diff --git a/tpm.go b/tpm.go
index 4c642eb..4833112 100644
--- a/tpm.go
+++ b/tpm.go
@@ -60,7 +60,7 @@ func GetPubHash(opts ...Option) (string, error) {
 		return "", fmt.Errorf("getting EK: %w", err)
 	}
 
-	hash, err := getPubHash(ek)
+	hash, err := DecodePubHash(ek)
 	if err != nil {
 		return "", fmt.Errorf("hashing EK: %w", err)
 	}
diff --git a/tpm_attestor.go b/tpm_attestor.go
index 957c601..0c50c14 100644
--- a/tpm_attestor.go
+++ b/tpm_attestor.go
@@ -43,7 +43,8 @@ type ChallengeResponse struct {
 	Secret []byte
 }
 
-func getPubHash(ek *attest.EK) (string, error) {
+// DecodePubHash returns the public key from an attestation EK
+func DecodePubHash(ek *attest.EK) (string, error) {
 	data, err := pubBytes(ek)
 	if err != nil {
 		return "", err