Set the key_ops attribute of jwk to equivalent the usages attribute of important. Set the ext attribute of jwk to equivalent the [[extractable]] interior slot of important. Let final result be the result of changing jwk to an ECMAScript Object, as described by [WebIDL]. Normally:
A conforming user agent MUST help not less than the subset from the functionality described in HTML that this specification depends upon; specifically, it Will have to guidance the ArrayBufferView typedef and the structured clone algorithm. [HTML] Net IDL
When the "ext" discipline of jwk is current and has the value false and extractable is legitimate, then throw a DataError. Allow namedCurve become a string whose worth is equal on the "crv" industry of jwk. If namedCurve is not equivalent towards the namedCurve member of normalizedAlgorithm, toss a DataError. If namedCurve is "P-256", "P-384" or "P-521": Should the "d" area is current:
Permit essential be the CryptoKey to become exported. Should the fundamental cryptographic important materials represented from the [[manage]] inner slot of key can't be accessed, then throw an OperationError. If structure is "spki":
If usages contains a value which isn't "sign" then throw a SyntaxError. Let privateKeyInfo be the results of managing the parse a privateKeyInfo algorithm in excess of keyData. If an error occurs though parsing, then throw a DataError. When the algorithm object identifier industry of your privateKeyAlgorithm PrivateKeyAlgorithm area of privateKeyInfo isn't equivalent to your id-ecPublicKey object identifier described in RFC 5480, then toss a DataError. If your parameters discipline on the privateKeyAlgorithm PrivateKeyAlgorithmIdentifier discipline of privateKeyInfo will not be current, then throw a DataError.
When invoked, deriveKey MUST accomplish the following methods: Let algorithm, baseKey, derivedKeyType, extractable and usages be the algorithm, baseKey, derivedKeyType, extractable and keyUsages parameters passed for the deriveKey process, respectively. Let normalizedAlgorithm be the result of normalizing an algorithm, with alg set to algorithm and op set to "deriveBits". If an mistake transpired, return a Guarantee turned down with normalizedAlgorithm. Allow normalizedDerivedKeyAlgorithmImport be the result of normalizing an algorithm, with alg established to derivedKeyType and op set to "importKey". If an error transpired, return a Guarantee turned down with normalizedDerivedKeyAlgorithmImport. Allow normalizedDerivedKeyAlgorithmLength be the result of normalizing an algorithm, with alg set to derivedKeyType and op established to "get critical length". If an mistake transpired, return a Guarantee rejected with normalizedDerivedKeyAlgorithmLength. Permit promise be a completely new Guarantee. Return guarantee and asynchronously conduct the remaining methods.
Caution: Directors are recommended to use caution about processing load after they opt for IKE groups. Load will depend on platform constraints.
If hash is not really undefined: Permit normalizedHash be the result of normalize an algorithm with alg set to hash and op established to digest. If normalizedHash is not really equivalent on the hash member of normalizedAlgorithm, throw a DataError. In the event the "d" industry of jwk is current:
If usages will not be vacant then toss a SyntaxError. Allow spki be the result of running the parse a subjectPublicKeyInfo algorithm around keyData If an error happened while parsing, then toss a DataError. If the algorithm object identifier area on the algorithm AlgorithmIdentifier area of spki isn't equal to your id-ecPublicKey or id-ecDH object identifiers described in RFC 5480, then toss a DataError. If your parameters subject of your algorithm AlgorithmIdentifier area of spki is absent, then toss a DataError. Permit params be the parameters field with the algorithm AlgorithmIdentifier discipline of spki.
Allow ecPrivateKey be the results of executing the parse an ASN.one framework algorithm, with data as the privateKey discipline of privateKeyInfo, composition click over here because the ASN.1 ECPrivateKey composition specified in Area three of RFC 5915, and exactData established to legitimate. If an mistake transpired when parsing, then toss a DataError. Should the parameters area of ecPrivateKey is present, and isn't an instance in the namedCurve ASN.
Set the [[form]] internal slot of crucial to "community" Allow algorithm be a completely new EcKeyAlgorithm. Set the name attribute of algorithm to "ECDSA". Established the namedCurve attribute of algorithm to namedCurve. Established the [[algorithm]] inside slot of vital to algorithm. If structure is "pkcs8":
Takes advantage of for this API vary from person or company authentication, document or code signing, as well as the confidentiality and integrity of communications. Status of the Doc
Carry out any essential import techniques described by other applicable specs, passing format, jwk and getting hash. If an mistake happened or there won't be any relevant requirements, throw a DataError.
Should the "key_ops" industry of jwk is existing, which is invalid In line with the requirements of JSON Net Important or will not have all of the specified usages values, then toss a DataError. If your "ext" area of jwk is current and has the value false and extractable is genuine, then toss a DataError. Should the alg discipline of jwk isn't current: