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v1.0.0-pre ... constants-

Author SHA1 Message Date
Michael Muré
5cea53af26 perf(constants): avoid allocating a map for each Decode*() call 
```
goos: linux
goarch: amd64
pkg: github.com/ucan-wg/go-varsig
cpu: 13th Gen Intel(R) Core(TM) i7-1360P
                         │    old.txt    │               new.txt                │
                         │    sec/op     │    sec/op     vs base                │
DecodeHashAlgorithm-16     145.65n ± 10%   59.62n ± 30%  -59.07% (p=0.000 n=10)
DecodePayloadEncoding-16   136.65n ± 46%   50.02n ±  5%  -63.40% (p=0.000 n=10)
geomean                     141.1n         54.60n        -61.29%

                         │  old.txt   │               new.txt               │
                         │    B/op    │    B/op     vs base                 │
DecodeHashAlgorithm-16     48.00 ± 0%   48.00 ± 0%       ~ (p=1.000 n=10) ¹
DecodePayloadEncoding-16   48.00 ± 0%   48.00 ± 0%       ~ (p=1.000 n=10) ¹
geomean                    48.00        48.00       +0.00%
¹ all samples are equal

                         │  old.txt   │               new.txt               │
                         │ allocs/op  │ allocs/op   vs base                 │
DecodeHashAlgorithm-16     1.000 ± 0%   1.000 ± 0%       ~ (p=1.000 n=10) ¹
DecodePayloadEncoding-16   1.000 ± 0%   1.000 ± 0%       ~ (p=1.000 n=10) ¹
geomean                    1.000        1.000       +0.00%
¹ all samples are equal
```
 2025-07-08 16:53:40 +02:00
Steve Moyer
8dcaefbf3a feat: switch to dual Apache/MIT licenses 2025-07-08 10:51:45 -04:00
Steve Moyer
caaa0204b8 fix(hash): HashAlgorithmUnspecified should not be ok 2025-07-08 09:42:09 -04:00
Steve Moyer
8c932e0eb8 chore(ownership): transfer ownership from selesy to ucan-wg 2025-07-08 08:23:30 -04:00
13 changed files with 295 additions and 238 deletions
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2
.golangci.yaml
View File

@@ -31,7 +31,7 @@ formatters:
settings:
goimports:
local-prefixes:
- github.com/selesy/go-varsig
- github.com/ucan-wg/go-varsig
exclusions:
generated: lax
paths:

212
LICENSE
View File

@@ -1,201 +1,25 @@
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
The contents of this repository are Copyright (c) corresponding authors and
contributors, licensed under the `Permissive License Stack` meaning either of:
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
- Apache-2.0 Software License: https://www.apache.org/licenses/LICENSE-2.0
([...4tr2kfsq](https://dweb.link/ipfs/bafkreiankqxazcae4onkp436wag2lj3ccso4nawxqkkfckd6cg4tr2kfsq))
1. Definitions.
- MIT Software License: https://opensource.org/licenses/MIT
([...vljevcba](https://dweb.link/ipfs/bafkreiepofszg4gfe2gzuhojmksgemsub2h4uy2gewdnr35kswvljevcba))
"License" shall mean the terms and conditions for use, reproduction,
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You may not use the contents of this repository except in compliance
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Apache License
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http://www.apache.org/licenses/
TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
1. Definitions.
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"You" (or "Your") shall mean an individual or Legal Entity
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use, offer to sell, sell, import, and otherwise transfer the Work,
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granted to You under this License for that Work shall terminate
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Work or Derivative Works thereof in any medium, with or without
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stating that You changed the files; and
(c) You must retain, in the Source form of any Derivative Works
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(d) If the Work includes a "NOTICE" text file as part of its
distribution, then any Derivative Works that You distribute must
include a readable copy of the attribution notices contained
within such NOTICE file, excluding those notices that do not
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of the following places: within a NOTICE text file distributed
as part of the Derivative Works; within the Source form or
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of the NOTICE file are for informational purposes only and
do not modify the License. You may add Your own attribution
notices within Derivative Works that You distribute, alongside
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that such additional attribution notices cannot be construed
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You may add Your own copyright statement to Your modifications and
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reproduction, and distribution of the Work otherwise complies with
the conditions stated in this License.
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any Contribution intentionally submitted for inclusion in the Work
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names, trademarks, service marks, or product names of the Licensor,
except as required for reasonable and customary use in describing the
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7. Disclaimer of Warranty. Unless required by applicable law or
agreed to in writing, Licensor provides the Work (and each
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result of this License or out of the use or inability to use the
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work stoppage, computer failure or malfunction, or any and all
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9. Accepting Warranty or Additional Liability. While redistributing
the Work or Derivative Works thereof, You may choose to offer,
and charge a fee for, acceptance of support, warranty, indemnity,
or other liability obligations and/or rights consistent with this
License. However, in accepting such obligations, You may act only
on Your own behalf and on Your sole responsibility, not on behalf
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defend, and hold each Contributor harmless for any liability
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of your accepting any such warranty or additional liability.
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APPENDIX: How to apply the Apache License to your work.
To apply the Apache License to your work, attach the following
boilerplate notice, with the fields enclosed by brackets "[]"
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Copyright 2025 UCAN Working Group - All right reserved
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
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@@ -0,0 +1,21 @@
MIT License
Copyright (c) 2025 UCAN Working Group - All rights reserved
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
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The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

