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rsa encrypt and decrypt tests

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This commit is contained in:
Kyle Spearrin
2018-04-20 15:32:25 -04:00
parent 44f5d1c267
commit d73012efc8
5 changed files with 206 additions and 34 deletions
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33
src/services/webCryptoFunction.service.ts
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@@ -23,7 +23,7 @@ export class WebCryptoFunctionService implements CryptoFunctionService {
const passwordBytes = this.toByteString(password);
const saltBytes = this.toByteString(salt);
const derivedKeyBytes = (forge as any).pbkdf2(passwordBytes, saltBytes, iterations, forgeLen, algorithm);
return this.fromByteStringToBuf(derivedKeyBytes);
return Utils.fromByteStringToArray(derivedKeyBytes).buffer;
}
const wcLen = algorithm === 'sha256' ? 256 : 512;
@@ -54,7 +54,7 @@ export class WebCryptoFunctionService implements CryptoFunctionService {
const valueBytes = this.toByteString(value);
md.update(valueBytes, 'raw');
return this.fromByteStringToBuf(md.digest().data);
return Utils.fromByteStringToArray(md.digest().data).buffer;
}
const valueBuf = this.toBuf(value);
@@ -68,7 +68,7 @@ export class WebCryptoFunctionService implements CryptoFunctionService {
const hmac = (forge as any).hmac.create();
hmac.start(algorithm, keyBytes);
hmac.update(valueBytes);
return this.fromByteStringToBuf(hmac.digest().getBytes());
return Utils.fromByteStringToArray(hmac.digest().getBytes()).buffer;
}
const signingAlgorithm = {
@@ -94,7 +94,7 @@ export class WebCryptoFunctionService implements CryptoFunctionService {
decipher.start({ iv: ivBytes });
decipher.update(dataBuffer);
decipher.finish();
return this.fromByteStringToBuf(decipher.output.getBytes());
return Utils.fromByteStringToArray(decipher.output.getBytes()).buffer;
}
async aesDecryptLarge(data: ArrayBuffer, iv: ArrayBuffer, key: ArrayBuffer): Promise<ArrayBuffer> {
@@ -102,14 +102,25 @@ export class WebCryptoFunctionService implements CryptoFunctionService {
return await this.subtle.decrypt({ name: 'AES-CBC', iv: iv }, impKey, data);
}
async rsaDecrypt(data: ArrayBuffer, key: ArrayBuffer, algorithm: 'sha1' | 'sha256'): Promise<ArrayBuffer> {
async rsaEncrypt(data: ArrayBuffer, publicKey: ArrayBuffer, algorithm: 'sha1' | 'sha256'): Promise<ArrayBuffer> {
// Note: Edge browser requires that we specify name and hash for both key import and decrypt.
// We cannot use the proper types here.
const rsaParams = {
name: 'RSA-OAEP',
hash: { name: this.toWebCryptoAlgorithm(algorithm) },
};
const impKey = await this.subtle.importKey('pkcs8', key, rsaParams, false, ['decrypt']);
const impKey = await this.subtle.importKey('spki', publicKey, rsaParams, false, ['encrypt']);
return await this.subtle.encrypt(rsaParams, impKey, data);
}
async rsaDecrypt(data: ArrayBuffer, privateKey: ArrayBuffer, algorithm: 'sha1' | 'sha256'): Promise<ArrayBuffer> {
// Note: Edge browser requires that we specify name and hash for both key import and decrypt.
// We cannot use the proper types here.
const rsaParams = {
name: 'RSA-OAEP',
hash: { name: this.toWebCryptoAlgorithm(algorithm) },
};
const impKey = await this.subtle.importKey('pkcs8', privateKey, rsaParams, false, ['decrypt']);
return await this.subtle.decrypt(rsaParams, impKey, data);
}
@@ -134,19 +145,11 @@ export class WebCryptoFunctionService implements CryptoFunctionService {
if (typeof (value) === 'string') {
bytes = forge.util.encodeUtf8(value);
} else {
bytes = String.fromCharCode.apply(null, new Uint8Array(value));
bytes = Utils.fromBufferToByteString(value);
}
return bytes;
}
private fromByteStringToBuf(byteString: string): ArrayBuffer {
const arr = new Uint8Array(byteString.length);
for (let i = 0; i < byteString.length; i++) {
arr[i] = byteString.charCodeAt(i);
}
return arr.buffer;
}
private toWebCryptoAlgorithm(algorithm: 'sha1' | 'sha256' | 'sha512'): string {
return algorithm === 'sha1' ? 'SHA-1' : algorithm === 'sha256' ? 'SHA-256' : 'SHA-512';
}