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When casting the certificate public key in generateClientKeyExchange,
check the type is appropriate. This prevents a panic when a server
agrees to a RSA based key exchange, but then sends an ECDSA (or
other) certificate.
Updates #47143
Fixes #47145
Fixes CVE-2021-34558
Thanks to Imre Rad for reporting this issue.
Change-Id: Iabccacca6052769a605cccefa1216a9f7b7f6aea
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1116723
Reviewed-by: Filippo Valsorda <valsorda@google.com>
Reviewed-by: Katie Hockman <katiehockman@google.com>
Reviewed-on: https://go-review.googlesource.com/c/go/+/334029
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
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Removes the KeyUsage field that was missed in the rollback in
CL 281235.
Also updates CreateCertificateRequest to reflect that these fields
were removed.
For #43407.
Updates #43477.
Updates #37172.
Change-Id: I6244aed4a3ef3c2460c38af5511e5c2e82546179
Reviewed-on: https://go-review.googlesource.com/c/go/+/287392
Trust: Alexander Rakoczy <alex@golang.org>
Trust: Roland Shoemaker <roland@golang.org>
Trust: Dmitri Shuralyov <dmitshur@golang.org>
Run-TryBot: Alexander Rakoczy <alex@golang.org>
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Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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This patch fixes two independent bugs in p224Contract, the function that
performs the final complete reduction in the P-224 field. Incorrect
outputs due to these bugs were observable from a high-level
P224().ScalarMult() call.
The first bug was in the calculation of out3GT. That mask was supposed
to be all ones if the third limb of the value is greater than the third
limb of P (out[3] > 0xffff000). Instead, it was also set if they are
equal. That meant that if the third limb was equal, the value was always
considered greater than or equal to P, even when the three bottom limbs
were all zero. There is exactly one affected value, P - 1, which would
trigger the subtraction by P even if it's lower than P already.
The second bug was more easily hit, and is the one that caused the known
high-level incorrect output: after the conditional subtraction by P, a
potential underflow of the lowest limb was not handled. Any values that
trigger the subtraction by P (values between P and 2^224-1, and P - 1
due to the bug above) but have a zero lowest limb would produce invalid
outputs. Those conditions apply to the intermediate representation
before the subtraction, so they are hard to trace to precise inputs.
This patch also adds a test suite for the P-224 field arithmetic,
including a custom fuzzer that automatically explores potential edge
cases by combining limb values that have various meanings in the code.
contractMatchesBigInt in TestP224Contract finds the second bug in less
than a second without being tailored to it, and could eventually find
the first one too by combining 0, (1 << 28) - 1, and the difference of
(1 << 28) and (1 << 12).
The incorrect P224().ScalarMult() output was found by the
elliptic-curve-differential-fuzzer project running on OSS-Fuzz and
reported by Philippe Antoine (Catena cyber).
Fixes CVE-2021-3114
Fixes #43786
Change-Id: I50176602d544de3da854270d66a293bcaca57ad7
Reviewed-on: https://go-review.googlesource.com/c/go/+/284779
Run-TryBot: Roland Shoemaker <roland@golang.org>
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Trust: Ian Lance Taylor <iant@golang.org>
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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There's on need to expose this to the frozen syscall package, and it
also doesn't need to be unsafe. So we move it into internal/syscall and
have the generator make a safer function signature.
Fixes #43704.
Change-Id: Iccae69dc273a0aa97ee6846eb537f1dc1412f2de
Reviewed-on: https://go-review.googlesource.com/c/go/+/283992
Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com>
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Reviewed-by: Austin Clements <austin@google.com>
Trust: Jason A. Donenfeld <Jason@zx2c4.com>
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Updates #38843
Change-Id: If76844e1caf23f98d814de89f77610de59d96a34
Reviewed-on: https://go-review.googlesource.com/c/go/+/284134
Trust: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
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In general, we don't want to encourage reading them from CSRs, and
applications that really want to can parse the Extensions field.
Note that this also fixes a bug where the error of
parseKeyUsageExtension was not handled in parseCertificateRequest.
