68,354 Authentication Vectors, Clipart, Icons, Backgrounds And Graphic Designs - Ready For Royalty Free Download From Dreamstime`s Creative Contributors.

Identity verification, biometrics, authentication, security systems, access control, digital privacy. Circle icon of a user, fingerprint and eye graphics. Identity verification and biometrics. Authentication vectors
Identity verification, biometrics, authentication, security systems, access control, digital privacy. Circle icon of a user, fingerprint and eye graphics. Identity verification and biometrics. Authentication vectors
Technology innovation, cybersecurity, high-definition media, authentication, engineering, identity. Gear symbol, fingerprint icon and HD video icon. Technology innovation and cybersecurity concept. Authentication vectors
Technology innovation, cybersecurity, high-definition media, authentication, engineering, identity. Gear symbol, fingerprint icon and HD video icon. Technology innovation and cybersecurity concept. Authentication vectors
Authentication, quality assurance, accreditation, professional standards, trust, digital verification. Blue checkmark badge and person with tablet. Authentication and quality assurance concepts. Authentication vectors
Authentication, quality assurance, accreditation, professional standards, trust, digital verification. Blue checkmark badge and person with tablet. Authentication and quality assurance concepts. Authentication vectors
Biometric Business logo provides a secure identity for companies prioritizing data protection, and this Biometric Business logo ensures trust. As a dedicated Biometric Business logo, the emblem effectively conveys authentication to clients seeking safety. Every Biometric Business logo features a protective, high-tech aesthetic suitable for cybersecurity firms, identity verification software, or IT enterprises needing a professional, clean, and strong visual mark. Authentication vectors
Biometric Business logo provides a secure identity for companies prioritizing data protection, and this Biometric Business logo ensures trust. As a dedicated Biometric Business logo, the emblem effectively conveys authentication to clients seeking safety. Every Biometric Business logo features a protective, high-tech aesthetic suitable for cybersecurity firms, identity verification software, or IT enterprises needing a professional, clean, and strong visual mark. Authentication vectors
Identity verification, communication, user engagement, social interaction, digital presence, authentication. A man pointing at a user icon with an abstract design. Identity verification. Authentication vectors
Identity verification, communication, user engagement, social interaction, digital presence, authentication. A man pointing at a user icon with an abstract design. Identity verification. Authentication vectors
Identity verification. Focused on secure identity authentication in online shopping. Identity verification ensures safe e-commerce practices. For cybersecurity, retail, fintech, business trends. Authentication vectors
Identity verification. Focused on secure identity authentication in online shopping. Identity verification ensures safe e-commerce practices. For cybersecurity, retail, fintech, business trends. Authentication vectors
Shopping carts increasing in size on a graph with an upward arrow, fingerprint authentication, security check icon, and a digital monitor. Ideal for e-commerce, growth, security, technology, data. Authentication vectors
Shopping carts increasing in size on a graph with an upward arrow, fingerprint authentication, security check icon, and a digital monitor. Ideal for e-commerce, growth, security, technology, data. Authentication vectors
Energy solutions, cybersecurity, biometric authentication, digital identity, technological innovation, data integrity. Blue lightning bolt next to a fingerprint. Energy solutions and cybersecurity. Authentication vectors
Energy solutions, cybersecurity, biometric authentication, digital identity, technological innovation, data integrity. Blue lightning bolt next to a fingerprint. Energy solutions and cybersecurity. Authentication vectors
Cloud-shaped element alongside profile recognition panel showing voice wave analysis. Ideal for technology, data storage, AI, cloud computing, user authentication, digital identity, simple flat. Authentication vectors
Cloud-shaped element alongside profile recognition panel showing voice wave analysis. Ideal for technology, data storage, AI, cloud computing, user authentication, digital identity, simple flat. Authentication vectors
Business growth, data scalability, time efficiency, technology infrastructure, user authentication, and digital management. Server racks, growth arrow clock user ID document. Data scalability. Authentication vectors
Business growth, data scalability, time efficiency, technology infrastructure, user authentication, and digital management. Server racks, growth arrow clock user ID document. Data scalability. Authentication vectors
Internet safety, online troubleshooting, website errors, user authentication, cybersecurity, and problem resolution. A URL form with a warning icon and a puzzled user. Internet safety and online. Authentication vectors
Internet safety, online troubleshooting, website errors, user authentication, cybersecurity, and problem resolution. A URL form with a warning icon and a puzzled user. Internet safety and online. Authentication vectors
