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Working in industry as a cryptography engineer.

To contact me, email paulgrub AT umail DOT iu DOT edu


Apr
3
revised Private RSA key for HMAC key
added 168 characters in body
Dec
20
revised Outsourcing arbitrary computations securely
minor fix; sorry for one more review task
Dec
6
revised Why should I use Authenticated Encryption instead of just encryption?
Fixed mis-statement of encryption security
Dec
5
revised counting points on elliptic curve
Fixed equation formatting and field name
Nov
29
revised Is this encryption scheme perfectly secure?
edited tags
Nov
18
revised Can we build authenticated encryption using Feistel Networks?
Changed the address of the Rogaway hyperlink to point to his personal site.
Nov
14
revised what is the state of the art algorithm to encrypt credit card data
Added link to FPE article
Nov
12
revised Can anyone give an example where (asymmetric) crypto can go wrong due to selection of wrong groups?
Fixed definition of smooth integer
Sep
26
revised Provable Encryption
Fixed dead link to ZK SHA1 preimage proof
Sep
19
revised Generating keys with HKDF from Diffie Hellman agreement
Added some links to relevant papers.
Sep
19
revised Order Preserving Encryption for Numeric Data Values
Added another relevant tag
Sep
19
revised How secure is this use of Ziv-Lempel encoding?
Added relevant tag
Sep
17
revised probability of N hash digits colliding
Changed the math to fit the OP's definition of 'digits' as hexadecimal.
Aug
21
revised Is it possible to match encrypted documents using user-defined search terms?
Added a few more papers on searchable encryption.
Aug
20
revised How resilient to attackers with extreme resources available is this encryption method?
added 158 characters in body
Aug
20
revised How resilient to attackers with extreme resources available is this encryption method?
deleted 1 characters in body
Aug
20
revised How resilient to attackers with extreme resources available is this encryption method?
added 428 characters in body
Aug
9
revised Is this method of deterministically using CBC secure?
edited title
Jun
25
revised How does order-preserving encryption work?
edited body
Jun
24
revised If we can find prime numbers larger than 17 milion digits, why can't we find all 1024bit primes?
deleted 2 characters in body