Fixes #43477
Updates #37172
Change-Id: Ia5707b0e23cecc0aed57e419a1ca25e26eea6bbe
Reviewed-on: https://go-review.googlesource.com/c/go/+/281235
Trust: Filippo Valsorda <filippo@golang.org>
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This reverts CL 246338.
Reason for revert: waiting for 1.17 release cycle
Updates #32406
Change-Id: I074379039041e086c62271d689b4b7f442281663
Reviewed-on: https://go-review.googlesource.com/c/go/+/269697
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os.ReadDir is a replacement for ioutil.ReadDir that returns
a slice of fs.DirEntry instead of fs.FileInfo, meaning it is the
more efficient form.
This CL updates call sites throughout the Go source tree
wherever possible. As usual, code built using the Go 1.4
bootstrap toolchain is not included. There is also a use in
go/build that appears in the public API and can't be changed,
at least not without additional changes.
Fixes #42026.
Change-Id: Icfc9dd52c6045020f6830e22c72128499462d561
Reviewed-on: https://go-review.googlesource.com/c/go/+/266366
Trust: Russ Cox <rsc@golang.org>
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As part of #42026, these helpers from io/ioutil were moved to os.
(ioutil.TempFile and TempDir became os.CreateTemp and MkdirTemp.)
Update the Go tree to use the preferred names.
As usual, code compiled with the Go 1.4 bootstrap toolchain
and code vendored from other sources is excluded.
ReadDir changes are in a separate CL, because they are not a
simple search and replace.
For #42026.
Change-Id: If318df0216d57e95ea0c4093b89f65e5b0ababb3
Reviewed-on: https://go-review.googlesource.com/c/go/+/266365
Trust: Russ Cox <rsc@golang.org>
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Change-Id: I8133762d53d9e5d3cc13e0f97b9679a3248a7f0f
Reviewed-on: https://go-review.googlesource.com/c/go/+/273087
Trust: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
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When either the server or client are lacking hardware support for
AES-GCM ciphers, indicated by the server lacking the relevant
instructions and by the client not putting AES-GCM ciphers at the top
of its preference list, reorder the preference list to de-prioritize
AES-GCM based ciphers when they are adjacent to other AEAD ciphers.
Also updates a number of recorded openssl TLS tests which previously
only specified TLS 1.2 cipher preferences (using -cipher), but not
TLS 1.3 cipher preferences (using -ciphersuites), to specify both
preferences, making these tests more predictable.
Fixes #41181.
Change-Id: Ied896c96c095481e755aaff9ff0746fb4cb9568e
Reviewed-on: https://go-review.googlesource.com/c/go/+/262857
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This code was preserved just to do side-by-side testing while
transitioning to the Go implementation. There haven't been mismatch
issues, so drop the cgo code, which was making it hard to improve the Go
code without diverging.
Change-Id: I2a23039c31a46e88b94250aafbc98d4ea8daf22f
Reviewed-on: https://go-review.googlesource.com/c/go/+/232397
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This is a SHALL in RFC 7301, Section 3.2.
Also some more cleanup after NPN, which worked the other way around
(with the possibility that the client could pick a protocol the server
did not suggest).
Change-Id: I83cc43ca1b3c686dfece8315436441c077065d82
Reviewed-on: https://go-review.googlesource.com/c/go/+/239748
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Since we dropped SSLv3, there is only one MAC scheme, and it doesn't
need any state beyond a keyed HMAC, so we can replace the macFunction
with the hash.Hash it wraps.
Pointed out by mtp@.
Change-Id: I5545be0e6ccb34a3055fad7f6cb5f628ff748e9f
Reviewed-on: https://go-review.googlesource.com/c/go/+/251859
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Adds the (*tls.Conn).HandshakeContext method. This allows
us to pass the context provided down the call stack to
eventually reach the tls.ClientHelloInfo and
tls.CertificateRequestInfo structs.
These contexts are exposed to the user as read-only via Context()
methods.
This allows users of (*tls.Config).GetCertificate and
(*tls.Config).GetClientCertificate to use the context for
request scoped parameters and cancellation.