Biometric fingerprint scanner showcasing security technology and access control for personal identification, verifying individual identity with advanced digital authentication. Authentication vectors
Biometric fingerprint scanner showcasing security technology and access control for personal identification, verifying individual identity with advanced digital authentication. Authentication vectors
Set of digital icons including envelope gear and fingerprint for web landing page banner. Cybersecurity, data protection, messaging, system settings, user authentication, identity verification. Mail. Authentication vectors
Set of digital icons including envelope gear and fingerprint for web landing page banner. Cybersecurity, data protection, messaging, system settings, user authentication, identity verification. Mail. Authentication vectors
Shield with checkmark symbolizing security, checklist form with profile picture indicating verification. Ideal for data protection, online security, privacy compliance, identity authentication. Authentication vectors
Shield with checkmark symbolizing security, checklist form with profile picture indicating verification. Ideal for data protection, online security, privacy compliance, identity authentication. Authentication vectors
Fingerprint icon portraying biometric scanning process for secure identification and authentication, illustrating digital identity verification and modern privacy technology for various applications. Authentication vectors
Fingerprint icon portraying biometric scanning process for secure identification and authentication, illustrating digital identity verification and modern privacy technology for various applications. Authentication vectors
Data security, access control, 3D printing, authentication tools, design processes, verification workflows. Pencil on checklist, 3D printer and key. Data security and access control concept. Authentication vectors
Data security, access control, 3D printing, authentication tools, design processes, verification workflows. Pencil on checklist, 3D printer and key. Data security and access control concept. Authentication vectors
Blockchain technology. Blockchain demonstrates secure connections for identity verification. Blockchain ensures digital identity safety and reliable authentication. For cybersecurity, IT, fintech. Authentication vectors
Blockchain technology. Blockchain demonstrates secure connections for identity verification. Blockchain ensures digital identity safety and reliable authentication. For cybersecurity, IT, fintech. Authentication vectors
Identity verification concept. Identity d through a magnifying glass highlighting personal data. Identity connects of strategy, security, decision-making, and authentication. For cybersecurity, HR. Authentication vectors
Identity verification concept. Identity d through a magnifying glass highlighting personal data. Identity connects of strategy, security, decision-making, and authentication. For cybersecurity, HR. Authentication vectors
Identity verification concept. Identity verification process with global connectivity and cloud computing. Identity applications for cybersecurity, online platforms, and data authentication tools. Authentication vectors
Identity verification concept. Identity verification process with global connectivity and cloud computing. Identity applications for cybersecurity, online platforms, and data authentication tools. Authentication vectors
Line graph with nodes highlights data flow. Person analyzing information near locked door. Ideal for security, analytics, access control, technology, problem-solving, privacy education. Simple flat. Authentication vectors
Line graph with nodes highlights data flow. Person analyzing information near locked door. Ideal for security, analytics, access control, technology, problem-solving, privacy education. Simple flat. Authentication vectors
Data protection, cybersecurity, global networks, authentication, user privacy, technological interaction. ion of globe, shield with checkmark and person using technology. Data protection. Authentication vectors
Data protection, cybersecurity, global networks, authentication, user privacy, technological interaction. ion of globe, shield with checkmark and person using technology. Data protection. Authentication vectors
Cybersecurity, identity authentication, secure systems, access control, data encryption, technology. Visible lock icon, fingerprint symbol and gear. Cybersecurity and identity authentication concept. Authentication vectors
Cybersecurity, identity authentication, secure systems, access control, data encryption, technology. Visible lock icon, fingerprint symbol and gear. Cybersecurity and identity authentication concept. Authentication vectors
Financial security concept. Features dollar symbol, shield with lock, and text icons. s secure transactions, money management, online safety, and data privacy. Perfect for fintech and cybersecurity. Authentication vectors
Financial security concept. Features dollar symbol, shield with lock, and text icons. s secure transactions, money management, online safety, and data privacy. Perfect for fintech and cybersecurity. Authentication vectors
Identity verification, cybersecurity, data protection, digital authentication, business growth, analytics. Face outline in focus, security shield upward arrows and chart. Identity verification. Authentication vectors
Identity verification, cybersecurity, data protection, digital authentication, business growth, analytics. Face outline in focus, security shield upward arrows and chart. Identity verification. Authentication vectors
