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125 Commits 239 Branches 16 Tags 136 MiB
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31 Commits

Author SHA1 Message Date
Csaba Kiraly
d4e2a0cf43
hashNameI: switch to faster implementation 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:38 -06:00
Csaba Kiraly
cc3a57ba7e
generalize hashToG1 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:38 -06:00
Csaba Kiraly
a5da2ae946
make namelen a const 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:38 -06:00
Csaba Kiraly
5429872772
more comments added 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:38 -06:00
Csaba Kiraly
964276f53f
formatting: use just one type section 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Csaba Kiraly
47985bb2d8
remove code of slow RSA based version 
Removed RSA-based version to ease maintenance, as it is
highly unlikely we would use it.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Csaba Kiraly
6a03fbac29
adding more comments 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Csaba Kiraly
8693453cc9
sign and verify metadata in Tau 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Csaba Kiraly
36a4fbdbe5
renaming pos.nim to rsa.nim 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Csaba Kiraly
680c0a54b6
generateAuthenticator: add some more explanation 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Csaba Kiraly
8158ecf892
generateAuthenticator: remove unused ubase parameter from naive impl 
No need to have the same interface on the two implementations, so
we can remove this parameter.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:37 -06:00
Dmitriy Ryajov
9265c594c1
rebasing main 2022-01-17 11:26:12 -06:00
Csaba Kiraly
7112570b3f
improving benchmark messages 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:12 -06:00
Csaba Kiraly
0c5a581c5a
parametrize sectorsblock and querylen 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:12 -06:00
Csaba Kiraly
b08901c73c
sectorsperblock should be an external parameter 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:12 -06:00
Csaba Kiraly
355d0d2ab8
use blst_p1_add_or_double instead of blst_p1_add 
blst exposes two add functions: one that works for the corner case
of doubling, and one that isn't. It seems safer to use the one that
works, even if it is highly improbable in these cases that doubling
would occur.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:12 -06:00
Csaba Kiraly
6ff0031293
speed up tag generation by a factor of s 
Scalar multiplications in tag generation can be rearranged
to benefit from the way random points are being generated.
Since random points are themselves generated using scalar
multiplication and the base is common, the sum of multiplications
becomes a single multiplication with the scalar sum, resulting in
a nice speedup.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Csaba Kiraly
05e343a039
add optimized verifyPairing implementation 
When verifying two pairings, one final exponentiation
can be spared through the use of cneg.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Csaba Kiraly
6104782618
exchange parameter order in pairing 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Csaba Kiraly
73f90c2dc5
fix benchmark template 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Csaba Kiraly
b44cb86800
change random number generator to a secure one 
Use Rng based on BrHmacDrbgContext

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Csaba Kiraly
6b8c732fe0
add verifyPairings abstraction 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Csaba Kiraly
5eb2408c16
fixing DST tag in hashToG1 
The DST tag should be unique to achieve domain separation
of hash functions as defined in:
https://tools.ietf.org/id/draft-irtf-cfrg-hash-to-curve-06.html#domain-separation

Changed DST tag to one that indicates the PoC status of this code.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:11 -06:00
Tanguy
09996476de
fix getSector 2022-01-17 11:26:10 -06:00
Csaba Kiraly
998aad6378
improve documentation of BLS scheme 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:10 -06:00
Csaba Kiraly
c52b3ac30a
draft test and benchmark code for BLS PoS 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:10 -06:00
Csaba Kiraly
5ee331ac75
draft version of bls proofs 
Implementation of the BLS-based public PoS scheme from
Shacham H., Waters B., "Compact Proofs of Retrievability"
using pairing over BLS12-381 ECC

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:10 -06:00
Csaba Kiraly
0ce3852e4f
using normal file io instead of memfiles 
mmap has serveral potential issues and we do not really need it, so
changing to use the normal system file interface is better.

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:10 -06:00
Csaba Kiraly
076528e8cf
separating demo code from library 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:10 -06:00
Csaba Kiraly
4ed5ba18ec
better proc names 
Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:09 -06:00
Csaba Kiraly
6559ff6f04
initial commit of the Shacham RSA-based public scheme 
Minimal working version with lots of error checks and corrections
still needed.
- using Bearssl RSA code through libp2p
- with selecteble BigInt library for experimentation

Signed-off-by: Csaba Kiraly <csaba.kiraly@gmail.com>
 2022-01-17 11:26:09 -06:00