Replace uses of (*tls.Conn).Handshake with (*tls.Conn).HandshakeContext
where appropriate, to propagate existing contexts.
Fixes #32406
Change-Id: I33c228904fe82dcf57683b63627497d3eb841ff2
Reviewed-on: https://go-review.googlesource.com/c/go/+/246338
Run-TryBot: Filippo Valsorda <filippo@golang.org>
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Previously windows only returned the certificate-chain with the highest quality.
This change makes it so chains with a potentially lower quality
originating from other root certificates are also returned by verify.
Tests in verify_test flagged with systemLax are now allowed to pass if the system returns additional chains
Fixes #40604
Change-Id: I66edc233219f581039d47a15f2200ff627154691
Reviewed-on: https://go-review.googlesource.com/c/go/+/257257
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Trust: Tobias Klauser <tobias.klauser@gmail.com>
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Adds the following additional convenience fields to CertificateRequest:
* KeyUsage
* ExtKeyUsage
* UnknownExtKeyUsage
* IsCA
* MaxPathLen
* BasicConstraintsValid
* MaxPathLenZero
* SubjectKeyId
* PolicyIdentifier
These fields are parsed during ParseCertificateRequest and marshalled
during CreateCertificateRequest. The parsing/marshalling code is
factored out of parseCertificate and buildExtensions (which is renamed
buildCertExtensions). This has the side effect of making these methods
somewhat easier to read.
Documentation for the fields is copied from Certificate.
Example CSR created with all of these fields parsed with openssl:
$ openssl req -in ~/test-csr.pem -noout -text
Certificate Request:
Data:
Version: 0 (0x0)
Subject:
Subject Public Key Info:
Public Key Algorithm: id-ecPublicKey
Public-Key: (256 bit)
pub:
04:a4:cb:64:35:8e:dd:8c:2b:a6:f1:aa:39:d1:be:
d0:b9:95:1e:59:19:82:76:28:d3:85:1b:c6:88:62:
e1:15:33:be:26:18:80:14:fe:f4:d4:91:66:4e:a4:
a4:47:bd:53:db:f7:2e:e3:31:ce:5f:86:cb:92:59:
93:bb:d0:7f:a2
ASN1 OID: prime256v1
NIST CURVE: P-256
Attributes:
Requested Extensions:
X509v3 Key Usage: critical
Certificate Sign
X509v3 Extended Key Usage:
Any Extended Key Usage, 1.2.3
X509v3 Basic Constraints: critical
CA:TRUE, pathlen:0
X509v3 Subject Key Identifier:
01:02:03
X509v3 Certificate Policies:
Policy: 1.2.3
Signature Algorithm: ecdsa-with-SHA256
30:45:02:21:00:a7:88:e5:96:d4:ad:ae:24:26:ab:5f:15:6a:
3f:22:6d:0e:a6:ba:15:64:8d:78:34:f4:c4:7d:ac:37:b0:2a:
84:02:20:68:44:f0:8e:8a:1b:c1:68:be:14:a6:e3:83:41:fd:
2d:cc:00:aa:bc:50:f6:50:56:12:9e:a4:09:84:5c:bf:c1
Fixes #37172
Change-Id: Ife79d01e203827ef0ac3c787aa13c00d0751a1ec
Reviewed-on: https://go-review.googlesource.com/c/go/+/233163
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Extended the sorting logic to be stable even when there are two roots
with the same name and notBefore timestamp, like the GlobalSign ones.
Updates #38843
Change-Id: Ie4db0bb8b6a8b5ffbb7390b6bd527fc0c3badaca
Reviewed-on: https://go-review.googlesource.com/c/go/+/266677
Reviewed-by: Katie Hockman <katie@golang.org>
Trust: Filippo Valsorda <filippo@golang.org>
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Change-Id: I18d5b9fc392a6a52fbdd240254d6d9db838073a4
Reviewed-on: https://go-review.googlesource.com/c/go/+/266540
Trust: Filippo Valsorda <filippo@golang.org>
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This fell through the cracks from the CL 229917 comments.
