTHtSlBi+UN3M/IEZjcFfACR/cESgvk
0YH3FPLX0Fv3ZqsnNFWMy0o1V19QspNOT+cKGj0FjLY6BBo3yXU4buNcWC3beSwU
kPA7lS91ku2MbuJZkV+4sTr0YITtAZ62HVoDl7G3LYXsczseMZmbUmKgRtxs1V0N
pFTojemOpV4BYDJ4GMrFvxBJFA/D3gPu7XbdMcYAkf6zc467c71PttYkYZ3PKyPq
xlzFPWLrQUBWxo0k/MlF
=Oi7J
-----END PGP SIGNATURE-----
---
avast! Antivirus: Outbound message clean.
Virus Database (VPS): 120119-1, 01/19/2012
Tested on: 1/19/2012 7:01:42 PM
avast! - copyright (c) 1988-2012 AVAST Software.
http://www.avast.com
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Please change this subject line.
2012-01-20 0:01 ` [gentoo-user] Please change this subject line Chris Walters
@ 2012-01-20 1:26 ` Dale
2012-01-20 5:17 ` Chris Walters
0 siblings, 1 reply; 49+ messages in thread
From: Dale @ 2012-01-20 1:26 UTC (permalink / raw
To: gentoo-user
Chris Walters wrote:
> On 1/19/2012 06:55 PM, Dale wrote:
>> Matthew Finkel wrote:
>>>
>>>
>>> On Thu, Jan 19, 2012 at 6:20 PM, Dale <rdalek1967@gmail.com
>>> <mailto:rdalek1967@gmail.com>> wrote:
>>>
>>> Mud is clearing up a bit.
>>>
>>>
>>>> Excellent! Lookin good!
>
> When he quoted your message, he included part of your PGP signature
> in the quoted part. That's what caused that error.
>
> Chris
>
>
Ohhh, great, something is to make sure to fix when quoting. O_O
You live in the USA? If yes, mind a off list question?
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] Please change this subject line.
2012-01-20 1:26 ` Dale
@ 2012-01-20 5:17 ` Chris Walters
0 siblings, 0 replies; 49+ messages in thread
From: Chris Walters @ 2012-01-20 5:17 UTC (permalink / raw
To: gentoo-user
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
On 1/19/2012 08:26 PM, Dale wrote:
> Ohhh, great, something is to make sure to fix when quoting. O_O
>
> You live in the USA? If yes, mind a off list question?
>
> Dale
>
> :-) :-)
Yes I do live in the USA, and no I don't mind an off-list question.
Chris
-----BEGIN PGP SIGNATURE-----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=KMDt
-----END PGP SIGNATURE-----
---
avast! Antivirus: Outbound message clean.
Virus Database (VPS): 120119-2, 01/19/2012
Tested on: 1/20/2012 12:17:39 AM
avast! - copyright (c) 1988-2012 AVAST Software.
http://www.avast.com
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 23:55 ` Dale
2012-01-20 0:01 ` [gentoo-user] Please change this subject line Chris Walters
@ 2012-01-20 1:10 ` Matthew Finkel
1 sibling, 0 replies; 49+ messages in thread
From: Matthew Finkel @ 2012-01-20 1:10 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: text/plain, Size: 628 bytes --]
On Thu, Jan 19, 2012 at 6:55 PM, Dale <rdalek1967@gmail.com> wrote:
> Matthew Finkel wrote:
> >
> >
> > On Thu, Jan 19, 2012 at 6:20 PM, Dale <rdalek1967@gmail.com
> > <mailto:rdalek1967@gmail.com>> wrote:
> >
> > Mud is clearing up a bit.
> >
> >
> >> Excellent! Lookin good!
> >
> >
>
> Well, I get this on top of your message:
>
> Error - No valid armored OpenPGP data block found
>
> What's wrong with that? Yours or mine?
>
> Dale
>
> :-) :-)
I'm using gmail right now, so my messages aren't signed. As such, I would
have to say neither. =)
I may be wrong and there actually is something amiss, anything is possible.
[-- Attachment #2: Type: text/html, Size: 1218 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 23:20 ` Dale
2012-01-19 23:32 ` Matthew Finkel
@ 2012-01-20 0:05 ` Mick
2012-01-20 1:31 ` Dale
1 sibling, 1 reply; 49+ messages in thread
From: Mick @ 2012-01-20 0:05 UTC (permalink / raw
To: gentoo-user
[-- Attachment #1: Type: Text/Plain, Size: 2256 bytes --]
On Thursday 19 Jan 2012 23:20:44 Dale wrote:
> Chris Walters wrote:
> I'm starting to see this now. When I sign a message, it is public but
> people are assured that it came from me. Sort of like having a check
> with a picture ID that matches. :/
Better than that.