Hand holding key next to user profile symbol and document icons illustrating data access, identity management, and cybersecurity. Ideal for authentication, technology, privacy, and online security. Authentication vectors
Hand holding key next to user profile symbol and document icons illustrating data access, identity management, and cybersecurity. Ideal for authentication, technology, privacy, and online security. Authentication vectors
Abstract vector logo designed for a digital identity platform, featuring a modern hexagon shape that symbolizes security, connectivity, and decentralized technology. The geometric construction represents blockchain networks, data encryption, and trusted digital ecosystems. Clean lines and scalable vector format make it ideal for Web3 startups, cybersecurity companies, fintech platforms, authentication systems, and AI-driven identity solutions. Suitable for corporate branding, app icons, website headers, and technology presentations. Authentication vectors
Abstract vector logo designed for a digital identity platform, featuring a modern hexagon shape that symbolizes security, connectivity, and decentralized technology. The geometric construction represents blockchain networks, data encryption, and trusted digital ecosystems. Clean lines and scalable vector format make it ideal for Web3 startups, cybersecurity companies, fintech platforms, authentication systems, and AI-driven identity solutions. Suitable for corporate branding, app icons, website headers, and technology presentations. Authentication vectors
Identity verification, workflow optimization, authentication, digital tools, business management, repair. A hand holding an ID card, calculator and wrench icon. Identity verification and workflow. Authentication vectors
Identity verification, workflow optimization, authentication, digital tools, business management, repair. A hand holding an ID card, calculator and wrench icon. Identity verification and workflow. Authentication vectors
Online security, digital transactions, financial safety, data encryption, payment authentication, e-commerce. Smartphone with a shield and password, money bag and working person. Cybersecurity. Authentication vectors
Online security, digital transactions, financial safety, data encryption, payment authentication, e-commerce. Smartphone with a shield and password, money bag and working person. Cybersecurity. Authentication vectors
Profile of person alongside padlock and cloud, representing privacy, cybersecurity, user control. Ideal for authentication, protection, online safety, encryption, confidentiality access management. Authentication vectors
Profile of person alongside padlock and cloud, representing privacy, cybersecurity, user control. Ideal for authentication, protection, online safety, encryption, confidentiality access management. Authentication vectors
Hand holding smartphone with verification checkmark, wireless signal, lock icon, and data chart. Ideal for cybersecurity, mobile payment, blockchain, online protection, finance authentication. Authentication vectors
Hand holding smartphone with verification checkmark, wireless signal, lock icon, and data chart. Ideal for cybersecurity, mobile payment, blockchain, online protection, finance authentication. Authentication vectors
Digital security elements with keyhole and hardware token vector illustration. Cybersecurity, data protection, authentication, privacy, encryption, safety. Electronic lock with access tools. Authentication vectors
Digital security elements with keyhole and hardware token vector illustration. Cybersecurity, data protection, authentication, privacy, encryption, safety. Electronic lock with access tools. Authentication vectors
An illustration depicting user accounts and a secured network, symbolizing cybersecurity and data protection. Ideal for privacy policies, online security, or IT infrastructure visuals. This vector emphasizes safe digital interactions and secure user authentication processes, vector design Generative AI. Authentication vectors
An illustration depicting user accounts and a secured network, symbolizing cybersecurity and data protection. Ideal for privacy policies, online security, or IT infrastructure visuals. This vector emphasizes safe digital interactions and secure user authentication processes, vector design Generative AI. Authentication vectors
Learning management, online education, digital platforms, cybersecurity, data management, authentication. Monitor displaying LMS interface elements with icons thumbs up text, image, fingerprint. Authentication vectors
Learning management, online education, digital platforms, cybersecurity, data management, authentication. Monitor displaying LMS interface elements with icons thumbs up text, image, fingerprint. Authentication vectors
Cybersecurity, digital identity, data protection, cloud storage, online authentication, technology concepts. Laptop beside fingerprint and cloud icons. Cybersecurity and digital identity emphasis. Authentication vectors
Cybersecurity, digital identity, data protection, cloud storage, online authentication, technology concepts. Laptop beside fingerprint and cloud icons. Cybersecurity and digital identity emphasis. Authentication vectors
Black and white icon illustrating an arrow entering an open door frame, representing concepts of logging in, entry, access, and authentication for web or app interfaces. Authentication vectors
Black and white icon illustrating an arrow entering an open door frame, representing concepts of logging in, entry, access, and authentication for web or app interfaces. Authentication vectors
Digital access, security scanning, QR processing, identity check, technology services, data authentication. Simple QR code and magnifying glass illustration. Digital access and security scanning. Authentication vectors
Digital access, security scanning, QR processing, identity check, technology services, data authentication. Simple QR code and magnifying glass illustration. Digital access and security scanning. Authentication vectors
Cybersecurity, identity protection, online security, data privacy, user authentication, personal safety. A shield with a padlock next to a user profile icon. Cybersecurity and identity protection. Authentication vectors
Cybersecurity, identity protection, online security, data privacy, user authentication, personal safety. A shield with a padlock next to a user profile icon. Cybersecurity and identity protection. Authentication vectors
This minimalist vector icon set features a central white padlock symbol, representing security and restricted access, flanked by left and right arrows within black rectangular shapes. The design visually conveys concepts of secure data flow, protected information, and controlled pathways. Ideal for user interface (UI) and user experience (UX) design, web applications, mobile apps, infographics, and presentations. It effectively illustrates digital security, privacy, authentication, or a secure transaction process in a clear, modern, and versatile black and white graphic. Authentication vectors
This minimalist vector icon set features a central white padlock symbol, representing security and restricted access, flanked by left and right arrows within black rectangular shapes. The design visually conveys concepts of secure data flow, protected information, and controlled pathways. Ideal for user interface (UI) and user experience (UX) design, web applications, mobile apps, infographics, and presentations. It effectively illustrates digital security, privacy, authentication, or a secure transaction process in a clear, modern, and versatile black and white graphic. Authentication vectors
3d blue digital key floating within a stream of data points. Secure access, encrypted information flow, digital authentication, identity verification, network security concept. Futuristic style Vector. Authentication vectors
3d blue digital key floating within a stream of data points. Secure access, encrypted information flow, digital authentication, identity verification, network security concept. Futuristic style Vector. Authentication vectors
Cloud computing, data security, digital transaction, authentication, remote access, online business. Blue cloud illustration, checkmark and person with laptop and dollar sign. Cloud computing. Authentication vectors
Cloud computing, data security, digital transaction, authentication, remote access, online business. Blue cloud illustration, checkmark and person with laptop and dollar sign. Cloud computing. Authentication vectors
A detailed illustration of a padlock featuring a visible keyhole, representing access control, safeguarding valuables, and robust security measures. Suitable for property protection, authentication systems, and confidential information, vector design Generere AI. Authentication vectors
A detailed illustration of a padlock featuring a visible keyhole, representing access control, safeguarding valuables, and robust security measures. Suitable for property protection, authentication systems, and confidential information, vector design Generere AI. Authentication vectors
Digital identity security graphics representing biometric verification user authentication digital credentials identity theft defense and secure online profile management. Authentication vectors
Digital identity security graphics representing biometric verification user authentication digital credentials identity theft defense and secure online profile management. Authentication vectors
Biometric security, identity verification, authentication, technology, personal data, access control. A hand with a gesture alongside a document and biometric shapes. Biometric security and identity. Authentication vectors
Biometric security, identity verification, authentication, technology, personal data, access control. A hand with a gesture alongside a document and biometric shapes. Biometric security and identity. Authentication vectors
Fingerprint scan on a card with a checkmark vector illustration. Biometric security, identity verification, digital access, data protection, mobile authentication, privacy. Thumbprint on a badge. Authentication vectors
Fingerprint scan on a card with a checkmark vector illustration. Biometric security, identity verification, digital access, data protection, mobile authentication, privacy. Thumbprint on a badge. Authentication vectors
Biometric security, digital technology, industrial automation, worker efficiency, supervision, data access. Worker with a tablet near fingerprint scan and automated device. Biometric security. Authentication vectors
Biometric security, digital technology, industrial automation, worker efficiency, supervision, data access. Worker with a tablet near fingerprint scan and automated device. Biometric security. Authentication vectors
