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123 commits

Author SHA1 Message Date
Manuel Pégourié-Gonnard
af081f5460 Make ECDSA sign actually restartable 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
50b63ba2f5 Use ecp_gen_privkey() in ECDSA sign 
Two different changes:

- the first one will allow us to store k in the restart context while
  restarting the following ecp_mul() operation

- the second one is an simplification, unrelated to restartability, made
  possible by the fact that ecp_gen_privkey() is now public
 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
675439620d Improve sign/key_tries handling 
(Unrelated to restartable work, just noticed while staring at the code.)

Checking at the end is inefficient as we might give up when we just generated
a valid signature or key.
 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
b90883dc1d Prepare infra for restartable sign 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
addb10efac Create functions for restartable sign 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
5314f234ca Make verify_restartable() actually restartable 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
a0c5bcc2bc Add infrastructure for ecdsa_verify_restartable() 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
722e5156fd Add test for ecdsa_read_signature_restartable() 
Test values taken from a random signature as generated in
ecdsa_write_read_random() test function
 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
32aa4375cc Declare ecdsa_read_signature_restartable() 
Not making ecdsa_verify_restartable() public, as it isn't called from any
other module.
 2017-08-09 11:44:53 +02:00
Manuel Pégourié-Gonnard
411079fc34 Rm obsolete comment 
Refers to ecp_mul() while we're now calling ecp_muladd().

