feat: support the ED25519 asymmetric signing algorithm

Google APIs · copybara-github · commit 245c0f55538e · 2024-05-04T08:25:54.000-07:00
PiperOrigin-RevId: 630661612
diff --git a/google/cloud/kms/v1/resources.proto b/google/cloud/kms/v1/resources.proto
@@ -434,6 +434,9 @@ message CryptoKeyVersion {
     // https://cloud.google.com/kms/docs/create-validate-signatures#ecdsa_support_for_other_hash_algorithms
     EC_SIGN_SECP256K1_SHA256 = 31;
 
+    // EdDSA on the Curve25519 in pure mode (taking data as input).
+    EC_SIGN_ED25519 = 40;
+
     // HMAC-SHA256 signing with a 256 bit key.
     HMAC_SHA256 = 32;
 