Certificate animal health with heart pig and shield approval icon featuring veterinary, document, verification with validation and authentication elements for security, trust projects, clean. Authentication vectors
Certificate animal health with heart pig and shield approval icon featuring veterinary, document, verification with validation and authentication elements for security, trust projects, clean. Authentication vectors
Computer monitor presenting a digital fingerprint scan on its screen, illustrating biometric identification and secure access technology for data protection and information verification. Authentication vectors
Computer monitor presenting a digital fingerprint scan on its screen, illustrating biometric identification and secure access technology for data protection and information verification. Authentication vectors
Cybersecurity, password management, online privacy, authentication, data protection, secure login. Smartphone screen with a password field and shield lock icon alongside stylized blue leaves. Authentication vectors
Cybersecurity, password management, online privacy, authentication, data protection, secure login. Smartphone screen with a password field and shield lock icon alongside stylized blue leaves. Authentication vectors
Robotic surgery, biometric authentication, cloud computing, medical innovation, patient care, technology advancement. Robot operating on patient. Robotic surgery and biometric authentication concept. Authentication vectors
Robotic surgery, biometric authentication, cloud computing, medical innovation, patient care, technology advancement. Robot operating on patient. Robotic surgery and biometric authentication concept. Authentication vectors
Human avatar with process flow icons, actions, location pin, document scroll, and a shoe representing identity and operations. Ideal for authentication, workflow, process design, logistics UI. Authentication vectors
Human avatar with process flow icons, actions, location pin, document scroll, and a shoe representing identity and operations. Ideal for authentication, workflow, process design, logistics UI. Authentication vectors
Technology, biometric security, digital systems, authentication, system process, innovation. A gear, fingerprint and lines in a minimal design. Technology and biometric security concept. Authentication vectors
Technology, biometric security, digital systems, authentication, system process, innovation. A gear, fingerprint and lines in a minimal design. Technology and biometric security concept. Authentication vectors
Outline key icon on a solid black circular background symbolizing security, access, unlocking, authentication and permission for digital, cyber and privacy concepts. Authentication vectors
Outline key icon on a solid black circular background symbolizing security, access, unlocking, authentication and permission for digital, cyber and privacy concepts. Authentication vectors
Padlock being opened by key, hand drawn sketch symbolizing secure access, privacy protection and data safety for digital, online and network security concepts and authentication. Authentication vectors
Padlock being opened by key, hand drawn sketch symbolizing secure access, privacy protection and data safety for digital, online and network security concepts and authentication. Authentication vectors
Scissors cutting a dotted line near a clock and a secure message code. Ideal for security, authentication, time management, email notifications, privacy, digital communication, simple flat metaphor. Authentication vectors
Scissors cutting a dotted line near a clock and a secure message code. Ideal for security, authentication, time management, email notifications, privacy, digital communication, simple flat metaphor. Authentication vectors
Identity verification. Identity features a checklist, user authentication, and a secure shield with lock icons. Identity ensures safety, compliance, and fraud prevention. For cybersecurity, business. Authentication vectors
Identity verification. Identity features a checklist, user authentication, and a secure shield with lock icons. Identity ensures safety, compliance, and fraud prevention. For cybersecurity, business. Authentication vectors
A minimalist black padlock icon featuring a simple, scalable vector design. Ideal for security-related branding, website locks, or app authentication interfaces. Fully editable vector graphic. Authentication vectors
A minimalist black padlock icon featuring a simple, scalable vector design. Ideal for security-related branding, website locks, or app authentication interfaces. Fully editable vector graphic. Authentication vectors
A set of colorful interlocking fingerprint icons in vibrant shades, symbolizing connection, security, and unique identity. This dynamic vector graphic is ideal for collaborative projects, digital authentication, or network security themes. Modern, engaging, and abstract. vector design Generative AI. Authentication vectors
A set of colorful interlocking fingerprint icons in vibrant shades, symbolizing connection, security, and unique identity. This dynamic vector graphic is ideal for collaborative projects, digital authentication, or network security themes. Modern, engaging, and abstract. vector design Generative AI. Authentication vectors
An abstract fingerprint outline vector illustration, conveying digital identity, security, and personal authentication. This clean graphic is perfect for cybersecurity, biometric systems, or privacy-related applications. Modern, versatile, and easily recognizable. vector design Generative AI. Authentication vectors
