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A COVID-19 vaccine card is a record showing information about the vaccine received, such as the date, brand, and location. Different countries issue digital or paper cards, and some require them for travel or other purposes.
PeduliLindungi, now SatuSehat, is a national integrated health data exchange platform and a COVID-19 contact tracing app in Indonesia. It was launched in 2020 and became mandatory for public transportation and some public places, but was later rebranded as a citizen health app in 2023.
Learn about the health and public movement restriction issued by the Indonesian government in response to the COVID-19 pandemic. Find out the background, legal basis, and implementation of the policy in different regions and its name changes over time.
A certificate signing request (CSR) is a message sent to a certificate authority to apply for a digital identity certificate. It contains the public key, identifying information and a proof of authenticity of the applicant.
IP code or ingress protection code indicates how well a device is protected against water and dust. It is defined by the International Electrotechnical Commission (IEC) and classified by two digits, such as IP67 for dust-tight and water-resistant.
A root certificate is a public key certificate that identifies a root certificate authority (CA) and forms the basis of an X.509-based public key infrastructure (PKI). Learn about the role, distribution, and incidents of root certificates in cryptography and computer security.
A check mark ( , , etc.) is a symbol used to indicate yes or correct in many countries. Learn about its history, international differences, Unicode codes, and keyboard entry.
A self-signed certificate is a public key certificate that is not issued by a certificate authority (CA). Learn about the benefits, trust issues, uses and name confusion of self-signed certificates in cryptography and computer security.