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Demonstrate a bug with AES CFB 128 for certain key sizes introduced
with the Erlang 19.0 release. The code in the block_crypt_nif function
in the crypto.c source file incorrectly calls aes_cfb_8_crypt when the
specified cipher is aes_cfb8 or aes_cfb128 and the key size is 24 or
32. The aes_cfb_8_crypt function calls the AES_cfb8_encrypt function
from the openssl interface, but this is incorrect when the cipher is
aes_cfb128.
Unfortunately the test cases in the crypto test suite are insufficient
to detect an issue like this because it exercises the encryption and
decryption roundtrip using the same incorrect underlying function. The
problem was observed when trying to update an application to Erlang 19
that attempted to decrypt data that was encrypted using aes_cfb128 by
another source. In this commit I altered the crypto test suite to
provide a demonstration of this problem.
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Fix https://bugs.erlang.org/browse/ERL-336.
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OpenSSL has deprecated the function RAND_pseudo_bytes used by
crypto:rand_bytes/1, so this function is now deprecated in OTP too.
rand_bytes/3 also used this function, but was not documented
so we can remove it right away.
This commit also removes the fallback in generate_key to use
rand_bytes/1 if strong_rand_bytes/1 throws low entropy.
This is a potential incompatibility but we think it is desirable
as crypto should provide cryptographically secure functions.
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This commit enables AES-GCM encryption/decryption to change its tag
length between 1 to 16 bytes.
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and deprecate aes_cbc128 and aes_cbc256 in favor of aes_cbc.
This commit is pr 832 squashed, rebased and made work on master
https://github.com/erlang/otp/pull/832/commits
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Using the generic EVP_* API makes it possible to unify
algorithm-specific nif functions to a single generic
function. Effectively the same change that took place on the Erlang
API in R16B01 is now applied to the C code.
The old implementation using the low-level API is kept
for compiling against old OpenSSL,
as parts of the EVP API were introduced in OpenSSL 1.0.0.
There are various minor improvements as well:
- supported algorithms are now provided by the nif code (not a mix of
the C and Erlang code)
- remove unnecessary variables and macro definitions
Most of the changes in this commit comes from Dániel Szoboszlay
https://github.com/dszoboszlay/otp/commit/07f7056f955b324df4ace
which is part of his 'fips' branch.
Now also rebased on master branch.
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by removing the spec. It's an internal function.
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* andreaTP/added-aes-ecb-to-crypto/OTP-12403:
aligned implementation following last specs
finally fixed docs
fixed incorrect tag
proposal of documentation
fixes and tests
add aes ecb to crypto library
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enhance generate_key to calculate ECC public keys from private keys
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This adds the aes_cfb8 cypher type (and associated tests and
documentation) to the crypto module.
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Most dependencies introduced are exactly the dependencies to other
applications found by xref. That is, there might be real dependencies
missing. There might also be pure debug dependencies listed that
probably should be removed. Each application has to be manually
inspected in order to ensure that all real dependencies are listed.
All dependencies introduced are to application versions used in
OTP 17.0. This since the previously used version scheme wasn't
designed for this, and in order to minimize the work of introducing
the dependencies.
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* lukas/ose/master/OTP-11334: (71 commits)
erts: Fix unix efile assert
ose: Use -O2 when building
ose: Expand OSE docs
ose: Add dummy ttsl driver
ose: Cleanup cleanup of mutex selection defines
ose: Polish mmap configure checks
ose: Add ose specific x-compile flags
ose: Updating fd_driver and spawn_driver for OSE
ose: Updating event and signal API for OSE
ose: Cleanup of mutex selection defines
win32: Compile erl_log.exe
ose: Remove uneccesary define
ose: Fix ssl configure test for osx
erts: Fix sys_msg_dispatcher assert
ose: Fix broken doc links
ose: Thread priorities configurable from lmconf
ose: Yielding the cpu is done "the OSE" way
ose: Start using ppdata for tse key
ose: Do not use spinlocks on OSE
ose: Fix support for crypto
...
Conflicts:
lib/crypto/c_src/crypto.c
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To enable it you have to modify the OSESSL variable in the
ose xcomp file.
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As discussed in issue #240 *all* OTP library applications use the '.*'
wildcard as up and down version. This makes library applications
always up- and downgradeable. Using the wildcard version obsoletes
all maintenance tasks regarding library applications' appup files.
Additionally, it prevents upgrade problems caused by automatically
included application dependencies when using reltool to create
releases. Missing copyright headers are now consistently present.
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and make it into a pure library application.
The processes where a legacy from the time when crypto was
implemented with a driver.
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Newer OpenSSL versions allow to selectively disable GF2m elliptic curves.
Selectively enable GF2m curves is support for them is available.
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RFC-5649, Section 1, documents the advantages that these curves
might have over others (ANSI, SEC1/2)
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Decouple eliptic curve definition from OpenSSL and define them in
Erlang.
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* sverk/yb/aes_ige_crypt:
crypto: Update supports/0 for des3_cbf and aes_ige256
crypto: Throw notsup for AES IGE if openssl older than 0.9.8c
crypto: Add IGE mode for AES
OTP-11522
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The resource was not needed as it was never kept between external
crypto calls.
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* ia/public_key/crypto/prepare-for-release:
public_key & ssl: Add ASN-1 dependency
crypto & public_key: prepare for release
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Also fix bugs found by new tests
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to harmonize with next_iv/2
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to conform with the return value of the other types.
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