|EMV tag search
||Look up EMV tags in this handy database. Search by keyword e.g. for all tags that contain
the word "currency" or "cryptogram" in the description, or look up a hex tag e.g "9F20".|
||Decode EMV TLV (Tag, Length Value) byte strings into their constituent tags and sub-tags.
Useful for analysing APDU traces, responses and so on.|
||Generate CAP codes using an emulated banking card and CAP calculator, to test against real gadgets
or for testing authentication servers.|
||Generate and verify EMV ARQC, ARPC and TC cryptograms, calculated using the vital parameters of the
card, UDKs, ATC etc.|
||Encrypt and decrypt hex strings using DES and 3DES, using the basic modes of operation, ECB, CBC.|
||Decode a binary file into an ASN1 dump using an online interface to Peter Gutmann's dumpasn1 tool|
|PIN translation tools
||Encrypt, decrypt and translate ISO PINblocks between different encryption keys. PINs, PANs, padding... all sorts of fun!|
|Keyshare generation tools
||Automatically generate test keys of various lengths, and split into components. KCVs are automatically provided for each component and the whole key.|
|Truecolour hex dump tool
||This hex dump tool will create a multicoloured, annotated hex dump of the provided file, making it easy to spot strings, markers, and high and low entropy areas of the file. Very useful for when you don't have your favourite hex dump tool to hand. |
|Character set encoding conversion||Convert strings of text and hex between ASCII, ECBDIC and hex representations. Suprising how often you need one of these!|
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This site is run by Steven Murdoch and hosted by the Information Security Group at University College London. More details about the work we are doing can be found on our information security research blog: Bentham’s Gaze.
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