Google Authenticator

Website

support.google.com

$ Details

free

Categories

#Identity And Access Management #Authentication #Multi-factor Authentication #Two Factor Authentication

JSON Web Token

Website

jwt.io

$ Details

Categories

#Identity Provider #Identity And Access Management #SSO #Development

Google Authenticator features and specs

• Enhanced Security
  Google Authenticator adds an extra layer of security by requiring a second factor of authentication, reducing the risk of unauthorized access even if your password is compromised.
• Offline Access
  The app does not require an internet connection to generate codes, making it reliable in situations where connectivity is a concern.
• Compatibility
  Google Authenticator is compatible with a wide range of services and accounts, providing a versatile solution for multi-factor authentication (MFA).
• Free of Charge
  The application is free to use, offering robust security features without any financial investment.
• Ease of Use
  Setup and usage are straightforward, making it accessible to users without technical expertise.

Possible disadvantages of Google Authenticator

• Device Dependence
  If you lose your device, gaining access to your accounts can become challenging, particularly if you haven't backed up or used alternative methods.
• No Cloud Sync
  Google Authenticator does not offer a built-in feature for cloud backups, making it difficult to transfer codes to a new device.
• Single Device Limitation
  The app only works on a single device at a time, which can be inconvenient if you manage multiple devices.
• No Biometric Lock
  The app lacks advanced security features such as biometric locks, which are present in some other authenticator apps.
• Limited Recovery Options
  In case of losing access to the app, recovery options rely heavily on the user having access to backup codes, which might not always be accessible.

JSON Web Token features and specs

• Stateless
  Since JWTs are self-contained, they do not require server-side sessions, enabling stateless authentication and reducing server memory usage.
• Scalability
  JWTs can easily be used in distributed systems and microservices architectures due to their stateless nature, facilitating horizontal scaling.
• Decentralized Issuance
  Multiple issuers can create and sign their own tokens, allowing for more decentralized and flexible authentication mechanisms.
• Performance
  JWTs eliminate the need for database lookups during authenticating requests, as the token contains all the necessary information, which can lead to performance improvements.
• Cross-domain and Mobile Compatible
  JWTs are widely supported by different platforms and can easily be used in cross-domain situations and with mobile applications.
• Security
  JWTs can be signed and optionally encrypted, ensuring the authenticity and integrity of the data they carry.

Possible disadvantages of JSON Web Token

• Size
  JWTs tend to be larger than session IDs, which can increase the amount of data transmitted during requests.
• Expiration Handling
  Managing token expiration can be complex. Once a token is issued, it remains valid until it expires or is explicitly revoked.
• No Built-in Revocation
  Unlike sessions, JWTs cannot be easily revoked server-side, making it difficult to immediately invalidate tokens without additional mechanisms.
• Security Risks
  If a JWT is intercepted or compromised, it can be used until it expires. Thus, it should be properly secured and transmitted over HTTPS.
• Token Overhead
  Embedding too much information in the token payload can lead to performance overhead and potential data exposure risks.
• Complexity
  Implementing JWT correctly requires a thorough understanding of security practices and token lifecycle management, which can add complexity to the system.

How to Use Google Authenticator

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JSON Web Tokens Suck - Randall Degges (DevNet Create 2018)

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