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misc utils for browser and node

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This commit is contained in:
Kyle Spearrin
2018-04-20 10:59:55 -04:00
parent 171fbb0785
commit 3b2b48dd8d
5 changed files with 118 additions and 38 deletions
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18
src/services/nodeCryptoFunction.service.ts
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@@ -14,7 +14,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
if (error != null) {
reject(error);
} else {
resolve(key.buffer);
resolve(this.toArrayBuffer(key));
}
});
});
@@ -24,7 +24,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
const nodeValue = this.toNodeValue(value);
const hash = crypto.createHash(algorithm);
hash.update(nodeValue);
return Promise.resolve(hash.digest().buffer);
return Promise.resolve(this.toArrayBuffer(hash.digest()));
}
hmac(value: ArrayBuffer, key: ArrayBuffer, algorithm: 'sha1' | 'sha256' | 'sha512'): Promise<ArrayBuffer> {
@@ -32,7 +32,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
const nodeKey = this.toNodeBuffer(value);
const hmac = crypto.createHmac(algorithm, nodeKey);
hmac.update(nodeValue);
return Promise.resolve(hmac.digest().buffer);
return Promise.resolve(this.toArrayBuffer(hmac.digest()));
}
aesEncrypt(data: ArrayBuffer, iv: ArrayBuffer, key: ArrayBuffer): Promise<ArrayBuffer> {
@@ -41,7 +41,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
const nodeKey = this.toNodeBuffer(key);
const cipher = crypto.createCipheriv('aes-256-cbc', nodeKey, nodeIv);
const encBuf = Buffer.concat([cipher.update(nodeData), cipher.final()]);
return Promise.resolve(encBuf.buffer);
return Promise.resolve(this.toArrayBuffer(encBuf));
}
aesDecryptSmall(data: ArrayBuffer, iv: ArrayBuffer, key: ArrayBuffer): Promise<ArrayBuffer> {
@@ -54,7 +54,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
const nodeKey = this.toNodeBuffer(key);
const decipher = crypto.createDecipheriv('aes-256-cbc', nodeKey, nodeIv);
const decBuf = Buffer.concat([decipher.update(nodeData), decipher.final()]);
return Promise.resolve(decBuf.buffer);
return Promise.resolve(this.toArrayBuffer(decBuf));
}
rsaDecrypt(data: ArrayBuffer, key: ArrayBuffer, algorithm: 'sha1' | 'sha256'): Promise<ArrayBuffer> {
@@ -68,7 +68,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
padding: constants.RSA_PKCS1_OAEP_PADDING,
};
const decBuf = crypto.publicDecrypt(rsaKey, nodeData);
return Promise.resolve(decBuf.buffer);
return Promise.resolve(this.toArrayBuffer(decBuf));
}
randomBytes(length: number): Promise<ArrayBuffer> {
@@ -77,7 +77,7 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
if (error != null) {
reject(error);
} else {
resolve(bytes.buffer);
resolve(this.toArrayBuffer(bytes));
}
});
});
@@ -97,6 +97,10 @@ export class NodeCryptoFunctionService implements CryptoFunctionService {
return Buffer.from(new Uint8Array(value) as any);
}
private toArrayBuffer(buf: Buffer): ArrayBuffer {
return new Uint8Array(buf).buffer;
}
private toPem(key: ArrayBuffer): string {
const b64Key = ''; // TODO: key to b84
return '-----BEGIN PRIVATE KEY-----\n' + b64Key + '\n-----END PRIVATE KEY-----';