Crypto manager: add methods to encrypt/decrypt from/to bytes.

master
Tom Hacohen 7 years ago
parent fb738622fe
commit 45db0c12c5

@ -48,21 +48,37 @@ export class CryptoManager {
this.hmacKey = hmac256(sjcl.codec.utf8String.toBits('hmac'), this.key);
}
encrypt(content: string): byte[] {
encryptBits(content: number[]): byte[] {
const iv = sjcl.random.randomWords(this.cipherWords);
let prp = new sjcl.cipher.aes(this.cipherKey);
let cipherText = sjcl.mode.cbc.encrypt(prp, sjcl.codec.utf8String.toBits(content), iv);
let cipherText = sjcl.mode.cbc.encrypt(prp, content, iv);
return sjcl.codec.bytes.fromBits(iv.concat(cipherText));
}
decrypt(content: byte[]): string {
decryptBits(content: byte[]): number[] {
let cipherText = sjcl.codec.bytes.toBits(content);
const iv = cipherText.splice(0, this.cipherWords);
let prp = new sjcl.cipher.aes(this.cipherKey);
let clearText = sjcl.mode.cbc.decrypt(prp, cipherText, iv);
return sjcl.codec.utf8String.fromBits(clearText);
return clearText;
}
encryptBytes(content: byte[]): byte[] {
return this.encryptBits(sjcl.codec.bytes.toBits(content));
}
decryptBytes(content: byte[]): byte[] {
return sjcl.codec.bytes.fromBits(this.decryptBits(content));
}
encrypt(content: string): byte[] {
return this.encryptBits(sjcl.codec.utf8String.toBits(content));
}
decrypt(content: byte[]): string {
return sjcl.codec.utf8String.fromBits(this.decryptBits(content));
}
hmac(content: byte[]): byte[] {

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