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160 Commits

Author SHA1 Message Date
Nick Mathewson
01905a6ef9 Excise PK_NO_PADDING entirely: Unpadded RSA is silly. 
We never use it, so having it around is pointless.

Suggested by Sebastian
 2012-03-27 22:38:06 -04:00
Nick Mathewson
de0dca0de7 Refactor the API for setting up a block cipher. 
It allows us more flexibility on the backend if the user needs to
specify the key and IV at setup time.
 2012-03-27 22:37:56 -04:00
Nick Mathewson
26e789fbfd Rename nonconformant identifiers. 
Fixes bug 4893.

These changes are pure mechanical, and were generated with this
perl script:

  /usr/bin/perl -w -i.bak -p

  s/crypto_pk_env_t/crypto_pk_t/g;
  s/crypto_dh_env_t/crypto_dh_t/g;
  s/crypto_cipher_env_t/crypto_cipher_t/g;
  s/crypto_digest_env_t/crypto_digest_t/g;

  s/aes_free_cipher/aes_cipher_free/g;
  s/crypto_free_cipher_env/crypto_cipher_free/g;
  s/crypto_free_digest_env/crypto_digest_free/g;
  s/crypto_free_pk_env/crypto_pk_free/g;

  s/_crypto_dh_env_get_dh/_crypto_dh_get_dh/g;
  s/_crypto_new_pk_env_rsa/_crypto_new_pk_from_rsa/g;
  s/_crypto_pk_env_get_evp_pkey/_crypto_pk_get_evp_pkey/g;
  s/_crypto_pk_env_get_rsa/_crypto_pk_get_rsa/g;

  s/crypto_new_cipher_env/crypto_cipher_new/g;
  s/crypto_new_digest_env/crypto_digest_new/g;
  s/crypto_new_digest256_env/crypto_digest256_new/g;
  s/crypto_new_pk_env/crypto_pk_new/g;

  s/crypto_create_crypto_env/crypto_cipher_new/g;

  s/connection_create_listener/connection_listener_new/g;
  s/smartlist_create/smartlist_new/g;
  s/transport_create/transport_new/g;
 2012-01-18 15:53:30 -05:00
Nick Mathewson
85c7d7659e Add macros to construct openssl version numbers 
It's a pain to convert 0x0090813f to and from 0.9.8s-release on the
fly, so these macros should help.
 2012-01-10 10:40:30 -05:00
George Kadianakis
b31601975b Move DH_GENERATOR to crypto.c. 2011-11-25 17:44:11 +01:00
George Kadianakis
4938bcc06a Do dynamic DH modulus storing in crypto.c. 2011-11-25 17:39:28 +01:00
George Kadianakis
1d1d5ae7f8 Finishing touches. 
- Make check-spaces happy.
- Remove a stray header from crypto.h
 2011-11-25 01:08:31 +01:00
George Kadianakis
7c37a664c1 Rename 'dynamic prime' to 'dynamic DH modulus'. 2011-11-25 01:00:58 +01:00
George Kadianakis
94076d9e3b Move crypto_get_stored_dynamic_prime() to crypto.c 2011-11-24 22:59:01 +01:00
George Kadianakis
2ef68980a7 Move store_dynamic_prime() to crypto.c. 2011-11-24 22:32:10 +01:00
George Kadianakis
8a726dd0dd Implement dynamic prime reading and storing to disk. 2011-11-24 22:13:44 +01:00
George Kadianakis
42bda231ee Make DynamicPrimes SIGHUP-able. 
Instead of passing the DynamicPrimes configuration option to
crypto_global_init(), generate and set a new TLS DH prime when we read
the torrc.
 2011-11-24 22:13:38 +01:00
George Kadianakis
375e55eaa2 Rename "Rakshasa" to "Dynamic Prime". 2011-11-24 22:09:15 +01:00
George Kadianakis
659381e00d Introduce the DynamicPrimes configuration option. 2011-11-24 22:09:06 +01:00
George Kadianakis
edec9409e8 Copy/Paste Jake's stuff. 
This commit copies parts of Jake's
f3bb6846975193d9a6649c31f94bda47e4014070 commit verbatim to the
current master.
 2011-11-24 22:06:50 +01:00
Nick Mathewson
fdbb9cdf74 Add a sha256 hmac function, with tests 2011-10-10 23:14:09 -04:00
Nick Mathewson
dcf69a9e12 New function to get all digests of a public key 2011-10-10 23:14:02 -04:00
Nick Mathewson
12f9c91c06 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-06-03 11:36:21 -04:00
Nick Mathewson
bbf2fee8ff Reject 128-byte keys that are not 1024-bit 
When we added the check for key size, we required that the keys be
128 bytes.  But RSA_size (which defers to BN_num_bytes) will return
128 for keys of length 1017..1024.  This patch adds a new
crypto_pk_num_bits() that returns the actual number of significant
bits in the modulus, and uses that to enforce key sizes.

Also, credit the original bug3318 in the changes file.
 2011-06-03 11:31:19 -04:00
Nick Mathewson
03ccce6d77 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-05-16 14:50:53 -04:00
Nick Mathewson
e908e3a332 Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 
Fixed trivial conflict due to headers moving into their own .h files
from or.h.

