Questions tagged [tokenization]

Tokenization is the process of breaking a stream of text up into words, phrases, symbols, or other meaningful elements called tokens.

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PAN authenticatable irreversible tokenization algorithm

I need to implement algorithm to create authenticatable irreversible tokens from PAN, without using any secrets. Is it possible? Is there any standards for that from associations? I was thinking ...
1 vote
3 answers
752 views

Base64 or hex to attach auth tokens to URL?

I just came across this question, but it does not really answer my main concern that I have regarding password tokens. To authenticate a client who is not logged in; I generate two random tokens and ...
5 votes
3 answers
1k views

How feasible is word-level frequency analysis over English (or any language)?

Say I have some black box which, given any English word, deterministically outputs a token for that word. Assume our black box is implemented using strong cryptography, i.e. the hardness of reversing ...
0 votes
2 answers
237 views

Understanding token security

I am having some problems, cryptographically speaking, digesting this information. There is a table that seems to say that tokens provide "end to end security" (I suppose we understand different ...
2 votes
1 answer
457 views

JWT Common Practices

I had a few questions in regards to certain practices used by JWT developers. I'm relatively new to both encryption and JWTs and the context given is for developing a system on nodejs. How should ...
1 vote
1 answer
79 views

Question on Tokenization and the need to maintain a value to token lookup

I'm a newbie and an idiot to boot. I've a question in relation to tokenizing: is there a methodology out there that would allow you reidentify without using a token to value lookup? I'd have thought ...
2 votes
2 answers
3k views

How do I verify a reset token if the token is hashed in DB?

I've been searching around the web for best practice how-to on secure password reset system (email with reset url), and the idea to hash the token in the database, which I did not implement at first, ...
1 vote
1 answer
194 views

Is it feasible to execute a range query over tokenized data?

Suppose we have a DB with n records on it, one of the fields is numeric and considered sensitive (e.g. ID number). If we use tokenization for said field, could we query all records between x and y? ...
6 votes
2 answers
2k views

DRM simple clone

I have been trying to encrypt media(Video and audio content) from a nodejs server to a client like android or iOS. I heard of DRM but could not get a reliable implementation of DRM. I wanted to make ...
0 votes
1 answer
141 views

Token generation using Mac?

I'm writing a web service that gives a unique token per client connection. And the following are the desired properties. I'm assuming server's issued token db is lost and untrustable client presents ...
0 votes
0 answers
610 views

Secure algorithm for calculating token and comparison

I am trying to define algorithm that would create a irreversible token from IDs, which are 10 digit information, and then would be compared on two different end points. Between end points, only ...