Struct ring::digest::Algorithm [−] [src]

pub struct Algorithm {
    pub output_len: usize,
    pub chaining_len: usize,
    pub block_len: usize,
    pub nid: int,
    // some fields omitted
}

A digest algorithm.

C analog: EVP_MD

Fields

`output_len`	C analog: `EVP_MD_size`
`chaining_len`	The size of the chaining value of the digest function, in bytes. For non-truncated algorithms (SHA-1, SHA-256, SHA-512), this is equal to `output_len`. For truncated algorithms (e.g. SHA-384, SHA-512/256), this is equal to the length before truncation. This is mostly helpful for determining the size of an HMAC key that is appropriate for the digest algorithm.
`block_len`	C analog: `EVP_MD_block_size`
`nid`	The OpenSSL/BoringSSL NID for the algorithm. For all the algorithms defined in this module, `a.nid == b.nid` implies that `a` and `b` are references to the same algorithm.