Crate crypto_hmac 

HMAC (RFC 2104 / FIPS 198-1) over SHA-256, SHA-384, and SHA-512.

The native and wasm lanes intentionally use the same audited RustCrypto implementation for byte-for-byte semantics.

Structs

HmacKey

HMAC key material.

HmacTag

HMAC authentication tag bytes.

Constants

HMAC_MAX_KEY_LENGTH

Maximum accepted HMAC key length in bytes.

HMAC_SHA256_TAG_LENGTH

Length in bytes of an HMAC-SHA-256 tag.

HMAC_SHA384_TAG_LENGTH

Length in bytes of an HMAC-SHA-384 tag.

HMAC_SHA512_TAG_LENGTH

Length in bytes of an HMAC-SHA-512 tag.