HkdfParamsWeb Crypto API algorithmSubtleCrypto.deriveKey()HKDF
Properties
name- A
DOMString. This should be set toHKDF. hash- A
DOMStringrepresenting the digest algorithm to use. This may be one of:
SHA-1SHA-256SHA-384SHA-512
salt- A
BufferSource. The HKDF specification states that adding salt "adds significantly to the strength of HKDF". Ideally, the salt is a random or pseudo-random value with the same length as the output of the digest function. Unlike the input key material passed intoderiveKey(), salt does not need to be kept secret. info- A
BufferSourcerepresenting application-specific contextual information. This is used to bind the derived key to an application or context, and enables you to derive different keys for different contexts while using the same input key material. It's important that this should be independent of the input key material itself. This property is required but may be an empty buffer.
Examples
See the examples for SubtleCrypto.deriveKey().
Specifications
| Specification | Status | Comment |
| Web Cryptography APIThe definition of 'SubtleCrypto.HkdfParams' in that specification. | Recommendation |
Browser compatibility
Browsers that support the "HKDF" algorithm for the SubtleCrypto.deriveKey() method will support this type.
See also
HkdfParams by Mozilla Contributors is licensed under CC-BY-SA 2.5.
