Multiformats BLAKE2 implementations
$ npm i @multiformats/blake2
MultihashHashers
s are exported from this library, they produce MultihashDigest
s. Details about these can be found in the multiformats multihash interface definitions.
import * as Block from 'multiformats/block' import * as codec from '@ipld/dag-cbor' import { blake2b256 as hasher } from '@multiformats/blake2/blake2b' async function run () { const value = { hello: 'world' } const block = await Block.encode({ value, hasher, codec }) console.log(block.cid) // -> CID(bafy2bzacedtxqx7k666ugf5mmagr2fxmbpfncbcji5jfg5uduausgb62y3av4) } run().catch(console.error)
The @multiformats/blake2/blake2b
package exports blake2bX
MultihashHasher
s, where X
is the output length in bits. The Multicodecs table defines 64 different output lengths for BLAKE2b, from 8
to 512
.
The @multiformats/blake2/blake2s
package exports blake2sX
MultihashHasher
s, where X
is the output length in bits. For BLAKE2s, there are 32 different output lengths, from 8
to 256
.
e.g. blake2b-256
, multicodec code 0xb220
, may be imported as:
import { blake2b256 } from '@multiformats/blake2/blake2b'
while blake2s-256
, multicodec code 0xb260
, may be imported as:
import { blake2s256 } from '@multiformats/blake2/blake2s'
Licensed under either of
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
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