Cryptography September 2022

cryptography@lists.squeakfoundation.org

2 participants
5 discussions

Progress Report: Callisto House AND Questions bout ASN1 tagging of PKIX structures
by rabbit 05 Oct '22

05 Oct '22

Hey Ron; Hey everyone! I am hoping y'all are quite well! I am. I’m a disabled veteran, President of my non-profit, Callisto House :: decentralized mobile homeless solutions. I aim to use my Async Promise framework to build a donation bartering system for their use, in each House. *SecureObjectCapabilities.* *Issue: *Why does squeaksource.com hang-up so often? Err... ** I have refactored the packages in Cryptography, Oceanside & Promises. I put all Promise packages in Promise, including Raven&SqueakELib&Brook&... previous incarnations. I removed all Promise packages from Cryptography and Oceanside. I created the project Kafka. /--- Loading instructions :: Update from trunk, Crypto, PromisesLocal and ParrotTalk ---\ One: save a new 6.1alpjha image to crypto.image... Two: This code switches to the trunk update stream and update to alpha; then load and test Crypto, then save. See /CryptographyBootsatrap class>>#satrap. / Everytime this image #startUp: true, the latest update to alpha; then load and test latest Crypto, then save. /Installer ss project: 'Cryptography'; install: 'CryptographyBootsatrap'. (Smalltalk at: 'CryptographyBootsatrap' ifAbsent: [^ nil]) ///satrap/. / Three: I install PomisesLocal & ParrotTalk packages /Installer ss project: 'Promises'; install: 'PromisesLocal'. Installer ss project: 'Cryptography'; install: 'ParrotTalkLoader'./ Lastly, I run all tests in the TestRunner. #GREEN! \--- Confirm by running apropos unit tests: *#GREEN!* . .. ... '...^,^ ---/ My priority task list: 1. Checkpoint a stable ParrotTalk, ASN1 & LocalPromises 2. *{XXX}* ASN1 extensions to provide class tagging differentiation. * This to support RemotePromises encoding in ASN1. 3. Checkpoint a stable ProCrypto with class tagging ASN1 4. Switch LocalPromises EventualSends to each be its own EventualProcess, on a VatScheduler. * Add customized Semaphores to unschedule back into the Vat suspended pool * rescheduled when the Semaphore is signaled. 5. Re-establish RemotePromises 6. Checkpoint a stable RemotePromises 7. Naming Services, using RemotePromises 8. Default VAT Services (Chat, Log, Stats, Social Feeds, ...) 9. Double encrypt ParrotTalk | Bridge ParrotTalk sessions 10. Checkpoint a stable BridgingParrotTalk 11. Kafka | Replicating, fault-tolerant Comms (issue with event deletion) 12. Barter exchange network 13. SPADSServer 14. FFI-threaded 15. libsodium --- *{XXX}* *ASN1 extensions to provide class tagging differentiation. * *This to support RemotePromises encoding in ASN1.* * * *My current questions are whether the various PKIX et al use a non-UNIVERSAL class tag, and/or Constructed? As well, what are the correct numerical tags for these structures? Advice, por favor?* * DSAPublicKey * RSAPublicKey * X509Certificate * ... The numerical tags are buried in this document, but I am totally unaware of class tagging: *New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX) <https://datatracker.ietf.org/doc/html/rfc5912>* Many thanks for any guidance you can provide. I am grateful for your pointing out the straight path to me! Have a Good One; Keep it, Light. Kindly, rabbit . .. … ‘…^,^ Sent from Callisto House :: decentralized mobile homeless solutions

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ASN1WrapperConstructedType and ASN1ExplicitContextValue use
by rabbit 12 Sep '22

12 Sep '22

Hi Ron, I see that originally when you had introduce ASN1 to our library, you defined the classes ASN1WrapperConstructedType and ASN1ExplicitContextValue. I tried to implement decode and encode to ASN1WrapperConstructedType, but only partially. I used your ASN1ExplicitContextValue but have not completed it. Now I have the need to implement, as I attempt to switch the PromisesRemote to using ASN1 encoding, rather than STON. In looking at Object>>#asn1Tag we construct a tag with Object>>#asn1Tag ^ (ASN1MappedSequenceType new asn1Tag "48" bitOr: 2r11000000) "Application" bitOr: 2r00100000 "Constructed" So we are an application class and constructed. In ASN1OutputStream>>#typeForTag: tag, the tag is broken down into the numericTag, the tagClass (application) and whether it is constructed. This is called from decode: anObject with the call: ^ self encode: anObject with Type: (self typeForTag: anObject asn1Tag) So Object>>#asn1Tag is called. So with a ASN1 non-registered object, we end up with a ASN1WrapperConstructedType. I am totally unsure about how the ASN1ExplicitContextValue should be used with the ASN1WrapperConstructedType, nor how it builds the context from the ivars of the provided anonymous object. My related concern is whether all of the crypto objects with ASN1 definitions ought to be of the application tagClass. Any guidance you could provide me for this would be very welcome! If it is not too far back in history! Heh! Thanks! -- Have a good one; keep it, light. Kindly, rabbit . .. … ‘…^,^ Sent from Callisto House :: decentralized mobile homeless solutions

2 14

I’m sad.
by rabbit 12 Sep '22

12 Sep '22

It seems no one has any time to maintain Cryptography. I think people are using it. I’m looking into adopting libsodium and would LOVE some help! Will Cryptography die on the Vine? Best, rabbit 🐰 Have a Good One; Keep it, Light. Kindly, rabbit . .. … ‘…^,^ Sent from Callisto House :: decentralized mobile homeless solutions

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Porting the Cryptography library to use libsodium
by rabbit 11 Sep '22

11 Sep '22

Good morning! I have successfully made and installed libsodium on my box (Ubuntu Jammy). I wish to access functions in the libsodium.so from Squeak, but I am not familiar with FFI (Alien?). Another question I have is how to configure the vm to include libsodium.so or does using FFI remove that need? Is it possible to have the VM automatically download, make and install the libsodium.so? My approach is to get it all working then make it work right. Have a Good One; Keep it, Light. Kindly, rabbit . .. … ‘…^,^ Sent from Callisto House :: decentralized mobile homeless solutions

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My endeavors…
by rabbit 10 Sep '22

10 Sep '22

Just to give you a heads up, I’ve set my plate with the following morsels: 1) SPADSServer with frame probe detection and protocol operations stack switching, for adaptive secure connections. Implementing a MultiListener to listen to multiple ports at the same time. 2) Port RemotePromises to use an ASN1Encoder thunk instead of STON. Change the tests to test the finite set of ASN1 messages sent as the PromiseProtocol over the Session. 3) Debug Raven and RemotePromises releases for their failure to handle a triggered event on #startupSuccessful. Did event registrations not get copied correctly when the operation gets switched? 4) Port our Cryptography onto the cross-platform libsodium library. 5) Kafka Client. Have a Good One; Keep it, Light. Kindly, rabbit . .. … ‘…^,^ Sent from Callisto House :: decentralized mobile homeless solutions

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Cryptography September 2022