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signature.go
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signature.go
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// SPDX-License-Identifier: Apache-2.0
// Copyright (C) 2023 The Falco Authors
//
// 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
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package signature
import (
"context"
"github.com/sigstore/cosign/v2/cmd/cosign/cli/options"
"github.com/falcosecurity/falcoctl/internal/cosign"
"github.com/falcosecurity/falcoctl/pkg/index/index"
)
// Verify checks that a fully qualified reference is signed according to the parameters.
func Verify(ctx context.Context, ref string, signature *index.Signature) error {
if signature == nil {
// nothing to do
return nil
}
if signature.Cosign == nil {
// we currently only support cosign
return nil
}
v := cosign.VerifyCommand{
CertVerifyOptions: options.CertVerifyOptions{
CertIdentity: signature.Cosign.CertificateIdentity,
CertIdentityRegexp: signature.Cosign.CertificateIdentityRegexp,
CertOidcIssuer: signature.Cosign.CertificateOidcIssuer,
CertOidcIssuerRegexp: signature.Cosign.CertificateOidcIssuerRegexp,
},
}
return v.DoVerify(ctx, []string{ref})
}