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Conflicts:
lib/crypto/c_src/crypto.c
lib/crypto/src/crypto.erl
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This commit reactivates chacha20_poly1305 and fixes the imprementation
for the released OpenSSL 1.1.0 or later.
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In June 2014, fb9d36c2c7c1 added support for the AES GCM ciphers
(ChaCha/Poly1305) based on a development version of OpenSSL 1.1.0.
The code is seriously broken when used with the released OpenSSL 1.1.0.
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Conflicts:
lib/crypto/c_src/crypto.c
lib/ssl/src/ssl_cipher.erl
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Renamed the init function as the return semantics are changed.
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* RoadRunnr/crypto/no-rc4/PR-1169/OTP-13896:
disable RC4 in SSL when crypto doesn't support it
Fix compilation when OpenSSL doesn't support RC4
Conflicts:
lib/crypto/c_src/crypto.c
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FIPS mode support needs to be enabled at compile time, by configuring
Erlang/OTP with --enable-fips option. In FIPS mode the non-FIPS
algorithms are disabled and raise error notsup.
The supported protocols list is properly updated in FIPS mode to
advertise only the enabled protocols.
FIPS mode is off by default even if Erlang/OTP was built with FIPS
support. It needs to be turned on at runtime.
The official approach is to set the fips_mode application environment
parameter of the crypto application to true. This would turn FIPS mode
on when the NIF is loaded and would prevent loading the module on
error.
Another method is provided via the crypto:enable_fips_mode/1
function, but it is not recommended to be used in production, as it
won't prevent the use of the crypto module in case of an error, and
would risk OpenSSL crashing the emulator. It is very useful for test
suites however that need to check both validated and non-validated
functionality.
This commit is based on commit
00b3a04d17a653b4abddeebd6dd8a2c38df532d0.
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When OpenSSL has been configured with the "no-rc4" option, the header
file rc4.h doesn't exist, and neither does the rc4 functions.
Let's handle those by checking whether OPENSSL_NO_RC4 is defined.
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Anywhere but the beam sources we shouldn't #include "erl_nif.h", because
what "erl_nif.h" does is: (1) fail to find it outside of -I dirs, (2)
then treat it as if it was written like <erl_nif.h>. Using <erl_nif.h>
skips (1).
More information can be found in 6.10.2 of the C standard.
Because the examples use "erl_nif.h", NIF projects in the Erlang
ecosystem copy this verbatim and make the same mistake.
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When OpenSSL has been configured with the "no-rc2" option, the header
file rc2.h doesn't exist, and neither does the function EVP_rc2_cbc.
Let's handle those by checking whether OPENSSL_NO_RC2 is defined.
Also update pbe_SUITE, which uses RC2-CBC in one of the tests.
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Also correct algo_cipher[] size since it was one to small.
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Patch suggestion by Michae in ERL-203 at bugs.erlang.org.
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* gotthardp/crypto/add-cmac/ERL-82/PR-1138/OTP-13779:
Skip the cmac test cases on older OpenSSL
Added a reference to cmac RFC in the description part of the man page
Fix building crypto/cmac_nif on 64-bit machines.
crypto:cmac calculating the Cipher-based Message Authentication Code
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The ERL-82 issue requests a way to calculate a CMAC in Erlang. The
AES128 CMAC is standartized in RFC 4493 and used e.g. for message
authentication in the LoRaWAN networks.
The CMAC is implemented by OpenSSL since v1.0.1, but as @IngelaAndin
stated in response to the ERL-82, the current crypto implementation
does not include functions that call those OpenSSL cryptolib functions.
This commit introduces a new function `crypto:cmac` that calls
the corresponding OpenSSL functions and calculates the CMAC.
Only the cmac_nif is implemented. The incremental functions (init,
update, final) are not provided because the current OpenSSL does
not allow custom memory allocators like `enif_alloc_resource`.
The Erlang user guide states that at least OpenSSL 0.9.8 is required,
so I added few #ifdefs so the code is compatible with all versions.
However, the OpenSSL pages say that the pre-1.0.1 versions (0.9.8 and
1.0.0) are no longer maintained. Even the 1.0.1 will be retired by
Dec 2016. Hence I believe that adding a 1.0.1-only function like CMAC
should be OK.
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to make it easier to read and construct version checks.
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Same fix as was done for EVP in f4f588683dce36c447017.
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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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* henrik/update-copyrightyear:
update copyright-year
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by not repeating calls to get static EVP_MD and EVP_CIPHER objects.
Also compressed the structs with unions
for better caching during search.
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and not badarg.
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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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The FIPS-enabled OpenSSL on RHEL disallows the use of < 256 bit prime
fields (like secp128r1 or secp160k1), and the EC_GROUP_new_cuve_GFp
call would return a NULL pointer for such fields. Not checking for
this failure could result in a segfault in the NIF code.
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OTP-13207
* sverk/crypto/aes-ecb-192-bit:
crypto: Support 192-bit keys for AES ECB
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OTP-13206
* sverk/crypto/aes-cbc-192-bit:
crypto: Support 192-bit keys for AES CBC
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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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for the EVP_CIPHER_CTX.
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This enables the use of hardware acceleration on newer Intel CPUs (AES-NI).
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that make EVP_CIPHER_iv_length() return non-zero value.
Seems to be fixed in 0.9.8m.
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causing OpenSSL 0.9.8h to crash with
evp_enc.c(282): OpenSSL internal error, assertion failed: inl > 0
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