ietf-openpgp
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Re: 10.2 grammar (naked encrypted packets?)

1998-03-29 15:32:22
Noting the grammar says:

OP Message :- Encrypted Message

Encrypted Message :- Symmetrically Encrypted Data Packet

So, a SEDP without any info how to decrypt it is a valid OP message?

Yes, that's the format PGP 2.X uses for a conventionally encrypted
message.  If there are no ESKs the SEDP is assumed to be encrypted with
IDEA, using the Simple rules to convert passphrase to key (i.e. hash
the passphrase with MD5).

Hal

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