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OpenJavaCard Libraries

This is a set of reusable libraries for the JavaCard environment.

CAUTION: All completely experimental at this point.

Build Status

Project

For more information about this overall project, see our website.

You can follow us on Twitter and chat with us on Gitter.

Overview

Name Description Status
library-auth Authentication framework Experiment
library-ber BER-TLV processing Usable
library-codec Codec library Experiment
library-ctlv Compact-TLV utilities Experiment
library-cvmpin CVM PIN wrapper Experiment
library-debug Debug utilities Experiment
library-fortuna Fortuna PRNG Usable
library-isofs ISO7816 filesystem Experiment
library-oath OATH authentication Experiment
library-password Password authentication Experiment
library-rsa RSA supplementary ciphers Experiment
library-string String processing Experiment
library-tlv TLV object representation Experiment
--------------------- ------------------------------------ ------------

Components

  • BER-TLV library
    • Callback-based TLV parsing
    • Builder-based TLV writing
    • Supports 2-byte tags
    • Flexible interface
    • Allocation-free design
  • Compact-TLV library
    • Minimalist implementation
    • Can construct historical bytes for ATR
  • Fortuna PRNG implementation
    • Well-Known algorithm
    • Refuses operation without seed
  • RSA library
    • OAEP encryption
    • MGF1 masking
  • String library
    • Character type functions
    • String statistics utility
  • Password library
    • Salt and hash

Hacks And Intentions

  • ISO filesystem library
    • lots of code exists
    • nothing usable yet
  • Authentication library
    • some code exists
    • modularize authentication
    • support key derivation
  • TLV object representation
  • OATH cipher suite
  • Blinding ciphers (pseudonymous buddy matching)
  • CBOR implementation
    • we would love to have one
  • Codec library
    • hex, base64...

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Class libraries for JavaCard

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