feat(std/hash): add sha3 (#5558)

1 files changed, 54 insertions, 0 deletions

diff --git a/std/hash/_sha3/sha3.ts b/std/hash/_sha3/sha3.ts
new file mode 100644
index 000000000..393889210
--- /dev/null
+++ b/std/hash/_sha3/sha3.ts
@@ -0,0 +1,54 @@
+// Copyright 2018-2020 the Deno authors. All rights reserved. MIT license.
+
+import { Sponge } from "./sponge.ts";
+import { keccakf } from "./keccakf.ts";
+
+/* eslint-disable @typescript-eslint/camelcase, @typescript-eslint/class-name-casing */
+
+/** Sha3-224 hash */
+export class Sha3_224 extends Sponge {
+  constructor() {
+    super({
+      bitsize: 224,
+      rate: 144,
+      dsbyte: 6,
+      permutator: keccakf,
+    });
+  }
+}
+
+/** Sha3-256 hash */
+export class Sha3_256 extends Sponge {
+  constructor() {
+    super({
+      bitsize: 256,
+      rate: 136,
+      dsbyte: 6,
+      permutator: keccakf,
+    });
+  }
+}
+
+/** Sha3-384 hash */
+export class Sha3_384 extends Sponge {
+  constructor() {
+    super({
+      bitsize: 384,
+      rate: 104,
+      dsbyte: 6,
+      permutator: keccakf,
+    });
+  }
+}
+
+/** Sha3-512 hash */
+export class Sha3_512 extends Sponge {
+  constructor() {
+    super({
+      bitsize: 512,
+      rate: 72,
+      dsbyte: 6,
+      permutator: keccakf,
+    });
+  }
+}