How can i read a binary like bellow ?
Binary2 {
sub_type: 0,
buffer: Buffer(16) [
12, 15, 64, 88, 174, 93,
16, 250, 162, 5, 122, 223,
16, 98, 207, 68
],
position: 16
}
I tried several things like making a parseInt:
error:
NaN
or with new Uint16Array():
error:
error: TS2769 [ERROR]: No overload matches this call.
The last overload gave the following error.
Argument of type 'string' is not assignable to parameter of type 'ArrayBufferLike'.
console.log('test :', new Uint16Array(contact.firstname))
TS2771 [ERROR]: The last overload is declared here.
new(buffer: ArrayBufferLike, byteOffset?: number, length?: number): Uint16Array;
Someone can help me to read the buffer of this binary and decrypt my aes data ?
You not really specified the file format, for this case I created a code, you can modify if you need to for other cases (My code now just extracting the numbers from "[" to "]" with StrBetween):
function StrBetween(str, s1, s2){
let pos1 = str.indexOf(s1);
if(pos1>-1){
pos1 += s1.length;
return str.substr(pos1, str.indexOf(s2, pos1)-pos1);
} else {
return "";
}
}
function Convert(){
var data = `
Binary2 {
sub_type: 0,
buffer: Buffer(16) [
12, 15, 64, 88, 174, 93,
16, 250, 162, 5, 122, 223,
16, 98, 207, 68
],
position: 16
}
`;
let values = StrBetween(data, "[", "]").split(",");
var uint16 = new Uint16Array(values.length);
for(let i=0; i<values.length; i++){
values[i] = values[i].replace('\n','').trim(); //Remove line breaks and spaces
uint16[i] = parseInt(values[i]);
}
console.log(uint16); //Show the array
}
Ok,i'm stupid. I found the solution.
1. Encrypt and set data with hex() in mongoDB like this :
let firstname = await aes.encrypt(data.fields.firstname)
data.fields.firstname = firstname.hex()
2. String format data in mongoDB :
b9314d7b7f24e79bc08518e956f9125a
3. Transform hexadecimal string to bytes array and decrypt data from mongoDB :
for (var bytes = [], c = 0; c < contact.firstname.length; c += 2) {
bytes.push(parseInt(contact.firstname.substr(c, 2), 16));
}
let cipher = await aes.decrypt(new Uint8Array(bytes))
contact.firstname = cipher.toString()
thanks for your help !