Change-Id: I22584107f1e8111f9c523f45307dd50e1e5f4b8f
Reviewed-on: https://go-review.googlesource.com/c/go/+/268339
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Derived from CL 263277, which includes benchmarks.
Fixes #42035
Co-authored-by: Filippo Valsorda <filippo@golang.org>
Change-Id: I5f28673f95d4568b7d13dbc20e9d4b48d481a93d
Reviewed-on: https://go-review.googlesource.com/c/go/+/267957
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Reviewed-by: Roberto Clapis <roberto@golang.org>
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Instead of parsing the PEM files and then storing the *Certificate
values forever, still parse them to see if they're valid and pick out
some fields, but then only store the decoded pem.Block.Bytes until
that cert is first needed.
Saves about 500K of memory on my (Debian stable) machine after doing a
tls.Dial or calling x509.SystemCertPool.
A more aggressive version of this is still possible: we can not keep
the pem.Block.Bytes in memory either, and re-read them from disk when
necessary. But dealing with files disappearing and even large
multi-cert PEM files changing (with offsets sliding around) made this
conservative version attractive. It doesn't change the
slurp-roots-on-startup semantics. It just does so with less memory
retained.
Change-Id: I3aea333f4749ae3b0026042ec3ff7ac015c72204
Reviewed-on: https://go-review.googlesource.com/c/go/+/230025
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This will allow building CertPools that consume less memory. (Most
certs are never accessed. Different users/programs access different
ones, but not many.)
This CL only adds the new internal mechanism (and uses it for the
old AddCert) but does not modify any existing root pool behavior.
(That is, the default Unix roots are still all slurped into memory as
of this CL)
Change-Id: Ib3a42e4050627b5e34413c595d8ced839c7bfa14
Reviewed-on: https://go-review.googlesource.com/c/go/+/229917
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cpu: HiSilicon(R) Kirin 970 2.4GHz
name old time/op new time/op delta
XORBytes/8Bytes 39.8ns ± 0% 17.3ns ± 0% -56.53% (p=0.000 n=10+10)
XORBytes/128Bytes 376ns ± 0% 28ns ± 0% -92.63% (p=0.000 n=10+8)
XORBytes/2048Bytes 5.67µs ± 0% 0.22µs ± 0% -96.03% (p=0.000 n=10+10)
XORBytes/32768Bytes 90.3µs ± 0% 3.5µs ± 0% -96.12% (p=0.000 n=10+10)
AESGCMSeal1K 853ns ± 0% 853ns ± 0% ~ (all equal)
AESGCMOpen1K 876ns ± 0% 874ns ± 0% -0.23% (p=0.000 n=10+10)
AESGCMSign8K 3.09µs ± 0% 3.08µs ± 0% -0.34% (p=0.000 n=10+9)
AESGCMSeal8K 5.87µs ± 0% 5.87µs ± 0% +0.01% (p=0.008 n=10+8)
AESGCMOpen8K 5.82µs ± 0% 5.82µs ± 0% +0.02% (p=0.037 n=10+10)
AESCFBEncrypt1K 7.05µs ± 0% 4.27µs ± 0% -39.38% (p=0.000 n=10+10)
AESCFBDecrypt1K 7.12µs ± 0% 4.30µs ± 0% -39.54% (p=0.000 n=10+9)
AESCFBDecrypt8K 56.7µs ± 0% 34.1µs ± 0% -39.82% (p=0.000 n=10+10)
AESOFB1K 5.20µs ± 0% 2.54µs ± 0% -51.07% (p=0.000 n=10+10)
AESCTR1K 4.96µs ± 0% 2.30µs ± 0% -53.62% (p=0.000 n=9+10)