Wrap long lines while at it.
 2017-08-09 11:44:53 +02:00
Ron Eldor
b68733bf62 ECDSA alternative support 
Support for alternative implementation of ECDSA, at the higher layer
 2017-08-07 18:00:22 +03:00
Manuel Pégourié-Gonnard
37ff14062e Change main license to Apache 2.0 2015-09-04 14:21:07 +02:00
Manuel Pégourié-Gonnard
6fb8187279 Update date in copyright line 2015-07-28 17:11:58 +02:00
Manuel Pégourié-Gonnard
e3a062ba1f Rename ecp_use_known_dp -> mbedtls_ecp_group_load() 2015-05-11 18:46:47 +02:00
Manuel Pégourié-Gonnard
56cc88a796 Rm ecp_add() and add ecp_muladd() 2015-05-11 18:40:45 +02:00
Manuel Pégourié-Gonnard
f9e9481bc5 Split mbedtls_hmac_drbg_init() -> seed{,_buf}() 2015-04-28 22:07:14 +02:00
Manuel Pégourié-Gonnard
2cf5a7c98e The Great Renaming 
A simple execution of tmp/invoke-rename.pl
 2015-04-08 13:25:31 +02:00
Manuel Pégourié-Gonnard
eadda3f3ad Add missing #ifdef in ecdsa.c 2015-04-03 13:15:34 +02:00
Manuel Pégourié-Gonnard
8fce937a1a Simplify ecdsa_context 2015-03-31 13:06:41 +02:00
Manuel Pégourié-Gonnard
dfdcac9d51 Merge ecdsa_write_signature{,_det}() together 2015-03-31 11:41:42 +02:00
Manuel Pégourié-Gonnard
63e931902b Make a helpful constant public 2015-03-31 11:15:48 +02:00
Manuel Pégourié-Gonnard
b8cfe3f0d9 pk_sign() now requires non-NONE md_alg for ECDSA 2015-03-31 11:14:41 +02:00
Manuel Pégourié-Gonnard
ca878dbaa5 Make md_info_t an opaque structure 
- more freedom for us to change it in the future
- enforces hygiene
- performance impact of making accessors no longer inline should really be
  negligible
 2015-03-25 21:37:15 +01:00
Manuel Pégourié-Gonnard
240b092a6c Drop dummy self_test functions 2015-03-19 15:30:28 +00:00
Manuel Pégourié-Gonnard
7f8099773e Rename include directory to mbedtls 2015-03-10 11:23:56 +00:00
Manuel Pégourié-Gonnard
fe44643b0e Rename website and repository 2015-03-06 13:17:10 +00:00
Manuel Pégourié-Gonnard
a273371fc4 Fix "int vs enum" warnings from armcc v5 
enumerated type mixed with another type
 2015-02-10 17:34:48 +01:00
Rich Evans
00ab47026b cleanup library and some basic tests. Includes, add guards to includes 2015-02-10 11:28:46 +00:00
Manuel Pégourié-Gonnard
860b51642d Fix url again 2015-01-28 17:12:07 +00:00
Manuel Pégourié-Gonnard
085ab040aa Fix website url to use https. 2015-01-23 11:06:27 +00:00
Manuel Pégourié-Gonnard
9698f5852c Remove maintainer line. 2015-01-23 10:59:00 +00:00
Manuel Pégourié-Gonnard
19f6b5dfaa Remove redundant "all rights reserved" 2015-01-23 10:54:00 +00:00
Manuel Pégourié-Gonnard
a658a4051b Update copyright 2015-01-23 09:55:24 +00:00
Manuel Pégourié-Gonnard
967a2a5f8c Change name to mbed TLS in the copyright notice 2015-01-22 14:28:16 +00:00
Manuel Pégourié-Gonnard
e959979621 Fix ECDSA sign buffer size 2014-11-12 00:01:52 +01:00
Paul Bakker
66d5d076f7 Fix formatting in various code to match spacing from coding style 2014-06-17 17:06:47 +02:00
Paul Bakker
9af723cee7 Fix formatting: remove trailing spaces, #endif with comments (> 10 lines) 2014-05-01 13:03:14 +02:00
Manuel Pégourié-Gonnard
cef4ad2509 Adapt sources to configurable config.h name 2014-04-30 16:40:20 +02:00
Manuel Pégourié-Gonnard
35e95ddca4 Add special return code for ecdsa length mismatch 2014-04-09 15:49:59 +02:00
Manuel Pégourié-Gonnard
dd75c3183b Remove potential timing leak in ecdsa_sign() 2014-03-31 11:55:42 +02:00
Manuel Pégourié-Gonnard
9592485d0c Fix some MSVC12 conversion warnings 2014-03-21 12:03:07 +01:00
Manuel Pégourié-Gonnard
fe34a5fb83 Add entropy callbacks to HMAC_DRBG 2014-01-30 15:06:40 +01:00
Manuel Pégourié-Gonnard
7845fc06c9 Use new HMAC_DRBG module for deterministic ECDSA 2014-01-30 10:58:48 +01:00
Paul Bakker
9f3c7d7278 Added missing POLARSSL_ECDSA_DETERMINISTIC around ecdsa_write_signature_det() 2014-01-23 16:11:14 +01:00
Paul Bakker
18e9f3282b Added missing static to md_info_by_size() in ecdsa.c 2014-01-23 16:08:38 +01:00
Paul Bakker
bf98c3dd11 Merged deterministic ECDSA 
Conflicts:
	library/ecdsa.c
 2014-01-23 15:48:01 +01:00
Paul Bakker
0ac99ca7bc Merged support for secp224k1, secp192k1 and secp25k1 2014-01-22 13:10:48 +01:00
Manuel Pégourié-Gonnard
7c59363a85 Remove a few dead stores 2014-01-22 13:02:39 +01:00
Manuel Pégourié-Gonnard
5304812b2d Fix theoretical compliance issue in ECDSA 
The issue would happen for curves whose bitlength is not a multiple of eight
(the only case is NIST P-521) with hashes that are longer than the bitlength
of the curve: since the wides hash is 512 bits long, this can't happen.
Fixing however as a matter of principle and readability.
 2014-01-17 21:41:39 +01:00
Manuel Pégourié-Gonnard
5e6edcfd96 Add fallback for md_alg == NONE to ecdsa_sign_det() 2014-01-07 16:19:28 +01:00
Manuel Pégourié-Gonnard
937340bce0 Add ecdsa_write_signature_det() 2014-01-06 15:29:03 +01:00
Manuel Pégourié-Gonnard
f42bca6da0 Little HMAC_DRBG refactoring 2014-01-06 15:29:03 +01:00
Manuel Pégourié-Gonnard
4daaef7e27 Add ecdsa_sign_det() with test vectors 2014-01-06 15:29:03 +01:00
Manuel Pégourié-Gonnard
461d416892 Add minified HMAC_DRBG for deterministic ECDSA 2014-01-06 11:01:38 +01:00
Manuel Pégourié-Gonnard
e7072f8d11 Fix theoretical compliance issue in ECDSA 
The issue would happen for curves whose bitlength is not a multiple of eight
(the only case is NIST P-521) with hashes that are longer than the bitlength
of the curve: since the wides hash is 512 bits long, this can't happen.
Fixing however as a matter of principle and readability.
 2014-01-06 11:01:38 +01:00
Manuel Pégourié-Gonnard
97871ef236 Some operations are not supported with Curve25519 2013-12-05 15:58:38 +01:00
Manuel Pégourié-Gonnard
178d9bac3c Fix ECDSA corner case: missing reduction mod N 
No security issue, can cause valid signatures to be rejected.

