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May
19
comment Encrypting a file so that it can be decrypted everywhere out of the box
@mikeazo: "restricted access": the access you would typically get in an Internet cafe or a library computer, even if it has a whitelist I guess.
May
18
awarded  Editor
May
18
comment Encrypting a file so that it can be decrypted everywhere out of the box
@SOJPM: Windows and OS X cannot open TrueCrypt and 7z files out of the box, unlike zip files.
May
18
revised Encrypting a file so that it can be decrypted everywhere out of the box
This is not a software recommendation question, I'm asking for a method that already works everywhere without installing software
May
18
comment Encrypting a file so that it can be decrypted everywhere out of the box
@SOJPM: Sorry, how is this opinion based? There can be objective answers to this question. I've edited the question to make it clear that I'm not asking for a software recommendation.
May
16
asked Encrypting a file so that it can be decrypted everywhere out of the box
May
16
awarded  Informed
Mar
16
awarded  Famous Question
Nov
3
awarded  Good Answer
Apr
4
awarded  Nice Question
Jan
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Jan
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Sep
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Aug
23
awarded  Nice Answer
Dec
13
accepted What are the differences between a digital signature, a MAC and a hash?
Dec
12
comment Can I use PGP to sign a message without providing cryptographic non-repudation?
If the sender uses a one-time signing key, how would this provide authentication at all? How would the recipient know that the one-time signing key is associated with the sender's validated master signing key?
Dec
12
comment Can I use PGP to sign a message without providing cryptographic non-repudation?
If understand correctly, an MDC provides some level of integrity, but not authentication. After all, even with an MDC, an attacker could just use the recipient's public key to create a new encrypted message. What I'm asking for is authentication without non-repudiation. I realise the non-repudiation OpenPGP offers isn't good enough for court, but it could be good enough for another OpenPGP user.
Dec
12
awarded  Critic
Dec
11
awarded  Self-Learner
Dec
10
comment What are the differences between a digital signature, a MAC and a hash?
@PaĆ­loEbermann: that's perfect, thanks! Your edit was substantial so I enabled "community wiki" on my answer, it's only fair.