19970918 
paulson 
19970918 
Global change: lost>bad and sees Spy>spies
First change just gives a more sensible name.
Second change eliminates the agent parameter of "sees" to simplify
definitions and theorems

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19970917 
paulson 
19970917 
Fixed comments

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19970916 
paulson 
19970916 
Deleted the redundant simprule not_parts_not_analz

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19970722 
paulson 
19970722 
Cosmetic changes: margins, indentation, ...

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19970714 
paulson 
19970714 
Changing "lost" from a parameter of protocol definitions to a constant.
Advantages: no "lost" argument everywhere; fewer Vars in subgoals;
less need for specially instantiated rules
Disadvantage: can no longer prove "Agent_not_see_encrypted_key", but this
theorem was never used, and its original proof was also broken
the introduction of the "Notes" constructor.

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19970711 
paulson 
19970711 
Removal of monotonicity reasoning involving "lost" and the theorem
Agent_not_see_encrypted_key, which (a) is never used and (b) becomes harder
to prove when Notes is available.

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19970704 
paulson 
19970704 
Changed some variables of type msg to lower case (e.g. from NB to nb

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19970627 
paulson 
19970627 
Corrected indentations and margins after the renaming of "set_of_list"

file  diff  annotate 
19970626 
nipkow 
19970626 
set_of_list > set

file  diff  annotate 
19970626 
paulson 
19970626 
Trivial changes in connection with the Yahalom paper.
Changed the order of the premises in no_nonce_YM1_YM2.
Installed B_trusts_YM4_newK using bind_thm.
Improved some comments.

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19970619 
paulson 
19970619 
Proof tidying and variable renaming (NA>na, NB>nb when of type msg)

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19970618 
paulson 
19970618 
Streamlined proofs of the secrecy of NB and added authentication of A and B

file  diff  annotate 
19970609 
paulson 
19970609 
Strengthened and streamlined the Yahalom proofs

file  diff  annotate 
19970507 
paulson 
19970507 
Conversion to use blast_tac (with other improvements)

file  diff  annotate 
19970215 
oheimb 
19970215 
reflecting my recent changes of the simplifier and classical reasoner

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19970117 
paulson 
19970117 
Now with Andy Gordon's treatment of freshness to replace newN/K

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19961220 
paulson 
19961220 
Corrected comments

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19961219 
paulson 
19961219 
Extensive tidying and simplification, largely stemming from
changing newN and newK to take an integer argument

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19961213 
paulson 
19961213 
Streamlined many proofs

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19961205 
paulson 
19961205 
Trivial renamings

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19961129 
paulson 
19961129 
Swapped arguments of Crypt (for clarity and because it is conventional)

file  diff  annotate 
19961128 
paulson 
19961128 
Extra fix needed in newN case

file  diff  annotate 
19961128 
paulson 
19961128 
Weaking of injectivity assumptions for newK and newN:
they are no longer assumed injective over all traces, merely over the
length of a trace

file  diff  annotate 
19961108 
paulson 
19961108 
Ran expandshort

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19961105 
paulson 
19961105 
Simplified new_keys_not_seen, etc.: replaced the
union over all
agents by the Spy alone. Proofs run faster and they do not have to be
set up in terms of a previous lemma.

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19961101 
paulson 
19961101 
Minor changes to comments

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19961028 
paulson 
19961028 
Simplified proofs

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19961018 
paulson 
19961018 
Addition of Reveal message

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19961007 
paulson 
19961007 
Simplified a proof

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19961001 
paulson 
19961001 
Simplified main theorem by abstracting out newK

file  diff  annotate 
19960930 
paulson 
19960930 
Removed some dead wood. Transferred lemmas used to prove analz_image_newK
to Shared.ML

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19960926 
paulson 
19960926 
Introduction of "lost" argument
Changed Enemy > Spy
Ran expandshort

file  diff  annotate 
19960925 
paulson 
19960925 
Last working version prior to introduction of "lost"

file  diff  annotate 
19960923 
paulson 
19960923 
Proof of Says_imp_old_keys is now more robust

file  diff  annotate 
19960913 
paulson 
19960913 
Reformatting; proved B_gets_secure_key

file  diff  annotate 
19960913 
paulson 
19960913 
Addition of Yahalom protocol

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19960912 
paulson 
19960912 
Tidied many proofs, using AddIffs to let equivalences take
the place of separate Intr and Elim rules. Also deleted most named clasets.

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