policy: image signature verification support

Signed-off-by: Tonis Tiigi <[email protected]>

Author: tonistiigi

build/opt.go

@@ -344,7 +344,8 @@ func toSolveOpt(ctx context.Context, node builder.Node, multiDriver bool, opt *O
 			Log: func(msg string) {
 				log.Printf("[policy] %s", msg)
 			},
-			FS: opt.Inputs.policy.FS,
+			FS:     opt.Inputs.policy.FS,
+			Config: cfg,
 		})
 		so.SourcePolicyProvider = policysession.NewPolicyProvider(p.CheckPolicy)
 	}

go.mod

@@ -1,11 +1,11 @@
 module github.com/docker/buildx
 
-go 1.24.6
+go 1.25.0
 
 require (
 	github.com/Masterminds/semver/v3 v3.4.0
 	github.com/Microsoft/go-winio v0.6.2
-	github.com/aws/aws-sdk-go-v2/config v1.31.3
+	github.com/aws/aws-sdk-go-v2/config v1.31.20
 	github.com/compose-spec/compose-go/v2 v2.9.1
 	github.com/containerd/console v1.0.5
 	github.com/containerd/containerd/v2 v2.2.1-0.20251115011841-efd86f2b0bc2 // release/2.2 ; https://github.com/containerd/containerd/pull/12508
@@ -33,6 +33,7 @@ require (
 	github.com/moby/go-archive v0.1.0
 	github.com/moby/moby/api v1.52.0
 	github.com/moby/moby/client v0.1.0
+	github.com/moby/policy-helpers v0.0.0-20251202162112-319fbb92a1cc
 	github.com/moby/sys/atomicwriter v0.1.0
 	github.com/moby/sys/mountinfo v0.7.2
 	github.com/morikuni/aec v1.0.0
@@ -59,12 +60,13 @@ require (
 	go.opentelemetry.io/otel/sdk v1.38.0
 	go.opentelemetry.io/otel/trace v1.38.0
 	go.yaml.in/yaml/v3 v3.0.4
-	golang.org/x/mod v0.29.0
-	golang.org/x/sync v0.17.0
-	golang.org/x/sys v0.37.0
-	golang.org/x/term v0.35.0
-	golang.org/x/text v0.29.0
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20250825161204-c5933d9347a5
+	golang.org/x/crypto v0.45.0
+	golang.org/x/mod v0.30.0
+	golang.org/x/sync v0.18.0
+	golang.org/x/sys v0.38.0
+	golang.org/x/term v0.37.0
+	golang.org/x/text v0.31.0
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251103181224-f26f9409b101
 	google.golang.org/grpc v1.76.0
 	google.golang.org/grpc/cmd/protoc-gen-go-grpc v1.5.1
 	google.golang.org/protobuf v1.36.10
@@ -80,19 +82,21 @@ require (
 	github.com/agnivade/levenshtein v1.2.1 // indirect
 	github.com/apparentlymart/go-cidr v1.0.1 // indirect
 	github.com/apparentlymart/go-textseg/v15 v15.0.0 // indirect
-	github.com/aws/aws-sdk-go-v2 v1.38.1 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.18.7 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.4 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.4 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.4 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.3 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.4 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.28.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.34.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.38.0 // indirect
-	github.com/aws/smithy-go v1.22.5 // indirect
+	github.com/asaskevich/govalidator v0.0.0-20230301143203-a9d515a09cc2 // indirect
+	github.com/aws/aws-sdk-go-v2 v1.39.6 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.18.24 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.18.13 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.4.13 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.7.13 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.8.4 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.13.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.13.13 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.30.3 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.35.7 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.40.2 // indirect
+	github.com/aws/smithy-go v1.23.2 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/blang/semver v3.5.1+incompatible // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
 	github.com/cloudflare/circl v1.6.0 // indirect
@@ -101,8 +105,10 @@ require (
 	github.com/containerd/ttrpc v1.2.7 // indirect
 	github.com/containerd/typeurl/v2 v2.2.3 // indirect
 	github.com/cpuguy83/go-md2man/v2 v2.0.7 // indirect
+	github.com/cyberphone/json-canonicalization v0.0.0-20241213102144-19d51d7fe467 // indirect
 	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.0 // indirect
-	github.com/docker/distribution v2.8.3+incompatible // indirect
+	github.com/digitorus/pkcs7 v0.0.0-20230818184609-3a137a874352 // indirect
+	github.com/digitorus/timestamp v0.0.0-20231217203849-220c5c2851b7 // indirect
 	github.com/docker/docker-credential-helpers v0.9.4 // indirect
 	github.com/docker/go-connections v0.6.0 // indirect
 	github.com/emicklei/go-restful/v3 v3.13.0 // indirect
@@ -112,24 +118,43 @@ require (
 	github.com/go-ini/ini v1.67.0 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
-	github.com/go-openapi/jsonpointer v0.21.0 // indirect
-	github.com/go-openapi/jsonreference v0.20.2 // indirect
-	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/go-openapi/analysis v0.24.1 // indirect
+	github.com/go-openapi/errors v0.22.4 // indirect
+	github.com/go-openapi/jsonpointer v0.22.1 // indirect
+	github.com/go-openapi/jsonreference v0.21.3 // indirect
+	github.com/go-openapi/loads v0.23.2 // indirect
+	github.com/go-openapi/runtime v0.29.2 // indirect
