Index: content/child/webcrypto/webcrypto_util.cc |
diff --git a/content/child/webcrypto/webcrypto_util.cc b/content/child/webcrypto/webcrypto_util.cc |
index 6dad83fcae7dae6c9cb0bd1ecd7b50139d56c670..d4995a93b0d37da3656fc501642491d19b508e55 100644 |
--- a/content/child/webcrypto/webcrypto_util.cc |
+++ b/content/child/webcrypto/webcrypto_util.cc |
@@ -262,6 +262,29 @@ Status GetRsaKeyGenParameters( |
return Status::Success(); |
} |
+Status GetUsagesForGenerateAsymmetricKey( |
+ blink::WebCryptoKeyUsageMask combined_usages, |
+ blink::WebCryptoKeyUsageMask all_public_usages, |
+ blink::WebCryptoKeyUsageMask all_private_usages, |
+ blink::WebCryptoKeyUsageMask* public_usages, |
+ blink::WebCryptoKeyUsageMask* private_usages) { |
+ *public_usages = combined_usages & all_public_usages; |
+ *private_usages = combined_usages & all_private_usages; |
+ |
+ Status status = CheckKeyCreationUsages(all_public_usages, *public_usages); |
+ if (status.IsError()) |
+ return status; |
+ |
+ status = CheckKeyCreationUsages(all_private_usages, *private_usages); |
+ if (status.IsError()) |
+ return status; |
+ |
+ if (private_usages == 0) |
+ return Status::ErrorCreateKeyEmptyUsages(); |
+ |
+ return Status::Success(); |
+} |
+ |
} // namespace webcrypto |
} // namespace content |