webssh2-server
Version:
A Websocket to SSH2 gateway using xterm.js, socket.io, ssh2
39 lines (38 loc) • 1.4 kB
JavaScript
// app/config/algorithm-presets.ts
// Pure data module for SSH algorithm presets
/**
* Predefined SSH algorithm presets for different security profiles
* @pure
*/
export const ALGORITHM_PRESETS = {
modern: {
cipher: ['aes256-gcm@openssh.com', 'aes128-gcm@openssh.com', 'aes256-ctr', 'aes128-ctr'],
kex: ['ecdh-sha2-nistp256', 'ecdh-sha2-nistp384', 'ecdh-sha2-nistp521'],
hmac: ['hmac-sha2-256', 'hmac-sha2-512'],
compress: ['none', 'zlib@openssh.com'],
serverHostKey: ['ecdsa-sha2-nistp256', 'ecdsa-sha2-nistp384', 'ecdsa-sha2-nistp521', 'ssh-rsa'],
},
legacy: {
cipher: ['aes256-cbc', 'aes192-cbc', 'aes128-cbc', '3des-cbc'],
kex: ['diffie-hellman-group14-sha1', 'diffie-hellman-group1-sha1'],
hmac: ['hmac-sha1', 'hmac-md5'],
compress: ['none', 'zlib'],
serverHostKey: ['ssh-rsa', 'ssh-dss'],
},
strict: {
cipher: ['aes256-gcm@openssh.com'],
kex: ['ecdh-sha2-nistp256'],
hmac: ['hmac-sha2-256'],
compress: ['none'],
serverHostKey: ['ecdsa-sha2-nistp256'],
},
};
/**
* Get algorithm preset by name
* @param presetName - Name of the preset (modern, legacy, strict)
* @returns Algorithm configuration or undefined if not found
* @pure
*/
export function getAlgorithmPreset(presetName) {
return ALGORITHM_PRESETS[presetName.toLowerCase()];
}