AESCTR8K 39.5µs ± 0% 18.2µs ± 0% -53.98% (p=0.000 n=8+10)
AESCBCEncrypt1K 5.81µs ± 0% 3.07µs ± 0% -47.13% (p=0.000 n=10+8)
AESCBCDecrypt1K 5.83µs ± 0% 3.10µs ± 0% -46.84% (p=0.000 n=10+8)
name old speed new speed delta
XORBytes/8Bytes 201MB/s ± 0% 461MB/s ± 0% +129.80% (p=0.000 n=6+10)
XORBytes/128Bytes 340MB/s ± 0% 4625MB/s ± 0% +1259.91% (p=0.000 n=8+10)
XORBytes/2048Bytes 361MB/s ± 0% 9088MB/s ± 0% +2414.23% (p=0.000 n=8+10)
XORBytes/32768Bytes 363MB/s ± 0% 9350MB/s ± 0% +2477.44% (p=0.000 n=10+10)
AESGCMSeal1K 1.20GB/s ± 0% 1.20GB/s ± 0% -0.02% (p=0.041 n=10+10)
AESGCMOpen1K 1.17GB/s ± 0% 1.17GB/s ± 0% +0.20% (p=0.000 n=10+10)
AESGCMSign8K 2.65GB/s ± 0% 2.66GB/s ± 0% +0.35% (p=0.000 n=10+9)
AESGCMSeal8K 1.40GB/s ± 0% 1.40GB/s ± 0% -0.01% (p=0.000 n=10+7)
AESGCMOpen8K 1.41GB/s ± 0% 1.41GB/s ± 0% -0.03% (p=0.022 n=10+10)
AESCFBEncrypt1K 145MB/s ± 0% 238MB/s ± 0% +64.95% (p=0.000 n=10+10)
AESCFBDecrypt1K 143MB/s ± 0% 237MB/s ± 0% +65.39% (p=0.000 n=10+9)
AESCFBDecrypt8K 144MB/s ± 0% 240MB/s ± 0% +66.15% (p=0.000 n=10+10)
AESOFB1K 196MB/s ± 0% 401MB/s ± 0% +104.35% (p=0.000 n=9+10)
AESCTR1K 205MB/s ± 0% 443MB/s ± 0% +115.57% (p=0.000 n=7+10)
AESCTR8K 207MB/s ± 0% 450MB/s ± 0% +117.27% (p=0.000 n=10+10)
AESCBCEncrypt1K 176MB/s ± 0% 334MB/s ± 0% +89.15% (p=0.000 n=10+8)
AESCBCDecrypt1K 176MB/s ± 0% 330MB/s ± 0% +88.08% (p=0.000 n=10+9)
Updates #42010
Change-Id: I75e6d66fd0070e184d93b020c55a7580c713647c
Reviewed-on: https://go-review.googlesource.com/c/go/+/142537
Reviewed-by: Meng Zhuo <mzh@golangcn.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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This change also documents the need to set a Deadline before
calling Read or Write.
Fixes #31224
Change-Id: I89d6fe3ecb0a0076b4c61765f61c88056f951406
Reviewed-on: https://go-review.googlesource.com/c/go/+/266037
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This change modifies Go to add the Unwrap method to SystemRootsError
Updates #30322
Change-Id: Ibe63d1d0bc832fc0607f09053908d55275a6f350
GitHub-Last-Rev: 9a95bc66019d25f02a0a5f92a87e9405a52802e4
GitHub-Pull-Request: golang/go#41981
Reviewed-on: https://go-review.googlesource.com/c/go/+/262343
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
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To educate future readers.
Change-Id: I1ef79178b6997cc96ca066c91b9fec822478674b
Reviewed-on: https://go-review.googlesource.com/c/go/+/266301
Reviewed-by: Katie Hockman <katie@golang.org>
Reviewed-by: Emmanuel Odeke <emmanuel@orijtech.com>
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This reverts CL 250497. It also moves all blank identifier imports below the rest of the imports for clarity.
Reason for revert: The blank identifier import was intentional to show that it's needed for its registration side effect. The duplicate import should stay since it communicates that the side-effect is important to tools and to future developers updating this file.