2
common_test.go
View File

@@ -5,7 +5,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/selesy/go-varsig"
"github.com/ucan-wg/go-varsig"
)
func TestEd25519(t *testing.T) {

52
constant.go
View File

@@ -12,7 +12,7 @@ import (
const Prefix = uint64(multicodec.Varsig)
// HashAlgorithm is the multicodec.Code that specifies the hash algorithm
// that's used to reduced the signed content
// that's used to reduce the signed content
type HashAlgorithm uint64
// Constant multicodec.Code values that allow Varsig implementations to
@@ -36,17 +36,15 @@ func DecodeHashAlgorithm(r *bytes.Reader) (HashAlgorithm, error) {
h := HashAlgorithm(u)
if _, ok := map[HashAlgorithm]struct{}{
HashAlgorithmUnspecified: {},
HashAlgorithmSHA256: {},
HashAlgorithmSHA384: {},
HashAlgorithmSHA512: {},
HashAlgorithmShake256: {},
}[h]; !ok {
switch h {
case HashAlgorithmSHA256,
HashAlgorithmSHA384,
HashAlgorithmSHA512,
HashAlgorithmShake256:
return h, nil
default:
return HashAlgorithmUnspecified, fmt.Errorf("%w: %x", ErrUnknownHashAlgorithm, h)
}
return h, nil
}
// PayloadEncoding specifies the encoding of the data being (hashed and)
@@ -89,32 +87,30 @@ func DecodePayloadEncoding(r *bytes.Reader, vers Version) (PayloadEncoding, erro
// https://github.com/ChainAgnostic/varsig#4-payload-encoding
func decodeEncodingInfoV0(payEnc PayloadEncoding) (PayloadEncoding, error) {
if _, ok := map[PayloadEncoding]struct{}{
PayloadEncodingVerbatim: {},
PayloadEncodingDAGPB: {},
PayloadEncodingDAGCBOR: {},
PayloadEncodingDAGJSON: {},
PayloadEncodingJWT: {},
PayloadEncodingEIP191: {},
}[payEnc]; !ok {
switch payEnc {
case PayloadEncodingVerbatim,
PayloadEncodingDAGPB,
PayloadEncodingDAGCBOR,
PayloadEncodingDAGJSON,
PayloadEncodingJWT,
PayloadEncodingEIP191:
return payEnc, nil
default:
return PayloadEncodingUnspecified, fmt.Errorf("%w: version=%d, encoding=%x", ErrUnsupportedPayloadEncoding, Version0, payEnc)
}
return payEnc, nil
}
// https://github.com/expede/varsig/blob/main/README.md#payload-encoding
func decodeEncodingInfoV1(payEnc PayloadEncoding) (PayloadEncoding, error) {
if _, ok := map[PayloadEncoding]struct{}{
PayloadEncodingVerbatim: {},
PayloadEncodingDAGCBOR: {},
PayloadEncodingDAGJSON: {},
PayloadEncodingEIP191: {},
}[payEnc]; !ok {
switch payEnc {
case PayloadEncodingVerbatim,
PayloadEncodingDAGCBOR,
PayloadEncodingDAGJSON,
PayloadEncodingEIP191:
return payEnc, nil
default:
return PayloadEncodingUnspecified, fmt.Errorf("%w: version=%d, encoding=%x", ErrUnsupportedPayloadEncoding, Version1, payEnc)
}
return payEnc, nil
}
// Discriminator is (usually) the multicodec.Code representing the public

