Required key material for an HMAC-family secret, in bytes.
32 bytes = 256 bits = the output width of SHA-256, which is the most a
HS256 key can contribute. RFC 7518 ยง3.2 states the requirement directly:
"A key of the same size as the hash output ... or larger MUST be used."
Required key material for an HMAC-family secret, in bytes.
32 bytes = 256 bits = the output width of SHA-256, which is the most a HS256 key can contribute. RFC 7518 ยง3.2 states the requirement directly: "A key of the same size as the hash output ... or larger MUST be used."