Change-Id: I626e6329db50f47453aa71085a05d21bf6efe0ac
Reviewed-on: https://go-review.googlesource.com/c/go/+/265078
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Fixes #34023
Change-Id: Ib7552a8873a79a91e8d971f906c6d7283da7a80c
Reviewed-on: https://go-review.googlesource.com/c/go/+/264027
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
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CryptGenRandom appears to be unfavorable these days, whereas the classic
RtlGenRandom is still going strong.
This commit also moves the warnBlocked function into rand_unix, rather
than rand, because it's now only used on unix.
Fixes #33542
Change-Id: I5c02a5917572f54079d627972401efb6e1ce4057
Reviewed-on: https://go-review.googlesource.com/c/go/+/210057
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It's unfortunate that we don't implement PKCS#8 encryption (#8860)
so we can't recommend an alternative but PEM encryption is so broken
that it's worth deprecating outright.
Fixes #41949
Fixes #32777
Change-Id: Ieb46444662adec108d0de3550b693a50545c2344
Reviewed-on: https://go-review.googlesource.com/c/go/+/264159
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This prevents the custom-built version of openssl prefering the system
libraries over the ones compiled with the specified (weak crypto)
options necessary to generate the updates. This difference can lead to
confusing failures when updating the tests.
Fixes #31809
Change-Id: I2dd257f3121d6c6c62c6aeba52e1c74046b3c584
GitHub-Last-Rev: 6d4eeafadf0b4671b7e17c6810f1a66a9fda7d3c
GitHub-Pull-Request: golang/go#41630
Reviewed-on: https://go-review.googlesource.com/c/go/+/257517
Trust: Emmanuel Odeke <emm.odeke@gmail.com>
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MD5WithRSA
Bypasses the signature verification check we previously added if the
signature algorithm is MD5WithRSA, as we only support this algorithm
for signing and not verification.
Change-Id: Idba6dbba8b365d6199d467526746b88a5f734af1
Reviewed-on: https://go-review.googlesource.com/c/go/+/264019
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The old ioutil references are still valid, but update our code
to reflect best practices and get used to the new locations.
Code compiled with the bootstrap toolchain
(cmd/asm, cmd/dist, cmd/compile, debug/elf)
must remain Go 1.4-compatible and is excluded.
Also excluded vendored code.
For #41190.
Change-Id: I6d86f2bf7bc37a9d904b6cee3fe0c7af6d94d5b1
Reviewed-on: https://go-review.googlesource.com/c/go/+/263142
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The old os references are still valid, but update our code
to reflect best practices and get used to the new locations.
Code compiled with the bootstrap toolchain
(cmd/asm, cmd/dist, cmd/compile, debug/elf)
must remain Go 1.4-compatible and is excluded.
For #41190.
Change-Id: I8f9526977867c10a221e2f392f78d7dec073f1bd
Reviewed-on: https://go-review.googlesource.com/c/go/+/243907
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Also put Reset in the correct place for the other
benchmarks.
name old time/op new time/op delta
NewWriteSum-8 1.01µs ± 0% 1.01µs ± 1% ~ (p=0.945 n=9+9)
name old speed new speed delta
NewWriteSum-8 31.7MB/s ± 0% 31.6MB/s ± 1% ~ (p=0.948 n=9+9)
name old alloc/op new alloc/op delta
NewWriteSum-8 544B ± 0% 544B ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
NewWriteSum-8 7.00 ± 0% 7.00 ± 0% ~ (all equal)
Fixes #41089
Change-Id: I3dae660adbe4993963130bf3c2636bd53899164b
Reviewed-on: https://go-review.googlesource.com/c/go/+/261960
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This changes checks the signature generated during CreateCertificate
and returns an error if the verification fails. A benchmark is also
added. For RSA keys the delta looks to be insignificant, but for
ECDSA keys it introduces a much larger delta which is not ideal.
name old time/op new time/op delta
RSA_2048-8 1.38ms ± 6% 1.41ms ± 2% ~ (p=0.182 n=10)
ECDSA_P256-8 42.6µs ± 4% 116.8µs ± 4% +174.00% (p=0.000 n=1
Fixes #40458
Change-Id: I22827795bb9bb6868b4fa47391927db1d3bc19a1
Reviewed-on: https://go-review.googlesource.com/c/go/+/259697
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Updates #38485.
Change-Id: I0582a53171ce803ca1b0237cfa9bc022fc1da6f9
Reviewed-on: https://go-review.googlesource.com/c/go/+/260340
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Change-Id: I819c121ff388460ec348af773ef94b44416a2ea9
GitHub-Last-Rev: 98dd8fb25cecb73e88d107e0a35e3e63a53dfd09
GitHub-Pull-Request: golang/go#41785
Reviewed-on: https://go-review.googlesource.com/c/go/+/259517
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Updates #40337
Change-Id: I5c1218df3ae7e13144a1d9f7d4a4b456e4475c0a
Reviewed-on: https://go-review.googlesource.com/c/go/+/257939
Trust: Filippo Valsorda <filippo@golang.org>
Trust: Roland Shoemaker <roland@golang.org>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
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Extends the IA5String encoding restrictions that are currently applied
to name constraints to dNSName, rfc822Name, and
uniformResourceIdentifier elements of the SAN. The utility function
isIA5String is updated to use unicode.MaxASCII rather than utf8.RuneSelf
as it is somewhat more readable.
Certificates that include these badly encoded names do exist, but are
exceedingly rare. zlint and other linters enforce this encoding and
searching censys.io reveals only three currently trusted certificates
with this particular encoding issue.
Fixes #26362
Change-Id: I7a4f3e165a1754e5b4bfaeabc03e01eb7367f3c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/235078
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Eliminate a panic in x509.CreateCertificate when passing templates with unknown ExtKeyUsage; return an error instead.
Fixes #41169
Change-Id: Ia229d3b0d4a1bdeef05928439d97dab228687b3c
Reviewed-on: https://go-review.googlesource.com/c/go/+/252557
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Originally, zeroExtendAndCopy is used to pad src with leading zeros and
copy the padded src into the destination. It is no longer needed after
CL 230397 introduced FillBytes. We can simply use that and remove the
zeroExtendAndCopy function. It is cleaner and reduces some allocation.
In addition, this patch tries to avoid calling hashToInt function in
both Sign and Verify function so some allocation is reduced.
Benchmarks:
name old alloc/op new alloc/op delta
SignP256-8 1.60kB ± 0% 1.49kB ± 0% -7.23% (p=0.000 n=20+20)
SignP384-8 1.74kB ± 0% 1.59kB ± 0% -8.50% (p=0.000 n=20+18)
VerifyP256-8 176B ± 0% 0B -100.00% (p=0.000 n=20+20)
KeyGeneration-8 640B ± 0% 640B ± 0% ~ (all equal)
name old allocs/op new allocs/op delta
SignP256-8 22.0 ± 0% 17.0 ± 0% -22.73% (p=0.000 n=20+20)
SignP384-8 22.0 ± 0% 17.0 ± 0% -22.73% (p=0.000 n=20+20)
VerifyP256-8 7.00 ± 0% 0.00 -100.00% (p=0.000 n=20+20)
KeyGeneration-8 13.0 ± 0% 13.0 ± 0% ~ (all equal)
Change-Id: Ic4c95191eded55deb3420d97db501689f3b173c9
Reviewed-on: https://go-review.googlesource.com/c/go/+/232297
Reviewed-by: Michael Munday <mike.munday@ibm.com>
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When building a x509 chain the algorithm currently looks for parents
that have a subject key identifier (SKID) that matches the child
authority key identifier (AKID), if it is present, and returns all
matches. If the child doesn't have an AKID, or there are no parents
with matching SKID it will instead return all parents that have a
subject DN matching the child's issuer DN. Prioritizing AKID/SKID
matches over issuer/subject matches means that later in buildChains we
have to throw away any pairs where these DNs do not match. This also
prevents validation when a child has a SKID with two possible parents,
one with matching AKID but mismatching subject DN, and one with a
matching subject but missing AKID. In this case the former will be
chosen and the latter ignored, meaning a valid chain cannot be built.
