The Call of the Open Sidewalk

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pgpfan:tpp

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pgpfan:tpp [2022/05/29 00:35]
b.walzer I implicitly agreed with a incorrect statement. I need to fix that.
pgpfan:tpp [2022/06/06 19:02] (current)
b.walzer Clearer wording.
Line 103: Line 103:
 >The PGP MDC can be stripped off messages –– it was encoded in such a way that you can simply chop off the last 22 bytes of the ciphertext to do that. >The PGP MDC can be stripped off messages –– it was encoded in such a way that you can simply chop off the last 22 bytes of the ciphertext to do that.
  
-Well, sure, you could do that. An implementation would probably end with some sort of end of file/message error. You obviously wouldn't end up with a valid MDC check.+Well, sure, you could do that. An implementation would probably just stop with some sort of end of file/message/packet error. You obviously wouldn't end up with a valid MDC check so this is an odd thing to suggest.
  
 >To retain backwards compatibility with insecure older messages, PGP introduced a new packet type to signal that the MDC needs to be validated; if you use the wrong type, the MDC doesn’t get checked. >To retain backwards compatibility with insecure older messages, PGP introduced a new packet type to signal that the MDC needs to be validated; if you use the wrong type, the MDC doesn’t get checked.
pgpfan/tpp.txt · Last modified: 2022/06/06 19:02 by b.walzer