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An attempt to enable the use of openssl 0.9.7
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Facts:
crypto nif-lib registers callback functions that openssl uses
for memory management and thread synchronization. The callback
functions can only be set once, openssl does not allow changing the
callback functions.
Problem:
If openssl is dynamicly linked to crypto, you might get s scenario
where the crypto lib is unloaded while leaving openssl loaded
with its old pointers to the unloaded crypto code intact.
If crypto is then reloaded (by init:restart() for example), the crypto
nif-lib might get relocated at a different address. crypto calls
openssl which in turn calls the old invalid callback functions...kaboom.
Solution:
Break apart the callback functions into a separate dynamic lib that
crypto loads with dlopen. When crypto is unloaded the callback lib is
left in place to be reused if/when crypto is loaded again.
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Replace _hash functions with {digest,_} argument
to existing sign/verify functions.
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OTP-10106
OTP-10107
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No test and doc
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* pg/des-cfb-functions:
[crypto] Remove swedish characters from test code
[crypto] Add DES and Triple DES cipher feedback (CFB) mode functions
OTP-9640
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This reverts commit 82897cc8f399fab832148711b586215c9a3f7af1.
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* cr/md2-With-RSA-Encryption:
Document crypto:sha_mac_96/2 to compute an SHA MAC, not MD5
Support md2WithRSAEncryption certificates in public_key
Support 'md2' hash in crypto:rsa_sign/3 and crypto:rsa_verify/4
OTP-9554
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Also let it throw badarg if 'Hi' is not larger than 'Lo'.
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The current crypto module implementations require all of the data
being encrypted or authenticated to be in memory at one time. When
trying to encrypt or authenticate a large file (on order of GBs),
this is problematic.
The implementation of AES CTR uses the same underlying implementation
as aes_ctr_[en|de]crypt, but hands the state back to the client
after every operation.
The HMAC implementation differs from the previous implementations of
sha_mac and md5_mac. The old implementations did not utilize the
OpenSSL HMAC implementation. In order to ensure that I didn't
implement something incorrectly, I chose to use the OpenSSL HMAC
implementation directly, since it handles streaming as well. This
has the added side benefit of allowing other hash functions to be
used as desired (for instances, I added support for ripemd160
hashing).
While I haven't done this, it seems like the existing md5_mac and
sha_mac functions could either be depricated or redefined in terms
of the new hmac_ functions.
Update AES CTR and HMAC streaming with code review input
Ensure that memcpy operations in hmac operations are being size
checked properly. Rename aes_ctr_XXX_with_state to
aes_ctr_stream_XXX. Remove redundant hmac_init_[sha|md5|ripemd160]
functions. Fix documentation for hmac_final_n.
Fix possible error using negative value as a marker on an unsigned int
Now, use a separate marker and add a unit test to test specifically for
a case where HashLen is larger than the underlying resultant hash.
Revert "Fix possible error using negative value as a marker on an unsigned int"
This reverts commit 59cb177aa96444c0fd3ace6d01f7b8a70dd69cc9.
Resolve buffer overflow posibility on an unsigned int.
Change handling the marker for HashLen to use the fact that a second
parameter that has to be the the HashLen was passed. Also, ensure
that HashLen parameter is positive.
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Added some checks in crypto.erl and crypto.c.
Changed ssh_bits to use strong_rand_mpint.
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Also adds documentation and unit tests.
Thanks to Geoff Cant.
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The NIF library for crypto can now be built for valgrind
and/or debug as separate NIF libraries that will be
automatically loaded if the runtime system has been built
with a matching build type.
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Changed return types from "binary" to "binary()"
for md5_mac, md5_mac_96, sha_mac and sha_mac_96.
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New variants of crypto:dss_sign and crypto:dss_verify with an extra
argument to control how the digest is calculated.
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crypto application changed to use NIFs instead of driver.
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* au/crypto:
Add missing docs for crypto:md4/1
Add des_ecb_encrypt/2 and des_ecb_decrypt/2 to crypto module
OTP-8551 au/crypto
des_ecb_encrypt/2 and des_ecb_decrypt/2 has been added to the crypto
module. The crypto:md4/1 function has been documented.
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My previous patch added CFB mode. This patch adds all remaining
Blowfish modes. According to the man page
http://www.fifi.org/cgi-bin/man2html/usr/share/man/man3/blowfish.3ssl.gz
these are available in all versions of OpenSSL.
[ Squashed in elimination of signed/unsigned compiler warnings. /bg ]
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