Conflicts:
	src/or/or.h
 2011-05-16 14:49:55 -04:00
Nick Mathewson
4a22046c86 squash! Add crypto_pk_check_key_public_exponent function 
Rename crypto_pk_check_key_public_exponent to crypto_pk_public_exponent_ok:
it's nice to name predicates s.t. you can tell how to interpret true
and false.
 2011-05-16 14:45:06 -04:00
Robert Ransom
d2629f78a0 Add crypto_pk_check_key_public_exponent function 2011-05-16 14:07:34 -04:00
Nick Mathewson
50c259d763 Make the DH parameter we use for TLS match the one from Apache's mod_ssl 
Our regular DH parameters that we use for circuit and rendezvous
crypto are unchanged.  This is yet another small step on the path of
protocol fingerprinting resistance.

(Backport from 0.2.2's 5ed73e3807)
 2011-02-10 15:55:06 -05:00
Nick Mathewson
912b76a1bf Merge remote branch 'origin/maint-0.2.2' 2011-02-03 13:56:37 -05:00
Nick Mathewson
c939c953ae Remove an unused function in crypto.c 2011-01-25 18:07:02 -05:00
Nick Mathewson
aaa5737a2e Merge remote branch 'origin/maint-0.2.2' 2011-01-24 17:51:52 -05:00
Nick Mathewson
5ed73e3807 Make the DH parameter we use for TLS match the one from Apache's mod_ssl 
Our regular DH parameters that we use for circuit and rendezvous
crypto are unchanged.  This is yet another small step on the path of
protocol fingerprinting resistance.
 2011-01-24 16:50:11 -05:00
Nick Mathewson
1758ef51de Merge remote branch 'origin/maint-0.2.2' 2011-01-15 13:26:02 -05:00
Nick Mathewson
1393985768 Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/or/routerparse.c
	src/or/test.c
 2011-01-15 13:25:13 -05:00
Nick Mathewson
b97b0efec8 Merge branch 'bug2352_obsize' into maint-0.2.1 2011-01-15 13:15:06 -05:00
Nick Mathewson
1b8f2ef550 Merge remote branch 'origin/maint-0.2.2' 2011-01-15 12:03:44 -05:00
Nick Mathewson
ed87738ede Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/or/config.c
	src/or/networkstatus.c
	src/or/rendcommon.c
	src/or/routerparse.c
	src/or/test.c
 2011-01-15 12:02:55 -05:00
Nick Mathewson
115782bdbe Fix a heap overflow found by debuger, and make it harder to make that mistake again 
Our public key functions assumed that they were always writing into a
large enough buffer.  In one case, they weren't.

(Incorporates fixes from sebastian)
 2011-01-15 11:49:25 -05:00
Nick Mathewson
729f404efe Add logic in routerparse to not read overlong private keys 
I am not at all sure that it is possible to trigger a bug here,
but better safe than sorry.
 2011-01-10 12:07:34 -05:00
Nick Mathewson
8730884ebe Merge remote branch 'origin/maint-0.2.2' 2011-01-03 11:53:28 -05:00
Nick Mathewson
f1de329e78 Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2 
Conflicts:
	src/common/test.h
	src/or/test.c
 2011-01-03 11:51:17 -05:00
Nick Mathewson
1a07348a50 Bump copyright statements to 2011 2011-01-03 11:50:39 -05:00
Nick Mathewson
a16ed90ec8 Document and/or fix stuff found by Sebastian in code review 
Thanks to Sebastian for his code-review of the bufferevents patch series.x
 2010-09-27 14:22:18 -04:00
Nick Mathewson
006e2e8620 Add a function to return a double in range [0,1). 2010-06-22 21:30:26 -04:00
Nick Mathewson
b006e3279f Merge remote branch 'origin/maint-0.2.1' 
Conflicts:
	src/common/test.h
	src/or/test.c
 2010-02-27 17:16:31 -05:00
Nick Mathewson
c3e63483b2 Update Tor Project copyright years 2010-02-27 17:14:21 -05:00
Sebastian Hahn
70abd843fd crypto_cipher_set_key cannot fail 
In 5e4d53d535 we made it so that
crypto_cipher_set_key cannot fail. The call will now
always succeed, to returning a boolean for success/failure makes
no sense.
 2009-10-27 04:31:23 +01:00
Karsten Loesing
d2b4b49ff0 Reduce log level for someone else sending us weak DH keys. 
See task 1114. The most plausible explanation for someone sending us weak
DH keys is that they experiment with their Tor code or implement a new Tor
client. Usually, we don't care about such events, especially not on warn
level. If we really care about someone not following the Tor protocol, we
can set ProtocolWarnings to 1.
 2009-10-25 23:47:05 -07:00
Nick Mathewson
5576a3a094 Parse detached signature documents with multiple flavors and algorithms. 2009-10-15 15:17:13 -04:00
Nick Mathewson
3b2fc659a8 Refactor consensus signature storage for multiple digests and flavors. 
This patch introduces a new type called document_signature_t to represent the
signature of a consensus document.  Now, each consensus document can have up
to one document signature per voter per digest algorithm.  Also, each
detached-signatures document can have up to one signature per <voter,
algorithm, flavor>.
 2009-10-15 15:17:13 -04:00
Nick Mathewson
8d41e6c471 Support for encoding and decoding 256-bit digests in base64 2009-10-15 15:17:12 -04:00
Nick Mathewson
cfba9c01bf Alter keygen function to generate keys of different lengths. 2009-09-29 00:53:25 -04:00
Nick Mathewson
f57883a39e Add basic support for SHA256. 
This adds an openssl 0.9.8 dependency.  Let's see if anybody cares.
 2009-08-19 19:43:54 -04:00
Martin Peck
7703b887f5 Add support for dynamic OpenSSL hardware crypto acceleration engines. 2009-05-23 16:42:44 -07:00