1 files changed, 0 insertions, 88 deletions

diff --git a/cli/internal/cache/cache_signature_authentication.go b/cli/internal/cache/cache_signature_authentication.go
deleted file mode 100644
index f9fe4c0..0000000
--- a/cli/internal/cache/cache_signature_authentication.go
+++ /dev/null
@@ -1,88 +0,0 @@
-// Adapted from https://github.com/thought-machine/please
-// Copyright Thought Machine, Inc. or its affiliates. All Rights Reserved.
-// SPDX-License-Identifier: Apache-2.0
-package cache
-
-import (
-	"crypto/hmac"
-	"crypto/sha256"
-	"encoding/base64"
-	"encoding/json"
-	"errors"
-	"fmt"
-	"hash"
-	"os"
-)
-
-type ArtifactSignatureAuthentication struct {
-	teamId  string
-	enabled bool
-}
-
-func (asa *ArtifactSignatureAuthentication) isEnabled() bool {
-	return asa.enabled
-}
-
-// If the secret key is not found or the secret key length is 0, an error is returned
-// Preference is given to the environment specified secret key.
-func (asa *ArtifactSignatureAuthentication) secretKey() ([]byte, error) {
-	secret := os.Getenv("TURBO_REMOTE_CACHE_SIGNATURE_KEY")
-	if len(secret) == 0 {
-		return nil, errors.New("signature secret key not found. You must specify a secret key in the TURBO_REMOTE_CACHE_SIGNATURE_KEY environment variable")
-	}
-	return []byte(secret), nil
-}
-
-func (asa *ArtifactSignatureAuthentication) generateTag(hash string, artifactBody []byte) (string, error) {
-	tag, err := asa.getTagGenerator(hash)
-	if err != nil {
-		return "", err
-	}
-	tag.Write(artifactBody)
-	return base64.StdEncoding.EncodeToString(tag.Sum(nil)), nil
-}
-
-func (asa *ArtifactSignatureAuthentication) getTagGenerator(hash string) (hash.Hash, error) {
-	teamId := asa.teamId
-	secret, err := asa.secretKey()
-	if err != nil {
-		return nil, err
-	}
-	artifactMetadata := &struct {
-		Hash   string `json:"hash"`
-		TeamId string `json:"teamId"`
-	}{
-		Hash:   hash,
-		TeamId: teamId,
-	}
-	metadata, err := json.Marshal(artifactMetadata)
-	if err != nil {
-		return nil, err
-	}
-
-	// TODO(Gaspar) Support additional signing algorithms here
-	h := hmac.New(sha256.New, secret)
-	h.Write(metadata)
-	return h, nil
-}
-
-func (asa *ArtifactSignatureAuthentication) validate(hash string, artifactBody []byte, expectedTag string) (bool, error) {
-	computedTag, err := asa.generateTag(hash, artifactBody)
-	if err != nil {
-		return false, fmt.Errorf("failed to verify artifact tag: %w", err)
-	}
-	return hmac.Equal([]byte(computedTag), []byte(expectedTag)), nil
-}
-
-type StreamValidator struct {
-	currentHash hash.Hash
-}
-
-func (sv *StreamValidator) Validate(expectedTag string) bool {
-	computedTag := base64.StdEncoding.EncodeToString(sv.currentHash.Sum(nil))
-	return hmac.Equal([]byte(computedTag), []byte(expectedTag))
-}
-
-func (sv *StreamValidator) CurrentValue() string {
-	return base64.StdEncoding.EncodeToString(sv.currentHash.Sum(nil))
-}