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LockHashAlgorithm.ts
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LockHashAlgorithm.ts
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/*
* Copyright 2018 NEM
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* Hash type. Supported types are:
* 0: Op_Sha3_256 (default).
* 1: Op_Keccak_256 (ETH compatibility).
* 2: Op_Hash_160 (first with SHA-256 and then with RIPEMD-160 (BTC compatibility))
* 3: Op_Hash_256: input is hashed twice with SHA-256 (BTC compatibility)
*/
import { Convert as convert } from '../../core/format';
export enum LockHashAlgorithm {
Op_Sha3_256 = 0,
Op_Hash_160 = 1,
Op_Hash_256 = 2,
}
/**
* Validate the hash length
* @param hashAlgorithm Secret lock hash algorithm
* @param input Hashed value
* @returns {boolean}
*/
export function LockHashAlgorithmLengthValidator(hashAlgorithm: LockHashAlgorithm, input: string): boolean {
if (convert.isHexString(input)) {
switch (hashAlgorithm) {
case LockHashAlgorithm.Op_Sha3_256:
case LockHashAlgorithm.Op_Hash_256:
return input.length === 64;
case LockHashAlgorithm.Op_Hash_160:
return input.length === 40 || input.length === 64;
default:
break;
}
}
return false;
}