Commit message (Collapse) | Author | Age | |
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* | fixing #6149 | Christian Grothoff | 2020-04-11 |
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* | fix sign api for to address #6164 | Christian Grothoff | 2020-04-08 |
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* | improve comments (#6164) | Christian Grothoff | 2020-04-07 |
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* | Point to explanatory documentation. | Marcello Stanisci | 2020-03-28 |
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* | use void * instead of char * for RSA key material to make it more clear that ↵ | Christian Grothoff | 2020-03-17 |
| | | | | these are not 0-terminated strings | ||
* | use new POW function consistently, also in revocation | Christian Grothoff | 2019-11-30 |
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* | create crypto_pow, in preparation for #3795 | Christian Grothoff | 2019-11-30 |
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* | global reindent, now with uncrustify hook enabled | Christian Grothoff | 2019-10-05 |
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* | uncrustify as demanded. | ng0 | 2019-09-08 |
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* | fix dead link | Schanzenbach, Martin | 2019-08-08 |
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* | add option to display private keys | Christian Grothoff | 2019-06-14 |
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* | implement backchannel encryption/decryption | Christian Grothoff | 2019-04-16 |
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* | implement handle_validation_response logic | Christian Grothoff | 2019-04-14 |
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* | new key, new HELLO | Christian Grothoff | 2019-04-12 |
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* | introduce GNUNET_memcmp() and GNUNET_is_zero() | Christian Grothoff | 2019-04-06 |
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* | more work on TCP communicator | Christian Grothoff | 2019-01-28 |
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* | src: for every AGPL3.0 file, add SPDX identifier. | ng0 | 2019-01-14 |
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* | draft ATS API for TNG | Christian Grothoff | 2018-11-29 |
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* | add more general HMAC function for JWTs | Schanzenbach, Martin | 2018-07-21 |
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* | Changed decription of GNUNET_CRYPTO_EddsaPublicKey. | Bernd Fix | 2018-07-12 |
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* | paragraph for gnunet devs that don't know how to use the web | psyc://loupsycedyglgamf.onion/~lynX | 2018-06-07 |
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* | glitch in the license text detected by hyazinthe, thank you! | psyc://loupsycedyglgamf.onion/~lynX | 2018-06-07 |
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* | first batch of license fixes (boring) | psyc://loupsycedyglgamf.onion/~lynX | 2018-06-05 |
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* | typofix | amirouche | 2018-01-08 |
| | | | | Signed-off-by: ng0 <ng0@n0.is> | ||
* | doxygen/indentation fixes | Christian Grothoff | 2017-11-02 |
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* | add -P option to gnunet-ecc | Christian Grothoff | 2017-11-01 |
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* | add missing const | Christian Grothoff | 2017-10-31 |
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* | introducing GNUNET_CRYPTO_ecdhe_create2() to avoid malloc nonsense | Christian Grothoff | 2017-02-15 |
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* | use new shortmap to simplify CADET logic a bit | Christian Grothoff | 2017-01-17 |
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* | introducing the short map | Christian Grothoff | 2017-01-17 |
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* | fix dlog API for mteich | Christian Grothoff | 2016-07-06 |
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* | Rework the error handling for gcd(r,n) != 1 so the Taler wallet can see errors. | Jeff Burdges | 2016-06-08 |
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* | Use a uniform random number mod an RSA composites for both | Jeff Burdges | 2016-05-30 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the blinding factor and the full domain hash. This resolves an attack against the blinding factor in Taler: There was a call to GNUNET_CRYPTO_kdf in bkey = rsa_blinding_key_derive (len, bks); that gives exactly len bits where len = GNUNET_CRYPTO_rsa_public_key_len (pkey); Now r = 2^(len-1)/pkey.n is the probability that a set high bit being okay, meaning bkey < pkey.n. It follows that (1-r)/2 of the time bkey > pkey.n making the effective bkey be bkey mod pkey.n = bkey - pkey.n so the effective bkey has its high bit set with probability r/2. We expect r to be close to 1/2 if the exchange is honest, but the exchange can choose r otherwise. In blind signing, the exchange sees B = bkey * S mod pkey.n On deposit, the exchange sees S so they can compute bkey' = B/S mod pkey.n for all B they recorded to see if bkey' has it's high bit set. Also, note the exchange can compute 1/S efficiently since they know the factors of pkey.n. I suppose that happens with probability r/(1+r) if its the wrong B, not completely sure. If otoh we've the right B, then we've the probability r/2 of a set high bit in the effective bkey. Interestingly, r^2-r has a maximum at the default r=1/2 anyways, giving the wrong and right probabilities 1/3 and 1/4, respectively. I fear this gives the exchange a meaningful fraction of a bit of information per coin involved in the transaction. It sounds damaging if numerous coins were involved. And it could run across transactions in some scenarios. I suspect we need a more uniform deterministic pseudo-random number generator for blinding factors. Just fyi, our old call to gcry_mpi_randomize had this same problem. I do not believe this caused a problem for the full domain hash, but we can fix it easily enough anyways. | ||
* | fixing #4483: optimize blinding key storage/transmission | Christian Grothoff | 2016-05-24 |
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* | rename.sh GNUNET_CRYPTO_rsa_BlindingKey to GNUNET_CRYPTO_RsaBlindingKey ↵ | Christian Grothoff | 2016-05-19 |
| | | | | following naming conventions | ||
* | Fix paramater description | Jeff Burdges | 2016-03-21 |
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* | Updated global symbols for FDH | Jeff Burdges | 2016-03-21 |
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* | fixing symbol naming and coding convention issues | Christian Grothoff | 2016-03-21 |
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* | -fix (C) notices | Christian Grothoff | 2016-01-19 |
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* | add crc8 | Christian Grothoff | 2016-01-17 |
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* | doxygen: add documentation links | Gabor X Toth | 2016-01-15 |
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* | doxygen: group/module definitions (part 1) | Gabor X Toth | 2016-01-11 |
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* | - Add ecdsa ecdh functions | Martin Schanzenbach | 2016-01-04 |
| | | | | | - Update identity token to encrypted protocol | ||
* | -fix ftbfs | Christian Grothoff | 2015-09-05 |
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* | add GNUNET_CRYPTO_ecc_pmul_mpi | Christian Grothoff | 2015-09-05 |
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* | adding bin_to_point and point_to_bin functions for GNUNET_CRYPTO_ecc API | Christian Grothoff | 2015-09-05 |
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* | DEFAULTSERVICES is dead, remove remains | Christian Grothoff | 2015-07-08 |
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* | -fix non-deterministic peerstore sync failure | Christian Grothoff | 2015-07-06 |
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* | -adding ecc dlog support | Christian Grothoff | 2015-07-02 |
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* | fix #3869: outdated FSF address | Christian Grothoff | 2015-06-30 |
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