Reported by DualTachyon on github.
 2013-10-29 13:40:17 +01:00
Manuel Pégourié-Gonnard
1001e32d6f Fix return value of ecdsa_from_keypair() 2013-10-28 14:01:08 +01:00
Manuel Pégourié-Gonnard
161ef968db Cache pre-computed points for ecp_mul() 
Up to 1.25 speedup on ECDSA sign for small curves, but mainly useful as a
preparation for fixed-point mult (a few prototypes changed in constness).
 2013-09-18 15:37:44 +02:00
Manuel Pégourié-Gonnard
456d3b9b0b Make ECP error codes more specific 2013-09-18 14:35:53 +02:00
Manuel Pégourié-Gonnard
4cf0686d6d Remove spurious '+ 3' in ecdsa_write_signature() 2013-09-18 14:34:33 +02:00
Manuel Pégourié-Gonnard
c75c56fef7 Fix off-by-one error in ecdsa_write_signature() 
Made some signature fail with 521-bit curve
 2013-09-02 16:25:37 +02:00
Manuel Pégourié-Gonnard
e09d2f8261 Change ecp_mul() prototype to allow randomization 
(Also improve an error code while at it.)
 2013-09-02 14:29:09 +02:00
Manuel Pégourié-Gonnard
db77175e99 Make ecdsa_verify() return value more explicit 2013-08-27 22:21:21 +02:00
Manuel Pégourié-Gonnard
f499993cb2 Add ecdsa_from_keypair() 
Also fix bug/limitation in mpi_copy: would segfault if src just initialised
and not set to a value yet. (This case occurs when copying a context which
contains only the public part of the key, eg.)
 2013-08-20 20:46:03 +02:00
Manuel Pégourié-Gonnard
8eebd012b9 Add an ecdsa_genkey() function 2013-08-20 20:08:28 +02:00
Manuel Pégourié-Gonnard
b694b4896c Add ecdsa_{read,write}_signature() 2013-08-20 20:04:16 +02:00
Manuel Pégourié-Gonnard
56a487a17f Minor ecdsa cleanups 
- point_format is of no use
- d was init'ed and free'd twice
 2013-08-16 14:00:52 +02:00
Paul Bakker
cca998a4c5 Fixed memory leak in ecdsa_sign() / ecdsa_verify() in case of error 2013-07-26 14:22:16 +02:00
Manuel Pégourié-Gonnard
7c8934ea0e Add ecdsa_init and ecdsa_free 2013-07-08 15:30:23 +02:00
Manuel Pégourié-Gonnard
3aeb5a7192 Add ECDSA signature primitive. 2013-01-26 19:11:28 +01:00
Manuel Pégourié-Gonnard
b309ab2936 Add ECDSA sign primitive 2013-01-26 19:11:28 +01:00
Manuel Pégourié-Gonnard
2aea1416f9 Add skeleton ecdsa.[ch] 2013-01-26 19:11:28 +01:00