Readers (all that have access to this list) can a)see that you have signed it
and b)rest assured that no one has tampered with its content since you signed.
If anyone intercepted the message mid-air and changed its content, your
signature would show as bad in the recipients mail client (assuming they have
a GnuPG/PGP compatible client).
BTW, your signature is not showing in Kmail ... are you using inline or
opengpg/smime format?
> > You could then encrypt a message to me, and you could add yourself
> > to the recipient list so you could read it. Then, when I received
> > the message, I would be prompted for my secret key's passphrase -
> > this would allow decryption of the message. Providing that I
> > replied to you and chose the "encrypt" option, the entire message,
> > including any quotes would be encrypted.
> >
> > Hope this helps, Chris
> So, this is why when I want to sign a message it asks me for the
> password. I thought it was trying to do something wrong. Made me
> scratch my head.
To avoid an easy misunderstanding about what the "password" does:
You are asked for a passphrase not because Chris used that passphrase to
encrypt the message he sent you with (that would have been symmetric
encryption and both of you would need to know in advance the secret
passphrase). Instead, you are asked for a passphrase to decrypt your own
private gpg key which is stored in encrypted format on your hard drive for
security purposes. The private key once decrypted and loaded in memory will
be used by your openpgp application to decrypt the message sent by Chris.
This is asymmetric encryption: a sender can use your public key and their
private key to encrypt a message to you, which only you can decrypt with your
private key and the sender's public key. Look at the picture on the right in
this page:
http://en.wikipedia.org/wiki/Public-key_cryptography
HTH
--
Regards,
Mick
[-- Attachment #2: This is a digitally signed message part. --]
[-- Type: application/pgp-signature, Size: 198 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-20 0:05 ` Mick
@ 2012-01-20 1:31 ` Dale
2012-01-20 3:28 ` Paul Hartman
0 siblings, 1 reply; 49+ messages in thread
From: Dale @ 2012-01-20 1:31 UTC (permalink / raw
To: gentoo-user
Mick wrote:
> On Thursday 19 Jan 2012 23:20:44 Dale wrote:
>> Chris Walters wrote:
>
>> I'm starting to see this now. When I sign a message, it is public but
>> people are assured that it came from me. Sort of like having a check
>> with a picture ID that matches. :/
>
> Better than that.
>
> Readers (all that have access to this list) can a)see that you have signed it
> and b)rest assured that no one has tampered with its content since you signed.
> If anyone intercepted the message mid-air and changed its content, your
> signature would show as bad in the recipients mail client (assuming they have
> a GnuPG/PGP compatible client).
>
> BTW, your signature is not showing in Kmail ... are you using inline or
> opengpg/smime format?
>
>
I don't have mine set up to sign them all. I did a couple to see if it
worked or not. Whenever I sign a message, it asks for the password. It
is quite a long password and I don't want to type it in every time I
send something.
>>> You could then encrypt a message to me, and you could add yourself
>>> to the recipient list so you could read it. Then, when I received
>>> the message, I would be prompted for my secret key's passphrase -
>>> this would allow decryption of the message. Providing that I
>>> replied to you and chose the "encrypt" option, the entire message,
>>> including any quotes would be encrypted.
>>>
>>> Hope this helps, Chris
>
>> So, this is why when I want to sign a message it asks me for the
>> password. I thought it was trying to do something wrong. Made me
>> scratch my head.
>
> To avoid an easy misunderstanding about what the "password" does:
>
> You are asked for a passphrase not because Chris used that passphrase to
> encrypt the message he sent you with (that would have been symmetric
> encryption and both of you would need to know in advance the secret
> passphrase). Instead, you are asked for a passphrase to decrypt your own
> private gpg key which is stored in encrypted format on your hard drive for
> security purposes. The private key once decrypted and loaded in memory will
> be used by your openpgp application to decrypt the message sent by Chris.
>
> This is asymmetric encryption: a sender can use your public key and their
> private key to encrypt a message to you, which only you can decrypt with your
> private key and the sender's public key. Look at the picture on the right in
> this page:
>
> http://en.wikipedia.org/wiki/Public-key_cryptography
>
> HTH
The password I was talking about is the one when I send a message. It
does ask for the password when Paul was sending a message. Those were
off list tho. Anyway, when I put the password in, I can read the email.
