Reference documentation and code samples for the Google Cloud Storage v1 API interface UrlSigner.IBlobSigner.
Represents the capability of signing a blob in a suitable form for Google Cloud Storage signed URLs.
This allows testing URL signing without credentials being available, as well as using Google Cloud IAM
to sign blobs.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThis documentation covers the \u003ccode\u003eUrlSigner.IBlobSigner\u003c/code\u003e interface within the Google Cloud Storage v1 API, providing reference information and code samples.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eIBlobSigner\u003c/code\u003e interface allows signing blobs for Google Cloud Storage signed URLs, enabling testing and IAM-based signing without direct credential availability.\u003c/p\u003e\n"],["\u003cp\u003eKey properties of the \u003ccode\u003eIBlobSigner\u003c/code\u003e include \u003ccode\u003eAlgorithm\u003c/code\u003e which identifies the signing algorithm, and \u003ccode\u003eId\u003c/code\u003e, which specifies the identity of the signer.\u003c/p\u003e\n"],["\u003cp\u003eThe interface includes methods to synchronously (\u003ccode\u003eCreateSignature\u003c/code\u003e) and asynchronously (\u003ccode\u003eCreateSignatureAsync\u003c/code\u003e) sign data blobs, returning the signature as base64 text.\u003c/p\u003e\n"],["\u003cp\u003eThe documentation spans multiple versions of the Google Cloud Storage v1 API, from 3.4.0 up to the latest version of 4.11.0, with links to each version's \u003ccode\u003eIBlobSigner\u003c/code\u003e documentation.\u003c/p\u003e\n"]]],[],null,[]]
