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"use strict";
/* istanbul ignore if */
if (typeof (Buffer) === 'undefined') {
let Buffer = require('buffer/').Buffer;
}
module.exports = class CryptographyKey {
/**
* Note: We use Object.defineProperty() to hide the buffer inside of the
* CryptographyKey object to prevent accidental leaks.
*
* @param {Buffer} buf
*/
constructor(buf) {
if (!Buffer.isBuffer(buf)) {
throw new TypeError('Argument 1 must be an instance of Buffer.');
}
Object.defineProperty(this, 'buffer', {
enumerable: false,
value: buf.slice()
});
}
/**
* @return {CryptographyKey}
*/
static from() {
return new CryptographyKey(Buffer.from(...arguments));
}
/**
* @return {boolean}
*/
isEd25519Key() {
return false;
}
/**
* @return {boolean}
*/
isX25519Key() {
return false;
}
/**
* @return {boolean}
*/
isPublicKey() {
return false;
}
/**
* @return {Number}
*/
getLength() {
return this.buffer.length;
}
/**
* @return {Buffer}
*/
getBuffer() {
return this.buffer;
}
/**
* @param {string} encoding
*/
toString(encoding = 'utf-8') {
/* istanbul ignore if */
return this.getBuffer().toString(encoding);
}
/**
* @return {Buffer}
*/
slice() {
return this.buffer.slice(...arguments);
}
};
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