- Feb 22, 2019
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Dr. Matthias St. Pierre authored
Fixes #7950 It was reported that there might be a null pointer dereference in the implementation of the dasync_aes_128_cbc_hmac_sha1() cipher, because EVP_aes_128_cbc_hmac_sha1() can return a null pointer if AES-NI is not available. It took some analysis to find out that this is not an issue in practice, and these comments explain the reason to comfort further NPD hunters. Detected by GitHub user @wurongxin1987 using the Sourcebrella Pinpoint static analyzer. Reviewed-by:
Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8305)
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Eneas U de Queiroz authored
This restores the behavior of previous versions of the /dev/crypto engine, in alignment with the default implementation. Reported-by:
Gerard Looije <lglooije@hotmail.com> Signed-off-by:
Eneas U de Queiroz <cote2004-github@yahoo.com> Reviewed-by:
Paul Dale <paul.dale@oracle.com> Reviewed-by:
Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8213)
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Eneas U de Queiroz authored
Call close(cfd) before setting cfd = -1. Signed-off-by:
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Eneas U de Queiroz authored
This fixes commit c703a808 , which had a mistake in cipher_ctrl function. Move the /dev/crypto session cleanup code to its own function. Signed-off-by:
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Eneas U de Queiroz authored
The devcrypto MODULES line was missing the "engine" attribute. Signed-off-by:
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Paul Yang authored
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- Feb 21, 2019
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Kurt Roeckx authored
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Kurt Roeckx authored
doc-nits says that over needs a parameter Reviewed-by: -
Matt Caswell authored
The aes128_cbc_hmac_sha1 cipher in the dasync engine is broken. Probably by commit e38c2e85 which removed use of the "enc" variable...but not completely. Reviewed-by:
Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/8291)
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Hubert Kario authored
The option is a flag for Options, not a standalone setting. Reviewed-by:
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- Feb 20, 2019
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Markus Stockhausen authored
registers. As the AES table is already 1K aligned we can use it everywhere and speedup table address calculation by 10%. Performance numbers: decryption 16B 64B 256B 1024B 8192B ------------------------------------------------------------------- aes-256-cbc 5636.84k 6443.26k 6689.02k 6752.94k 6766.59k bef. aes-256-cbc 6200.31k 7195.71k 7504.30k 7585.11k 7599.45k aft. ------------------------------------------------------------------- aes-128-cbc 7313.85k 8653.67k 9079.55k 9188.35k 9205.08k bef. aes-128-cbc 7925.38k 9557.99k 10092.37k 10232.15k 10272.77k aft. encryption 16B 64B 256B 1024B 8192B ------------------------------------------------------------------- aes-256 cbc 6009.65k 6592.70k 6766.59k 6806.87k 6815.74k bef. aes-256 cbc 6643.93k 7388.69k 7605.33k 7657.81k 7675.90k aft. ------------------------------------------------------------------- aes-128 cbc 7862.09k 8892.48k 9214.04k 9291.78k 9311.57k bef. aes-128 cbc 8639.29k 9881.17k 10265.86k 10363.56k 10392.92k aft. Reviewed-by:
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Shane Lontis authored
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Nicola Tuveri authored
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Nicola Tuveri authored
This commit adds a simple unit test to make sure that the constant-time flag does not "leak" among BN_CTX frames: - test_ctx_consttime_flag() initializes (and later frees before returning) a BN_CTX object, then it calls in sequence test_ctx_set_ct_flag() and test_ctx_check_ct_flag() using the same BN_CTX object. The process is run twice, once with a "normal" BN_CTX_new() object, then with a BN_CTX_secure_new() one. - test_ctx_set_ct_flag() starts a frame in the given BN_CTX and sets the BN_FLG_CONSTTIME flag on some of the BIGNUMs obtained from the frame before ending it. - test_ctx_check_ct_flag() then starts a new frame and gets a number of BIGNUMs from it. In absence of leaks, none of the BIGNUMs in the new frame should have BN_FLG_CONSTTIME set. In actual BN_CTX usage inside libcrypto the leak could happen at any depth level in the BN_CTX stack, with varying results depending on the patterns of sibling trees of nested function calls sharing the same BN_CTX object, and the effect of unintended BN_FLG_CONSTTIME on the called BN_* functions. This simple unit test abstracts away this complexity and verifies that the leak does not happen between two sibling functions sharing the same BN_CTX object at the same level of nesting. Reviewed-by:
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Richard Levitte authored
Because test order can be randomized, running foo_init() as a separate test is unsafe practice. Instead, we make it possible to call it multiple times, and call it at the start of each separate test. Reviewed-by:
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- Feb 19, 2019
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Andy Polyakov authored
E.g. on MIPS64 it gives >20% improvement... Reviewed-by:
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Ionut Mihalcea authored
Reviewed-by:
Ben Kaduk <kaduk@mit.edu> Reviewed-by:
Viktor Dukhovni <viktor@openssl.org> Reviewed-by:
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Matthias Kraft authored
The AIX binder needs to be instructed that the output will have no entry point (see AIX' ld manual: -e in the Flags section; autoexp and noentry in the Binder section). Reviewed-by:
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Matt Caswell authored
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Matt Caswell authored
In TLSv1.3 it is illegal to interleave handshake records with non handshake records. Fixes #8189 Reviewed-by:
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Richard Levitte authored
There were some faults that got caught by the updated doc-nits Reviewed-by:
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Pauli authored
A randomised order causes failure due to unintentional dependencies between two of the test cases. [extended tests] Reviewed-by:
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- Feb 18, 2019
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Richard Levitte authored
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Richard Levitte authored
While we're at it, we also check for names that contain white-space, as they are invalid. Reviewed-by:
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Corinna Vinschen authored
Cygwin binaries should not enforce text mode these days, just use text mode if the underlying mount point requests it CLA: trivial Signed-off-by:
Corinna Vinschen <vinschen@redhat.com> Reviewed-by:
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Richard Levitte authored
The NAME section format is comma separated names to the left of the left of the dash, free form on the right. If we don't follow that form, programs like apropos(1) and whatis(1) can't do their job properly. Reviewed-by:
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Richard Levitte authored
- Add a bit more text about that is expected of the user or OSSL_METHOD_STOREs. - Clarify what a method and what a numeric identity are. - Change all mentions of 'implementation' and 'result' to 'method'. To clarify further: OpenSSL has used the term 'method' for structures that mainly contains function pointers. Those are the methods that are expected to be stored away in OSSL_METHOD_STOREs. In the end, however, it's the caller's responsibility to define exactly what they want to store, as long as its 'methods' are associated with a numeric identity and properties. Reviewed-by:
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Matt Caswell authored
Found by Coverity Reviewed-by:
Kurt Roeckx <kurt@roeckx.be> (Merged from https://github.com/openssl/openssl/pull/8260)
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Pauli authored
Reviewed-by:
Tim Hudson <tjh@openssl.org> (Merged from https://github.com/openssl/openssl/pull/8224)
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Pauli authored
Properties are a sequence of comma separated name=value pairs. A name without a corresponding value is assumed to be a Boolean and have the true value 'yes'. Values are either strings or numbers. Strings can be quoted either _"_ or _'_ or unquoted (with restrictions). There are no escape characters inside strings. Number are either decimal digits or '0x' followed by hexidecimal digits. Numbers are represented internally as signed sixty four bit values. Queries on properties are a sequence comma separated conditional tests. These take the form of name=value (equality test), name!=value (inequality test) or name (Boolean test for truth). Queries can be parsed, compared against a definition or merged pairwise. Reviewed-by:
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- Feb 17, 2019
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Vedran Miletić authored
CLA: trivial Reviewed-by:
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Jan Macku authored
CLA: trivial Reviewed-by:
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David Benjamin authored
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David Benjamin authored
The add/double shortcut in ecp_nistz256-x86_64.pl left one instruction point that did not unwind, and the "slow" path in AES_cbc_encrypt was not annotated correctly. For the latter, add .cfi_{remember,restore}_state support to perlasm. Next, fill in a bunch of functions that are missing no-op .cfi_startproc and .cfi_endproc blocks. libunwind cannot unwind those stack frames otherwise. Finally, work around a bug in libunwind by not encoding rflags. (rflags isn't a callee-saved register, so there's not much need to annotate it anyway.) These were found as part of ABI testing work in BoringSSL. Reviewed-by: -
Billy Brumley authored
Reviewed-by:
Nicola Tuveri <nic.tuv@gmail.com> (Merged from https://github.com/openssl/openssl/pull/8254)
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Billy Brumley authored
This commit adds a dedicated function in `EC_METHOD` to access a modular field inversion implementation suitable for the specifics of the implemented curve, featuring SCA countermeasures. The new pointer is defined as: `int (*field_inv)(const EC_GROUP*, BIGNUM *r, const BIGNUM *a, BN_CTX*)` and computes the multiplicative inverse of `a` in the underlying field, storing the result in `r`. Three implementations are included, each including specific SCA countermeasures: - `ec_GFp_simple_field_inv()`, featuring SCA hardening through blinding. - `ec_GFp_mont_field_inv()`, featuring SCA hardening through Fermat's Little Theorem (FLT) inversion. - `ec_GF2m_simple_field_inv()`, that uses `BN_GF2m_mod_inv()` which already features SCA hardening through blinding. From a security point of view, this also helps addressing a leakage previously affecting conversions from projective to affine coordinates. This commit also adds a new error reason code (i.e., `EC_R_CANNOT_INVERT`) to improve consistency between the three implementations as all of them could fail for the same reason but through different code paths resulting in inconsistent error stack states. Co-authored-by:
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- Feb 16, 2019
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Andy Polyakov authored
"Windows friendliness" means a) unified PIC-ification, unified across all platforms; b) unified commantary delimiter; c) explicit ldur/stur, as Visual Studio assembler can't automatically encode ldr/str as ldur/stur when needed. Reviewed-by:
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Andy Polyakov authored
"Windows friendliness" means a) flipping .thumb and .text directives, b) always generate Thumb-2 code when asked(*); c) Windows-specific references to external OPENSSL_armcap_P. (*) so far *some* modules were compiled as .code 32 even if Thumb-2 was targeted. It works at hardware level because processor can alternate between the modes with no overhead. But clang --target=arm-windows's builtin assembler just refuses to compile .code 32... Reviewed-by:
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Patrick Steuer authored
Signed-off-by:
Patrick Steuer <patrick.steuer@de.ibm.com> Reviewed-by:
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- Feb 15, 2019
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Richard Levitte authored
The context builds on CRYPTO_EX_DATA, allowing it to be dynamically extended with new data from the different parts of libcrypto. Reviewed-by:
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