alg

IESG

Registry Context

The optional JWK `alg` parameter identifies the algorithm intended for use with the key. Its value is a case-sensitive ASCII string.

Technical Summary

The JWK `alg` member identifies the algorithm intended for use with the key. Its value is a case-sensitive ASCII string, and use of the member is OPTIONAL.

When Used

When indicating the algorithm intended for use with a JWK.

Normative Requirements

Unspecified actor

OPTIONAL

RFC 7517 - Section 4.4
Include the `alg` member..
Use of this member is OPTIONAL.

Validation Guidance

error

If present, check that `alg` is an ASCII string.

error

Preserve the exact case of `alg` and perform case-sensitive comparisons.

info

Allow JWKs without an `alg` member.

Reference

RFC7517 - Section 4.4

Details

Entry Id: alg
Parameter Name: alg
Parameter Description: Algorithm
Used With Kty Value: *
Parameter Information Class: Public
Change Controller: IESG
Reference: RFC7517 - Section 4.4