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14 Commits
Author SHA1 Message Date
Mateusz Poliwczak 1faeef9713 cryptobyte: reject Object Identifiers with leading 0x80 
Change-Id: Ie3a1b53e801077cd86963799e644b9783943933c
GitHub-Last-Rev: 6629bd74f1874eb9fde8e72bfb444ebf9073a1ab
GitHub-Pull-Request: golang/crypto#255
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/483955
Run-TryBot: Mateusz Poliwczak <mpoliwczak34@gmail.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
 2023-04-12 18:30:42 +00:00
cui fliter 59ff47295c all: fix some comments 
Change-Id: I11030ee466c8cac6855ce4fe2cf72e0b8d7029f8
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/463796
Auto-Submit: Ian Lance Taylor <iant@google.com>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
 2023-01-30 18:50:24 +00:00
Filippo Valsorda 2c476679df cryptobyte: add support for ReadASN1Integer into []byte 
This lets us extract large integers without involving math/big.

While at it, drop some use of reflect where a type switch will do.

Change-Id: Iebe2fb2267610bf95cf9747ba1d49b5ac9e62cda
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/451515
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Reviewed-by: Damien Neil <dneil@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Reviewed-by: Roland Shoemaker <roland@golang.org>
TryBot-Result: Gopher Robot <gobot@golang.org>
Auto-Submit: Filippo Valsorda <filippo@golang.org>
 2022-11-17 19:18:49 +00:00
cui fliter 21d60a1521 all: remove redundant type conversion 
Change-Id: Ic6b210c1e5b99eef5c6e38d96feaf40e7e6033bb
GitHub-Last-Rev: b8ecf761efe6a2eec78a805a99d778bdcdb938f9
GitHub-Pull-Request: golang/crypto#229
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/429016
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Michael Knyszek <mknyszek@google.com>
 2022-11-09 16:50:04 +00:00
umlublin e495a2d5b3 cryptobyte: fix parsing of large ASN.1 OIDs 
Fixes golang/go#49678

Change-Id: If8a40e25edd810a66165ab78dd68d9b7fc2699f8
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/365674
Reviewed-by: Filippo Valsorda <filippo@golang.org>
Run-TryBot: Filippo Valsorda <filippo@golang.org>
Trust: Alex Rakoczy <alex@golang.org>
Trust: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
 2021-12-15 15:39:01 +00:00
Roland Shoemaker 4f45737414 cryptobyte: add support for UTCTime 
Mostly cribbed from encoding/asn1.parseUTCTime.

Fixes golang/go#45411

Change-Id: I6c6ab2a2ad7c05a7f8bd81ecce4fcbb4e608e8db
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/273286
Trust: Roland Shoemaker <roland@golang.org>
Trust: Katie Hockman <katie@golang.org>
Run-TryBot: Roland Shoemaker <roland@golang.org>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Katie Hockman <katie@golang.org>
 2021-04-15 15:40:28 +00:00
Pasi Tähkäpää 06a226fb4e Use boolean tag (0x01) for boolean type. 
Fix for problem with ReadASN1Boolean, which uses invalid tag (Integer / 0x02) when trying to read boolean value. This is a fix for the one case mentioned in "x/crypto/cryptobyte: cannot read boolean values #26565"
This is specified in ITU-T X.690, section 8.2, with DER additions specified in 11.1.

Change-Id: I3c9406bd6febb6112f380224fec1d42a6cd64ed4
GitHub-Last-Rev: fd7d01c897d8aa32d92115be9017f84d75fc4467
GitHub-Pull-Request: golang/crypto#137
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/233161
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2020-05-10 22:35:06 +00:00
Katie Hockman 18b771bd64 cryptobyte: handle AddASN1BigInt with -1 
Fixes golang/go#38510

Change-Id: Ie52db22bf85a5f79046fad95e5bbe2788c3bec92
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/229457
Reviewed-by: Filippo Valsorda <filippo@golang.org>
 2020-04-23 19:51:18 +00:00
Filippo Valsorda 69ecbb4d6d cryptobyte: fix panic due to malformed ASN.1 inputs on 32-bit archs 
When int is 32 bits wide (on 32-bit architectures like 386 and arm), an
overflow could occur, causing a panic, due to malformed ASN.1 being
passed to any of the ASN1 methods of String.

Tested on linux/386 and darwin/amd64.

This fixes CVE-2020-7919 and was found thanks to the Project Wycheproof
test vectors.

Change-Id: I8c9696a8bfad1b40ec877cd740dba3467d66ab54
Reviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/645211
Reviewed-by: Katie Hockman <katiehockman@google.com>
Reviewed-by: Adam Langley <agl@google.com>
Reviewed-on: https://go-review.googlesource.com/c/crypto/+/216677
Run-TryBot: Katie Hockman <katie@golang.org>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Reviewed-by: Filippo Valsorda <filippo@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2020-01-28 17:40:31 +00:00
Andrey Mirtchovski e73bf333ef x/crypto: cryptobyte: manage integers with implicit tags 
This change adds two functions to cryptobyte to encode and decode
int64 with tags supplied by the user.

This change also modifies a documentation comment which was outdated.

Fixes golang/go#24973

Change-Id: I2e3ca475891ba62df902f33085719f94e87a27cc
GitHub-Last-Rev: cd0300d9bfbd4e38f22503a046ea18f9ddd37676
GitHub-Pull-Request: golang/crypto#42
Reviewed-on: https://go-review.googlesource.com/108456
Reviewed-by: Adam Langley <agl@golang.org>
 2018-04-20 17:11:55 +00:00
Andrey Mirtchovski f70185d77e cryptobyte: minor documentation fix 
This change fixes a minor misspelling in the documentation for ReadBytes.

Change-Id: Ia1cfedfce11844c4d901b9aeed52065f3749dfa2
GitHub-Last-Rev: d1560b97807871c356d1b704d4879b1cf94a3fd8
GitHub-Pull-Request: golang/crypto#40
Reviewed-on: https://go-review.googlesource.com/106116
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
 2018-04-10 18:26:41 +00:00
Adam Langley faadfbdc03 cryptobyte: include changes from review of 57810 
I forgot to upload the final set of changes before submitting.

Change-Id: I3e60c6e2aad25af7f5007fc5ffbf8a1a1e1a91f3
Reviewed-on: https://go-review.googlesource.com/63331
Reviewed-by: Adam Langley <agl@golang.org>
 2017-09-12 19:18:25 +00:00
Adam Langley 2bcb7b5baf cryptobyte: various API and documentation updates. 
Change-Id: I83236ecea0774d4ec49e978a391eb3ff5dabdeb6
Reviewed-on: https://go-review.googlesource.com/57810
Reviewed-by: Martin Kreichgauer <martinkr@google.com>
Reviewed-by: Adam Langley <agl@golang.org>
 2017-09-12 17:47:39 +00:00
Martin Kreichgauer 728b753d01 cryptobyte: new package. 
cryptobyte is a helper library for building and parsing byte strings,
specifically for TLS and ASN.1.

Change-Id: I046b94773f6781153784c79f3d81e6d464eaebe0
Reviewed-on: https://go-review.googlesource.com/36123
Reviewed-by: Adam Langley <agl@golang.org>
Run-TryBot: Adam Langley <agl@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
 2017-03-07 00:40:51 +00:00