Otherwise, I can't read anything.
How sure are we that there is no back door the Government has to bypass
this? Are we 99% sure or about 50/50 with our fingers crossed?
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-20 1:31 ` Dale
@ 2012-01-20 3:28 ` Paul Hartman
2012-01-20 9:04 ` Dale
0 siblings, 1 reply; 49+ messages in thread
From: Paul Hartman @ 2012-01-20 3:28 UTC (permalink / raw
To: gentoo-user@lists.gentoo.org
[-- Attachment #1: Type: text/plain, Size: 524 bytes --]
On Thursday, January 19, 2012, Dale <rdalek1967@gmail.com> wrote:
> I don't have mine set up to sign them all. I did a couple to see if it
> worked or not. Whenever I sign a message, it asks for the password. It
> is quite a long password and I don't want to type it in every time I
> send something.
If you use gpg-agent (and configure Enigmail to use it), it will remember
that you already entered your passphrase for some amount of time, so you
don't need to keep reentering it over and over during the same session.
[-- Attachment #2: Type: text/html, Size: 618 bytes --]
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-20 3:28 ` Paul Hartman
@ 2012-01-20 9:04 ` Dale
0 siblings, 0 replies; 49+ messages in thread
From: Dale @ 2012-01-20 9:04 UTC (permalink / raw
To: gentoo-user
Paul Hartman wrote:
> On Thursday, January 19, 2012, Dale <rdalek1967@gmail.com
> <mailto:rdalek1967@gmail.com>> wrote:
>> I don't have mine set up to sign them all. I did a couple to see if it
>> worked or not. Whenever I sign a message, it asks for the password. It
>> is quite a long password and I don't want to type it in every time I
>> send something.
>
> If you use gpg-agent (and configure Enigmail to use it), it will
> remember that you already entered your passphrase for some amount of
> time, so you don't need to keep reentering it over and over during the
> same session.
Well, I dug around and found a time out setting. It is set to 5
minutes. At least I know I can change it or get er done in 5 minutes or
less.
Oooops. "get er done" may violate SOPA. Am I going to jail? ROFL
Dale
:-) :-)
--
I am only responsible for what I said ... Not for what you understood or
how you interpreted my words!
Miss the compile output? Hint:
EMERGE_DEFAULT_OPTS="--quiet-build=n"
^ permalink raw reply [flat|nested] 49+ messages in thread
* Re: [gentoo-user] S.O.P.A and P.I.P.A and the blackout.
2012-01-19 22:04 ` Dale
` (2 preceding siblings ...)
2012-01-19 22:44 ` Chris Walters
@ 2012-01-19 22:46 ` Matthew Finkel
3 siblings, 0 replies; 49+ messages in thread
From: Matthew Finkel @ 2012-01-19 22:46 UTC (permalink / raw
To: gentoo-user
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On Thu, Jan 19, 2012 at 5:04 PM, Dale <rdalek1967@gmail.com> wrote:
> Chris Walters wrote:
> > This is a test. Enigmail has been trying to use a revoked and expired
> key to
> > sign my messages, lately.
> >
> > Chris
> >
> I have a question now. I got a message from Paul Hartman and replied to
> it, off list, and it was encrypted and I hope my reply was too. My
> question is this. How do you make a email that only the sender and
> receiver can read? As a example. I'm talking to a Doctor or a lawyer
> and I don't want anyone but that person to see the email. How do I do
> that? Can that be done.
Yes, this occurs when the messages are actually encrypted. Both the sender
and receiver must generate a public and private key. The public key
is...public. Anyone and everyone can use it to encipher a message. However,
the private key should be..well, private. It is the key that
can decipher the message. Assuming the receiver keeps this key secret, all
messages that are encrypted with the public key will only be read by
him/her.
>
The message that I am repying to appears to be something, encypted
> maybe, but I think anyone on this list that uses the tool can read it.
> Am I correct?
>
I'm using gmail right now, so I can't verify, but the message was most
likely signed but not encrypted. By signing the message, Chris verified
that he actually sent it and it wasn't someone impersonating. (This all
hinges on the fact that you previously received his signature and trust
that it was authentic then)
> I'm trying to get a full understanding of this thing. Ya'll know how I
> am. lol
>
> Dale
>
> :-) :-)
>
>
Matt
--
Matthew Finkel
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