Digest Auth ()
Description: Digest Authentication is a method used in computing to authenticate a user and verify their access rights to a system or server. It is a protocol that operates at the application layer of a network's protocol stack, and it is designed to reduce the potential risk of transmitting passwords in plain text, which basic authentication does. Instead of sending passwords in plain text, Digest Authentication uses a hash function on the password and other data to generate a unique string, or 'digest', which is then sent across the network. This makes it more difficult for unauthorized users to intercept and decipher the password. Additional information: Digest Authentication is a method used to authenticate a user or a client before granting them access to a particular resource or system. It is a protocol that is part of the Internet Engineering Task Force (IETF) HTTP protocol suite. Digest Authentication is an improvement over Basic Authentication, which transmits user credentials in plaintext, making it vulnerable to interception and misuse. In Digest Authentication, the user credentials are not sent over the network in plaintext. Instead, the credentials are hashed using a cryptographic function, such as MD5, and then sent to the server. This makes it more difficult for an attacker to gain access to the actual credentials. The process of Digest Authentication involves several steps: 1. The client sends a request to the server. 2. The server responds with a special code known as a "nonce" (a number used once), along with a 401 Unauthorized response. 3. The client responds by sending an encrypted response that includes the username, the password, the given nonce, the HTTP method, and the requested URL. 4. The server then verifies this information. If the information is correct, the server grants access to the requested resource. If the information is incorrect, the server denies access. Digest Authentication provides a more secure method of authentication than Basic Authentication. However, it is not foolproof. For example, it is vulnerable to man-in-the-middle attacks, where an attacker intercepts the communication between the client and the server. Additionally, if an attacker gains access to the hashed credentials, they can use a rainbow table to potentially discover the plaintext password. Despite these vulnerabilities, Digest Authentication is still widely used in situations where the transmission of credentials in plaintext is unacceptable, and where more secure methods of authentication, such as HTTPS or SSL, are not available or practical. Example: Digest Authentication is a method used to authenticate a user, where the user's credentials are not sent in plaintext over the network. Instead, a hash function is used to send a digest (a unique string of characters) to the server. Here are some examples of applying Digest Authentication: 1. Web Services: Digest Authentication is often used in web services where the client needs to authenticate itself to the server. The client sends a request to the server, the server responds with a nonce (a random value that can only be used once), the client then hashes its username, password, and the nonce, and sends this hash back to the server. The server performs the same hash function and if the results match, the client is authenticated. 2. SIP Protocol: The Session Initiation Protocol (SIP), used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP), uses Digest Authentication to authenticate users. When a user attempts to initiate a session, the SIP server challenges the user for credentials. The user then responds with a digest, which is a hash of the username, password, session ID, and a server-provided nonce. 3. HTTP Protocol: Digest Authentication is also used in HTTP where it provides a more secure alternative to Basic Authentication. When a client sends a request to access a protected resource on a web server, the server sends back a nonce. The client then creates a hash using its credentials and the nonce and sends this back to the server. If the server can create the same hash with the stored credentials, it grants access to the resource. 4. IoT Devices: Internet of Things (IoT) devices, such as smart home devices, also use Digest Authentication to ensure that only authorized users can access and control them. The device will challenge anyone attempting to access it for their credentials, and only grant access if the hashed response matches what it expects. 5. VPN Connections: Virtual Private Networks (VPNs) can use Digest Authentication to verify the identity of users trying to establish a secure connection. This adds an extra layer of security to the VPN, making it harder for unauthorized users to gain access. Publisher: EIRA team LOST view: TV-Technical Agreements Identifier: http://data.europa.eu/dr8/egovera/DigestAuthContract EIRA traceability: eira:TechnicalInteroperabilityAgreementContract EIRA concept: eira:SolutionBuildingBlock Last modification: 2023-08-03 dct:identifier: http://data.europa.eu/dr8/egovera/DigestAuthContract dct:title: Digest Auth Contract