+	github.com/go-openapi/spec v0.22.1 // indirect
+	github.com/go-openapi/strfmt v0.25.0 // indirect
+	github.com/go-openapi/swag v0.25.3 // indirect
+	github.com/go-openapi/swag/cmdutils v0.25.3 // indirect
+	github.com/go-openapi/swag/conv v0.25.3 // indirect
+	github.com/go-openapi/swag/fileutils v0.25.3 // indirect
+	github.com/go-openapi/swag/jsonname v0.25.3 // indirect
+	github.com/go-openapi/swag/jsonutils v0.25.3 // indirect
+	github.com/go-openapi/swag/loading v0.25.3 // indirect
+	github.com/go-openapi/swag/mangling v0.25.3 // indirect
+	github.com/go-openapi/swag/netutils v0.25.3 // indirect
+	github.com/go-openapi/swag/stringutils v0.25.3 // indirect
+	github.com/go-openapi/swag/typeutils v0.25.3 // indirect
+	github.com/go-openapi/swag/yamlutils v0.25.3 // indirect
+	github.com/go-openapi/validate v0.25.1 // indirect
 	github.com/go-viper/mapstructure/v2 v2.4.0 // indirect
 	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/goccy/go-json v0.10.5 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
+	github.com/google/certificate-transparency-go v1.3.2 // indirect
 	github.com/google/gnostic-models v0.7.0 // indirect
 	github.com/google/go-cmp v0.7.0 // indirect
-	github.com/gorilla/mux v1.7.0 // indirect
+	github.com/google/go-containerregistry v0.20.6 // indirect
 	github.com/gorilla/websocket v1.5.4-0.20250319132907-e064f32e3674 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.2 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 // indirect
 	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hiddeco/sshsig v0.2.0 // indirect
+	github.com/in-toto/attestation v1.1.2 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/compress v1.18.1 // indirect
 	github.com/lestrrat-go/blackmagic v1.0.4 // indirect
@@ -140,7 +165,6 @@ require (
 	github.com/lestrrat-go/jwx/v3 v3.0.11 // indirect
 	github.com/lestrrat-go/option v1.0.1 // indirect
 	github.com/lestrrat-go/option/v2 v2.0.0 // indirect
-	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/mattn/go-runewidth v0.0.16 // indirect
 	github.com/mattn/go-shellwords v1.0.12 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
@@ -157,6 +181,7 @@ require (
 	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/mxk/go-flowrate v0.0.0-20140419014527-cca7078d478f // indirect
+	github.com/oklog/ulid v1.3.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/prometheus/client_golang v1.23.2 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
@@ -169,19 +194,29 @@ require (
 	github.com/secure-systems-lab/go-securesystemslib v0.9.1 // indirect
 	github.com/segmentio/asm v1.2.0 // indirect
 	github.com/shibumi/go-pathspec v1.3.0 // indirect
+	github.com/sigstore/protobuf-specs v0.5.0 // indirect
+	github.com/sigstore/rekor v1.4.3 // indirect
+	github.com/sigstore/rekor-tiles/v2 v2.0.1 // indirect
+	github.com/sigstore/sigstore v1.10.0 // indirect
+	github.com/sigstore/sigstore-go v1.1.4-0.20251124094504-b5fe07a5a7d7 // indirect
+	github.com/sigstore/timestamp-authority/v2 v2.0.2 // indirect
 	github.com/tchap/go-patricia/v2 v2.3.3 // indirect
+	github.com/theupdateframework/go-tuf/v2 v2.3.0 // indirect
 	github.com/tonistiigi/dchapes-mode v0.0.0-20250318174251-73d941a28323 // indirect
 	github.com/tonistiigi/units v0.0.0-20180711220420-6950e57a87ea // indirect
 	github.com/tonistiigi/vt100 v0.0.0-20240514184818-90bafcd6abab // indirect
+	github.com/transparency-dev/formats v0.0.0-20251017110053-404c0d5b696c // indirect
+	github.com/transparency-dev/merkle v0.0.2 // indirect
 	github.com/valyala/fastjson v1.6.4 // indirect
 	github.com/vektah/gqlparser/v2 v2.5.30 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
 	github.com/xeipuuv/gojsonpointer v0.0.0-20190905194746-02993c407bfb // indirect
 	github.com/xeipuuv/gojsonreference v0.0.0-20180127040603-bd5ef7bd5415 // indirect
 	github.com/xhit/go-str2duration/v2 v2.1.0 // indirect
 	github.com/yashtewari/glob-intersection v0.2.0 // indirect
+	go.mongodb.org/mongo-driver v1.17.6 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.61.0 // indirect
+	go.opentelemetry.io/contrib/instrumentation/google.golang.org/grpc/otelgrpc v0.63.0 // indirect
 	go.opentelemetry.io/contrib/instrumentation/net/http/httptrace/otelhttptrace v0.61.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.38.0 // indirect
 	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetrichttp v1.38.0 // indirect
@@ -191,12 +226,11 @@ require (
 	go.opentelemetry.io/otel/sdk/metric v1.38.0 // indirect
 	go.opentelemetry.io/proto/otlp v1.7.1 // indirect
 	go.yaml.in/yaml/v2 v2.4.2 // indirect
-	golang.org/x/crypto v0.42.0 // indirect
-	golang.org/x/net v0.44.0 // indirect
-	golang.org/x/oauth2 v0.30.0 // indirect
+	golang.org/x/net v0.47.0 // indirect
+	golang.org/x/oauth2 v0.33.0 // indirect
 	golang.org/x/time v0.14.0 // indirect
-	golang.org/x/tools v0.37.0 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20250825161204-c5933d9347a5 // indirect
+	golang.org/x/tools v0.38.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20250929231259-57b25ae835d4 // indirect
 	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect