A simple Toolkit to act as a GPG Creator / Signer / Verifier. This abstracts the use of the GPG and makes easy to sign / verify any GPG document using just a POST request.

Usage

• Getting Started
• Creating GPG Keys
• Setting up Keys
• Listing loaded private keys
• Unlock Private Key
• Signing Data
• Listing cached public keys
• Verifying Signatures
• Encrypting Data
• Decrypting Data

Advanced Usage

• Cluster Mode
• Vault Backend
• Quanto Agent
• Binary Builds
• Docker
• Building

Where is AgentUI??

Agent-UI project has been moved to a separated repository. Check https://github.com/quan-to/agent-ui

Environment Variables for Remote Signer

These are the Environment Variables that you can set to manage the webserver:

Common Configuration

• PRIVATE_KEY_FOLDER => Folder to load / store encrypted private keys. (defaults to './keys')
• MAX_KEYRING_CACHE_SIZE => Maximum Number of Public Keys to cache (does not include Private Keys derived Public Keys). (defaults to 1000)
• SHOW_LINES => Show filename and lines in logs
• REQUESTID_HEADER => Header field to get request ID
• LOG_FORMAT => Change log format (default is pipe delimited, provide the value json to log in JSON format)
• SKS_SERVER => SKS Server to fetch / put public keys. (defaults to 'http://pgp.mit.edu/')
• KEY_PREFIX => Prefix of the name of the keys to load (for example a key prefix test_ will load any key named test_XXXX).
• MODE => Mode of remote-signer (single_key, default)
• ON_DEMAND_KEY_LOAD => Do not attempt to load all keys from keybackend. Load them as needed (defaults false)
• ENABLE_SWAGGER => Enables swagger on /swagger for Remote Signer. (defaults to true)
• SET_EXPOSED_SERVICES => Enable only services described by EXPOSED_SERVICES
• EXPOSED_SERVICES => List of comma separated values with the services that should be exposed
  • __internal => /__internal endpoint (needed for cluster key password sharing)
  • gpg => /gpg endpoint
  • tests => /tests endpoint
  • keyRing => /keyRing endpoint
  • sks => /sks endpoint
  • fieldCipher => /fieldCipher endpoint
  • pks => /pks endpoint
  • agent => /agent endpoint
  • agentAdmin => /agentAdmin endpoint
  • graphiql => /graphiql and /assets endpoints
  • agent => /agent endpoint

Caching Configuration

Remote Signer can use REDIS as a caching layer for GPG Keys and Tokens. If enabled, it also does some in-memory local caching with a smaller TTL. To enable, use the following environment variables:

• REDIS_ENABLE => true if should be enabled (default: false)
• REDIS_TLS_ENABLED => true if TLS is enabled (default: false)
• REDIS_HOST => Hostname of the REDIS server (default: localhost:6379)
• REDIS_USER => Username of the REDIS server
• REDIS_PASS => Password of the REDIS server
• REDIS_MAX_LOCAL_TTL => Max local object TTL (in golang duration format): default: 5m
• REDIS_MAX_LOCAL_OBJECTS => Max local objects (default: 100)
• REDIS_CLUSTER_MODE => If the redis host is running in cluster mode. (default: false)

Agent Configuration

• AGENT_TARGET_URL => Target URL for Quanto Agent (defaults to https://quanto-api.com.br/all)
• AGENT_KEY_FINGERPRINT => Default Key FingerPrint for Agent
• AGENT_BYPASS_LOGIN => If the Login for using Quanto Agent should be bypassed. DO NOT USE THIS IN EXPOSED REMOTESIGNER
• AGENT_EXTERNAL_URL => External URL used by GraphiQL to access agent. Defaults to /agent
• AGENT_FORCE_URL => If true, forces agent URL to be the value defined by AGENT_TARGET_URL
• AGENTADMIN_EXTERNAL_URL => External URL used by GraphiQL to access agent admin. Defaults to /agentAdmin
• READONLY_KEYPATH => If the keypath is readonly. If true then it will create a temporary folder in /tmp and copy all keys to there so it can work over it.
• HTTP_PORT => HTTP Port that Remote Signer will run
• Single Key Mode (MODE=single_key)
  • SINGLE_KEY_PATH => Path for the key to load as private key
  • SINGLE_KEY_PASSWORD => Password of the key to load as private key

Cluster Mode Variables

• MASTER_GPG_KEY_PATH => Master GPG Key Path
• MASTER_GPG_KEY_PASSWORD_PATH => Master GPG Key Password Path
• MASTER_GPG_KEY_BASE64_ENCODED => If the Master GPG Key is base64 encoded (default: true)
• SYSLOG_IP => IP of the Syslog Server to send Console Messages (defaults to '127.0.0.1') Does not apply for Windows
• SYSLOG_FACILITY => Facility of the Syslog to use. (defaults to 'LOG_USER')

Hashicorp Vault Key Backend Environment

• VAULT_STORAGE => If a Hashicorp Vault should be used to store private keys instead of the disk (defaults false)
• VAULT_ADDRESS => Hashicorp Vault URL
• VAULT_SKIP_VERIFY => Hashicorp Vault Skip Verify SSL Certs on Connection
• VAULT_ROOT_TOKEN => Hashicorp Vault Root Token
• VAULT_TOKEN_TTL => Hashicorp Vault Token TTL (for example 24h, default is 768h. For more information see https://golang.org/pkg/time/#ParseDuration)
• VAULT_BACKEND => Hashicorp Vault Backend (for example secret)
• VAULT_NAMESPACE => if a Hashicorp Vault Namespace to use (appended to backend, for example if namespace is remote-signer the keys are stored under secret/remote-signer)

Database Configuration

• ENABLE_DATABASE => Enables using database for Key Store ( default: false )
• DATABASE_DIALECT => Dialect of the Database connection (postgres, rethinkdb. Defaults: none)
• CONNECTION_STRING => Connection string for the database.
• DATABASE_TOKEN_MANAGER => Use database connection to manage tokens
• DATABASE_AUTH_MANAGER => Use database connection to manage agent logins

Deprecated Environment Variables

RethinkDB Usage is deprecated and discouraged

• ENABLE_RETHINKDB_SKS => Enables Internal SKS Server using RethinkDB (default: false)
  • Use DATABASE_DIALECT=rethinkdb instead
• RETHINK_TOKEN_MANAGER => If a TokenManager using RethinkDB Should be used (defaults to false, uses MemoryTokenManager) [Requires ENABLE_RETHINK_SKS]
  • Use DATABASE_TOKEN_MANAGER instead
• RETHINK_AUTH_MANAGER => If a AuthManager using RethinkDB Should be used (defaults to false, uses JSONAuthManager) [Requires ENABLE_RETHINK_SKS]
  • Use DATABASE_AUTH_MANAGER instead
• RETHINKDB_HOST => Hostname of RethinkDB Server (default: "rethinkdb")
• RETHINKDB_USERNAME => Username of RethinkDB Server (default "admin")
• RETHINKDB_PASSWORD => Password of RethinKDB Server
• RETHINKDB_PORT => Port of RethinkDB Server (default 28015)
• DATABASE_NAME => RethinkDB Database Name (default "remote_signer")