eira:PURIhttp://data.europa.eu/dr8/egovera/DigestAuthContract
eira:ABBeira:TechnicalInteroperabilityAgreementContract
dct:modified2023-08-03
dct:identifierhttp://data.europa.eu/dr8/egovera/DigestAuthContract
dct:titleDigest Auth Contract
skos:exampleDigest Authentication is a method used to authenticate a user, where the user's credentials are not sent in plaintext over the network. Instead, a hash function is used to send a digest (a unique string of characters) to the server. Here are some examples of applying Digest Authentication: 1. Web Services: Digest Authentication is often used in web services where the client needs to authenticate itself to the server. The client sends a request to the server, the server responds with a nonce (a random value that can only be used once), the client then hashes its username, password, and the nonce, and sends this hash back to the server. The server performs the same hash function and if the results match, the client is authenticated. 2. SIP Protocol: The Session Initiation Protocol (SIP), used for controlling multimedia communication sessions such as voice and video calls over Internet Protocol (IP), uses Digest Authentication to authenticate users. When a user attempts to initiate a session, the SIP server challenges the user for credentials. The user then responds with a digest, which is a hash of the username, password, session ID, and a server-provided nonce. 3. HTTP Protocol: Digest Authentication is also used in HTTP where it provides a more secure alternative to Basic Authentication. When a client sends a request to access a protected resource on a web server, the server sends back a nonce. The client then creates a hash using its credentials and the nonce and sends this back to the server. If the server can create the same hash with the stored credentials, it grants access to the resource. 4. IoT Devices: Internet of Things (IoT) devices, such as smart home devices, also use Digest Authentication to ensure that only authorized users can access and control them. The device will challenge anyone attempting to access it for their credentials, and only grant access if the hashed response matches what it expects. 5. VPN Connections: Virtual Private Networks (VPNs) can use Digest Authentication to verify the identity of users trying to establish a secure connection. This adds an extra layer of security to the VPN, making it harder for unauthorized users to gain access.
eira:concepteira:SolutionBuildingBlock
skos:noteDigest Authentication is a method used to authenticate a user or a client before granting them access to a particular resource or system. It is a protocol that is part of the Internet Engineering Task Force (IETF) HTTP protocol suite. Digest Authentication is an improvement over Basic Authentication, which transmits user credentials in plaintext, making it vulnerable to interception and misuse. In Digest Authentication, the user credentials are not sent over the network in plaintext. Instead, the credentials are hashed using a cryptographic function, such as MD5, and then sent to the server. This makes it more difficult for an attacker to gain access to the actual credentials. The process of Digest Authentication involves several steps: 1. The client sends a request to the server. 2. The server responds with a special code known as a "nonce" (a number used once), along with a 401 Unauthorized response. 3. The client responds by sending an encrypted response that includes the username, the password, the given nonce, the HTTP method, and the requested URL. 4. The server then verifies this information. If the information is correct, the server grants access to the requested resource. If the information is incorrect, the server denies access. Digest Authentication provides a more secure method of authentication than Basic Authentication. However, it is not foolproof. For example, it is vulnerable to man-in-the-middle attacks, where an attacker intercepts the communication between the client and the server. Additionally, if an attacker gains access to the hashed credentials, they can use a rainbow table to potentially discover the plaintext password. Despite these vulnerabilities, Digest Authentication is still widely used in situations where the transmission of credentials in plaintext is unacceptable, and where more secure methods of authentication, such as HTTPS or SSL, are not available or practical.
dct:descriptionDigest Authentication is a method used in computing to authenticate a user and verify their access rights to a system or server. It is a protocol that operates at the application layer of a network's protocol stack, and it is designed to reduce the potential risk of transmitting passwords in plain text, which basic authentication does. Instead of sending passwords in plain text, Digest Authentication uses a hash function on the password and other data to generate a unique string, or 'digest', which is then sent across the network. This makes it more difficult for unauthorized users to intercept and decipher the password.
dct:publisherEIRA team
dct:source
eira:viewTV-Technical Agreements