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crypto function implementations for hash

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This commit is contained in:
Kyle Spearrin
2018-04-17 15:59:38 -04:00
parent d6474aee0e
commit 5d085b74f5
3 changed files with 67 additions and 40 deletions
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33
src/services/nodeCryptoFunction.service.ts
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@@ -5,20 +5,8 @@ import { CryptoFunctionService } from '../abstractions/cryptoFunction.service';
export class NodeCryptoFunctionService implements CryptoFunctionService {
async pbkdf2(password: string | ArrayBuffer, salt: string | ArrayBuffer, algorithm: 'sha256' | 'sha512',
iterations: number, length: number): Promise<ArrayBuffer> {
let nodePassword: string | Buffer;
if (typeof (password) === 'string') {
nodePassword = password;
} else {
nodePassword = Buffer.from(new Uint8Array(password) as any);
}
let nodeSalt: string | Buffer;
if (typeof (salt) === 'string') {
nodeSalt = salt;
} else {
nodeSalt = Buffer.from(new Uint8Array(salt) as any);
}
const nodePassword = this.toNodeValue(password);
const nodeSalt = this.toNodeValue(salt);
return new Promise<ArrayBuffer>((resolve, reject) => {
crypto.pbkdf2(nodePassword, nodeSalt, iterations, length, algorithm, (error, key) => {
if (error != null) {
@@ -29,4 +17,21 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
});
});
}
async hash(value: string | ArrayBuffer, algorithm: 'sha1' | 'sha256' | 'sha512'): Promise<ArrayBuffer> {
const nodeValue = this.toNodeValue(value);
const hash = crypto.createHash(algorithm);
hash.update(nodeValue);
return hash.digest().buffer;
}
private toNodeValue(value: string | ArrayBuffer): string | Buffer {
let nodeValue: string | Buffer;
if (typeof (value) === 'string') {
nodeValue = value;
} else {
nodeValue = Buffer.from(new Uint8Array(value) as any);
}
return nodeValue;
}
}