Tuesday, November 27, 2018

Home Unlabelled Cryptography What is the preferred approach to implementing blind signatures these days?

Cryptography What is the preferred approach to implementing blind signatures these days?

November 27, 2018

Cryptography What is the preferred approach to implementing blind signatures these days?

What is the preferred approach to implementing blind signatures these days?
Can a cryptographic function be created that uses multiple keys but is decrypted by any combination of a subset of those keys?
Can somebody help me decrypt RSA into ASCII??

What is the preferred approach to implementing blind signatures these days?

Posted: 26 Nov 2018 12:04 PM PST

I am working from this paper form 2009: "An Efficient Blind Signature Scheme Based on the Elliptic Curve Discrete Logarithm Problem" at http://www.isecure-journal.com/article_39171_47f9ec605dd3918c2793565ec21fcd7a.pdf

Have there been any new developments, or is there a popular and/or audited library I should be using?

Appreciate any pointers!

submitted by /u/elefnatt
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Can a cryptographic function be created that uses multiple keys but is decrypted by any combination of a subset of those keys?

Posted: 26 Nov 2018 03:25 PM PST

I am trying to find out if something like this exists.

Here is what I am trying:

You have a message.
Message is encrypted by the function
A unique secret key is given to 10 people
5 of the unique secret keys are required to decrypt the message. These 5 can be any combination of the 10.

I believe there is a way to do this by using a nested key format. Each of the 10 secret keys could decrypt a message revealing one or two of the other keys. Somehow maybe those sub-key combinations could be arranged so that you have the entire set when a certain number have been revealed. My brain is too lazy after turkey hangover to work out the logic at the moment.... so i am curious is anyone has heard of such a function.

submitted by /u/clever_girl_raptor
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Can somebody help me decrypt RSA into ASCII??

Posted: 26 Nov 2018 01:43 PM PST

submitted by /u/Smethadome
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