René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"`cipher.update()` fails for CCM mode with zero-length ArrayBufferView backed by explicit ArrayBuffer","articleBody":"### Version\n\nv25.8.1\n\n### Platform\n\n```text\nDarwin Mac 25.3.0 Darwin Kernel Version 25.3.0: Wed Jan 28 20:56:42 PST 2026; root:xnu-12377.91.3~2/RELEASE_ARM64_T8142 arm64\n```\n\n### Subsystem\n\ncrypto\n\n### What steps will reproduce the bug?\n\n```javascript\nimport crypto from \"node:crypto\";\n\nconst key = crypto.randomBytes(16);\nconst nonce = crypto.randomBytes(13);\n\nconst ccm = crypto.createCipheriv(\"aes-128-ccm\", key, nonce, { authTagLength: 16 });\nccm.setAAD(Buffer.alloc(0), { plaintextLength: 0 });\nccm.update(new DataView(new ArrayBuffer(0)));\nccm.final();\n```\n\n### How often does it reproduce? Is there a required condition?\n\nHappens on AES-CCM but not AES-GCM\n\n### What is the expected behavior? Why is that the expected behavior?\n\nThe expected behavior is not to receive an exception because it is effectively a no-op. This is also a different behavior between CCM and GCM.\n\n### What do you see instead?\n\n```\nError: error:1C800077:Provider routines::tag not set\n    at Cipheriv.final (node:internal/crypto/cipher:170:29)\n    at [eval]:10:5\n    at [eval]:11:4\n    at runScriptInThisContext (node:internal/vm:219:10)\n    at node:internal/process/execution:451:12\n    at [eval]-wrapper:6:24\n    at runScriptInContext (node:internal/process/execution:449:60)\n    at evalFunction (node:internal/process/execution:283:30)\n    at evalTypeScript (node:internal/process/execution:295:3)\n    at node:internal/main/eval_string:71:3 {\n  opensslErrorStack: [ 'error:1C800077:Provider routines::tag not set' ],\n  library: 'Provider routines',\n  reason: 'tag not set',\n  code: 'ERR_OSSL_TAG_NOT_SET'\n}\n```\n\n### Additional information\n\nI maintain a [cryptography library](https://github.com/jtdowney/kryptos) for Gleam (which can compile to JS). This case popped up in my property-based testing.","author":{"url":"https://github.com/jtdowney","@type":"Person","name":"jtdowney"},"datePublished":"2026-03-19T17:51:14.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":2},"url":"https://github.com/62342/node/issues/62342"}