An abstract fingerprint outline vector illustration, conveying digital identity, security, and personal authentication. This clean graphic is perfect for cybersecurity, biometric systems, or privacy-related applications. Modern, versatile, and easily recognizable. vector design Generative AI. Authentication vectors
A detailed vector graphic of a fingerprint, presented in crisp black lines. This widely recognized symbol is ideal for security systems, user authentication, or forensic applications. Provided in high resolution and suitable for both web and print use, vector design Generative AI. Authentication vectors
A detailed vector graphic of a fingerprint, presented in crisp black lines. This widely recognized symbol is ideal for security systems, user authentication, or forensic applications. Provided in high resolution and suitable for both web and print use, vector design Generative AI. Authentication vectors
Artificial intelligence, robotics, authentication, technology, security systems, innovation. A robot reaching for an eye dropper with fingerprint icon nearby. Artificial intelligence. Authentication vectors
Artificial intelligence, robotics, authentication, technology, security systems, innovation. A robot reaching for an eye dropper with fingerprint icon nearby. Artificial intelligence. Authentication vectors
Hand holding keys symbolizing access, shield with a padlock representing security, thumbs-up for approval. Ideal for security, authentication, protection, safety, trust, privacy simple landing page. Authentication vectors
Hand holding keys symbolizing access, shield with a padlock representing security, thumbs-up for approval. Ideal for security, authentication, protection, safety, trust, privacy simple landing page. Authentication vectors
Data protection, online security, user authentication, financial privacy, identity management, and secure transactions. Simple vector of user profile, padlock and dollar coin. Online security. Authentication vectors
Data protection, online security, user authentication, financial privacy, identity management, and secure transactions. Simple vector of user profile, padlock and dollar coin. Online security. Authentication vectors
Voice recognition, cloud storage, data management, digital authentication, QR code scanning, secure records. Microphone icon with sound waves, cloud QR code and documents. Voice recognition. Authentication vectors
Voice recognition, cloud storage, data management, digital authentication, QR code scanning, secure records. Microphone icon with sound waves, cloud QR code and documents. Voice recognition. Authentication vectors
Digital security and privacy protection landing page banner a magnifying glass with an eye and a smartphone. Data safety, identity verification, online monitoring, cyber defense, authentication. Authentication vectors
Digital security and privacy protection landing page banner a magnifying glass with an eye and a smartphone. Data safety, identity verification, online monitoring, cyber defense, authentication. Authentication vectors
Collection of outline icons illustrating various aspects of fingerprint biometrics, emphasizing scanning, authentication, privacy, cyber security, and personal identification. Authentication vectors
Collection of outline icons illustrating various aspects of fingerprint biometrics, emphasizing scanning, authentication, privacy, cyber security, and personal identification. Authentication vectors
Biometric fingerprint identification and personal data security icon collection in black and white. Representing various authentication. Privacy. And touch id concepts. Authentication vectors
Biometric fingerprint identification and personal data security icon collection in black and white. Representing various authentication. Privacy. And touch id concepts. Authentication vectors
Clean light bulb icon with qr code symbol representing digital scanning, identification, and mobile data access. Ideal for technology, payment, and authentication themes. Authentication vectors
Clean light bulb icon with qr code symbol representing digital scanning, identification, and mobile data access. Ideal for technology, payment, and authentication themes. Authentication vectors
Authentication, media content, technology, digital tools, innovation, creativity. A checkmark, audio waveform and cloud with sun. Authentication and media content concepts. Authentication vectors
Authentication, media content, technology, digital tools, innovation, creativity. A checkmark, audio waveform and cloud with sun. Authentication and media content concepts. Authentication vectors
User face scan interface and secure shield symbolizing data protection, digital identity, privacy assurance. Ideal for tech, biometrics, cybersecurity, privacy policy, authentication, data. Authentication vectors
User face scan interface and secure shield symbolizing data protection, digital identity, privacy assurance. Ideal for tech, biometrics, cybersecurity, privacy policy, authentication, data. Authentication vectors
Document list, padlock, unlock prompt, and ellipsis icon symbolize access control, privacy, and secure file management. Ideal for cybersecurity, privacy, data sharing authentication secure. Authentication vectors
Document list, padlock, unlock prompt, and ellipsis icon symbolize access control, privacy, and secure file management. Ideal for cybersecurity, privacy, data sharing authentication secure. Authentication vectors