18
constant_test.go
View File

@@ -7,7 +7,7 @@ import (
"github.com/stretchr/testify/require"
"github.com/selesy/go-varsig"
"github.com/ucan-wg/go-varsig"
)
func TestDecodeHashAlgorithm(t *testing.T) {
@@ -39,6 +39,14 @@ func TestDecodeHashAlgorithm(t *testing.T) {
})
}
func BenchmarkDecodeHashAlgorithm(b *testing.B) {
b.ReportAllocs()
data := []byte{0x12}
for i := 0; i < b.N; i++ {
_, _ = varsig.DecodeHashAlgorithm(bytes.NewReader(data))
}
}
func TestDecodePayloadEncoding(t *testing.T) {
t.Parallel()
@@ -105,3 +113,11 @@ func TestDecodePayloadEncoding(t *testing.T) {
}
})
}
func BenchmarkDecodePayloadEncoding(b *testing.B) {
b.ReportAllocs()
data := []byte{0x5f}
for i := 0; i < b.N; i++ {
_, _ = varsig.DecodePayloadEncoding(bytes.NewReader(data), varsig.Version1)
}
}

2
eddsa_test.go
View File

@@ -7,7 +7,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/selesy/go-varsig"
"github.com/ucan-wg/go-varsig"
)
func TestDecodeEd25519(t *testing.T) {

2
go.mod
View File

@@ -1,4 +1,4 @@
module github.com/selesy/go-varsig
module github.com/ucan-wg/go-varsig
go 1.24.4

2
registry_test.go
View File

@@ -8,7 +8,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/selesy/go-varsig"
"github.com/ucan-wg/go-varsig"
)
func TestRegistry_Decode(t *testing.T) {

2
rsa_test.go
View File

@@ -7,7 +7,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/selesy/go-varsig"
"github.com/ucan-wg/go-varsig"
)
func TestRSAVarsig(t *testing.T) {

15
varsig.go
View File

@@ -1,21 +1,20 @@
// Package varsig implements v0.1.0 of the [Varsig specification].
// Package varsig implements v1.0.0 of the [Varsig specification] with
// limited support for varsig < v1. This is primarily in support of the
// UCAN v1.0.0 specification and will be deprecated in the future.
//
// # Algorithm naming
// # Common algorithm naming
//
// While there is no strict need for compatibility with JWA/JWT/JWE/JWS,
// all attempts are made to keep the algorithm names here consistent with
// the table provided in [section 3.1] of RFC7518 titled "JSON Web Algorithms.
// In cases where there is no equivalent name for an algorithm, a best-
// effort attempt at creating a name in the spirit of that specification is
// made.
// list made available at the [IANA Registry] titled "JSON Web Signature
// and Encryption Algorithms" (JOSE.)
//
// It should also be noted that algorithm in this context might in fact be
// a pseudonym - for cryptographical signing algorithms that require the
// signed data to be hashed first, these names commonly refer to the
// combination of that signing algorithm and the hash algorithm.
//
// [section 3.1]: https://datatracker.ietf.org/doc/html/rfc7518#section-3.1
//
// [IANA Registry]]: https://www.iana.org/assignments/jose/jose.xhtml#web-signature-encryption-algorithms
// [Varsig Specification]: https://github.com/ChainAgnostic/varsig
package varsig

2
varsig_test.go
View File

@@ -9,7 +9,7 @@ import (
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/selesy/go-varsig"
"github.com/ucan-wg/go-varsig"
)
func TestDecode(t *testing.T) {