This change alters how possible parents are chosen. Instead of doing a
two step search it instead only consults the CertPool.byName subject DN
map, avoiding issues where possible parents may be shadowed by parents
that have SKID but bad subject DNs. Additionally it orders the list of
possible parents by the likelihood that they are in fact a match. This
ordering follows this pattern:
* AKID and SKID match
* AKID present, SKID missing / AKID missing, SKID present
* AKID and SKID don't match
In an ideal world this should save a handful of cycles when there are
multiple possible matching parents by prioritizing parents that have
the highest likelihood. This does diverge from past behavior in that
it also means there are cases where _more_ parents will be considered
than in the past. Another version of this change could just retain the
past behavior, and only consider parents where both the subject and
issuer DNs match, and if both parent and child have SKID and AKID also
compare those, without any prioritization of the candidate parents.
This change removes an existing test case as it assumes that the
CertPool will return a possible candidate where the issuer/subject DNs
do not match.
Fixes #30079
Change-Id: I629f579cabb0b3d0c8cae5ad0429cc5a536b3e58
Reviewed-on: https://go-review.googlesource.com/c/go/+/232993
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A test that checks if "tls.(*Conn)" appears in any symbol's name.
tls.Conn is a type, so the string "tls.(*Conn)" can only appear
in the name of a method of Conn. But the test code doesn't use
any of the methods. Not sure why this needs to be live. In
particular, the linker is now able to prune all methods of Conn.
Remove this requirement. In fact, just drop the only_conn test
case, as simply allocating a type doesn't necessarily bring
anything live.
Change-Id: I754291b75d38e1465b5291b4dea20806615d21b3
Reviewed-on: https://go-review.googlesource.com/c/go/+/257973
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Fixes #40565
Change-Id: I13a67be193f8cd68df02b8729529e627a73d364b
GitHub-Last-Rev: b03d2c04fd88db909b40dfd7bd08fe13d8994ab9
GitHub-Pull-Request: golang/go#40566
Reviewed-on: https://go-review.googlesource.com/c/go/+/246637
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Split the list of CA certificate directory locations in root_unix.go by
GOOS (aix, *bsd, js, linux, solaris).
On solaris, also include /etc/certs/CA as documented here:
https://docs.oracle.com/cd/E37838_01/html/E61024/kmf-cacerts.html
Same as CL 2208 did for certFiles.
Change-Id: Id24822d6a674bbbbf4088ebb8fe8437edad232b7
Reviewed-on: https://go-review.googlesource.com/c/go/+/248762
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Rather than generating the three possible RSA PSS parameters each time
they are needed just hardcode them and pick the required one based on
the hash function.
Fixes #41407
Change-Id: Id43bdaf40b3ca82c4c04c6588e3b643f63107657
Reviewed-on: https://go-review.googlesource.com/c/go/+/258037
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CL 250357 exported net.ErrClosed to allow more reliable detection
of closed network connection errors. Use that error in crypto/tls
as well.
The error message is changed from "tls: use of closed connection"
to "use of closed network connection", so the code that detected such
errors by looking for that text in the error message will need to be
updated to use errors.Is(err, net.ErrClosed) instead.
Fixes #41066
Change-Id: Ic05c0ed6a4f57af2a0302d53b00851a59200be2e
Reviewed-on: https://go-review.googlesource.com/c/go/+/256897
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Introduce GOOS=ios for iOS systems. GOOS=ios matches "darwin"
build tag, like GOOS=android matches "linux" and GOOS=illumos
matches "solaris". Only ios/arm64 is supported (ios/amd64 is
not).
GOOS=ios and GOOS=darwin remain essentially the same at this
point. They will diverge at later time, to differentiate macOS
and iOS.
Uses of GOOS=="darwin" are changed to (GOOS=="darwin" || GOOS=="ios"),
except if it clearly means macOS (e.g. GOOS=="darwin" && GOARCH=="amd64"),
it remains GOOS=="darwin".
Updates #38485.
Change-Id: I4faacdc1008f42434599efb3c3ad90763a83b67c
Reviewed-on: https://go-review.googlesource.com/c/go/+/254740
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