26413 2014-07-22 21:49:16 +0000 Inconsistent handling of usages parameter between importKey and generateKey 2014-09-26 00:44:17 +0000 1 1 1 Unclassified Web Cryptography Web Cryptography API Document unspecified PC Windows NT RESOLVED FIXED P2 normal --- 1 sleevi watsonm public-webcrypto rlb watsonm oldest_to_newest 109187 0 sleevi 2014-07-22 21:49:16 +0000 The per-algorithm definitions for import key traditionally include a 'usages' check to ensure that the caller's supplied set of usages intersects with the set of operations defined for that algorithm. For example, an attempt to generateKey for RSASSA-PKCS1-v1_5 with usages of ["encrypt", "decrypt"] will fail, because of Step 1 of the "Generate Key" phase in https://dvcs.w3.org/hg/webcrypto-api/raw-file/ee10c81e1141/spec/Overview.html#rsassa-pkcs1-operations However, attempting to importKey with the same usages will, presumably, succeed. This is not true for all algorithms. For example, AES-CTR ( https://dvcs.w3.org/hg/webcrypto-api/raw-file/ee10c81e1141/spec/Overview.html#aes-ctr-operations ) has checks for usages as Step 2 of Generate Key and Step 1 of Import Key. 110891 1 rlb 2014-09-02 23:53:28 +0000 In addition, the errors returned by these methods in the case of unrecognized usages are different. generateKey -> InvalidAccessError deriveKey -> SyntaxError importKey -> SyntaxError By majority rule, it seems we should change generateKey to SyntaxError. That also seems to make sense, compared to, say, how unrecognized format values are handled. 112058 2 watsonm 2014-09-24 01:21:22 +0000 SyntaxError seems appropriate here: "A required parameter was missing or out-of-range" Usage checking should be provided consistently for all algorithms for importKey and generateKey operations. In the import case the checking may be dependent on the key type (public/private). 112225 3 watsonm 2014-09-26 00:44:17 +0000 https://dvcs.w3.org/hg/webcrypto-api/rev/d461dd0a2bdd https://dvcs.w3.org/hg/webcrypto-api/rev/13846e3198f6 https://dvcs.w3.org/hg/webcrypto-api/rev/ac6406fe7075